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Service Manual 2

1. Operations The display shows e To begin press SELECT FUNCTION once TECH PROGRAMMING and COPY key twice in the standby mode with YES c 1 4 NO 2 no message in memory c e Press lt key 1 LOCAL TEST YES lt NO 2 1 4 c e Press lt key 1 SELF DIAGNOSIS YES NO 2 1 8 3 e Enter 3 3 LED TEST YES NO 25 1 8 e Press key 3 LED TEST TESTING e Observe and check that LEDs are blinking All LEDs will be sequentially turned on for one second in the following order Start ALARM DARK NORMAL LIGHT STD FINE second all LED off lt all LED on PHOTO EX FINE e interval e Toend the test press STOP key Cleaning and Maintenance 6 14 OKIOFFICE 44 Serv Man P N 59276801 6 8 Tone Send Test 1 Purpose To send the G3 tonal frequencies to the line 2 Procedure Operations The display shows e To begin press SELECT FUNCTION key once 1 SELF DIAGNOSIS COPY key twice and key twice with no YES NO 2 1 8 message in memory 4 4 TONE SEND TEST H P P e Enter 4 YES NO 2 1 8 CML relay on I 4 TONE SEND TEST abu e Press key 2100HZ SENDING e After the checking pr
2. MF TONE DP PULSE MF YES NO O PBX LINE OFF YES NO pc FLASH EARTH NORMAL F YES NO gt y 2 AUTO START OFF YES NO 25 gt ES Y Y DIAL PREFIX will be DIAL PREE X DIAL PREFIX included SPACE OFF YES NO JENTER 4DIGITS lt IN CASE of 4 SPACE 0 9 or SPACE lt DIAL PREFIX 0 YES e NO Jj B Installation Procedure 2 55 OKIOFFICE 44 Service Manual P N 59276801 2 9 6 Clock Adjustment Operations The display shows e To bring the LCD up to the desired message press SELECT FUNCTION key once and E one touch key No 9 in the standby mode MEMORY AVAI In case of no message in memory Press OT9 SELECT FUNCTI e Enter 3 using the ten key pad 1 FUNC PROGRAMMING YES NO 2 1 4 3 PY 3 CLOCK ADJUSTMENT YES c NO 3 1 4 e Press e key e Enter date and time by using the ten key pad 0 to 9 keys 04 25 96 12 33 YES NO 2 0 9 uu Installation Procedure 2 56 OKIOFFICE 44 Service Manual P N 59276801 2 9 7 Dual Access Operation This feature 1s not available with the OKIOFFICE 44 Installation Procedure 2 57 OKIOFFICE 44 Service Manual P N 59276801 2 9 8 System Data Programming TSI CSI Default Blank Registration of sender ID Default Blank R
3. L1 and L2 r4 Yes No Tones appear across Pin A8 B8 S and Pin A12 B12 0V of CN10 MCNT Yes Replace R44 board Signal route IC8 26 to 33 ADO to AD7 gt IC8 1 2 2 IC12 7 S gt CN10 A8 B8 S Signal route Replace WN5 Board CN3 15 16 gt TI 3 1 gt CN1 3 4 Yes Solved End No Y Wesce RAA Board kese Possible cause ES AAG CML signal Y nem to section 7 11 Troubleshooting 7 19 OKIOFFICE 44 Service Manual P N 59276801 7 1 13 High speed Modem Test Com Connect oscilloscope probe across the line terminals L1 and L2 Perform H MODEM SEND TEST for the transmitter and H MODEM REC TEST for the receiver See Fig 6 9 1 RX whi mode TX or RX gt A TX Yes across L1 and L2 No TX End Modem s signal appears Yes across Modems signal appears CN3 WN5 Replace WN5 Board Solved Yes Signal route CN3 15 162 T1 3 15 CN1 3 4 Pe Replace R44 Board Y Signal route Replace R44 Board L IC8 26 to 33 ADO to AD7 CN1 3 4 S Troubleshooting 7 20 IC8 1 2 IC12 7 S OCNI10 AS8 B8 S Possible cause CML signal Return to section 7 1 1 OKIOFFICE 44 Service Manual P N 59276801 E RX Receiver The error counter of LCD N Yes stops counting up Receive signal appear
4. 01x H WON ASP OTTOJA TIS HSV IH yospue x E uondo Td L SUIYJOOUIS I9319Au02 00 00C OOV ASL onuoo 988 0A YSIH v e VDOI A Ta Surpooeq s344q Qp9 19gng XH LSO HOI qoc YWA uod O I uoneiaues SD O1U09 vp8cI o quoo5 sdqy gv INHdOIN 801 I X 7HINCI F6C X snq Ionuooyp1epy ss iIppy NdO HdO 19d ZHN 07 ONUOD Joy gt um NO sing TOJOUL Q tap 00 c EVDOI ANA 1 OVLVGH S T X Lva TX LA IND masa O esoydriag lt AS HS Te X VDOI Aergns IX xugeur youms Ady NO WIUL S OP 9 CUTINO ISAIA JOALIG dI Od ALO TX gx TA CIS GIN D INV3IS d uondo WAW Josu s Feu py SNO OKIOFFICE 44 Serv Man P N 59276801 A 11 Board Descriptions G3 Receive Mode Figure A2 1 3 shows the G3 receive picture signal route In the G3 mode the high speed picture signal arriving from the telephone line at L1 and L2 of NCU passes through the transformer T1 and the amplifier and is input to the MODE
5. Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 3 Operator Panel Illustrated Parts List D 8 OKIOFFICE 44 Service Manual P N 59276801 Section 3 Table Operator Panel Oki parts Number Description OKIDATA P N 40022701 OP Panel Assy 40022701 RSPL 40023410 Sheet F 048 40023410 RSPL 40023501 Sheet 0 048 40023501 RSPL 40023601 Illustrated Parts List Sheet Cover 40023601 OKIOFFICE 44 Service Manual P N 59276801 Section 4 Operator Panel Assembly OKIOFFICE 44 Service Manual P N 59276801 10 Illustrated Parts List Section 4 Table Operator Panel Assembly Oki parts Number Description OKIDATA P N N A Case OPE T N A 40086701 Board 04W 40086701 RSPL N A Holder LCD N A N A N A Button Function Ten Key Round N A N A 40023201 Button Start 40023201 RSPL 40023301 Button Stop 40023301 RSPL 4YB4134 1009P001 LCD N A B SCREW A 4PB4120 1113P001 Rubber Connector Illustrated Parts List D 11 OKIOFFICE 44 Service Manual P N 59276801 Section 5 Frame Assembly Scanner L Illustrated Parts List D 12 OKIOFFICE 44 Service Manua
6. aassassss 4 24 42 1 3 16 Pressure Roller B Back Up Roller 4 25 4 1 3 17 Hopping Shaft Assembly U u i h eiaa 4 26 4 1 3 18 Paper Sensor E Paper Sensor Exit and Toner Sensor Assembly 4 27 J 3 E enis Uite a LO IEEE 4 28 s leiE ragrgee c 5 1 5 1 Setting of LED Print Head Drive Wining ee tor po rri datis te et Ene te Ri pe ieen CH aedini 5 1 Settings of Technical Function No 27 Table 5 1 1 5 1 5 2 Confirmation Items m 5 2 Seryic CaDtI li uuu e ea EE EE E E pidadand buat ESETA RE EEr Rae EEE 5 3 5 3 Measurement somien e a ama qaa aaa E 5 4 Service clio saponi a a E O E 5 5 Table of Contents TOC 3 OKIOFFICE 44 Service Manual P N 59276801 Section 6 Cleaning and Maintenancoes 6 1 6 1 Lons mables Replacement u suala Pes emet vat qeu tabe duda set dut Us dur iU 6 1 Us r Replaceable Tems Ue acd seas ce ananman D uw lec etcetera ute s dag de uU da d aa 6 1 Service Parts BU Su ecco br E EE E EEE E EEE AEE e pbulp c Rute ee pum emot 6 1 Constables Diaeram Figure 6 1 Dou onini pases hamana sanka aqe RN tru uae 6 1 S ung A 6 3 Re liability 715 13 CURA rc 6 3 62 Preventative CIS I RET E E EA EAEI EE 6 4 Preventative Maintenance Table 6 2 1 uu a u aaa aa a a aa 6 4 P
7. No Replace OPE 04W Yes Solved No Replace R44 Yes Solved gt No we Y Check R44 board and the cable between R44 and OPE O4W boards NOTE Perform this action before replacing the OPE Panel unit or the R44 Board Return to section 7 1 1 OKIOFFICE 44 Service Manual P N 59276801 7 1 3 ALARM LED On Start Checking Points No Communication error Yes Yes cover OPEN on Lcb Press STOP key No Y PRINTER ALARM i i No alarm ALARM LED goes off No Yes Yes PAPER JAM alarm gt No Yes NO PAPER alarm Y No Go to 7 1 22 Printer unit Y TONER LOW alarm Return to section 7 1 1 w 1 Replace toner cartridge 2 Check photocoupler of board 3 Replace R44 board DOCUMENT JAM Yes alarm No 1 Check that the document transport path up to PC2 is normal 2 Check PC2 3 Replace R44 board See 7 1 20 for further details End Note PRINTER ALARM i will be shown as follows PRINTER ALARM 1 to PRINTER ALARM 4 Troubleshooting 7 5 OKIOFFICE 44 Service Manual P N 59276801 7 1 4 Printing Test Failure Co Perform SELF DIAGNOSIS No x Print test OK gt uss No End Replace R44 Board Y Solved gt No Return to section 7 1 1 Go to 7 1 22 printer unit
8. 7 47 14 Poor x lr 7 48 Section 8 Dipswitch Settings J J J J 8 1 8 1 ciuis r DM saus E E E RO u aquqa cosas 8 1 Table of Contents TOC 5 OKIOFFICE 44 Service Manual P N 59276801 Appendix A Board Descriptions A 1 PREPAC E MR A 1 Service Caution seneni iep EE EE e o o enone A I A1 1 UnitContisuration and Block Diagram asss asassssaassassssaasassssasaassasaasssssssssa A 3 OKI OFFICE44 Block Diagram Figure A1 2 1 eet dtu dius A 4 Block Diagram ADDT8VIQ0 DBS u u coe imc aa iy sel hes tu patuere mtus omma sd Mp Eei A 5 ALS Function of Each PE o coemeterio ient Odi e adii UR UN npa hn qha esu ER D D ue ub A 6 Main Control R44 Board e trt rr tne AAEN Peel ENEE EET A 6 Operation Panel Unit O4W Board Saee seesdetouacedieep dead nasi e a aa aqa SQA A 6 NCU Board UNCI Tc R P A 7 Power SappLy DIDID ue eect dei etum EE A iilos EE E REE A 7 Memory Board OPON T deus aE EE E EOE E EE SIETE A 7 CTR B rd PC Interbace eise as aves A E E Pr eee de e P Ree bea A 7 HOOK Bear pan Mc A 7 TEEU B rd Qp tol upaya smua inated asti Sa aS lus ME ad ena Ede RR A 7 AXL Signal Plow Explanation uqu eret curare vati inet era eal d
9. CN2 1 2 IC2 e Rok OFF HOOK Detector CN2 2 2 b IC1 Ker SR RL2 Ring Detector CN1 C31 R5 CML 4 T L 9 N Impedance I matching 5 ARi AR RL DP RL3 NT E t R10 11 1 arresters RL6 T9 A R574 R504 Receiving Sensitivity Adj 02 RI LZ ev e1n614 ONN Jo urei6eiq xoorg A3 8 TELU Circuit Diagram Option The TEL U Board is used for control of the telephone set when the optional telephone assembly is installed on the facsimile transceiver 1 Block diagram Figure A3 8 1 shows a block diagram of TELU circuit 2 General functions of this circuit are as follows Speech IC Sending Level Adjustment Receiving Level Adjustment Sending Frequency Response Adjustment Side Tone Adjustment DC V 1 Characteristics Adjustment Return Loss Adjustment AGC automatic gain control Manual Pad Sending Frequency Response Adjustment Receiving Frequency Response Adjustment Handset Interface 3 Explanation of TEL circuit diagram This section describes functional blocks of individual TEL circuit diagram 3 TELU circuit diagram TELU circuit diagram is formed by Speech IC and interface of UNC HOOK SW and HANDSET 1 Speech IC The hybrid circuit is formed by Speech IC 2 Handset Interface Transmitter signal route Signal from the microphone of the handset is input to pin 15 and 16 of Speech IC This signal i
10. 6 25 0115 SEVICE COE ages acerca ag R E E A emcee E E EE 6 27 Service Code List Table 6 15 L 1 2 raneren ia A AE E EEREN 6 28 Service Code Last Table 6 15 1 2 2 innesa E E REE 6 29 Section 7 Troubleshooting annone ente Enna Eee Ra p Annu ndn J J J 7 1 7 1 ses c 7 1 ICE VICE CMU UOTE M T 7 2 T Li Overall Troubleshooting Flow Chart u aaqastassaqqasqaqasasquykaqassaqqkassassa 7 3 D No UENPIP CET 7 4 Tele IE Ie UNIS o M 7 5 FEN MB Printing Test Failure P 7 6 Tele NO Local Op p P 7 7 ERE Auto Dial Failure cM 7 9 y Transmission Problem m S 7 10 1 1 8 Auto Reception Fallure 2 ua o ade ecrire iei ed cbe ida asus 7 13 7 19 Reception ProbD m uyucs 7 14 7410 Sensor Calibration TESt c 7 16 TAAl LED T sto a ae sas 7 17 Table of Contents TOC 4 OKIOFFICE 44 Service Manual P N 59276801 7 1 12 Tone Send Test unes Ee ge eine veis leeds ee 7 19 7 1 13 High speed Modemi Test s 7 20 De MeN A MF Send IeSt a a anan aan an ana aaa anaa aian EEES 7 22 7 1 15 Tone TEL FAX Send Test arresi diinn aaa ar E 7 23 7 1086 No Acoustic Line Monitor u inte Soper eda eee 7 24 DAVE No Doc m nt Feeding au u acetate m 7 25 TANS Multiple Document Feeding oie eed Lp un ean
11. Troubleshooting 7 6 OKIOFFICE 44 Service Manual P N 59276801 7 1 5 No Local Copy Start No Checking Points Printing function of self diagnosis is OK Yes Load a document Go to 7 1 4 Printing test failure The document is fed by No any length Y Yes 1 Check PCI If defective replace 2 Replace R44 board 3 Check the mechanical portion ocument feeds about 7cm Scan motor etc 2 75 inches and stops with Ne x the SELECT LOCATION i See 7 1 17 for further details i 2 message displayed 1 Check PC2 Yes 2 Replace R44 board Press COPY key Any document us copied in black No 1 Check 8 volt supply from PWU See 5 5 3 2 Replace R44 board 3 Replace the contact image sensor assembly No Copy quality OK Yes t Perform SENSOR CALIBRA TION including adjustment of level See 6 6 Yes lt Solved gt No Replace R44 board Return to section 7 1 1 Yes Solved No Y Replace the contact image sensor assembly Troubleshooting 7 7 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Troubleshooting 7 8 OKIOFFICE 44 Service Manual P N 59276801 7 1 6 Auto Dial Failure Start No Manual dial OK gt Yes Test other fax machines under the same Ca
12. 2 47 User Function Program Settings Table 2 9 4 3 4 2 48 User Function Program Settings Table 2 9 4 4 4 2 49 2 03 User s F nctions EXAmple 2o proe etii Dec airaa aa 2 50 F ncton Program 2 nn Pm eee shu nom ere aa ekora E etre 2 50 User s Functions Table 2 0 5 2 l u D exque inasi 2 51 Users Functions Table 2 0 5 272 uuu uaqta Eas 2 52 Ring Response TMe oec asa pies una nanam suma dE SEU MER ES 2 54 Dial Parameters Service Bit DFF eese nennen nennen 2 55 2 9 6 Clock Adj stment m 2 56 2 9 7 D al Acce ess Operation PP at eee ie eal tac ced a eae a A RAAST 2 57 2 08 System Data Programming nasa aqna lobe ux pu eset in ense aa ie 2 58 2 9 Dial Parameters Sebbl igo coe u uuu u ida eG ec ice Rubber dendi ed 2 60 Procedure NA P 2 60 Dial Parameters Settings Table 2 9 6 _ u uaaaaassaassassasasasssapassssqsesasa 2 62 2 9 10 EE dn Mi staal nataqa ae ata wal aa E E amu edad 2 63 gnari c eem ean a a a 2 63 Procedure e P 2 63 Self Diagnosis Print Test Example Figure 2 9 4 2 64 2911 ELM s 2 65 Tra SIBISSISWm l Lu u u em 2 65 i o NT m 2 65 Typical Transmission Flow Fig 230 9 once Hs maed pet Pha a en BEIM ERO 2 66 Typical Reception Flow
13. OTI OT Press COPY key twice Y 34 DELAYED TX 04 25 YES NO gt OT2 BROADCAST MEMORY TX YES LOC 4 NO 2 OT3 MAIL BOX NO ENTER 01 64 OT4 RELAY PASSWORD 0000 YES lt NO gt OTs 07 25 96 14 14 FAX WAITING TO BE POLLED No pene POLLING RX D SELECT LOCATION OT6 1 ACTIVITY REPORT OT7 YES NO 2 DRUM COUNT PRINT COUNT XXXXXX CLEAR NEXT 2 or NEXT 2 OT8 LOCATION PROGRAMMING ENTER SRCH OT A D t Power on while holding FUNCTION key down i 2 OT9 1 FUNC PROGRAMMING YES c NO 1 6 OTI0 1 PRINT MEMORY MSG YES C NO 21 3 Installation Procedure 2 41 j 1 4 for OKIOFFICE44 2 These operations can be used to bypass error conditions and directly enter either the user or service functions OKIOFFICE 44 Service Manual P N 59276801 One Touch Key Program Settings Table 2 9 4 1 4 Specifications Delayed transmission TX This function enters a message transmission time s and location s for execution at a specified time Broadcast memory transmission To make a one time selection of the memory transmission mode Max 56 remote locations can be specified by the following means One touch key with of without a group list Two dig
14. onuoo eSv oA ugTEH v VDOI TI 8X TA TIS C TNV3I je snq onuoo ejep sseippy ZHW 07 ZHPIS9 CE i x 1va x OLA e X j Ast ans TX XIIjeul youms Ady H Surgyoours Joj112Au02 00 00C OOV AALL ATa Surpoooq soXAq Qp9 19gng XH 180 onuoo 1ojuq HHO NO dino Ov 1 1 TNO e imi ivo TO10UI N tap 00 b c VDOI EXC J L v8cI IADA JOALIG 410d ALO CU TINO Tod 7 TINO peoy AHI INQ JOojourg Q NO B WIUL S OP 9 Josuas q V s Iomuoo Suruueog I VDOI Z SV LVdS or 0V LV dS aU TX 8X TA CIS aW D INV3IS d uondo WAW Sb 1 SNO egeui py OKIOFFICE 44 Serv Man P N 59276801 A 15 Board Descriptions 300 bps Receive Mode Figure A2 1 5 shows 300bps receive protocol signal route In G3 communication this is the route of the procedural control signals pre message post message phases etc at 300bps The 300bps modulated signals received via the telephone line L1 and L2 of the NCU are sent from pin R to Pin RXAI of the modem After demodulation by the modem the demodulated digital signals are sent to the CPU via the data bus from the modem The data is read a
15. pe evt pene Ii acm cipue dsas G 13 3 2 TEL buc 2g mm G 14 3 2 1 To Terim nate usu un Dam n S ae uk uhu a EE G 14 34 2 Selecting Destination DrIVv eth cde e ee Rp evae este nin G 14 3 3 Mam INT D qa D G 15 34 Environment Setting osse ua cp pod e a uama qaa Saqisqa G 15 4 Message Modifying Tool uu nun oe isole d eae epee cee G 16 4 1 Activatine h PG OUI a aahh nahua ic ead blu Debo asap G 16 4 2 Modifying MOSSHEB Locros ete eno piena tuia Dun eee cette eat Muti G 16 4 2 1 File Selection ee G 17 4 3 Saving Message cai Dese auqa aahh a a E noc en stetit utes G 17 4 3 1 REMUS de NUM G 18 BA Loading MeSsape uu aun un Sup MED NM E G 18 4 4 1 Confinimati lla u u NN G 19 4 5 Ober Message File una a n aan au a unu eee eee eee eee G 19 Table of Contents TOC 8 OKIOFFICE 44 Service Manual P N 59276801 Appendix H Product Service Bulletins H 1 H 1 General nforimatlol 2 ttt ta e revue eto ce eet eu a eas cepe aee Foe eite d eee Ei H 1 OKIDATA S Web Site eie ee rettet te XE ec reete E eter serine ees H 1 Faz able Facts teer UE DU eee H 1 OKILINK TII eee ose Le M P LM H 1 SENICE C aUtion ere UE IMEEM Le P LE e S EIE H 3 Appendix I Recommended Spare Parts List RSPL l 1 LI General Information evades eet eae oe eet Eee ere ve er Ea eet exero a Eee eee ay ee eee
16. Board Descriptions Figure A3 1 12 Related Signals of Send Motor A 35 OKIOFFICE 44 Serv Man P N 59276801 A3 1 11 R44 Circuit Diagram 1 Block diagram The circuit diagram consists of the following connectors Connector CN13 that provides an interface between R44 board and optional memory board Connector CN11 and CN12 that provides an interface between R44 board and optional CTR board Figure A3 1 13 shows the interface between R44 and memory board Figure A3 1 14 shows the interface between R44 and CTR PC interface unit board Note 1 A 1 Mbyte MEM 2 memory board can be added to the memory capacity for OKIOFFICE 44 R44 MEM MEM Z option ADO to AD7 CN13 CN ADO to AD7 lt AN J J CPU A0 to AI8 A N AO to A18 RD N B All RD N a WRL N B12 WRL N SEIS PCSI N to PCS4 N i m PCSI N to PCSA N B19 B20 No he y P SRAM A19 PSREAD N IOGA PSREAD N gt RAMI RAM2 A13 B13 5V 5V A5 B5 A18 0V gt B5 i oy B18 Figure A3 1 13 Interface between R44 Board and Memory Board option Board Descriptions A 36 OKIOFFICE 44 Serv Man P N 59276801 Transceiver IOGA3 PDO PD7 T PDO PD7 Busy nAck PError Select Busy nFault nAck nStrobe PError nlnit Select nSelectIn nFault nAutoFd nStrobe BREQ nInit BACK nS
17. C 2 16 PRINTER CLEANING 05 SENDER ID Selection by YES NO keys or digit 1 to 5 06 MONITOR VOLUME v 07 BUZZER VOLUME OT9 USER PROGRAM D 08 CLOSED NETWORK 09 TX MODE DEFAULT 10 T F TIMER PRG 11 RING RESPONSE 4 1 FUNCTION PROGRAM gt 12 DISTINCTIVE RING 13 I ST PAPER SIZE 14 D 15 USER LANGUAGE 16 INCOMING RING 17 REMOTE RECEIVE y 18 MEM FEEDER SW 2 DIAL PARAMETER 2 19 20 ECM FUNCTION 21 REMOTE DIAGNOSIS C REDIAL TRIES 0 10 TIMES 55 PC FAX SWITCH 23 ONE TOUCH PARAM REDIALINTERVAL 1 6 MINUTES C DIAL TONE DETECT OFF ON BUSY TONEDETECT OFF ON C MF TONE DP PULSE D MF DP PULSE DIAL RATE 10 16 20 PPS S PULSEMAKERATIO 33 99 S C PULSEDIALTYPE IN 10 N N 1 S MF TONE DURATION 75 85 100 MS C PBX LINE OFF ON FLASH EARTH NORMAL Flash Earth Normal C AUTO START OFF ON C DIAL PREFIX IOFPDigit s gt L 3 CLOCK ADJUSTMENT 4 SYSTEM DATA PRG C TSUCSI C SENDER ID ALL BACK NO L OT10 PRINT OPERATION __ SUBST MSG PRINT c CE NO OKIOFFICE 44 Service Manual P N 59276801 Powered on while holding the COPY key down v TECHINICAL PROGRAMMING D Installation Procedure 1 LOCAL TEST 3 SYSTEM RESET 4 DEFAULT TYPE SET p gt Selection by YES NO keys or di
18. Kex 1 K ddns uonpnsrs r anol pp TOLLTOLSNO O Jodeg 4 5 Jodeg JSpSues Josuas PPNO QO Josuos 1o u N dn oeg O Tello Ayddns To O1 Suidol A 8 IMO 1OJOo os m 4 o OUO Suido oAeq REST ibis Surueo id H Qo A VN Jodeg A a 3 Suyo LA ae Fp epe q o f G IWO peoq JO150 T Z 1d Jodeq numm C o lt L Josie u o ga A 9 D A peou dd pieoq Dd amo sarios 900 X VADO x 2 n os a umop eoe ne D ewp oseuiq d o co C o Oo lt LE Q O Jo O1 O yoola 3 Jodeg Lu OKIOFFICE 44 Service Manual P N 59276801 Brief Technical Description 3 4 Fundamentals of the Electro Photographic Process The electro photographic process involves six sub processes 1 Charging 2 Exposure 3 Development 4 Transfer 5 Fusing 6 Cleaning Each process is briefly explained below Illustration Description 1 The surface of the electrophotographic Image drum is uniformly charged with negative charges by applying a negative voltage to the charge roller Charge roller When the applied DC voltage exceeds a threshold value charging of the drum begins Charging Light emitted from the LED head irradiates the negatively charged surface The potential of the irradiated part of the Image drum surface is raised so that an electrostatic latent image associated with the print image is formed o n a x m Toner is attracted to the expo
19. OKIOFFICE 44 Service Manual P N 59276801 7 1 22 Printer Unit 7 1 22 1 Precautions 1 Points to check before correcting image troubles 1 Is the printer being run in proper ambient conditions 2 Have the supplies toner and the routine replacement part EP unit been replaced properly 3 Is the recording paper normal 4 Has the EP unit been loaded properly 2 Tips for correcting image troubles 1 Do not touch or bring foreign matter into contact with the surface of the drum 2 Do not expose the drum to direct sunlight 3 Keep hands off the fuser unit as it is heated during operation 4 Do not expose the drum to light for longer than 5 minutes at room temperature Troubleshooting 7 31 OKIOFFICE 44 Service Manual P N 59276801 7 1 22 2 Troubleshooting Flow Charts of Printer Unit Overall Troubleshooting Flowchart Problems Problems indicated Troubleshoot Perform detailed by LCD message according to the LCD troubleshooting with 2 2 message trouble list gt one of troubleshooting See Table 6 22 1 from chart 1 to 7 Image Problems Troubleshoot Perform trouble Problems not indicated according to the image shooting with one of by LCD messages gt trouble list troubleshooting See Table
20. 105A1067C1001 FPC 25 12 Core ce 236A3161P0002 TEL LINE Cable 56621001 4Y 3512 1485P001 AC CORD 56631801 4YS4111 5581P001 CORD TEL1 TEL 2 N A 105A1062C0002 0443 167251 Core N A 105A1068C1004 SFC 8 Core For TEL LINE Cord use Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 13 Miscellaneous Items Whole Unit OKIOFFICE 44 120 V English P N 62209101 OKIOFFICE 44 120 V English Spanish P N 62209103 OKIOFFICE 44 120 V English Portuguese P N 62209106 OKIOFFICE 44 120 V English French P N 62209104 OKIOFFICE 44 220 V English Spanish P N 62209102 OKIOFFICE 44 220 V Enlgish Portuguese P N 62209105 Consumables Drum Image P N 56116101 Cartridge Toner P N 52106201 Options Handset Option OKIOFFICE 44 P N 70031801 1 MB Fax Memory Upgrade Option OO44 P N 7032201 Packaging Box Spares Kraft OKIOFFICE 44 P N 53552209 Cap End Left OKIOFFICE 44 P N 53591101 Cap End Right OKIOFFICE 44 P N 53591102 Illustrated Parts List D 30 OKIOFFICE 44 Service Manual P N 59276801 User s Manuals Quick Start Guide English Only Handbook Hardware Guide Software Manual OCR Service Technical Manuals Kit OKIOFFICE 44 Service Training Includes the items listed below Sheet ID Sheet Read Me First Manual Certification Manual Service Quick
21. 7 TIS 1 ER ES E E gt lt NO Setting X 0 KM gt 1 8 KM 6 KM gt 7 2 KM 90 KM X ENU YES ATOR lt NO 3 x Setting 0 DB 1 DB gt 15 DB gt 0 DB eevee X 23 T F TONE YES Setting gt X 15 DB 0 DB gt 1 DB gt gt 0 DB eeee OKIOFFICE 44 Service Manual P N 59276801 Technical Functions 24 to 27 Table 2 9 2 4 5 T F 24 MF attenuator 24 MF ATT gt X 0 DB gt 1 DB gt gt 15 DB 0 DB gt eevee 25 Ring duration detection time RING DURA 10 MS ui YES lt NO To26 CML TIMING X 10 99 RA 10 MS ENTER 2DIGITS 2 digit timer entered 24 RING DURA 10 MS gt 11 YES e NO Example 26 CML timing 26 CML TIMING 100MS bs X YES NO To27 HEAD STROBE X 01 19 CML TIMING 100MS 01 ENTER 2DIGITS 2 digit timer entered 26 CML TIMING 100MS gt 03 YES NO gt Example 27 Head strobe EAD STROBE c X YES lt lt To 28 HEAD WIDTH X 5digits 0 1 27 HEAD STROBE 01100 ENTER 0 1
22. AO 5V S rosy e1n614 MOd 870 JO WesbeIq xolg A3 5 2 OLHV TLHV Circuit Diagram 2 2 This circuit consists of photo sensors and high voltage generation unit Note If the high voltage unit inside the OLHV TLHV circuit board is replaced the output voltage and current output from the terminals must be checked and adjusted This section does not describe the checking and adjustment methods however DANGER Do Not Touch HIGH VOLTAGE You may be subjected to high voltage electric shock by touching the following parts without an insulating material a High voltage unit b Contact ass y Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Board Descriptions A 47 OKIOFFICE 44 Serv Man P N 59276801 5 6 High voltage section 5 6 1 Functional overview The high voltage outputs consist of TR1 3 5 kV TR2 0 75 kV
23. Go to 7 1 9 Reception problem Y Replace R44 Board Signal route R CN10 A6 B621C12 1 RM TR1 2 IC11 1 IC11 3 IC5 5 Troubleshooting 7 24 OKIOFFICE 44 Service Manual P N 59276801 7 1 18 No Document Feeding Note This section places an emphasis on troubleshooting of mechanical portions Therefore it is recommended to replace the R44 Board first and then if not solved follow this flow chart Checking Points Load a document s No LCD works gt gt Check PC1 and the scan motor Yes i No dns ud P x EUN gt Firmly close the control panel unit closed firmly Yes Leading edge of a gt Stretch it out or use the carrier document s is curled sheet No SRI s Yes Make a copy of the document by eee ii DD noh m using an office copy machine S PATRE HORS then transmit the copy No Too many document s Yes 2 Reduce the number of documents gt 20 A4 on the feeder No 1 Make a copy of the document Yes Coated document s a by using an office copy machine then transmit the copy N 2 Use the carrier sheet o Remove them then clean the adhesive tape on the surface of the scanning route document transport route Are there bits of paper or Yes No Replace the roller ADF assembly sub roller and or the separation rub
24. 14 14 FAX Standby SELECT FUCTION OT MEMORY AVAIL 100 COPY COPY TECH PROGRAMMING YES 1 4 NO gt lt lt 1 LOCAL TEST YES NO 1 4 2 TECHNICAL FUCTION YES NO 1 4 FUNCTION NO amp ENTER 01 30 See Table 2 9 2 OKIOFFICE 44 Service Manual P N 59276801 Technical Functions 01 to 11 Table 2 9 2 1 5 T F Service bit SERVICE BI Setting Toggle X OFF ON Line monitor control TOR CONT ES NO Setting Toggle X OFF S ON Country code 03 COUNTRY CODI X YES NO Setting X INT L gt GBR gt Time and date print TIME DAT E PRINT 2 YES NO Setting X OFF gt ONCE gt gt ALL TSI print PRINT ES NO gt Setting Toggle X OFF ON TAD mode For external telephone answering device X OFF 2 TYPEI gt 5 TYPE2 07 TAD MODE gt X YES NO Setting Real time dialling gt Setting X OFF 2 TYPE gt 5 TYPE2 TEL FAX switching TEL FA
25. 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Transmit mode Automatic transmit mode Manual transmit mode Receive mode Automatic receive mode Manual receive mode TEL FAX automatic switchover mode TAD mode PC Mode Dual Access Not available for the OKIOFFICE 44 Voice request Automatic redial Last number redial Manual redial Local copy including multiple copies Maximum 50 copies of document Sender identification Sender ID Personal identification Personal ID Polling transmission Polling reception Acoustic line monitor Telephone handset option Automatic alternate selecting call FAX No FAX No can be registered in one touch keys Delayed transmission Maximum length of delay 3 days Delayed broadcast Delayed transmission 1 specified time Relay broadcast initiate Confidential message transmission Hopper 1 station Confidential message reception Not Available for the OKIOFFICE 44 PHOTO mode 16 scale gradations Dither Method General Information 1 4 OKIOFFICE 44 Service Manual P N 59276801 20 G3 sequential broadcast Memory Broadcast mode 56 stations at maximum Delayed broadcast mode 21 No paper no toner reception 22 Memory only reception Not available for the OKIOFFICE 44 23 Distinguishing Text from picture 24 Page re transmission Only in case of memory TX mode Retransmits in page units 25 Re
26. Transmission error report Confidential reception report Configuration report Telephone directory Power outage report General Information 1 6 OKIOFFICE 44 Service Manual P N 59276801 1 3 General Maintenance Functions 1 2 3 4 5 6 7 8 9 10 11 Self diagnosis CPU ROM RAM check FLASH MASK memory check Program Language Default RAM check RAM check MEMORY board option PC IF board parallel check Print test Sensor calibration Adjustment of scanning level LED test Tone send test Multi frequency MF send test High speed modem send test High speed modem receive test Tone TEL FAX test Remote diagnosis System reset Service default report Machine setting for service engineer General Information 1 7 OKIOFFICE 44 Service Manual P N 59276801 1 4 General Appearance Figure 1 4 1 shows the general appearance of the OKIOFFICE 44 Tray Paper Case OPE T Cover Front Stacker Document Optional FX048 CP4 1 Fig 01 Figure 1 4 1 General Appearance of OKIOFFICE44 General Information 1 8 OKIOFFICE 44 Service Manual P N 59276801 1 5 Basic Performance Specifications Table 1 5 1 shows basic performance specifications Note TF Technical function setting FP Function program setting OT One touch key pressed F SELECT FUNCTION key pressed Table 1 5 1 1 11 Basic Performance Specifications Item Specifications Applicable
27. Is toner low No x Does the paper meet O KI DATA specifications Yes Are there fingerprints or smud ges dirt on the paper No Is the lens surface of the LED print head dirty No Is the LED print head installed properly Yes Yes No T Yes Yes No oes the contact plate of the transfe roller make proper contact with the Power Supply Board Yes Supply toner Use paper that meets specifications Replace the paper Clean the lens gt Properly install the LED print head Make good contact Replace the transfer roller EP unit or Power Supply Unit Troubleshooting 7 4 OKIOFFICE 44 Service Manual P N 59276801 8 Smeared Background on Output The blank background is smeared Has the Image Drum been Close and wait for about exposed to external light 30 minutes No Yes Is the heat roller of the Clean it fuser unit dirty No Adjust the contact of the cleaning roller to contact the contact assembly properly Is the contact of the cleaning roller of the EP unit in contact with the contact assembly properly No Replace the EP unit or PWU HV Board R44 Board Troubleshooting OKIOFFICE 44 Service Manual P N 59276801
28. RMCS System G 18 OKIOFFICE 44 Service Manual P N 59276801 4 4 1 Confirmation lt REMOTE MANAGEMENT CENTER SYSTEM gt lt lt MESSAGE MODIFYING TOOL gt gt lt lt MESSAGE LOAD gt gt SOURCE A ED DESTINATION RMCS SYSTEM PLEASE INSERT A SAVED DISK THEN PRESS THE ENTER KEY TO LOAD PRESS THE ESC KEY TO CANCEL Select a drive with the Space key It is assumed that a message is loaded on the machine from the floppy disk you can select drive A or drive B When setup is ready insert a floppy disk which stores the message into the drive and press the Enter key Press Esc to terminate loading message and return to the main menu screen 4 5 Other Message File In addition to the scrn OOOO 1x file the following message files are available RMCS System RMCS SYSTEM err mess tx Error message text sc OOOO p tx Operator ID text Printing screen text FAX MODEL s 0000 p x online tx tx ON LINE text Scrnerr tx Error message text OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank RMCS System G 20 OKIOFFICE 44 Service Manual P N 59276801 Appendix H Product Service Bulletins H 1 General Information OKIDATA s Product Service Bulletins contain technical information obtained after product release Firmware updates part number changes and procedural changes are some of the subjects covered by these bulletins The Pro
29. To enable or disable the following functions Drum and toner counter display clear Service default report printing Protocol dump report printing Ring response time setting Dial parameters setting Printer counters clearing 2 Procedure Operations e To bring the LCD up to the desired message press SELECT FUNCTION key once COPY key twice and 2 key In case of no message in memory e Press lt key e Service bit setting is T F No 01 Enter 01 01 30 for OKIOFFICE44 The display shows 2 TECHNICAL FUNCTION YES NO 1 4 FUNCTION NO ENTER 01 30 l my 01 SERVICE BIT X YES NO 3 gt Setting Toggle X OFF S ON To 02 MONITOR CONT Reference See Figure 2 9 1 on the next page for the general operation flow Installation Procedure 2 30 OKIOFFICE 44 Service Manual P N 59276801 2 Technical functions e Press e Press e Press lt gt i Operations Press SELECT FUNCTION key Press COPY key twice key key key Enter two digit function number then the display will show the set item corresponding to the number entered If you want to set up all or several items starting with 01 then enter 01 Installation Procedure The display shows
30. Training time out of phase B control channel at transmission side In Confidential Reception the mail box specified by transmitter is not set up and open In closed Network setting TSI CSI is either not received or if received it is not authorized one Contents of CM JM are faulty at receive side Phase 2 time out at receive side Phase 3 time out at receive side Training time out of phase B control channel at receive side The number of continuous error lines have exceeded the specified limit The number of random error lines have exceeded the specified limit Memory Overflow has occurred while receiving in memory Memory Overflow occurred during Confidential Reception DECODER hardware error cannot reproduce picture Cleaning and Maintenance 6 28 OKIOFFICE 44 Serv Man P N 59276801 Service Code List Table 6 15 1 2 2 DECODER hardware error cannot detect end of picture There was no response each time in response to the three post commands Received signal other than the desired signal in responce to the post command Fall back in Phase C is not possible T5 time out Received negative signal in response to the post command Control chanel data Time out in Phase D Received signal other than the desired signal in response to RNR Command not received in response to RNR Data time out of Fall back in Phase C is not possible Broadcast completed DCN received in response to NSF DIS without sending a singl
31. difficult to remove Close the cover assembly top until the buttons have been locked completely Installation Procedure 2 9 OKIOFFICE 44 Service Manual P N 59276801 Hev 2 3 Recording paper Note About 100 sheets of the new paper can be set on the tray paper Loading the new paper Sheets must not exceed 100 sheets of the new paper on the tray paper If excessive sheets are set it will cause paper jams Tray paper N New paper face down 100 sheets FX048 C2 012 Figure 2 5 7 Recording Paper Cassette Installation 2 Installation Procedure 2 10 OKIOFFICE 44 Service Manual P N 59276801 Rev 2 4 Tray paper Tray document and Document stacker option e Hang the tray paper the tray document and the stacker document option onto hanging position Tray paper Tray document Cover top p Figure 2 5 1 7 Document Stacker Installation Stacker document FX048 C2 013 Installation Procedure 2 11 OKIOFFICE 44 Service Manual P N 59276801 Rev 2 2 6 AC Cord Connection The power supply is provided as follows Nominal input voltage 120V AC Voltage range 102 to 127V AC Nominal input voltage 230V AC Voltage range 198 to 250 V AC Check whether the AC voltage of your input is within the above mentioned voltage range Connect the female plug of the AC cord to the machine Insert the male plug of the AC cord to the inlet receptacle Check that the display shows Time message indicating t
32. A 40 OKIOFFICE 44 Serv Man P N 59276801 Toner supply roller 3 High voltage and medium voltage control High voltages are activated by IOGA and generated by the high voltage circuit inside the power supply unit The CH charge voltage of about 1 35kV is used for the charge roller The TR1 TR2 transfer voltage of about 3 5kV 0 75kV is used for the transfer roller Medium voltages are activated by IOGA and generated by the medium voltage circuit inside the power supply unit The SB1 SB2 toner supply voltage of about 0V 450V is used for the toner supply roller The DB1 DB2 developing voltage of about 300V 300V is used for the developing roller The CB cleaning voltage of about 400V is used for the cleaning roller Figure A3 1 17 shows high medium voltages control Signals used to control the high medium voltages are listed below Signal Name Description CHON 1 CH is output DBONI 1 ive polarity voltage of DB SB is output DBON2 ive polarity voltage of DB SB is output TRONI 1 ive polarity voltage of TR is output TRON2 ive polarity voltage of TR is output R44 TLHV OLHV Contaeassy IOGA Charge roller Developing roller CH High volt DBONI siete ies TRI TR2 Marie ud DBON2 circuit DBPWM TRIPWM CHPWM TR2PWM Medium voltage CB generation SWR Circuit DBI DB2 Transfer roller
33. DB1 300 V DB2 300 V SB2 450V CB 400 V and CH 1 35 kV and are obtained as follows The control signal obtained from IOGA of R44 board is applied to High voltage power supply circuit As result the driver current is applied to the drive circuit which will provide the high voltage outputs Note Signal Name Output Voltage Application SB1 SB2 0 5 V 450 V Voltage applied to toner supply roller DB1 DB2 300 V 300 V Voltage applied to developing roller TRI TR2 43 5 kV 0 75 kV Voltage applied to transfer roller CH 1 35 kV Voltage applied to charging roller CB 400 V Voltage applied to cleaning roller 5 6 2 SB2 DB1 DB2 and CB 1 These four high voltage outputs are obtained from the flyback voltage of Q10 2 The positive and negative voltages of DB1 and DB2 are obtained by switching the charg ing direction under the triac and thyristor 3 Feedback is not applied to these outputs However SB2 is limited by D85 and DB2 is limited by D84 so as not to provide an output exceeding a preset voltage 5 6 3 TRI and TR2 1 The TR1 high voltage is obtained by rectifying the secondary output of Q17 switching circuit by a voltage doubler rectifier 2 TRI output circuit has both constant current hereinafter called CC and constant voltage hereinafter called CV modes 3 At first TR1 output circuit operates in the CC mode Once the voltage determined by parameters such as roller a
34. Legal TX 215mm 216 mm 8 46 inches Local Copy 200 mm 8 5 inches 7 87 inches Note Local copy Printable reading width in local copy mode Automatic document feeder ADF Up to 297 mm 11 69 inches in length Maximum of 20 documents Letter or A4 20 1b Maximum of 15 documents Letter or A4 13 281b bond paper Documents shall be placed facedown on ADF stacker The first sheet will be fed first in the feeder and will exit facedown in the document stacker Document skew Max 2 6 mm 102 inches skew over a document of A4 length For a document longer than A4 length occurrence of skew exceeding 2 6 mm over any A4 length is 0 5 or less Document jam detection 1 Transmission will stop and line disconnection will occur when the end of a document is not detected within 356 mm 14 inches after scanning begins except for the long docu ment scanning Technical Function 11 A jam will also be declared if the document does not reach the scanning position within 10 seconds after the start of a document feed Note When a jam is detected during message transmission from the feeder the machine will stop scanning and disconnect the line but its receiving capability will remain valid Document jam removal Manual release General Information 1 10 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 3 11 Basic Performance Specifications Item Specifications Recording paper or sheet For best results
35. No 1 71 43 4 mm Yes period P Y Replace the transfer roller ee 2 46 62 5 mm Yes period Heater roller inside the fuser unit failure Replace the fuser unit 1 98 50 3 mm Yes period I eS Replace the Back up roller E Check the fax control side OKIOFFICE 44 Service Manual P N 59276801 12 Missing Print on Output Some parts not printed No Is the transfer roller dirty Clean it Yes Is the print paper folded Replace the paper bent or scratched x Yes No Y Check I D unit and Power Supply Unit Troubleshooting 7 46 OKIOFFICE 44 Service Manual P N 59276801 13 Vertical White Stripes on Output Troubleshooting White belts or streakes in the vertical direction Is the lens surface of the Yes Clean the lens LED print head dirty No Is the contact plate of the transfer No Make proper contact of the roller in contact with the contact contact plate with the contact assembly properly assembly Yes Replace the transfer roller Solved Yes No Is the LED print head installed V No properly Yes Replace the LED print head End Install the LED print head prolerly END Yes Solve
36. Press OT9 e Press key enter using the 1 FUNC PROGRAMMING ten key pad YES e NO 2 1 4 ejor 1 y FUNCTION NO ENTER 01 23 e Enter 11 using the ten key pad 11 entered Y Y 11 RING RESPONSE Setting X YES ec NO e Press gt key until the setting e X IRING gt 05SEC 10SEC you want is displayed then press L 20SEC lt 15SEC key Each ring response time of 5 10 15 or 20 sec is given by pressing 5 key Installation Procedure 2 54 OKIOFFICE 44 Service Manual P N 59276801 Dial Parameters Service Bit OFF To get the DIAL PARAMETER message on the display perform the operation in Table 2 9 6 Dial parameters settings Y 2 DIAL PARAMETER YES NO 2 1 4 lt Y REDIAL TRIES lt lt 2 TRY YES NO 25 Y 3 REDIAL NTERVAL 1 MIN YES NO gt Y DIAL TONE DETECT ON YES lt NO gt BUSY TONE DETECT ON YES NO O Jla B
37. Then dismount transfer roller two registration bearing and gear T Transfer roller Registration bearing CP4 1 Fig 24 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 18 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 10 High Voltage Power Supply Unit TLHV OLHV 1 Disassembly procedure Service Caution a First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and The High Voltage K Cover MAIN Power Supply PCB in the OKIOFFICE 44 is mounted vertically on b Remove the three screws 1 and draw out high the left side of the unit voltage power supply board TLHV OLHV with the land side fully exposed This board c Disconnect all the cables 3 and 4 from high voltage develops voltages of power supply board TLHV OLHV and dismount up to 1300 VDC as part high voltage power supply board of the normal printing process OKIDATA recommends that the unit be pow ered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to trouble shoot the unit with the Main Cover removed with AC power sup plied please take every caution to avoid touch ing the exposed cir cuitry of the High Volt age Power Supply Unit To do so accidentally can result in a shock hazard Screw 1 Caution Note the following when assembling the high voltage power supply board Mount the high voltage
38. 1 Items mage Drum ID Unit already installed e Toner cartridge Recording paper Tray paper Tray document and Document stacker 2 Procedure 1 Toner cartridge Peel off the fixed tape attached to the cover top Open the cover top Take the plastic cover out of the ID unit Cover Top FX048 C2 006 Figure 2 5 1 1 Toner Cartridge Installation 1 Take out the toner cartridge from the damp proof bag shake it five or six times as shown in the illustration to eliminate the toner deflection and peel off the seal gently Mold cover FX048 C2 007 Installation Procedure 2 7 OKIOFFICE 44 Service Manual P N 59276801 Rev 2 Ensure that the plastic tab on the right hand side of the toner cartridge recess lines up with the groove on the toner cartridge Seal Toner cartridge FX048 C2 008 Figure 2 5 1 3 Toner Cartridge Installation 3 Press down on both ends to make sure the cartridge is fully seated Push the gray tab forward until it stops Toner cartrige FX048 C2 009 Figure 2 5 1 4 Toner Cartridge Installation 4 Installation Procedure 2 8 OKIOFFICE 44 Service Manual P N 59276801 Toner cartrige Gray tab FX048 C2 010 Figure 2 5 1 5 Toner Cartridge Installation 5 Clean the toner scattered in the vicinity of the toner cartridge using a cloth moistened with cold water Do not use hot water Heat makes the toner adhere to surfaces and will make the toner more
39. 9 Blank Output Blank paper is output Is the LED head connected properly NV No Check connector CN14 on the R44 Board Yes Connect the LED print head properly Is the image drum unit set No Set the image drum unit properly properly Yes Replace the LED head Power Supply Unit or R44 Board Troubleshooting 7 43 OKIOFFICE 44 Service Manual P N 59276801 10 Vertical Black Stripes on Output Troubleshooting Black belts or stripes in the vertical direction Replace the EP Unit Solved E End Replace the LED print head or Power Supply Unit OKIOFFICE 44 Service Manual P N 59276801 11 Evenly Spaced Marks on Output Troubleshooting Periodic abnormal printing 1 44 36 6 mm period Developing roller inside drum unit failure Replace or clean the image drum unit Ne 1 98 50 3 mm period EP drum inside the image drum unit failure Replace the image drum unit No 2 63 66 8 mm period Toner supply roller inside drum unit failure Replace the image drum unit Charging roller inside the drum unit failure Replace the image drum unit No 0 81 20 6 mm Yes period No Yes 0 81 20 6 mm period Cleaning roller inside the drum unit failure Replace the image drum unit
40. B 6 Printime and Warm UP sesioen a UN wpe ea NA nd ien utn and pi asnapa sawa ayu B 7 EXPOSUTE P Y P B 8 dac aod RD cm B 8 Devel pifiehti M Orc B 9 o MP t aaa ma sS aan ua RU UNE OR TN DNE TN NN a B 10 jn A c peng renee ae UM B 11 CISanino umu e meer et PERE CMS pta d nena eene EE e UE B 11 Paper Feed Check PISC 2 hc cease B 12 B1 Paper Jami UU senres dade eco cede ota eeepc EEEE NAS B 12 Timing Chart for Paper Feed Wray Feed audisse tocco euet toque edsr seeiis B 13 Bra Toner ow D et ctlolp uius nuna ce ce aae eps ceed cae eee eed a D eeu ius B 14 DI NES udo sss e e E AE E E E EEE E EE A EESE B 16 Appendix C Circuit Diagrams Q J J C 1 C1 General Information C M C 1 Appendix D Illustrated Parts List D 1 Section 1 Cabinet Assembly I a ui aa ien seven EEE E Ea E D 2 Section 1 Cabinet Assembly 2 2 oomen ease cents aan aaa ean det i aaa ia Ee D 4 Section 2 Printer Unit Pen saa nama m D 6 Section 3 Operator Panel u a aaa ayka siasa sasa siasa pla D 8 Section 4 Operator Panel Assembly D 10 Section 5 Frame Assembly Scanner L Ju naa eco e ot ist ta ue Era es e Lap UE DIES D 12 Section 6 Plate Assembly Sc
41. Install CTR board a First install CTR board on to the connector CN11 CN12 of R44 board O 4 Screw 1 and then tighten the two screws to the separation plate Push fit the plate earth PC I F Board CTR PC Interface Note Insert the tip of a cutter or nipper between the mold of Cover Rear and cut it out Plate Earth y PC I F Installation Procedure 2 70 OKIOFFICE 44 Service Manual P N 59276801 Optional Telephone Set Installation 1 After having taken out the telephone set telephone handset and curled cord from the carton box connect them Fig C 3 2 2 After installing the connection cable to the telephone set extend the connection cable Fig C 3 3 3 Connect the terminal on the other side of the connection cable to the back of the unit to the telephone set Installation Procedure 2 71 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Installation Procedure 2 72 OKIOFFICE 44 Service Manual P N 59276801 winip oew eq jo uongjor gt jo uonsoriq Sutpoo Joded jo yed gt gt sutddoy 1odeq pooy 1edeq Suido oAop Iojsuei Suiueo Suisny pP f 1edeq Juononpoud oseuly Jo O1 Jo 01 poq SurddoH Io OI ISISOY IoJsuv1 lt oma Je o1 dn yorg Jo 01 Io 9H Y Y Y
42. Local date and time printing F050 C1 004 Note TSI printing TF 05 Local date and time printing TF 04 General Information 1 23 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank General Information 1 24 OKIOFFICE 44 Service Manual P N 59276801 Cancel Report Format Example POWER OUTAGE REPORT 05 19 96 17 05 ID OKI DATE TIME S R TIME DISTANT STATION ID MODE PAGES RESULT 05 17 0 10 0485 88 3385 9080 05 17 0 30 ODS TAKASAKI 03 0000 05 17 2205 01120 OKI FAX BOX 01 03 OK 0000 05 17 3 00 00 20 03 5476 4300 CALLED 01 OK 0000 05 17 5 40 034567092222 FWD T 05 05 18 0 50 01120 0495 22 5400 CALLED 03 OK 0000 05 18 5 00 B C 01 Note Memory reception only is printed on the mode in the report as called General Information 1 25 OKIOFFICE 44 Service Manual P N 59276801 4 TOTAL DATE 5 05 17 05 17 05 17 05 17 05 17 05 17 05 17 05 18 05 18 05 18 05 18 05 18 05 18 05 18 05 18 05 19 05 19 05 19 05 19 05 19 05 19 05 19 05 19 TIME e TIMI 6 00 10 30 05 00 40 00 10 22 50 05 00 30 05 04 00 20 35 150 103 00 00 04 OY OY O0 F O O Q wo O NHN OU GQ Nl CO CO O i GQ GQ N O CO GI General Information D Message Confirmation Report Format Example ACTIVITY REPORT CALLING 08 22 S R TIME 7 01 20 01 00 00 20 01 20 00 20 03125 00 00 02 00 00 12 01 20 00 20 01 30 00
43. No Step 2 Set HIGH SPEED MODEM RATE Technical function No 14 to 4800 bps Yes Solved No Step 3 Adjust equalizing level Technical function No 21 Yes Solved Step 4 No Set ECHO PROTECTION Technical function No 12 to ON Yes Solved Return to section 7 1 1 Troubleshooting 7 14 OKIOFFICE 44 Service Manual P N 59276801 I Test other fax machines under the same conditions especially concerning step 1 4 Does the fax machine No receive normally Yes Check the line and the network The hardware of the troubled fax machine may be damaged Go to 7 1 13 High speed Modem Test to localize the cause Note Even if the high speed modem test results in success 300 bps signal route remains unchecked In that case the most suspected unit is R44 board Troubleshooting 7 15 OKIOFFICE 44 Service Manual P N 59276801 7 1 10 Sensor Calibration Test Start Perform SENSOR CALI BRATION See 6 6 SCANNING ERROR appears on LCD while adjusting for level Checking Points No Abnormal feeding is observed during SCANNING CHECK End Troubleshooting Check that white plain bond paper of NA Letter size is loaded on the feeder No document feeding Go to 7 1 17 Multi
44. P N 59276801 LO89ZZ6S N d enue N 999S vv 39l34OIMO uonduoseq uonejedo uld Control signal LED head Power supply Paper delivery N Charge roller 7 Power Power supply Charging supply e eject Paper feeding Cleaning Development Developing Toner Toer roller roller cartridge Outlet sensor 4 Fusing lt Transfer Paper Paper T supply holder NN Paper sensor Manual feed section Heat roller Back up Power Transfer roller Feed roller Hopping roller supply roller Manual feed sensor Paper ejection Fusing Cleaning Transfer Development Paper feed Paper hopping T t lt OPC drum rotation direction d Paper feeding path Tg 90314 ure18eiq ss ooiq orqde13030gdodoo q B1 2 1 Operations Process Explanations Hopping As shown in the figure below the clutch for hopping is turned on off according to current ON OFF to a coil Spring tor resetting Hopping gear Clutch plate NS ew Coil IN Te r NA IER M C L f f M RAR VN Magnetic U substance plate i SIL u Ni f u NES HHE e WX Pin a Hopping shaft Hopping roller Engagement section When the c
45. The detailed procedures of the initial setting items will be explained on the following pages Note 1 S ON Effective if the service bit has been set to ON FP Function program setting TF Technical function setting Note 2 The fonts displayed on the LCD operation panel may differ from fonts written this manual Installation Procedure 2 18 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 1 7 Specifications Default Service bit Switching serviceman user operation ON Service personnel s features are available OFF Service personnel s features are not avail able To enable or disable the following functions Drum Total and toner counter clear Protocol dump Dial parameters etc Line monitor control To enable continuous monitoring of phone line for technical troubleshooting FP 06 To select the loudness of monitoring ON Enable OFF Disable Example In case of transmission mode the monitor will be available during dialling but the monitor will be switched off automatically after the elapse of specified time about 5 sec However when TF02 is set to ON the monitor is available during communi cation also Country code Selecting the following country code USA INT L GBR IRL NOR SWE FIN DEN GER HUN TCH POL SUI AUT BEL HOL FRE ESP ITA GRE AUS NZL SIN HNG Time and date print Enables or disables the function of printing local d
46. or 20PPS ps Y PULSE MAKE RATIO 7 Pulse make ratio 4407 ap 33 YES NO 3 great m gt 8 Pulse dial type PULSE DIAL TYPE N or 10 N or N41 N YES m Y MF TONE DURATIO 9 MF Tone duration 75MS YES e NO 2 75MS or 85MS or 100MS lt Y PBX LINE 10 PBX line OFF YES NO 2 OFF or ON FLASH EARTH NORMAL 11 Flash Earth Normal lt EU ar E ar INY F YES NO s s P Y 12 Auto start AUTO START te I lt OFF or ON OFF YES e NO gt BE 13 Dial prefix Ec ERRELE DIAL PREFIX La DIAL PREFIX will be included SPACE OFF YES NO gt JENTER 4DIGITS IN CASE of 4 SPACE 0 9 or SPACE y DIAL PREFIX 0 YES NO gt e 3 Installation Procedure 2 61 OKIOFFICE 44 Service Manual P N 59276801 Dial Parameters Settings Table 2 9 6 Item Specifications Default Redial tries Switches on the redial times to meet the regulations of the installed country O to 10 tries in one try steps 1 to 5 tries for FRE Redial interval Switches on the radial intervals to meet the regulations of instal
47. s L aper Size error Paper sensor OFF 15 77 400 56 mm P Heti Outlet sensor 0N 2 52 64 mm s L aper outlet Jam Outlet sensor OFF 15 77 400 56 mm Paper end sensor OFF Paper feed jam 2 Outlet sensor OFF La Unit mm Print Operation Description B 12 OKIOFFICE 44 Service Manual P N 59276801 Timing Chart for Paper Feed Tray Feed Pulse motor main Electromagnetic clutch Manual feed sensor Paper sensor Outlet sensor Normal rotation OFF Reverse rotation OFF ON OFF ON OFF ON OFF ON Operation mode Print Operation Description Warm up Paper feed Printing OKIOFFICE 44 Service Manual P N 59276801 B1 4 Toner Low Detection Hardware configuration of toner sensor The figure below shows the hardware configuration of the toner sensor Image drum unit Agitation bar iron Magnet Toner sensor lever Photointerrupter Hardware Configuration of Toner Sensor Toner detection method 1 Toner sensor monitoring conditions are shown in the figure below Toner sensor Magnet draw in t Caution The toner sensor is not monitored when the drum is inactive a When the toner low state continues twice Toner Low occurs This state is monitored at a cycle of 40 milliseconds b When the toner full state continues twice Toner Low is released This state is m
48. 00 00 00 00 00 00 00 PX 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RECEIVED CSI CIG TSI FF CO 02 OC OC 2C AC 04 4C 4C 04 AC 9C 2C OC 04 04 04 04 04 04 04 04 TRANSMITTED CSI CIG TSI FF C0 C2 2C CC 4C 8C 04 6C EC 2C AC 04 CC OC 04 04 04 04 04 04 04 04 Cleaning and Maintenance 6 22 OKIOFFICE 44 Serv Man P N 59276801 Data Analysis Figure 6 13 2 The printed out data permits to analyze G3 facsimile communication protocol signals between two facsimile machines Figure 6 13 2 shows the result of an analysis on the printed data referring to Figure 6 13 1 Protocol Data Dump TX RX Transmitter Receiver Dialling Ringing signal CED 04 02 01 C2 C4 Training 21 FD F4 DF Wt Preamble Cleaning and Maintenance 6 23 OKIOFFICE 44 Serv Man P N 59276801 Facsimile Control Field Conversion Table Table 6 14 1 shows all Facsimile Control Field FCF signals which are needed to analyze the printed out protocol dump data Some signals have two different hexadecimal codes in accordance with the calling party or called party Table 6 14 1 FCF Signals Conversion Table Abbreviation Description of functi
49. 1 Send receive a Class 1 command between Host PC and Fax machine Memory MFPL Multi Function Peripheral Language By using MFPL command it is possible to display on screen of Host PC for condition of Fax machine and performs the initial registration of the telephone number used in Fax machine A 61 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Board Descriptions A 62 OKIOFFICE 44 Serv Man P N 59276801 Appendix B Print Operation Description B1 1 Electrophotographic Processor The electrophotographic processor prints out the image data to be sent from the main control board on sheets of paper Figure B1 1 shows the layout drawing of the electrophotographic processor 1 Image drum unit The image drum unit makes a toner adhere to the formed electrostatic latent image with static electricity This electrostatic latent image is formed by the lights irradiated from LED heads 2 Electromagnetic clutch Theelectromagnetic clutch controls the rotation ofthe hopping roller according to signals from the control block Layout Drawing of Electrophotographic Processor Figure B1 1 Exit roller Heat roller 619 910 Charge roller 9 000 Cleaning roller Outlet sensor ES 69 000 85 LED head i E PERG on i AC 914000 roller S ore SK co Single tray Paper sensor O18 000 e Feed roller 9 Manual rintin HU ee lt Manual feed sensor Hopping roller 10 ON O
50. 1 Fig 08 Note Board NCU can be removed without removing the Cover Main 2 Reassembly procedure Reverse the disassembly procedures N PN Board NCU hj Screw 3 CP4 1 Fig 09 Disassembly 4 9 OKIOFFICE 44 Service Manual P N 59276801 Cable 2 4 1 3 3 Unit 048 OPE Panel 1 Disassembly procedure L OPE panel assembly a First carry out the disassembly procedure up to the point of the 4 1 3 2 Item e Cover main b Dismount the Printer Unit See Section 4 1 3 19 c Open the OPE panel assembly CP4 1 Fig 11 d OPE panel assembly Remove the OPE panel assembly by detaching the cable 1 removing the two screws 3 removing the eight screws 4 and detaching the fixing hooks Fixing hook Cable 1 CP4 1 Fig 12 Screw 4 e Remove the two screws and remove the LCD 2 Reassembly procedure Reverse the disassembly procedures CP4 1 Fig 13 Disassembly 4 10 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 4 Separation Rubber Sensor Frame Roller Assembly U 1 Disassembly procedure a b A Separation rubber The separation rubber can be removed from the N Frame Assembly Scanner U X Frame Assembly Scanner U Ae Roller Assembly Sensor CP4 1 Fig 15 Remove the Plate Support by removing the two screws 1 Note Just fitting to two bosses c d e f g 2 Reassembly procedure Gear Z31 Remo
51. 20 05 20 00 20 OL tr 00 20 02 23 00 20 00 00 00 24 03 25 03 30 2 05 19 96 17 05 CALLED 17 30 DISTANT STATION ID 8 OKI FAX 0485 88 3385 ODS TAKASAKI OKI FAX 03 5476 4300 ODS TAKASAKI OKI FAX OKI SHIBAURA 0495 22 5400 0495 22 5400 OKI FAX 03 5476 4300 03 5476 4300 ODS TAKASAKI OKI FAX 03 5476 4300 ODS TAKASAKI OKIFAX 1 26 12 0000 9080 90C1 0000 0000 0000 1 0000 2 908E 9080 9090 9080 0000 3 0000 60A0 4 9080 0000 9080 0000 1 0000 9080 0000 5 0000 6 0000 7 3 ID OKI MODE PAGES RESULT 9 10 11 CALLING 02 OK CALLING 00 STOP CALLING 00 NO CALLING 03 OK CALLING 01 OK BOX 01 03 OK 01 OK CALLED 05 NO CALLING 00 STOP CALLED 03 NO CALLING 01 STOP CALLED 03 OK CALLING 01 OK BiG COMP CALLING 00 STOP CALLING 02 OK CALLING 02 STOP BOX 01 02 OK CALLED 01 OK CALLING 00 STOP 01 NO FWD R 03 OK FWD T 03 OK 1 Confidential reception 2 Manual TX 3 Memory reception 4 Broadcast TX 5 Manual reception 6 Reception for forwarding 7 Forwarding OKIOFFICE 44 Service Manual P N 59276801 1 Title of the report 2 Date and time when the report was printed 3 SenderID 4 Total CALLING and CALLED time 5 Date of transmission or reception 6 Time when the communication started 7 Time span of the fax communication 8 Identification of the remote station Personal ID Location ID TSI CSI Dial number or space 9 Com
52. 6 22 3 flow chart 8 to 15 Troubleshooting LCD displ Category CD message display Trouble flow chart number Cover open ida FAX The cover cover top is open 1 COVER OPEN Image drum 14 14 FAX Warning message to replace EP unit 2 alarm CHANGE DRUM because of its life PRINTERSALARNM ATEL Engine controller error 3 PLEASE CONFIRM Engine errors PRINTER ALARM eL TEL Fuser unit thermal error 4 PLEASE CONFIRM Recording paper PAPER OUT JA FAX Recording paper feed jam transport jam 5 jam error REPLACE PAPER ejection jam recording size error Paper cassette PAPER OUT JAM FAX No recording paper tray or no 6 request REPLACE PAPER recording paper TONER LOW FAX Toner is running short REPLACE TONER CART Note No toner memory RX is ON Daily status 14 14 FAX Toner is running short REPLACE TONER CART Note No toner memory RX is OFF Troubleshooting 7 32 OKIOFFICE 44 Service Manual P N 59276801 1 Top Cover is Open Cover Cover Top is open COVER OPEN Close the cover Yes Solved No Is the cover open switch Yes Correctly position the out of position cover open switch No Y Retum to section T See ACTION 2 Troubleshooting 7 33 OKIOFFICE 44 Service Manual P N 59276801 2 Replace Image Drum Message Warning message to replace ID unit because of its life CHANGE DRUM Disconnect AC power cor
53. ASEN I eRe eR SERS S SH T JISVN p VOOI I EDDY JAIL Add 19juq IN NON lt e 1 Surpoooq m SINO jespued 00H 8X GA CIS SaJAq 0r9 1opng E E So eu _ MS solvuv cx INVUG XH LSO Tp 90 uondo ILC NON END sdq yl uis UINVA pages I pray dal Doo TAL MIND WAGOW qoc VNG I IZ EVDO 1 0VLVGH FINO uod O I ZH189 Z Aud Le W MtO Ba 801 uoneiouss SO In x m IN3 JOJOW S ZHWEIGP EG EX O1U0S vp8cI omnuoo ejep ssappy IM LT COd 10d 10d Bk ZHI 07 Ionuoo ouai CMT dO ado ASt ans I pt X r3 ud Suruueog END UruJ sjop 9 HE EO iawans x OES YI VOOL kY qy lt 10suos AIC T TI gt Nd p E DIS O YN V nd SV LVGS ol 0V L VOS as SNI 92EUI p V e TUNO ee ER vvu E UINO AUNT Someta soa d FrSCV Do Tx 8 H TIS Zen IADA U gdO qows o aud ECHELLE Ng sve NR ETE ERE uondo WAW dIOd ALD OKIOFFICE 44 Serv Man P N 59276801 A 17 Board Descriptions Report Printing This signal route describes the printing route of character data used to print Activity Report Message Confir mation Report etc The report data is read into DRAM in the sequence the contents of data stored in the FLASH memory in advance under the control of CPU The contents of data is edited on the DRAM The data is read out from the DRAM and sent to IOGA The data is converted into a serial data by the picture control of IOGA and trans ferred to the LED print head fo
54. BY EXAMPLE Y YE LOCAL MACHINE COVER OPEN y NO RESULT OK ABOUT 1 SEC gt lt 14 14 FAX Installation Procedure lt STANDBY FX050VP C2 022 2 67 OKIOFFICE 44 Service Manual P N 592762n1 2 9 12 Installation of Optional Units Items Memory board PC interface board Telephone handset Procedure Note Unplug the AC power cord from the wall outlet first and then from the facsimile Detach the AC power cord to power OFF the unit Do not remove unnecessary parts Since screws and small parts are likely to be lost they should temporarily be attached to their original positions Installation Procedure 2 68 OKIOFFICE 44 Service Manual P N 59276801 Memory Board Installation n the OKIOFFICE 44 the MEM memory board is mounted on to the connector CN13 of R44 board Installation Remove Cover rear Remove the Cover rear by removing the screw 1 Fixing hook Remove PC Interface CTR PCB if installed Install Memory Board First install the memory board on to the connector CN13 of R44 board and then tighten the two screws to the separation plate Then re install the CTR PCB if used Board Memory Installation Procedure 2 69 OKIOFFICE 44 Service Manual P N 59276801 CTR PC interface Board Installation 1 Remove Cover rear Remove the Cover rear by removing the screw 1 2a o gt Cc Er 9g n hook
55. Back Up Roller 51609201 RSPL 3PB4083 1160P2 Roller Pressure B Back Up Roller 53348502 RSPL 3PP4083 1233P1 Guide Paper R 51021901 RSPL 3PP4083 1232P1 Guide Paper L 51021801 RSPL 1PP4083 1231P1 Holder Paper 50708901 RSPL 3PP4083 1192P1 Sensor Paper Exit 50410701 RSPL 4PP4083 1247P1 Spring Hopping L Ljl j2Lil im i 50931101 RSPL 4PP4083 1137P1 Spring Bias R Back Up Roller 50930901 1PP4083 1241P1 Guide Sheet 51021601 1YX4083 1200G1 Fuser Assy 120 V 56802601 1YX4083 120062 Fuser Assy 230 V 56802602 40034001 Stopper Spring 4PB4091 6047P1 Caution Label TR 230V Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 12 Cables OKIOFFICE 44 Service Manual P N 59276801 Illustrated Parts List Section 12 Table Cables z e Oki parts Number Description OKIDATA P N 40048101 Connection Cord Wire AC 40048101 RSPL 40040001 Connection Cord Wire OPE 40040001 RSPL 40040201 40040201 RSPL 40040301 Connection Cord Wire CIS Connection Cord Wire PC1 2 40040301 RSPL 105410700003 TFC 20 10 10 Core 105410700004 TFC 23 11 14 Core 105410734002 SSC 40 12 M Core 105107060001 TFC 16813 Core O OINID Oo HR oyrm
56. Description 3 4 OKIOFFICE 44 Service Manual P N 59276801 3 2 Actual Electrophotographic Process The electrophotographic process of the unit consists of six essential processes The following Figure 3 2 1 provides a general description 2 LED head 1 Charge roller m Electro photographic drum Toner 6 Cleaning roller 5 Heater roller 3 Developing roller Recording paper 4 Transfer roller Process Charging Exposure Developing Transfer Fusing Cleaning No gt Q N P Figure 3 2 1 Actual EP Process Brief Technical Description 3 5 OKIOFFICE 44 Service Manual P N 59276801 3 3 Boards and Units The following five boards Main control board Memory board option Telephone interface board option PC interface board option and three units constitute the OKIOFFICEAA facsimile transceiver machine e Main control board MCNT R44 e Network control unit board NCU UNC Memory board option MEM MEM IMB Telephone interface board option TEL TEL U HOOK PC interface board option Bi Centro I F CTR Operation panel assembly unit OPE O4W Power supply unit POW UNIT TLHV or OLHV 048 POW 120V 230V Printer unit Figure 3 3 1 shows the related drawing of OKIOFFICE44 facsimile transceiver Brief Technical Description 3 6 OKIOFFICE 44 Service Manual P N 59276801 Block Diagram Figure 3 3 1 CIHSIVHdS INO AH IO AHTL W
57. Eig 2 9 0 as unun uu s ku Qhana asas ah DR iE MS 2 67 2 0 12 Installation or Optional Unis soo aaa eaa Caleta 2 68 Hems er 2 68 Procedure MP TUNE 2 68 Memory Board Install i sis sa n au nieis 2 69 CTR PC interface Board Installation 2 70 Optional Telephone Set Installation pct spera etse t pU du si Uno 2 71 Table of Contents TOC 2 OKIOFFICE 44 Service Manual P N 59276801 Section 3 Brief Technical Description 3 1 Electrophotogtaphic Process PLOW uu l ua eto dese purae qadalaycaqqaqaasqaqpanauqan qaqaaywa ayasa uda 3 1 3 1 Fundamentals of the Electro Photographic Process iuueni teet pene t Rocio atte caer 3 2 3 2 Actual Blectrophot ograpiic Dec ss cde spuepatinesmutt neret deep tueur mede pti ae EAE put 3 5 3 3 Poards and UMS esae E aS au asha TES 3 6 Block Diagram Burns de l C 3 7 3 4 Overall Dimension and Mechanical Structure sou ossi duci La tx apices daaes punta g et adrian pape ve uer uds 3 8 Section 4 Disassembly etae cuu no eee eR Rma race nnn nam u J J 4 1 4 1 General oso muna M P Pn 4 1 4 1 1 Precautions for Parts Replae mient_ uu aa genet deines agsu diis 4 1 Serviced aun asocio ERREUR MUN E NM M sassa ass 4 2 L5 ME Gee COPS
58. F OT Press FUNCTION and One touch key FP Function program setting TF Technical function setting Table 1 6 1 1 2 Reports and Lists Specifications Specifications Call back message The transmitter sends a call back message to the receiver only when the receiver does not respond to voice request of the transmit ter Sender ID The fax can transmit a programmed alphanumeric message suchas company s name consisting of up to 32 characters This is an FCC Requirement in the United States Outside only Transmitting subscriber identifica Received TSI can be printed at the top of the received page tion TSI printing TF 05 To enable or disable this function Cancel report The fax can automatically print out a power outage report when the Power outage report power off condition occurs Activity report The fax can print out an activity report manually or automatically when 30 communications are recorded REPORT PRINTOUT 1 Manual printout Message confirmation report The fax can print out a message confirmation report manually or automatically in the following cases 1 When COPY key is pressed after a single location call this report can be printed Manual printout FP 01 To enable or disable automatic printing Broadcast entry report The fax can print out a broadcast entry report if specified during operating sequence of a broadcast Broadcast confirmation report The fax can print out a broadcast confirmati
59. IC2 CML A3 DP B3 SR A2 IOGA p Relay driver circuit MUTE Al PBXE B1 B2 OH2 A15 OPE c M lt Hook up signal detection circuit E CPU RI A14 to OPE lt Ringing signal detection circuit Figure A3 1 8 Interface between R44 Board and NCU Board R44 OPE 04W KSCAN0 X tal t KSCAN7 CN4 CNI ICI K itch ey switc matrix TXDOPE 1 TXD CPU lt a a N lt RXDOPE 2 RXD lt MOS CPU KSENS0 PSMODE gt 3 PSMODE gt to Internal ROM DB0 KSENS7 OPRST N 4 IRST to IC2 DB7 OPECHK 5 OPECHK lt _ LCD unit IOGA 67 45V me V ate Control signals 89 C D e amp GND OV Eight LEDs PCI N gt 14 gt RIINT P i5 LEDs HUP N gt Figure A3 1 9 Interface between R44 Board and OPE operation unit Board Descriptions A 31 OKIOFFICE 44 Serv Man P N 59276801 AI CI PC2 to OPE CN7 1 gt PCI N 2 3 CPU 4 PC2 N 5 6 PCIV 45 V to OPE PCIG 0 V PC2V 45 V PC2G 0 V Board Descriptions Note PCI presence of document on hopper PC2 presence of document at scanning position Figure A3 1
60. Legal A4 size Recommended paper 9 Printable width For OKIOFFICE44 North American 203 2 mm 8inches 203 2 mm 8 inches for assured quality North American Legal 203 2 mm 8 inches 203 2 mm 8 inches for assured quality ISO A4 203 2mm 8inches 197 3 mm 7 77 inches for assured quality 10 Printable length NA Letter 273 4 mm 10 76 inches 266 7 mm 10 49 inches for assured quality NA Legal 349 6 mm 13 76 inches 342 9 mm 13 49 inches for assured quality ISO A4 29 mm 11 46 inches 284 3 mm 11 19 inches for assured quality General Information 1 1 OKIOFFICE 44 Service Manual P N 59276801 11 Copy stacker Maximum 30 sheets 20 Ib bond Recommended paper 12 Scanning resolution a Horizontal 8 pels mm b Vertical Transmission mode STD 3 85 line mm FINE 7 7 line mm EX FINE 15 4 line mm COPY mode FINE 7 7 line lmm EX FINE 15 4 line mm 13 Scanning method 1728 bits contact image sensor 14 Recording resolution a Horizontal 300 dots inch b Vertical Variable Automatically adjusted to the paper length STD mode 3 85 to 5 06 line mm FINE mode 7 7 to 10 13 line mm Fixed STD mode 3 85 line mm FINE mode 7 7 line mm EX FINE mode 15 4 line mm 300 dot inch 15 Recording method 211 3 mm 2496 bit or 216 7 mm 2560 bit 16 Minimum scan line time for reception When receiving from OKIFAX or ECM 0 ms e When receiving from non OKIFAX and n
61. SCRN3070 TX SCRN4070 TX SCRN5070 TX SCRN1080 TX SCRN2080 TX SCRN3080 TX SCRNA4080 TX SCRNS5080 TX SCRN1090 TX SCRN2090 TX SCRN3090 TX SCRN4090 TX SCRN5090 TX PAGE UP PREVIOUS PAGE PAGE DOWN NEXT PAGE PLEASE SELECT THE MESSAGE FILE PRESS THE ESC KEY TO CANCEL Select the message title to modify Select the position with 1 W lt and keys and press the Enter key then the position is selected Press Page Up or Page Down to scroll the screen back to the previous page or up to the next page Press Esc to terminate the title selection and return to the FAX model selection screen 4 3 Saving Message Model Selection Select MESSAGE SAVE on the menu screen then the following screen is displayed REMOTE MANAGEMENT CENTER SYSTEM lt lt MESSAGE MODIFYING TOOL gt gt SAGE MODIFY gt gt 1 1 RMCS SYSTEM FAX MODELO FAX MODELI FAX MODEL2 FAX MODEL3 FAX MODEL4 FAX MODELS FAX MODEL6 FAX MODEL7 FAX MODELS FAX MODEL9 o0 1 O ta RUNE OV NO PAGE UP PREVIOUS PAGE PAGE DOWN NEXT PAGE PLEASE SELECT THE FAX MODEL PRESS THE ESC KEY TO CANCEL Enter the key number indicated on the left side of the model with messages to store Press Page Up or Page Down to scroll the screen back to the previous page or up to the next page Press Esc to terminate the FAX model selection and return to the menu screen RMCS Syste
62. a broadcast confirmation report FP 02 To enable or disable this printout The fax can automatically transmit documents at one specified time for OKIOFFICE 44 Document s placed on the feeder can be collected by a remote station The fax can collect documents from one remote station An operator can prepare documents for transmission even while the fax is engaged in message reception They will be automatically transmitted upon completion of the reception An operator can also prepare documents for transmission during transmission from memory The fax can temporarily store received messages in memory when toner has run out The messages are printed when toner has been newly supplied or an operator presses the SELECT FUNCTION key followed by the one touch key No 10 under the LCD message MSG INMEMORY REPLACE TONER CART in the standby mode TF 06 To enable or disable this function The documents received in the STD mode can be printed at the FINE resolution by means of generating one line based on the two consecutive original lines and printing it between them 2 40 OKIOFFICE 44 Service Manual P N 59276801 One Touch Key Program Settings Flowchart Note POWER ON SELECT FUNCTION MEMORY AVAIL 100 Power on while holding COPY key down 2 The fonts displayed on the LCD operation panel may differ from fonts written this manual TECH PROGRAMMING YES c 1 4 NO gt
63. and Spanish French Portuguese Incoming ring Instead of ringer circuit software can control built in speaker to ring sound To enable ON or disable OFF or distinctive ring DRC a software generated ring sound to indicate arrival of an incoming bell Remote receive This function is used to transfer the call received by external telephone connected to fax by entering preset This function also used for two digits TAD Mode The following combinations are selectable 00 1 1 22 33 44 55 66 77 88 99 OFF selectable Switches the transmission mode between the memory and feeder Memory and feeder switch MEM TX FEEDER TX selectable FEEDER TX Note Memory or feeder setting can register as the default by operating the F OT 2 Not Used ECM function Enables or disables ECM error correction mode com munication ON Enables OFF Disables Remote diagnosis Enables or disables the remote diagnosis function when the machine can allow remote diagnosis from remote center ON Enables OFF Disables Installation Procedure 2 48 OKIOFFICE 44 Service Manual P N 59276801 User Function Program Settings Table 2 9 4 4 4 Specifications Default PC FAX switch When the host side does not respond at the time of incoming call to PC specifies whether to starts forc ibly as fax reception or not ON Enables OFF Disables Note When the Bi Centro board is installed on the fax PC FAX switching mode a
64. aswawwasuuwuaasunuwaasussasuauwaauuusnaupunaaunusaq AXOd 8T0 LTINI OV uondo WAN uondo XLO OKIOFFICE 44 Service Manual P N 59276801 Brief Technical Description 3 4 Overall Dimension and Mechanical Structure HVPS board NCU board MPSU board CTR board option CNT board Memory board option Separation rubber Scanner block Roller ADF OPE board Paper exit Roller Scan Document exit Manual paper feeder inlet Image sensor Printer block Roller Hopping Figure 3 4 1 Overall Dimension and Mechanical Structure Brief Technical Description 3 8 OKIOFFICE 44 Service Manual P N 59276801 Section 4 Disassembly This chapter explains the procedures for replacement of assemblies and units in the field 4 1 General 4 1 1 Precautions for Parts Replacement 1 2 3 4 5 6 7 8 a b Disassembly Before starting disassembly and reassembly always pull out the AC plug Note Unplug the AC power cord from the wall outlet first and then from the facsimile Do not try to disassemble as long as the facsimile is operating normally Do not remove unnecessary parts Try to keep disassembly to a minimum When disassembling follow the prescribed sequence Otherwise parts may be damaged Since screws and small parts are likely to be lost they should temporarily be attached to their original positions When handling items
65. cleared 2 Procedure The following example shows the menu flow when the service bit has been set ON Operations The display shows e To begin press the SELECT FUNCTION key once and SELECT FUNCTION OT one touch key No 7 in the standby mode MEMORY AVAIL 100 with no message in the memory Press OT e Press lt key or gt key DRUM COUNT XXXXXX CLEAR NEXT 9 lt Key Key TONER COUNT XXXXXX CLEAR NEXT 9 lt Key B Key lt lt DRUM T COUNT XXXXXX CLEAR NEXT 9 lt Key Key l PRINT COUNT XXXXXX CLEAR NEXT 9 NOTE lt Key r Key lt Drum T Count is used to display the total in use life of the machine SCAN COUNT XXXXXX This counter cannot be cleared CLEAR NEXT gt lt Key Key CLEAR After more than 3 sec Cleaning and Maintenance 6 7 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Cleaning and Maintenance 6 8 OKIOFFICE 44 Serv Man P N 59276801 6 5 Self Diagnosis Test 1 Purpose To check ROMs RAMs and printing function 2 Procedure Operations The display shows e To begin press SELECT FUNCTION key once TECH PROGRAMMING and COPY key twice in the standby mode With no YES 1 4 NO gt message in the memory 1 LOCAL TEST e
66. ee I 1 OKIDATA Web Site eter cte teet eet E ee toe e e bete deed e eee de ea dece e quee E cea Eden detener asqa I 1 Faxable Eats etre test ee teet ette t e stuceted staceved EE eet es td Cesta edd eec ee eet buenos Ud I 1 OIRIEINK IE conten Dn mQ uqu tite dien etes dU Em elu TP rU Ed I 1 Table of Contents TOC 9 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Table of Contents TOC 10 OKIOFFICE 44 Service Manual P N 59276801 Section 1 General Information 1 1 General Performance 1 2 3 4 5 6 7 8 Type of appearance Desktop type Applicable lines Public switched telephone network PSTN Private branch exchange PBX Compatibility TU T Group 3 facsimile transceiver Document width Max 216 mm 8 5 inches North American Letter Min 148 mm 5 83 inches ISO A5 size Effective reading width Max 215 mm 8 46 inches Scanning length 28 mm to 356 mm 5 06 inches to 14 inches Length setting Infinite is also available Automatic document feeder ADF 20 sheets for OKIOFFICE44 North American Letter A4 size 20 1b bond 15 sheets North American Letter A4 size 13 to 28 1b bond Recording paper or sheet First tray North American Letter Legal A4 size plain paper cut OKIOFFICE 44 100 sheets capacity 20 1b bond Manual loading feeder Transparency for overhead projector applicable OKIOFFICE 44 Sheet size Letter
67. from the transmitter is available only upon completion of the total message transmission A voice request from the receiver is available at the end of each page being received Local copy Printing resolution Horizontal 300 dpi Vertical 7 7 or 15 4 line mm or variable Multiple local copy Up to 50 copies Manual loading feeder One single sheet from the feeder above the first recording paper cassette can be copied Example of sheets Transparency for an overhead projector Installation Procedure 2 39 OKIOFFICE 44 Service Manual P N 59276801 Feature Specifications Table 2 9 3 3 3 Item Specifications Broadcast Memory transmission Delayed transmission from the memory Polling transmission To be polled Polling reception Transmission preparation Hopper No toner reception Smooth printing Not Used Installation Procedure A maximum of 56 remote locations can be specified by the following means One touch keys with of without a group list Two digit auto dial codes keypad dial number One delayed time of calling for this feature can be specified unless any other delayed calling feature has been specified One delayed broadcast and one immediate calling of broadcast is possible with the OKIOFFICE 44 When multiple locations are specified for one broadcast 1 The OKIOFFICE 44 prints a broadcast entry report if speci fied in operating sequence 2 TheOKIOFFICE 44 can print
68. is used as an interface board of PC and FAX when PC is connected to facsimile machine 1 Block diagram CTR board circuit is formed by Receiver Driver and 1284 I F Figure A3 12 1 shows related signals of CTR board R44 17 CTR option BACKI CN2 ADO to AD7 Driver n CPU RD N WRL N CASL N CLK Receiver BREOO d m IC2 BREOI YY Y v y Y PSBN p VEROP CNI FLT N SELP ACK N Host PC BSYP IOGA IPRN Y v Y Y Y AFXN SLIN BACKO 1284 I F PDO to PD7 CN3 ADS to ADI5 baba Figure A3 12 1 Related Signals of P050 PC interface unit Board Descriptions A 59 OKIOFFICE 44 Serv Man P N 59276801 2 Function 2 1 Summary By installing the optional board Bi Centro the following MFP Multi Function Peripheral function can be realized Example OKIOFFICE 44 PC printer function 300 0600 dpi 4 PPM 8PPM Target PC Scanner function 8 dot mm 8 dot mm INT L 300 dpi ODA PC Fax Modem function TIA EIA Class 1 PC Memory function PC Multiplex function Disable Enable Interface between Fax machine and Host PC consists of three layer structure as detailed below each sub system can be operated at the same time by adopting a Oki MFPI protocol in both Fax machine and Host PC N
69. number deleted is correct enter Y The program corresponding to the model number is now deleted If not correct enter N Then repeat from step 1 again RMCS System G 9 OKIOFFICE 44 Service Manual P N 59276801 2 2 4 Updating the Password 1 Search the directory in which the system is registered When the system is found the old password is displayed on the screen requesting entry of a new password is displayed Remote Management Center System PASSWORD UPDATE OLD PASSWORD 1234567890 NEW PASSWORD _ Press the Esc key to cancel 2 Register a new password of up to 15 alphanumeric characters excluding Press Enter to display the confirmation screen Remote Management Center System lt lt PASSWORD UPDATE gt gt OLD PASSWORD 1234567890 NEW PASSWORD ABCDEFGH Are you sure Y or N Y Press the Esc key to cancel 3 When the setting is correct enter Y The password is now updated If not correct enter N Then repeat from step 1 again If the system operator does not define the PASSWORD PASSWORD is not checked when RMCS starting RMCS System G 10 OKIOFFICE 44 Service Manual P N 59276801 2 2 5 Updating the Dip Switches This setting is available for only RMCS Model 10 1 Search the directory in which the system is registered When the system is found the dip switch setting is displayed Remote Management Center System lt lt DIP SW UPDATE gt gt DIP SW
70. of telephone number for cover letter alphabetic numeric and symbolic in 20 digits 5 Not Used 6 Not Used Print operation 1 Substitutive message print Used to print messages stored in memory during toner low condi tion Also used to print messages received in memory when RX Mode is set to MEM RX The messages are printed when toner has been newly supplied or an operator performs the substitutive operation When memory reception data exists in the memory and the MEMORY RX MODE is indicated by AUTO REC key operation for OKIOFFICE 44 machine will print out the memory reception data 2 Not Used 3 Printer cleaning When print quality becomes questionable this drum cleaning function removes the residual toner on the image drum The residual toner is removed by printing This operation should be performed before any hardware replace ments are considered Installation Procedure 2 45 OKIOFFICE 44 Service Manual P N 59276801 Function Program User Function Program Settings Table 2 9 4 1 4 Item Specifications Message confirmation report Enables or disables the automatic message confirma Single location tion report printing after a single location call ON Printing the MCF report OFF Disables this function Message confirmation report Enables or disables the automatic message confirma Multiple locations tion report printing after a multiple polling or broad cast ON Prints the MCF report OF
71. power supply board with Cover top assembly removed or open Take care that cable 3 will not interfere with the paper sensor exit when it is connected 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 19 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 11 Holder Assembly 1 Disassembly procedure a First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN b Dismount the Bracket Package c Dismount the Holder Paper d Unlock and dismount the Guide Paper L and Guide Paper R e Remove the claw and dismount Spring Holder f Remove the claw and dismount Spring Stopper Guide Paper R Jf Spring Holder y Spring Stopper Guide Paper L Holder Paper Bracket Package 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 20 OKIOFFICE 44 Service Manual P N 59276801 Hev 2 4 1 3 12 Plate Side M and Gear Idle 1 Disassembly procedure a b c Perform parts replacement while making the base frame assembly stand so that Plate Side M will face upward First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN Remove two screws 1 and two claws then dismount Plate Side M Dismount Plate Earth two idle gears P idle gear M idle gear 3R idle gear 2R idle gear heat idle gear R and gear R 2 Reassembly procedure Disassemb
72. this circuits detects MF or CNG tones without seizuring a line it sets a proper receiving sensitivity DP RL3 This circuit generates pulse dials If the circuit detects MF or CNG tones without seizuring a line it opens to increase the imped ance Pickup RC R5 C31 These circuits insert a high impedance resistor and capacitor serially to prevent the line imped ance from dropping by the line transformer T1 Ring detectors IC1 These circuits detect a ring signal arriving to the line If the input ring signal exceeds a specific voltage the circuits output a signal having of RI the same frequency as incoming RI Line transformer T1 This circuit processes send receive signals required for facsimile transmission dial tone receive signals required for automatic dialing and MF tone send and remote receive signals It sepa rates between the line and equipment in terms of DC and also keeps a balance between the line and the ground The transformer on the UNC board for OKIFAX 5600 is covered with the shield case for the low level receiving countermeasure Off hook detector IC2 This circuit detects the off hook state of the telephone connected to the TEL1 TEL2 through LINE terminals A 52 OKIOFFICE 44 Serv Man P N 59276801 suonduose pieog V eG LO89Z26S N d UEN M S vr 30IJ3JOIMO VAS VAS TEL1 TEL2 LINE CN3
73. use Okidata recommended papers Xerox 4200 20 Ib base weight paper Paper approved for xerographic copier laser printing process Automatic Feed 1 Type Plain paper cut Bond paper 2 Size A4 210 x 297 millimeters 8 27 x 11 69 inches Letter 215 9 x 279 4 millimeters 8 5 x 11 inches Legal 215 9 x 355 6 millimeters 8 5 x 14 inches 3 Weight 16 lbs to 24 Ibs base weight Base weight is defined as the weight of 500 sheets of 431 8 mm 17 inch by 558 8 mm 22 inch 4 Thickness 0 08 mm to 0 12 mm 0031 inches to 0047 inches 5 Condition New paper Manual Feed Note One single sheet only should be loaded on the manual loading feeder for any one occasion 1 Type Plain paper transparency for overhead projector colored paper printed paper Must meet specifications for xerographic printing process A4 210 x 297 millimeters 8 27 x 11 69 inches Letter 215 9 x 279 4 millimeters 8 5 x 11 inches Legal 215 9 x 355 6 millimeters 8 5 x 14 inches 3 Weight 16 lbs to 24 Ibs base weight Base weight is defined as the weight of 500 sheets of 431 8 mm 17 inch by 558 8 mm 22 inch 4 Thickness 0 08 mm to 0 12 mm 0031 inches to 0047 inches Recording paper cassette 100 sheets tray 20 Ib General Information 1 11 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 4 11 Basic Performance Specifications Item Specifications Effective recording area PL Page Length PW z Page Width EL Effectiv
74. vd IZ VDOI L 0V LVdH FINO peoy AHTI uod oy ZH IS9L CE Aud Le a uoneiaues 9 X Lv x Ino lO OUI S Tea X jonuos 8ZI snq 7X ZHWZI6F6Z X lonuoo T m DLA I2d zoa Toa tod ejouduoq TE I Ol oue lt 6 ans t m x XH 3 NO ms tI vDOI E EOLHS NE utut s1op 8 D Aa asns an wl v501 kY aiv e 1osuos a NO V OV evivasaovivas hs joo oseull py c LIC emo EI ma i LLL A I SCI CX 8X TA ZIS D o FPA T A19994 o youms LIJ PAU aN D INV3S d s REIFERT uondo WAN a dIOd ALO Memory Transmission This signal route describes the memory transmission used in broadcast mode delayed broadcast mode etc The stored encoded data undergoes buffering passes through CPU MODEM and NCU and then sent out to the telephone line Memory Reception This signal route describes the memory reception used in no paper mode no toner reception confidential mode etc The encoded data received by the same route of 3 G3 receive mode undergoes the picture data processing and stored into memory DRAM as such In case of printing When the data for one page has been stored in the memory DRAM the data is read out from the memory and sent to IOGA The printed data is converted into a serial data by the printer control of IOGA and transferred to the LED print head for printing as HDATA 0 1 Board Descriptions A 20 OKIOFFICE 44 Serv Man P N 59276801 A3 1 R44 Circuit Diagram A3 1 1 R44 Circ
75. volt ages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Adjustments 5 5 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Adjustments 5 6 OKIOFFICE 44 Service Manual P N 59276801 Section 6 Cleaning and Maintenance 6 1 Consumables Replacement The user or service personnel is required to replace the following items as consumable parts User Replaceable Items Life Expected Use Before Reference Item No Replacement in Fig 6 1 1 Part name Toner Cartridge 1250 sheets cartridge for OKIOFFICE 44 ITU T document sample No 1 For the second or later cartridge to a new I D Unit The first toner cartridge installed in a new I D unit will have a decreased yield I D Unit Image drum unit 4 500 sheets 1 page job 8 000 sheets 3 page job for OKIOFFICE 44 Service Parts Life Expected Use Before Reference Item No Part name Replacement in Fig 6 2 1 Fuser Unit 30 000 sheets for OKIOFFICE 44 Separation Rubber The Separation Rubber will not require replace ment for at least 30
76. 0 1 entered TIMING 100MS ES NO gt Installation Procedure 2 35 OKIOFFICE 44 Service Manual P N 59276801 Technical Functions 28 to 31 Table 2 9 2 5 5 ke F 28 Head Width E s Toggle X TYPE S TYPE2 29 Media type MEDI E FS lt s Setting X M gt MH gt H 30 Transfer roller latch current 30 TR LATCH CURRENT 3 X YES lt NO gt Setting X gt 0254 242 T o jo 00 Installation Procedure 2 36 OKIOFFICE 44 Service Manual P N 59276801 2 9 4 User s Functions This section explains the items usually set up by general users Table 2 9 3 shows the initial setting items and their purposes Each F P can be accessed by entering the corresponding function number on Function Programming The detailed procedure of the initial setting items will be explained on the following pages Note S ON Effective if the service bit has been set on FP Function program setting TF Technical function setting Installation Procedure 2 37 OKIOFFICE 44 Service Manual P N 59276801 User s Functions Feature Specifications Table 2 9 3 1 3 Item Specifications Auto dial 1 One touch dial Two digit dial Keypad dial Chain dial Mixed dial Manual dial Rec
77. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 CM M 00 00 00 00 00 00 00 00 RX DIS FF CB 01 00 73 17 22 00 00 00 00 00 00 00 00 00 00 00 00 00 DTC 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DCS 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 NSF FF CO 04 00 00 84 80 08 40 F4 10 40 F9 7D 20 OC OC OC OC 90 F2 52 72 F2 12 04 92 D2 F2 80 FO 80 40 80 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 NSS 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 NSC 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 CM JM 00 00 00 00 00 00 00 00 00 00 00 00 V 34 SYMBOL RATE SPS 3429 DATA SIGNALLING RATE BPS 228 RSEULT 00 TX 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
78. 000 documents fed Consumables Diagram Figure 6 1 1 1 Toner cartridge 2 I D image drum unit 4 Separation rubber Paper exit Q SS Cleaning and Maintenance 6 1 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Cleaning and Maintenance 6 2 OKIOFFICE 44 Serv Man P N 59276801 Others Reliability Table 6 1 1 Item Specifications Document feeder Jam occurrence and misfeeds in the automatic document feeder will be less than one in 500 operations for all specified documents Recording paper Jam occurrence in the automatic paper feeder will be less than one in feeder 1 500 operations and misfeeds will be less than one in 500 operations for all specified recording paper Battery The OKIOFFICE 44 does not have a battery The MTBF for the overall machine will exceed 3 000 hours of actual operation The MTBF will be measured at a confidence level of 95 under controlled laboratory conditions The MTBF will be based on 50 transmit and 50 receive activities CAUTION Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended by the battery manufacturer Dispose of used batteries according to the battery manufacturer s instructions Do not open the baitery dispose of in fire or short circuit The battery may explode leak or get hot This may cause personal injury Cleaning and Maintenance 6 3 O
79. 001 Sensor Photo 50410001 RSPL Illustrated Parts List D 15 OKIOFFICE 44 Service Manual P N 59276801 Section 7 Plate Assembly Scanner R Illustrated Parts List D 16 OKIOFFICE 44 Service Manual P N 59276801 Section 7 Table Plate Assembly Scanner R Oki parts Number Description OKDIATA P N N A Plate Scanner R N A 40084301 Motor S FX 048 40084301 RSPL N A B SCREW FA N A Illustrated Parts List D 17 OKIOFFICE 44 Service Manual P N 59276801 Section 8 Frame Assembly Scanner U Illustrated Parts List D 18 OKIOFFICE 44 Service Manual P N 59276801 Section 8 Table Frame Assembly Scanner U Oki parts Number Description OKIDATA P N N A Frame Scanner U N A 4PP3527 5153P001 BACK UP PLATE ADF 53339801 RSPL 40267001 SEPARATION RUBBER ASSEMBLY 53344901 RSPL 40021301 Plate Support N A 40021401 Spring Pinch L 40021401 RSPL 40021501 Spring Pinch R 40021501 RSPL 40021701 Guide Sensor B 40021701 RSPL 40021801 ADF SPRING 40021801 RSPL N A B SCREW FA N A 40021201 Roller Assy Sensor 40021201 RSPL 40022001 Bearing S 40022001 RSPL 4002080
80. 02 V to 127 V AC 230 V 15 14 AC 198 V to 264 V Frequency 50 Hz 60 Hz 2 Board Descriptions A 44 OKIOFFICE 44 Serv Man P N 59276801 3 Output ratings PinN Rated Rated Current Voltage Output Output s Voltage Current Range Range Ripple Noise CN3 1 to 3 5V 1 2A 0 2 to 3 9A 5V t 496 100 mVP P 250 mVP P CN3 8 24V 1 0A 0 to 1 0A 24 to 38V 500 mVP P CN3 9 8V 0 1A 0 to 0 1A 6 5to 12V 100 mVP P 250 mVP P CN3 12 5VS 20mA 15 to 50mA 5 t 496 100 mVP P 250 mVP P 4 Block diagram Figure A3 5 1 shows a block diagram of 048 POW The information contained herein can change without notice owing to product and or technical improvements Board Descriptions A 45 OKIOFFICE 44 Serv Man P N 59276801 suonduose peog V Ov L089 268 N d UEN M S tt 30I3HOIMO Regulator __ 8 V circuit circuit __ Regulator O 24 V 5V Control circuit O MPON Main power supply ON OFF O ACON F1 F2 O o 0 Main power gt L gt supply n Rectifyin ATIN Noise filter ied and circuit smoothing circuit Switching Q gt circuit RCC type Heater OUT lt s ee tro Standby power DEA i le supply circuit PGI PC2 My PC3 Regulator circuit Heater ON OFF
81. 09 I e N D WVUS d wrhnhh nh ohh mmm uondo WAN dIOd ALO OKIOFFICE 44 Serv Man P N 59276801 A 9 Board Descriptions G3 Send Mode Figure A2 1 2 shows the G3 send picture signal route In the G3 mode the data transfer route from the scan unit up to the DRAM is the same as in the copy mode described in 1 The picture data for one line is transferred from DRAM to CPU The CPU performs the picture data processing encode for this picture data FILLER fill bits are inserted etc and again stores into the DRAM The stored encoded data is output from DRAM to the MODEM under the control of CPU After modulation the picture signal S is sent to the NCU board as the transmission data The transmis sion data S goes through the amplifier and is sent to the telephone line L1 and L2 via the transformer T1 as high speed signal Board Descriptions A 10 OKIOFFICE 44 Serv Man P N 59276801 ejus Kqpuejs e Jo eurn ay je yun Kpddns tamod qns Aq pojonpuoo qoruA ynom y Z Lev 9JnBi4 jeuBis e1njoid pues 5 poq Aqddns saMmod u oA uSIH AO0tC 0CD OV yun Ajddng 1940gq 93t3 0A M0 T AHTO AHTL uodo 19402 IOSUOS I9UO Josuas jor o Ajddng 1amog 332104 Y3 1H IOSUOS MIM losuos Jopoo enue Joyeads AS AS NOOV LNO A0 C A0C D 1Sd8r0X4 Ajddng 14o0q SUIYOUMS JAO NO nding Ov uj A8 TAO Apct dAO AS t
82. 0XX the following codes are prepared for identifying an abnormal status in details 21XX 29XX 39XX 41XX 49XX For error codes in Group 3 transmission phase B For error codes in Group 3 reception phase B For error codes in Group 3 reception phase C For error codes in Group 3 transmission phase D For error codes in Group 3 reception phase D Cleaning and Maintenance 6 27 OKIOFFICE 44 Serv Man P N 59276801 Service Code List Table 6 15 1 1 2 Successful end of communication STOP key has been pressed while calling a remote fax Busy tone detected Dial tone not detected Line current not detected Calling and waiting for line connection time out Dialling limit time out Received signal other than DIS DTC Contents of received DIS DTC are faulty Each time there is no response from the receiver for sending TCF three times TCF fall back is not possible Received signal other than the desired signal in response to sending TCF Transmitter tried to transmit by confidential transmission function but the remote fax has not the capability of confidential reception Transmitter tried to transmit by Broadcast Initiate function but the remote fax has not the broadcast capability In Closed Network setting TSI CIG CSI is either not received or if received it is not authorized one Contents of CM JM are faulty at transmission side Phase 2 time out at transmission side Phase 3 time out at transmission side
83. 1 IADA JOALIG 410d ALO ZHN 07 mx aans ix PEOLHS i Ndo TILINO Ium s Surgyoourgs IO IOAUOD 00 00Z c OOV MHIL ATa 3urpo eq SoYAq Qp9 19jjng XH LSO onuoo 1ojuriq b c VDOI onuoo 631 nding OV i OKIOFFICE 44 Service Manual P N 59276801 Aud lt I cino 1O Our d x tap 00 1 0V LVGH s IVL Tod 7 TINO peoy TI INQ 10100 9 w Suruueoag NO uruj sjop 9 losuos v l EVDO K C1 aiv lt Z ot SV LVCS 01 0V LvdS C INO TX gx TA CIS aN D INV3IS d uondo WAW Sx T t1 SNO egvul py Board Descriptions Block Diagram Abbreviations A D Analog to digital converter AMP Amplifier BATT Battery CNi Connector number i CPU Central processing unit D MOTOR Drum motor DRV Motor drive DRAM Dynamic random access memory EXSEED Image proccessing gate array FAN Fan motor FLASH Flash memory IOGA 3 Input output gate array PCi Photocoupler number i POW UNIT Power supply unit PSRAM Pseudo SRAM R MOTOR Resist motor RTC Real time clock S MOTOR Send motor SRAM Static random access memory X tal Crystal oscillator Board Descriptions A 5 OKIOFFICE 44 Service Manual P N 59276801 A1 2 Function of Each Unit The section describes the principal functions of the individual units of the OKIOFFICEA4 electrical Figure A
84. 1 Gear Z31 40020801 RSPL 40026301 Bar Discharge 40026301 RSPL N A Cord Earth N A 40021001 Frame Assy Scanner U 40021001 Illustrated Parts List D 19 OKIOFFICE 44 Service Manual P N 59276801 Section 9 Cover Assembly Top OKIOFFICE 44 Service Manual P N 59276801 Illustrated Parts List Section 9 Table Cover Assembly Top Oki parts Number Description OKIDATA P N 40022101 Cover Assy Top 40022101 Includes all items shown N A Cover Top N A 40022301 Holder LED 40022301 RSPL N A Guide Document L N A N A Guide Document R N A 4PP4128 1268P001 PLATE EXIT N A 4PP4083 2024P001 EJECT ROLLER A N A 4PP4083 2328P003 PINION GEAR B N A N A B SCREW FA N A 40093201 Spring Support 40093201 RSPL 40175801 Film Exit A N A Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 10 Plate Assembly Base Illustrated Parts List D 22 OKIOFFICE 44 Service Manual P N 59276801 Section 10 Table Plate Assembly Base Oki parts Number Description OKIDATA P N 40023701 Plate Assy Base 40023701 RSPL N A Plate Base N A N A RUBBER A N A 40026001 Sheet Insulation 4002600
85. 1 General Procedure of Key Operation qsassodsedisevnussidiands dede ti e ernir arr aR ES 2 14 Key Operation Flowchart csesisiissensseonsrssseongi enaa i et 2 15 292 Technical PUG ONG ux u ku ET RENAE E E E den un E EE 2 18 Service Personnel Initial Settings Table 2 9 1 1 7 2 19 Service Personnel Initial Settings Table 2 9 1 2 7 a 2 20 service Personnel Initial Settings Table 2 9 1 3 7 2 21 Service Personnel Initial Settings Table 2 9 1 4 7 2 22 Service Personnel Initial Settings Table 2 9 1 5 7 iiie pnta entera b ean 2 23 service Personnel Initial Settings Table 2 9 1 6 7 2 24 Service Personnel Initial Settings Table 2 9 1 7 7 a 2 25 TEL FAX Automatic Switching rs gst taeda tines edna acacia esas d dis 2 26 TEL FAX Mode Flow Chart uuu me 2 27 TAD Mode Plow Chart Type Dua aaa askani haah say Enns 2 28 TAD Mode Plow Chart Type 2 sisemisest e ei 2 29 29 3 Technical Functions Example eei peetac ies puma seiorn seediere 2 30 Technical Functions 01 to 11 Table 2 9 2 1 5 2 32 Technical Functions 12 to 16 Table 2 9 2 2 5 2 33 Technical Functions 17 to 23 Table 2
86. 1 2 1 shows the pertinent block diagram Main Control R44 Board CPU Basic processor Scanning control Picture processing control Printing control SIO Serial input output control IOGA Input output gate array Scanning control Printing control Peripheral input output control Flash memory Instead of EP ROM and SRAM Memory storage for work area DRAM Memory storage for ECM operations memory broadcast delayed broadcast etc Back up battery circuit Real time clock IC Audio monitor circuit Contact image sensor control I EXSEED For OKIFAX 5000 series Image data processing SRAM For OKIFAX 5000 series Memory storage for image picture data Supervision of the following external statuses Presence of document on hopper Presence of document at scanning position Send motor control Fan motor control Drum motor control Resist motor control Modem chip Modem board For OKIFAX 5500 5600 Modulation and demodulation for V 34 for OKIFAX 5500 5600 Modulation and demodulation for V 33 and V 17 Modulation and demodulation for V 29 and V 27 ter Modulation and demodulation for V 21 Generation of single frequency signals for tonal signals Detection of single frequency tonal signals Generation of dual time multiple frequency signals for tone dialing Operation Panel Unit O4W Board Supervision of switches on operation panel Control of LEDs on operation panel Control of LCD on operation panel LED Light emitting diode LCD Liquid crysta
87. 1 RSPL 40128001 Cord Flat 40128001 RSPL N A Sheet FG N A Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 11 Printer Base Frame Unit 1 of 2 24 Note 24 is a small part on item 21 Z wr uto ES gt SY 17 19 15 3 Y IAA 14 1 16 a Illustrated Parts List D 24 OKIOFFICE 44 Service Manual P N 59276801 Oki parts Number Section 11 Table Printer Base Frame Unit 1 of 2 Description OKIDATA P N 2PA4083 1132G1 Frame Base Assy 50221701 RSPL 3PP4083 1191P1 Sensor Paper E 50410601 RSPL 4PB4083 1245P1 Pad Friction 51711701 RSPL 3PP4083 1244P1 Guide Separator 51021701 RSPL 4PP4083 1246P1 Spring Compression S 50931001 RSPL 3PA4083 1193G1 Sensor Toner Assy 50410801 RSPL 4PB4083 1172P1 Motor Pulse Main 56513501 RSPL 4YA4083 1600G2 Drum Image 56116101 Consumable 40035001 Cartridge Toner 52106201 Consumable 4PB4083 1129P1 Roller Hopping 53348201 RSPL 3PP4083 1128P1 Holder Roller Hopping Roller 50708801 RSPL 3PB4083 1127P1 Magnet H Hopping Shaft 50809001 RSPL 3PA4083 1133G1 Shaft Hopping Assy 51113901 RSPL NK2 10 SUS Pin Knock 50607901 RSPL 4PP4083 1143P1 3PP4083 1184P1 3PP4083 1142P1 Gear Id
88. 10 Related Signals of PC1 PC2 A 32 OKIOFFICE 44 Serv Man P N 59276801 A3 1 9 R44 Circuit Diagram 1 Block diagram The circuit diagram consists of the following functions and connectors C9 Drum motor driver TRA TR2 Clutch driver Connector CN15 that provides an interface between R44 board and the resist motor Connector CN2 that provides an interface between R44 board and the clutch Figure A3 1 11 shows the related signals of the drum motor and clutch 2 Function 1 Drum motor control This drum motor is driven by the motor driver IC9 It is two phase excited and bipolar driven according to the DMPHI DMPH2 and DMONI N signals that are generated from the CPU This drum motor rotates the image drum 2 Clutch When starting to print performs the paper supply of recording paper by using this clutch Clutch is driven by CLUTCH signal generated from CPU R44 CNI5 DMPHI IC9 DM TI 1 Drum motor DMPH2 DM T2 2 p Drum motor CPU DMONI N drive DM T3 3 P Clutch DM T4 4 2 phase excitation CN2 TR4 TR2 PJON 2 Clutch gt gt drive OV Ci Clutch Figure A3 1 11 Related Signals of Drum Motor and Clutch Board Descriptions A 33 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Board Descriptions A 34 OKIOFFICE 44 Serv Man P N 59276801 A3 1 10 R44 Circuit Diagram 1 B
89. 19 POWER SAVE MODE 20 ECM FUNCTION 21 ON ON 22 PC FAX SWITCH 2 ON TEL NO 12345678901234567890 CALL BACK NO 12345678901234567890 FORWARD TEL NO 12345678901234567890 REDIAL TRIES SIRY DIAL TONE DETECT OFF MF TONE DP PULSE MF PULSE MAKE RATIO 39 MF TONE DURATION 100MSEC PBX TYPE NORMAL DIAL PREFIX OFF REDIAL INTERVAL BUSY TONE DETECT PULSE DIAL RATE PULSE DIAL TYPE PBX LINE AUTO START IT2 DETECT 1 Function 14 is printed when 2 nd Tray is installed 2 Function No 22 is printed when CTR board is installed 3 Incase of country code FRE General Information 1 34 3MIN ON 10PPS NORMAL OFF ON ON 3 OKIOFFICE 44 Service Manual P N 59276801 Service Default Report Configuration Report Service bitZON FUNCTION LIST 01 04 07 o 22 25 28 31 Note SERVICE BIT ON TIME DATE PRINT OFF TAD MODE TYPE2 IDY DMY MDY MH ONLY OFF T1 RX TIMER VALUE 35 SEC ERR CRITERION VALUE 10 ATTENUATOR 10DB RING DURA 10MS 12 LED HEAD WIDTH TYPE1 SYMBOL RATE 3200 CONFIGURATION 02 055 08 11 14 17 20 23 26 29 MONITOR CONT OFF TSI PRINT OFF REAL TIME DIAL TYPE2 LONG DOC SCAN OFF H MODEM RATE 4 4K T2 TIMER VALUE 0 SEC OFF HOOK BYPASS OFF T F TONE ATT 10DB CML TIMING 100MS 3 MEDIA TYPE MEDIUM No 30 is only for
90. 2 T One touch key pressed Y 5 ECHO PROTECTION Setting Toggle X YES NO gt X OFF S ON One touch key parameters Installation Procedure 2 52 OKIOFFICE 44 Service Manual P N 59276801 Note 1 RESOLUTION amp ORIGINAL of TX mode default setting can be selected by using key while documents are loaded in the ADF STD NORMAL gt STD DARK gt STD LIGHT FINE NORMAL r EX FINE NORMAL FINE LIGHT FINE DARK L gt EX FINE DARK EX FINE LIGHT PHOTO NORMAL PHOTO DARK A PHOTO LIGHT lt Note 4 When the CTR board is not mounted the PC FAX switch is bypassed as follows bypass 22 PC FAX SWITCH X YES NO 9 23 0NE TOUCH PARM X YES NO 9 Installation Procedure 2 53 OKIOFFICE 44 Service Manual P N 59276801 Ring Response Time Before specifying the ring response time set the service bit on following the operations shown in 2 9 3 1 Service Bit Setting Operations The display shows e To begin press SELECT FUNCTION key once and one touch key No 9 in the standby mode when no SELECT FUNCTION OT MEMORY AVAIL 100 message is in memory
91. 255 sec HR amp C 4 X 010 255 sec C 4 3 digit timer ente 059 Y 16 T1 RX T O VALUE ES NO Example lt To 16 TI RX T O VALUE j To 17 T2 T O VALUE OKIOFFICE 44 Service Manual P N 59276801 Technical Functions 17 to 23 Table 2 9 2 3 5 re F 17 T2 timeout value DIS bit 32 19 Error criterion 20 Off hook bypass NL equalizer 22 Modem attenuator 23 T F tone attenuator for TEL FAX switch Installation Procedure X 17 T2 T O VALUE YES lt NO gt Ses T2 T O VALUE 000 ENT ER 000 255 059 YES 3 digit timer entered k To 18 DIS BIT32 X 000 255 17 T2 T O VALUE gt NO Example gt Setting Toggle X OFF S ON c ERROR ENT ER 00 99 CRITERI ON 2 digit timer entered ERROR YES P 4 To 20 OFF HOOK BYPASS X 00 99 CRITERI ON gt NO le HO ES OK BYPASS gt NO Setting Toggle X OFF S ON
92. 3 OKIOFFICE 44 Service Manual P N 59276801 5 3 Measurement 1 Remove the AC power cord 2 Carry out the disassembly procedure up to Cover assembly top Frame assembly scanner and Unit printer Refer to the Mechanical Disassembly and Reassembly in Chapter 4 1 3 Connect extension cables to the R44 board 4 Connect the frequency counter for clock frequency digital voltmeter for power voltage and Oscilloscope for SIG signal See figure 5 2 1 5 Reconnect the AC power code Main power supply is set to ON PC1 ON by loading the document on the cover top except 5V SUB 6 Measurement 7 Remove the AC power code 8 Reverse the disassembly procedures Connector CN5 1 pin SIG Ground Terminal LC2 3 Pin Ground Terminal Crystal Oscillator I i iG UTD LOT as s in REY owe as en Di ru L3 n eu HS os el z m tr ca E Connector CN7 ite 1 12 ts suc AME CN7 1 2 3 45VDC CN7 8 30VDC CN7 9 8VDC CN7 12 5VSUB ITI n d 222288 pi pa i E n 6 p i nd um Bus T V 941 8 2 121 214 4 923 419 4 496 260 4 942 518 E C Boom BH an 40004299 T mn Fil EE sasa o Figure 5 2 1 Measurement Points on R44 Board Adjustments 5 4 OKIOFFICE 44 Service Manual P N 59276801 Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops
93. 4 The relationship between memory capacity and mounted boards are shown in the following table Equipment Memory RAMI RAM2 RAM3 RAM4 Mounted Capacity Board Name OKIOFFICE 44 1 Mbyte Mounted Mounted Not mounted Not mounted MEMO 2 Note The OKIOFFICE 44 does not back up the message received in memory during a power failure Board Descriptions A 56 OKIOFFICE 44 Serv Man P N 59276801 3 Image memory capacity Memory OKIOFFICE 44 Condition pages Standard 17 without option With Option Board 1 0 Mbyte 100 Note No of sheets are counted provided that ITU T No 1 sample document is used No of sheets are typical value Related Signals of Memory Board Option Figure A3 10 1 R44 MEM 2 option ADO to AD7 CN13 CN ADO to AD7 lt CPU A0toA18 AD AIS N s J RD N Au RD N s B12 WRL N gt WRL N gt A20 A21 15 PCSI N to PCS4 N A B19 B20 PCSI N to PCS4 N P SRAM 10GA PSREAD N A19 PSREAD N RAMI RAM2 55 p A13 Bis 5y AS B5 A18 T a gt B18 Board Descriptions A 57 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Board Descriptions A 58 OKIOFFICE 44 Serv Man P N 59276801 A3 12 CTR PC Interface Unit Circuit Diagram CTR board
94. 4 IMAGE IN MCF 05 SENDER ID 06 MONITOR VOLUME 07 BUZZER VOLUME 08 CLOSED NETWORK 09 TX MODE DEFAULT 10 T F TIMER PRG 11 RING RESPONSE 12 DISTINCTIVE RING 13 l ST PAPER SIZE 14 27ND PAPER SIZE 15 USER LANGUAGE 16 INCOMING RING 17 REMOTE RECEIVE 18 MEM FEEDER SW 19 Not Used 20 ECM FUNCTION 21 REMOTE DIAGNOSIS 22 PC FAX SWITCH 23 ONE TOUCH PARAM For Function Programs 01 through 23 refer to Table 2 9 4 2 Dial parameters Dial parameters REDIAL TRIES REDIAL INTERVAL DIAL TONE DETECT BUSY TONE DETECT MF TONB DP PULSE PULSE DIAL RATE PULSE MAKE RATIO PULSE DIAL TYPE 9 MF TONE DURATION 10 PBX LINE 11 FLASH EARTH NORMAL 12 AUTO START 13 DIAL PREFIX 14 Not Used pb ON Q Q L Refer to Table 2 9 6 for specification of dial parameter settings 3 Clock adjustment Date and time adjustment continued on next page Installation Procedure 2 44 OKIOFFICE 44 Service Manual P N 59276801 One Touch Key Program Settings Table 2 9 4 4 4 F OT PM Item Specifications continued from previous page 4 System data program 1 TSI CSI Registration of TSI CSI CIG numbers and space in 20 digits TSI Transmitting Subscriber Identification CSI Called Subscriber Identification CIG Calling Subscriber Identification SENDER ID Registration of sender ID alphabetic numeric and symbolic in 32 digits CALL BACK NO Registration
95. 4 1 1 shows the tools required for the replacement of parts such as circuit boards and mechanical units Table 4 1 1 Tools No Service tools Q ty Remarks 1 C J Philips screw driver L 1 2 j m Philips screw driver M 1 3 Flat screw drivers S 1 4 Philips screw driver S 1 5 CLE Radio pliers 1 6 Cub Nippers 1 7 Multimeter l Short ciucuit test 4 1 3 How to Disassemble and Reassemble This section explains how to disassemble and reassemble the fax Figure 4 2 shows the disassembly procedure flow as generalization The detailed disassembly procedure is explained from sub section 4 1 3 1 to 4 1 3 18 Disassembly 4 3 OKIOFFICE 44 Service Manual P N 59276801 Disassembly Procedure Flow Figure 4 1 1 2 y Item number for detailed 206 3 4 1 3 1 description Open the Cover LED Print Head Assembly Top 4 1 3 2 ID Unit 4 1 3 2 4 1 3 2 4 1 3 2 Cover Rear Cover NCU gt Cover Main 4 1 3 2 029 4 134 LIT I Feeble gt Separation Rubber i _ Scanner U o _ 4 1 3 3 4 1 3 3 4 1 3 3 Open the OPE D Bracket package Printer Unit Panel e Assembly 4 1 3 6 4 1 3
96. 4 3 4 1 3 How to Disassemble and Reassemble a 4 3 Disassembly Procedure Flow Figure 4 1 1 2 uude easet aka dedere partera eene 4 4 Disassembly Procedure Flow Figure 4 1 2 2 4 5 Whole Unit PIct rteu a usnu 4 6 4131 CED Print CAG uuu sri en Dui aed nd tix uuu E 4 7 4 1 3 2 Image Drum and Covers Rear NCU Main and NCU Board 4 8 2 135 Unit 048 OPE Pane lesie uu uqa UIN E MEN UU NNNM E MM 4 10 4 1 3 4 Separation Rubber Sensor Frame Roller Assembly U 4 11 4 1 3 5 Roller Assembly ADF CIS Lever PC1 and PC2 4 12 4 1 3 6 Board R44 OKIOFFICE 44 Power Supply Unitt 4 14 4 1 3 7 Option Board Memory MEM Board CTR PC Interface 4 16 4 1 3 5 Printer Unit Section sicaire sa rE idc qni pint fem qitod tous 4 17 2 1 3 9 TeansterRollepu u y uuu Eoque n mtt Sa Suka Saas 4 18 4 1 3 10 High Voltage Power Supply Unit TLHV OLHV 4 19 21 3 1 Holder Assembly eenn a E tetra reas 4 20 21 3 12 Plate Side M and G earsldleuu u uu 1 u ocean iren umitiequided o egt 4 21 4 1 3 13 Registration Rolleru iiie u eiiean Od Lon ani a bate cR qu E 4 22 21 3 14 Drive Shaft E Eject and Eject Roller 4 23 41 315 Heat Assembly e
97. 45 1 48 48 51 51 54 54 Sh E 60 60 63 63 66 66 69 69 72 72 T5 75 78 78 81 81 84 84 87 87 90 90 93 93 96 96 99 99 MAX OT AD KEYPAD 1 FX 480 10 45 1 2 FX 050VP 15 64 5 3 FX 175VP 30 99 5 OKIOFFICE 44 Service Manual P N 59276801 Broadcast Confirmation Report Format Example BROADCAST CONFIRMATION REPORT 07 01 96 17 05 PAGES 01 ID OKI TOTAL TIME 00 02 30 LOCATION ID PAGES RESULT LOCATION ID PAGES RESULT ONE TOUCH 1 sumi 0 OK 2 OT2 01 OK 3 OT3 0 OK 4 OT4 01 OK 5 OT5 0 o AUTO DIL 01 AD1 0 OK 02 AD2 01 OK 03 AD3 0 OK 04 GERMAN 01 OK 05 AD5 0 OK KEYPAD 1234 0 OK 3456 0 e 5678 0 e F030 C1 010 Confidential Reception Report Format Example 07 01 96 17 05 ID OKI DATE TIME S R TIME DISTANT STATION ID MODE PAGES RESULT 07 01 00 20 00 00 OKI FAX BOX 01 02 OK 0000 General Information 1 31 OKIOFFICE 44 Service Manual P N 59276801 Telephone Directory for OKIOFFICE 44 1 2 Example TELEPHONE DIRECTORY P1 LOCATION ID ONE TOUCH 1 OKI SERVICE 2 OKI OFFICE 3 OKI LABORATORY 4 ODC TAKASAKI 5 ODC QA QC LAB 8 9 10 AUTO DIAL 01 02 03 04 07 ODC TAKASAKI General Information OR OR OR OR OR OR OR OR OR OR SCR TCR C jq j jq I lt I lt RO jq jq jq I lt I lt lt IC j I lt I lt I daaa 07 01 96 19 19 ID OKI DATA CORP TEL NO 123123 123 222333 456 456 555 666 789
98. 6 Board R44 Board FX 048 Power supply Unit 4 1 3 3 4 1 3 3 4 1 3 3 4 1 3 3 Unit 048 OPE Panel PCB Assembly f gt OPE Panel gt Assembly gt O4W gt Holder Pep 4 1 3 4 4 1 3 4 4 1 3 4 Frame Assembly Back up Roller Assembly Scanner U Plate Sensor 4 1 3 5 4 1 3 5 4 1 3 5 Frame Assembly Plate Scanner L Scanner L Speaker 4 1 3 5 4 1 3 5 Plate Assembly Scanner R 4 1 3 5 4 1 3 5 4 1 3 5 Plate Earth Plate Assembly ADF Scanner B FERES 4 1 3 5 CIS contact image sensor Disassembly 4 4 OKIOFFICE 44 Service Manual P N 59276801 Disassembly Procedure Flow Figure 4 1 2 2 Printer Unit 4 1 3 1 9 Start pl i 4 1 3 9 Open the Cover Assembly Top ID Unit BENI 4 1 3 9 c Transfer roller 4 1 3 2 4 1 3 2 4 1 3 2 Cover Rear Cover NCU Cover Main 4 1 3 10 4 1 3 15 High voltage Heat 7 Power Supply gt Assembly TLHV OLHV 4 1 3 10 Holder Assembly 4 1 3 14 4 1 3 18 o gt Drive shaft E Paper Sensor E and Eject Roller Paper Sensor Exit J Toner Sensor Assy 4 1 3 16 Plessure Roller B Backup Roller Y 4 1 3 3 4 1 3 3 Pu DT I Open the OPE Separation Printer Unit L gt gt A p Panel Asse
99. 76801 4 1 3 17 Hopping Shaft Assembly 1 2 Disassembly Disassembly procedure a b c d e g First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN Dismount the high voltage power supply board See Section 4 1 3 10 Dismount the paper holder assembly See Section 4 1 3 11 Dismount the sheet guide See Section 4 1 3 12 Hopping shaft assembly Dismount the side plate M See Section 4 1 3 12 3 Knock pin uc H im ditm holder Raise uproller holder slide hopping shaft Hopping roller assembly and dismount roller holder and hopping roller Knock pin also comes off at the same time Take care not to lose it CP4 1 Fig 33 Draw out hopping shaft assembly to the right and dismount magnet H Reassembly procedure Reverse the disassembly procedures 4 26 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 18 Paper Sensor E Paper Sensor Exit and Toner Sensor Assembly 1 Disassembly procedure a First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN b Dismount the high voltage power supply board See Section 4 1 3 10 c Dismount the paper holder assembly See Section 4 1 3 11 Paper sensor exit d Dismount the heat assembly See Section 4 1 3 15 e Dismount the drive shaft E See Section 4 1 3 14 y f Dismount the paper senso
100. 789 789 777 888 999 000 111 222 444 555 666 1234 5678 90123 123 123 123 Dosh Sor Bar 0273 28 1234 1 32 PRM ECHO OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OKIOFFICE 44 Service Manual P N 59276801 Telephone Directory for OKIOFFICE 44 2 2 Example TELEPHONE DIRECTORY P2 07 01 96 19 20 ID OKI DATA CORP GROUP NUMBER 1 2 3 4 5 1 ONE TOUCH 1 2 3 4 5 6 7 8 9 10 AUTO DIAL 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 2 ONE TOUCH AUTO DIAL 3 ONE TOUCH AUTO DIAL 4 ONE TOUCH AUTO DIAL 5 ONE TOUCH 5 AUTO DIAL 07 General Information 1 33 OKIOFFICE 44 Service Manual P N 59276801 NOTE Configuration Report User CONFIGURATION The function settings shown ARE NOT the factory defaults Refer to Section 2 for the technical func 07 01 96 17 05 OKI ERR REPORT MCF ON MONITOR VOLUME LOW TX MODE DEFAULT FINE NORMAL DISTINCTIVE RING OFF USER LANGUAGE ENGLISH MEM FEEDER SWITCH MEMORY REMOTE DIAGNOSIS OFF ID tion setting defaults FUNCTION LIST 01 MCF SINGLE LOC 02 MCF MULTI LOC 03 ON ON 04 MESSAGE IN MCF 05 SENDER ID 06 ON ON 07 BUZZER VOLUME 08 CLOSED NETWORK 09 MIDDLE OFF 10 T F TIMER PRG 11 RING RESPONSE 2 35SEC 1RING 13 1 ST PAPER SIZE 14 2 ND PAPER SIZE 1 15 A4 A4 16 INCOMING RING 17 REMOTE RECEIVE 8 ON OFF
101. 8 gt HDATA 0 6 Shift register gt gt Y Y Y IOGA HLATCH gt 9 gt Latch STRBI N to STRB4 N t Y Y S 10 11 12 13 ae LED 1664 bits 208 mm 0 VP gt L2 V 3 4 me 5 V OV gt OV Figure A3 1 7 Related Signals and Block Diagram of LED Head Board Descriptions A 29 OKIOFFICE 44 Serv Man P N 59276801 A3 1 8 R44 Circuit Diagram Jl Block diagram The circuit diagram consists of the following connectors Connector CN10 that provides an interface between R44 board and NCU board Connector CN3 that provides an interface between R44 board and external electro mechanical components PC1 and PC2 Connector CN4 that provides an interface between R44 board and OPE O4W unit Figure A3 1 8 shows an interface between R44 board and NCU board Figure A3 1 9 shows an interface between R44 board and OPE unit Figure A3 1 10 shows the related signals of PC1 and PC2 Function 1 External status supervising interface PC1 PC2 External status is detected by the photocouplers PC1 PC2 in the mechanism and the signal is output to the input port of CPU via this interface circuit PCI Presence of document on hopper When sub power supply is applied to the fax machine this signal is output to OPE unit which will control the main power supply PC2 Presence of document at scanning position Others NCU interface signa CML Line seizure control signal DP Dial p
102. 9 2 3 5 sese 2 34 Technical Functions 24 to 27 Table 2 9 2 4 5 2 35 Technical Functions 25 to 31 Table 2 9 2 5 5 2 36 Table of Contents TOC 1 OKIOFFICE 44 Service Manual P N 59276801 2 04 User s Finch uve bereit u ee oU P E Ese Ub Susa RUE 2 37 User s FUNCHONS PE orginal 2 38 Feature Specifications Table 2 9 3 1 3 es Rak ec epp eot one n Ef OUS 2 38 Feature Specifications Table 2 9 3 2 3 u ua usasssskassssss 2 39 Feature Specifications Table 2 9 3 3 3 ueste testes tetietr Manis epu nas te d E pK Rreas 2 40 One Touch Key Program Settings Flowchart 2 41 One Touch Key Program Settings Table 2 9 4 1 4 2 42 One Touch Key Program Settings Table 2 9 4 2 4 2 43 One Touch Key Program Settings Table 2 9 4 3 4 2 44 One Touch Key Program Settings Table 2 9 4 4 4 2 45 User Function Program Settings Table 2 9 4 1 4 cene 2 46 Purncuon Program ed cc ora retis DU o Ua jek etr sdb n ps otis dui a abes 2 46 User Function Program Settings Table 2 9 4 2 4
103. 9276801 2 3 Unpacking 2 3 1 Unpacking for OKIOFFICE 44 Procedure 1 Remove tape on the top of the carton box and open its cover External carton box Packing tape Packing tape Carton label FX048 C2 003 Figure 2 3 1 1 Unpacking Procedure 1 2 Take out the accessory box from the carton box See Figure 2 3 1 1 3 Take out the machine with plastic wrapper from the box Installation Procedure 2 4 OKIOFFICE 44 Service Manual P N 59276801 Tray document Toner cartrige Connecting cords Fixed cellophane tape Tray paper 4 points Carton box sheet 40240101 Machine 40240201 Pad Side R 40240201 External carton box FX048 C2 004 Figure 2 3 1 1 Unpacking Procedure 2 Installation Procedure 2 5 OKIOFFICE 44 Service Manual P N 59276801 2 4 Check of Contents After having taken out the machine and accompanied accessories from the carton box check the contents according to the following list Table 2 4 1 Contents List for OKIOFFICE 44 Item No Name Q ty Remarks 1 OKIOFFICE 44 1 2 AC power cord 1 3 I D unit 1 Already installed 4 Toner cartridge 1 5 Line cord 1 6 One touch sheet 1 Already installed T User s guide 1 8 Tray paper 1 9 Tray document 1 10 JetSuite Software 1 User s Guide 11 Quick Start Guide 1 12 WordScan OCR 1 Manual Installation Procedure OKIOFFICE 44 Service Manual P N 59276801 2 5 Installation of Attachments
104. C 01 COMP 60A0 07 01 96 17 00 OKI gt OKIFAX No 022 001 150 km n a1 F050 C1 008 2 2 Title of the report Date and time when the report was printed Sender ID Date of transmission or reception Length of time for which the fax was connected to the line Identification of the remote station Personal ID Location ID TSI CSI Dial number Communication mode Reference to ACTIVITY REPORT Number of transmitted pages or received pages Result of the communication Reference to ACTIVITY REPORT 10 Service code 11 Message General Information 1 29 OKIOFFICE 44 Service Manual P N 59276801 LOCATION ID o z ti d o PG Q T D 7 10 13 16 19 22 25 28 AUTO DIAL 01 04 07 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94 97 KEYPAD OTTO X OT16 OT19 OT22 OT25 OT28 64 2 1234 2345 3456 4567 General Information Broadcast Entry Report Format Example BROADCAST ENTRY REPORT LOCATION ID 11 17 20 23 26 29 H H H H m H H m m JHH H H m Ww H H m H H H m H H H m J H H m HW H H I U 1 30 07 01 96 17 05 ID OKI LOCATION ID 3 OT3 6 OT6 9 OT9 12 OT12 15 OT15 2 18 OT18 21 OT21 24 OT24 27 OT27 30 OT30 3 03 AD3 06 AD6 09 AD9 12 AD12 15 ADIS 18 AD18 21 AD21 24 AD24 27 AD27 30 AD30 33 33 36 36 39 39 42 42 45
105. D and password entry screen is displayed 3 1 2 Entering the ID and Password ID Password 12 10 1996 18 08 Operator ID sern xxxx The ID is recorded in the operation report as part of the system operator history Enter up to 50 alphanumeric characters except V for the ID Enter the password registered at installation When the correct password is entered TEL Directory menu screen is displayed If you enter wrong password three times ID and password entry screen is closed and return to the PC DOS command input state RMCS System G 13 OKIOFFICE 44 Service Manual P N 59276801 3 2 TEL Directory You can select such services items registration and deletion of information related to users We describe the detail of each service later There are two ways to specify an item select by using the T and keys then press Enter or enter the number before the item TEL DIRECTORY MEMU Select user Register user Delete user Data copy to another disk Terminate 12 10 1996 18 11 Operator ID scrn xxxx 3 2 1 To Terminate To terminate this system select Terminate on TEL directory menu screen or the main menu screen to return to PC DOS Caution After terminating remote management restore the original facsimile terminal setting See to Unable remote diagnosis 3 2 2 Selecting Destination Drive lt lt Data copy to another disk gt gt lt Destination
106. ED PARTS LIST SECTION 1 FG Ir C dl V SECTION 5 6 7 OPTION TELEPHONE Illustrated Parts List D 1 OKIOFFICE 44 Service Manual P N 59276801 Section 1 Cabinet Assembly 1 2 Illustrated Parts List D 2 OKIOFFICE 44 Service Manual P N 59276801 Section 1 Table Cabinet Assembly 1 2 Oki parts Number Description OKIDATA P N Unit Printer 100V Refer to Section 11 HOLDER ASSY Refer to Section 11 4YA4116 1228G001 LED HEAD 56112101 RSPL 4YX4083 1134G001 CABLE FLAT ASSY 56633401 RSPL Image Drum Unit 56116101 Consumable 4YB4049 1874P001 PWR Unit ACDC Switch 120V 4YB4049 1875P001 PWR Unit ACDC Switch 230V 40092201 Board R44 40092201 RSPL 40044501 Board UNC 40044501 RSPL US 40044307 Board WN5 44044307 RSPL OKI INT 40023701 Plate Assy Base 40023701 RSPL 40023901 Bracket Package 40023901 RSPL 40236401 Plate Assy Shield HV 40019201 Frame Assy Scanner L 40019201 40021001 Frame Assy Scanner U 40021001 40022701 OPE Panel Assembly 40022701 US 40025401 Cover Main 40025401 RSPL 40025301 Cover Front 40025301 RSPL 40025501 Cover Rear 40025501 RSPL 40025601 Cover NCU 40025601 RSPL 40022101 Cover Assy Top 40022101 RSPL 40026101 Illustrat
107. F Disables this function Error report MCF Enables or disables the automatic error report print ing when transmission error occurs Excepts for service bit 0 ON Printing the error report OFF Disables this function Image in MCF Enables or disables the automatic printing of the image on the first sheet below the message confirma tion report ON Printing the image in MCF report Memory transmission only OFF Disables this function The fax can transmit programmed alphanumeric message such as company s name consisting of up to 32 characters Enables or disables the sender ID function Outside only ON Enables OFF Disables Line monitor volume Controls the volume Settings OFF Low High Buzzer volume Selects the sound volume of each buzzer end of communication buzzer voice request buzzer and off hook alarm and software ringer from high low and middle levels Settings Low Mid High Note Fixed a low level for key touch tone Installation Procedure 2 46 OKIOFFICE 44 Service Manual P N 59276801 User Function Program Settings Table 2 9 4 2 4 Specifications Default Closed network The fax compares lower four digits of TSI CSI re ceived from remote station with fax numbers regis tered locally for one touch dial and two digits autodial If unmatched the communication will be automati cally disconnected OFF RX only TX and RX selectable Prevention of direct mail or wron
108. FAX MESSAGE TRANSMISSION STATUS DIAL NO OP 03 3456 7890 SENDING 144 MESSAGE TRANSMISSION COMPLETED Priority 1 PERSONAL ID 2 REMOTE TEL NO TSI CSI 3 DISTANT ID 4 DIAL NO NO YES RECEIVED DCN Y COMMUN ERROR EXAMPLES COVER DOC JAMMED etc RESULT OK ABOUT 1 SEC A 14 14 FAX STANDBY FX050 C2 021 Installation Procedure 2 66 OKIOFFICE 44 Service Manual P N 59276801 Typical Reception Flow Fig 2 9 6 14 14 FAX AUTO YES RECEIVE MODE RING DETECTED lt STANDBY MANUAL RECEIVE MODE OFF HOOK AND CONVERSATION PRESS START KEY START MANUAL RX START AUTO REC YES RECEIVING 96 Y 3 454 2111 RECEIVING 96 gt e FAX MESSAGE RECEPTION STATUS MESSAGE RECEPTION COMPLETED NO y YES RECEIVED o DCN NO PERSONAL ID OKI SHIBAURA RECEIVING 144 R EMOTE TEL NO CSI 3 3456 7890 ECEIVING 14 0 R 4 DISTANT ID polling RX OKI TOKYO RECEIVING 144 DIAL NO polling RX OP 03 3456 RECEIVING 144 Y Y YES mme ERROR RECEPTION INTERRUPTED
109. FF amp Tray printing Print Operation Description B 1 OKIOFFICE 44 Service Manual P N 59276801 3 4 5 Pulse motor Main This pulse motor of 48 steps rotation is two phase excited by the signal from the main control board it performs feeding control by switching normal rotation to reverse rotation or vice versa and turning on off the electromagnetic clutch The relationship between the main motor electromagnetic clutch registration gear drum gear hopping roller is shown in the table below and on the subsequent pages Main Motor Electromagnetic Clutch Hopping Roller Regist Gear Drum Gear Operation Normal rotation OFF Non rotation Non rotation Rotation Warm up ON Rotation Rotation Rotation Hopping Reverse rotation OFF Non rotation Rotation Rotation Prinitng LED head The shift and latch registers receive image data from the main control board for each dot line 2 560 or 2 496 LEDs are driven to radiate the image drum Heat Assembly The heat assembly consists of a heater a heat roller a thermistor and a thermostat The power supply unit supplies AC voltage to the heater according to the HEATON signal from the main control board to heat the heat roller The main control board monitors the heat roller temperature via the thermistor and keeps the temperature constant by turning on off the heater AC voltage supply If the heat roller temperature rises abnormally the the
110. FX 048 No 31 is only for FX 175VP General Information 1 35 07 01 96 17 05 ID OKI 03 06 09 123 15 18 21 24 27 304 COUNTRY CODE USA NO TONER MEM RX ON TEL FAX SWITCH ON TONE FOR ECHO OFF T1 TX TIMER VALUE 59SEC DIS BIT32 ON NL EQUALIZER ODB MF ATT 6DB LED HEAD STROBE 10100 TR LATCH CURRENT 1 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank General Information 1 36 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Installation 2 1 General Setup Information The following flowchart outlines the installation procedure Site selection See 2 2 Unpacking See 2 3 Check of contents See 2 4 Y Installation of attachments Y AC cord connection See 2 6 Y See 2 5 Telephone and line connections See 2 7 Y Packing for shipment See 2 8 Y General procedure key operations See 2 9 1 Technical functions need Technical functions example See 2 9 3 User s functions See 2 9 4 User s functions example See 2 9 5 e Function Program Y EE E E Ring response time Dial parameter Clock adjustment See 2 9 6 service bit off Installation Procedure 2 1 OKIOFFICE 44 Service Manual P N 59276801 x System data programming See 2 9 8 Y oe ue TSI sender ID included x One
111. I2VON 3 circuit we REB p IC3 MDMRD N a MDWR N x Real time p clock IC 32 768 KHz E Back up RTCCS battery circuit Figure A3 1 3 Block Diagram of DRAM Flash Memory Mask ROM and Real time Clock IC Board Descriptions A 25 OKIOFFICE 44 Serv Man P N 59276801 A3 1 4 R44 Circuit Diagram 1 Block diagram The audio monitor circuit consists of IC11 analog switch IC and IC5 amplifier generates the following audio monitor Line monitoring Buzzer signals Figure A3 1 4 shows the block diagram of audio monitor circuit 2 Function 1 Line monitoring Send and receive signals are input from the transformer on the NCU board to this circuit as a R signal and the signal power is input to the IC11 The IC11 adjusts the monitor volume by MONCO MONCI and MONC2 signal under the control of IOGA3 Output high and low from IC11 passes through the amplifier and is fed to the speaker as a SP signal MONCO MONCI MONC 2 signal Volume control signal Note In case of transmission mode the monitor will be available during dialing but the monitor will be switched off automatically after the elapse of specified time about 5 sec 2 Buzzer control Alarm and other signals are input from CPU to this circuit as BZ signals The various buzzer signals are sounded under the control of CPU 45
112. Interface 1 Disassembly procedure a Remove the Cover Rear by removing the screw 1 and the part of the fixing hooks b Remove the Plate Earth PC I F c Board Memory MEM Remove Board Memory on the connector CN13 of the Board R44 and removing the screw to the separation plate d Board PC Interface CTR Remove the Board Memory on the connector CN11 and CN12 of the Board R44 and removing the two screws to the pc earth plate Note Install on the inner side connector for the Board Memory MEM and outside connec tor for the Board PC interface CTR Board CTR di PC Interface Plate Earth vA PC I F e Rear Cover gt CP4 1 Fig 07 ee Z Disassembly 4 16 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 8 Printer Unit Section Base Frame Unit LED head Pressure roller B Back up roller s Transfer roller SL S ag Paper guide R Papr guide L High voltage power supply board Sheet guide Disassembly 17 Resistration roller Pulse motor main Power sensor E A Ne I AN F e Hopping p A E ENSE shaft assy Magnet H f hopping shaft f Roller holder Hopping roller Toner cartrige unit CP4 1 Fig 23 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 9 Transfer Roller 1 Disassembly procedure a Open the cover assembly Remove the ID unit b Remove the right claw Registration RS RC NN S
113. KIOFFICE 44 Service Manual P N 59276801 7 1 8 Auto Reception Failure Start Manual reception OK No Yes Your handset telephone No Is unit placed in the auto rings when a call arrives receive mode If not place the fax machine in that mode Yes 1 Check the handset of by pressing AUTO REC key telephone set 2 Check the line 3 Check the exchange Yes Solved Y Check the following items No 1 Placed in the manual receive mode 2 START key pressed to answer the call Set CLOSED NETWORK 3 Closed network is ON and the remote Function program No 08 phone number is not registered in to OFF one touch key or two digit auto dial code Yes lt Solved No Ringing signal is No detected at Pin 4 of CN3 NCU See 5 4 Yes Replace the R44 Board Yes lt Solved No Replace the NCU Board Yes Solved p No Y Check that the ringing signal meets the specification of the fax machine See Item of Table Return to section 7 1 1 Troubleshooting 7 13 OKIOFFICE 44 Service Manual P N 59276801 7 1 9 Reception Problem This section explains how to localize the cause of problems occurred after completion of connection with a remote station Start Step 1 Set MH ONLY Technical function No 13 to ON Yes Solved
114. KIOFFICE 44 Serv Man P N 59276801 6 2 Preventative Maintenance The recommended preventative maintenance of the following items should be performed twice a year once a year is the absolute minimum after the machine is installed Table 6 2 1 describes the preventative maintenance procedures Preventative Maintenance Table 6 2 1 Paname Maintenance Reference Item No Procedure in Fig 6 2 1 Roller scan Clean with water Roller ADF Clean with water If the surface of this roller becomes dirty and the dirt causes misfeeding of documents perform this cleaning Contact Image Sensor Check for accumulation of paper dust etc Clean with ethyl alcohol if necessary Separation Rubber Clean with water If this rubber is worn out replace it once a year Clean the surface of the head by moving the tissue LED print head paper back and forth several times Clean the inside of the printer unit by using a cloth Printer unit moisturized with cold water Apply silicone oil to the following parts Lubrication a Gears once a year Remove materials that have fallen from outside if Cleaning any Cleaning and Maintenance 6 4 OKIOFFICE 44 Serv Man P N 59276801 Preventative Maintenance Diagram Figure 6 2 1 4 Separation rubber 2 Roller ADF 5 LED head 1 Roller Scan Document exit 3 Image sensor 6 Printer block Cleaning and Maintenance 6 5 OKIOFFICE 44 Serv Man P N 59276801 6 3 Printer Counter Dis
115. M as R signal After demodulation by modem the picture data is sent to CPU The CPU performs the picture data processing decode for this picture data and stores into the DRAM Then the stored picture data is again written into DRAM as a page memory by the picture processing control of CPU When the data for one page has been stored in the DRAM P SRAM the data is read out from the DRAM and sent to IOGA The picture data is converted into a signal data by the printer control of IOGA and transferred to the LED print head for printing as HDATA 0 1 Board Descriptions A 12 OKIOFFICE 44 Serv Man P N 59276801 L ezv e1n514 jeuDis eunjoiq 3A109094 5 ejejs qpuejs e jo our ou W yun A ddns 190d qns Aq pojonpuoo qoruA ynam y sss pieoq Aqddns 19mod e3e3 oA QSrHQ AH TO AHTTL AOPC OCD OV yun A ddng Jamog 93v3 0A M0 T NSd8rOXA xunu yams Koy IADA JOALIG HIOd ALO ICE 44 Serv Man P N 59276801 CX 8X TA CIS 8IN D WV3IS d uo
116. Manual P N 59276801 2 9 11 On line Tests Transmission 1 Load documents 2 Make sure that The loaded documents are fed in automatically The STD and NORMAL lamps light The display shows SELECT LOCATION 3 Dial the telephone number of the remote machine by the ten key pad 4 Make sure that the telephone number of the remote machine is shown on the display 5 Press the START button 6 Typical message transmission flow is described in Figure 2 9 5 Reception 1 Use another machine for dialling 2 Make sure that The display shows AUTO REC START e The message is automatically received 3 Typical message reception flow is described in Figure 2 9 6 Installation Procedure 2 65 OKIOFFICE 44 Service Manual P N 59276801 Typical Transmission Flow Fig 2 9 5 14 14 FAX STANDBY e LOAD DOCUMENT S SELECT RESOLUTION MODE AUTO MANUAL SEND MODE YES DIALING NO OFF HOOK Q 5 MANUAL DIALING ONE TOUCH TWO DIGIT AUTO DIAL CODE KEYPAD DIAL ONE TOUCH KEY PRESS AUTO DIAL KEY ENTER DIGITS e g No 1 SEE THE CODE e g 01 4542111 DIALING Y 4542111 CALLING SPRES KEY ra B PERSONAL ID YES OKI SHIBAURA SENDING 144 REMOTE TEL NO CSI NO 03 3456 7890 pus SENDING 144 Y 4542111 3 454 2111 DISTANT ID SENDING 96 SENDING 96 OKI TOKYO SENDING 144
117. NT SETTING gt gt 1 Communication port setting 2 Frame size setting 3 Operation report Please select the desired item 12 10 1996 09 26 Operator ID sern xxxx Selecting ENVIRONMENT SETTING on the main menu to display this screen Communication port setting Select communication port to connect the IBM PC AT and PC I F Frame size setting Select a frame size for each frame to transfer TEL number data and program language default data during execution of File LOAD Center to FAX and EDIT ON LINE Operation report The operation report displays the transmission status Press F1 to return to the main menu screen RMCS System G 15 OKIOFFICE 44 Service Manual P N 59276801 4 Message Modifying Tool 4 1 Activating the Program After activating the PC AT with a hard disk insert the RMCS system disk into drive A When C gt _ is displayed enter the following commands to activate the program C gt A Enter A SCRNED Enter Then the screen for menu selection is displayed lt REMOTE MANAGEMENT CENTER SYSTEM gt lt lt MESSAGE MODIFYING TOOL gt gt MENU MESSAGE MODIFY MESSAGE SAVE MESSAGE LOAD TERMINATE PLEASE SELECT THE DESIRED ITEM Press 0 2 to display a screen for FAX model selection of each service Press Q to terminate the program and return to PC DOS 4 2 Modifying Message File selection Select MESSAGE MODIFY on the menu screen then the fo
118. ON 0 OFF 1 11010000 For RMCS Model 10 only Press the Esc key to cancel For the detail of setting refer to 2 2 1 After setting is completed press Enter Then the screen for verification is displayed Remote Management Center System lt lt DIP SW UPDATE gt gt DIP SW ON 0 OFF 1 11010000 Are you sure Y or N Y Press the Esc key to cancel 3 When the setting is corrected enter Y The dip switches are now updated If not correct enter N Then repeat from step 1 again RMCS System G 11 OKIOFFICE 44 Service Manual P N 59276801 2 2 6 Deleting the RMCS Basic System 1 When to delete enter Y then whole RMCS system is deleted When not to delete enter N Then the installation menu appears Remote Management Center System RMCS DELETE DIRECTORY C RMCS Are you sure Y or N N Press the Esc key to cancel RMCS System G 12 OKIOFFICE 44 Service Manual P N 59276801 3 RMCS Basic Operation 3 1 Activating and Terminating the system Before Activating the system If the facsimile terminal is equipped with a selector function to enable or unable remote maintenance set to enable in advance 3 1 1 To Activate Enter the following command in the PC DOS command input state C gt RMCS Remote Management Center System Copyright C 1995 Oki Data Co Ltd Copyright C 1995 Micro Technology Co After completing the necessary preparations the I
119. Pha pred mus Un M URS 7 27 EN NPRCIuEI KON 7 28 4121 Documebl Jal u cea She eat o Ie iter iba em ni edu M 7 30 T 1 22 Printer Unit CD 7 31 TA 22 1 PreGABtODS u Esel be tnn Ep I iL tee OUR EM M S 7 31 7 1 22 2 Troubleshooting Flow Charts of Printer Unit 7 32 Overall Troubleshooting Flowchart uote eret erect retis 7 32 1 Top CONSE 1S Open roe ccd hee secon pend reenter 7 33 2 Replace Image Drum Message a 7 34 3 Engine Controller BEIDE eiie aa ceperat Sere c tte Er tlet niu abad 7 35 4 Fuser Unit Th rmal Emon 255 oe sre m Gers avoid aa aucuns iu cds 7 36 S Paper Jalisa ees 7 37 6 No Paper Tray or No Paper eco qe un En isnadi 7 38 Action Items Printer Unit LCD Message Table 7 1 22 2 7 39 Sample Image Problems Figure 7 1 22 7 40 7 L22 3 Image Problems Table encore tete Dente DIRE D p UI Dus 7 40 1 Light or Blurred Output RR 7 41 8 Smeared Background on Output ensues 7 42 9 Blank Sor Pe 7 43 10 Vertical Black Stripes on Output s4sss 7 44 I1 Evenly Spaced Marks on Output 7 45 12 Missing Print on Outp t uas e uwa as UA e UR onn Oe bran 7 46 13 Vertical White Stripes on Output
120. Power Supply PCB in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board devel ops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before re moving the Main Cover for ser vice In the event that it is neces sary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard CP4 1 Fig 05 1 Disassembly procedure a Open the cover assembly top by raising Cover NCU ET 2 7 Cover Rear E Screw 2 Hook Remove the Cover NCU by removing the screw 2 and detach gt SORS ing the fixing hooks 4 b Remove the image drum unit c Cover Rear Remove the Cover Rear by removing the screw 1 and the detach the fixing hooks 2 d Cover NCU Disassembly 4 8 OKIOFFICE 44 Service Manual P N 59276801 Cover main e Move the left and right paper guides to the center Extend the unit two inches beyond the work bench to allow for clearance Lift from the rear the main cover f Board NCU Remove the Board NCU by removing the two screw 3 and disconnect the connector CN3 from Board NCU Guide paper R Holder assembly Guide paper L CP4
121. Press lt key YES NO 1 4 1 SELF DIAGNOSIS e Press lt key YES C NO 1 8 CPU PROG1 PROG2 e Press lt key to activate self diagnosis XXXX XXXX XXXX Display for 3 seconds 1 SELF DIAGNOSIS EXCUTING 1 SELF DIAGNOSIS PRINTING Figure 6 5 1 shows the printed data Self diagnosis data is printing Cleaning and Maintenance 6 9 OKIOFFICE 44 Serv Man P N 59276801 Self Diagnosis Test Sample Figure 6 5 1 CPU ROM CPU RAM PROG1 PROG1 PROG2 PROG2 LANGUAGE DEFAULT 1 RAMI 2 OPT RAMI 2 OPT I F VERSIO HASH VERSIO HASH VERSIO HASH VERSIO HASH VERSIO HASH DEFAULT TYPE AAO00 OK DACD OK AAO00 OK 3142 AAO00 OK 1234 LL10 OK 3F06 DD10 OK A683 1M OK 1M OK PARALLEL 01 07 01 96 1 marked item is shown for condition of all RAM except EXCEED RAM 2 marked items are options Cleaning and Maintenance 6 10 OKIOFFICE 44 Serv Man P N 59276801 Explanation of Self Diagnosis Test Items a Pattern 1 All white 32 lines b Pattern 2 Stair pattern 32 lines in each step c Pattern 3 All black 32 lines d Pattern 4 Alternate printing of black dots and white dots 32 lines x 2 e Pattern 5 All white 32 lines f CPU ROM VERSION CPU ROM In case CPU ROM is good HASH OK In c
122. Remote RX function is set to a value other than OFF that code can be used to force FAX RX during TAD Mode Operation or manual wawa call transmission 1 Installation Procedure Indication of LCD Calling Called TAD 14 14 TAD party party Ringing Zz y lt CML ON 21s resa from answer machine CNG Detection To record your message in Period answering machine TELEPHONE BUSY lt Answering lt CED Machine NSF CSI DIS Switches to FAX AUTO REC START P DCN CML OFF FX050VP C2 019 2 28 OKIOFFICE 44 Service Manual P N 59276801 TAD Mode Flow Chart Type 2 If the fax does not detect CNG signal during working of TAD the machine will go to standby mode NOTE If the Remote RX function is set to a value other than OFF that code can be used to force FAX RX during TAD Mode Operation Indication of LCD Telephone call Calling Called TAD 14 14 TAD or manual party part transmission Ringing o LL T CML ON 2 18 Cr from answer machine CNG Detection To record your message in Period answering machine TELEPHONE BUSY pe lt Answering Machine Switches to FAX F CML OFF 14 14 TAD FX050VP C2 020 Installation Procedure 2 29 OKIOFFICE 44 Service Manual P N 59276801 2 9 3 Technical Functions Example 1 Service Bit Setting 1 Purpose
123. SBI SB2 Board Descriptions Figure A3 2 17 High Medium Voltages Control A 41 OKIOFFICE 44 Serv Man P N 59276801 A3 3 OPE 04W Circuit Diagram 1 Block diagram Figure A3 3 1 shows a block diagram of OPE 04W The 04W operation unit circuit consists of the following blocks 1 IC1 one chip MOS CPU Output ports Setting LEDs on and off 8 ports Specifies the row during key switch matrix scanning 8 ports Input ports Detect the column whose key is pressed 8 ports 2 Key switch matrix 8 rows x 8 columns 3 LEDs 8 LEDs 4 LCD unit 2 Key switch scanning Output ports KSCANO to KSCANT signal corresponding to 8 rows of key matrix are scanned sequentially by the software In the case 1 is any of output from KSCANO to KSCANT signal which corresponds to the row 8 in the block diagram the software reads input port KSENSO to KSENS7 and determines which in the row 8 is pressed 3 LED drives and LEDs Eight LEDs ALARM PHOTO LIGHT etc on the control panel are driven by output of IC1 via resistors R1 R4 9 and R11 respectively An LED lights on when a port output is 1 Board Descriptions A 42 OKIOFFICE 44 Serv Man P N 59276801 R44 OPE 04W for OKIOFFICE 44 KSCANO X tal to CN4 CNI IC1 KSCAN7 Ors gt I l gt Key switch atr P RXDOPE 2 2 B mat
124. Start Guide English Only Handbook Hardware Guide Software Manual OCR Illustrated Parts List P N 59275501 P N 59275301 P N 59275401 P N 59278201 P N 58220401 P N 58323201 P N 58323301 P N 59276701 P N 59276801 P N 59275501 P N 59275301 P N 59275401 P N 59278201 31 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Illustrated Parts List D 32 OKIOFFICE 44 Service Manual P N 59276801 Appendix E Board Layout E 1 TLHV PCB Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord discon nected before removing the Main Cover for service In the event that it is neces sary to troubleshoot the unit with the Main Cover removed with AC power sup plied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Board Layout E 1 OKIOFFICE 44 Service Manual P N 59276801 E 2 MEM PCB eli weno E OKI P MEM eps Board Layout E 2 OKIOFFICE 44 Service Manual P N 59276801 E 3 TEL U PCB LUCA m ut se ie TEL U eps Board Layout E 3 OKIOFFICE 44 Service Manual P N 59276801 E 4 Hook PCB Hook ep
125. V CPU IC11 RM TRI BA e P Amplifier CN9 Speaker MONCO Analog 1 switch IC5 N 0 VA MONCI 3 5 dd F P MONC2 IC2 IOGA3 OVA OV Figure A3 1 4 Block Diagram of Audio Monitor Circuit Board Descriptions A 26 OKIOFFICE 44 Serv Man P N 59276801 A3 1 5 R44 Circuit Diagram 1 Block diagram The circuit diagram consists of the following functions C6 A D converter 30 V 24 V conversion circuit Connector CN5 that provides an interface between R44 board and CIS contact image sensor Figure A3 1 5 shows the related signals and block diagram of CIS Function One line picture data is read in the sequence from the scanning unit CIS as SIG signal analog data to A D converter analog digital converter of IC6 After conversion from analog data to 6 bit digital signal SDATAO SDATAS under the control of IC6 this picture data is sent to IOGA3 input output gate array Here the picture data undergoes various kinds of picture processings Sensor interface signal output from IOGA3 LEDON LED on off control signal SNSCLK Scanning sensor drive clock 714 286 kHz MISP Scanning synchronous signal 5 msec e ADCLK Sampling clock for A D converter 714 286 kHz 30 V 24 V conversion 30V n gt 24 V circuit IC6 SIG 1 SIG R44 CIS contact
126. W unit SELECT FUCTION OT MEMORY AVALI 100 to appear on LCD Pressing STOP key makes a key touch tone Yes Perform SELF DIAGNOSIS Note OPT RAM OK or NG is printed when the MEMORY board Option is inserted on the R44 board No Print test OK Yes Go to 7 1 4 Printing test failure No lt PROGI PROG2 check OK gt Yes No RAM check OK Replace R44 board gt Yes Local copy OK Replace RAM s on MEM board Then replace R44 board Yes Auto dial OK Go to 7 1 5 No local copy Yes Yes Transmission problem No No Go to 7 1 6 Auto dial failure Go to 7 1 7 Transmission problem Auto reception OK N N N N N Yes gt Go to 7 1 8 Auto reception failure Yes Reception problem No Verify symptom Troubleshooting Go to 7 1 9 Reception problem OKIOFFICE 44 Service Manual P N 59276801 7 1 2 No LCD Operation Start TIME on LCD Yes Return to section 7 1 1 Troubleshooting AC Power Cord plugged in Yes Properly connect the AC power cord 45V SUB at Pin 1 of CN7 R44 No Yes Check SPSU R44 boards and their connectors 5V SUB at Pin 6 and 7 of CNI OPE UNIT T Yes
127. X SWITCH ES YES NO Setting Toggle X OFF S ON MDY DMY format 10 MDY gt X YI Setting Toggle X MDYS DMY Long document transmission 11 LONG DOC SCAN z X YES NO Setting Toggle X OFF S ON No toner memory reception Setting Toggle X OFF S ON 09 10 Installation Procedure 2 32 OKIOFFICE 44 Service Manual P N 59276801 Technical Functions 12 to 16 Table 2 9 2 2 5 Tone for echo echo protection No High speed modem rate T1 TX timeout value XTTO value T1 RX timeout value Installation Procedure m E X Y ES NO FOR ECHO 13 MH ONLY X YES e NO 14 H MODEM RATE X YES e NO gt gt Setting Toggle X OFF S ON gt Setting Toggle X OFF S ON gt Setting X 4 8k gt 9 6k gt gt 14 4k 28 8k gt 33 6k X Y 15 T1 TX T O VALUE ES lt NO Y T1 TX T O VALUE 060 ENTER 010 255 3 digit timer ente 15 T1 TX T O VALUE 059 Y ES NO Example 16 T1 RX T O VALUE ES lt NO X X T1 RX T O VALUE NTER 010 255 035 E X 010
128. a qua Sa uad Sn ree nee arene orem Uie A 47 A3 5 2 OLPIV TLHIV Circuit Diagram 2 2 uuu asnasanaihyaasyassayaqqawawiasaasayywayayqanqay A 47 Boa UNC5 NCU Cireuit EHE R Q a mun lagu aa ER enc bd vv sa aus A 51 Block Diagram of UNC Figure A3 7 1 aee Furcesso testet ries sinat bres ia qasaqa dest A 53 A38 BLU Circuit Diagrami i CODUDID u ecu saan Ramesh teal cd dae mi eS epatis did A 54 Block Diagram or TEL U Option Fig A3 8 1 can pu retta ctun A 55 A3 10 MEMO Memory Circuit Diagram Option n A 56 Related Signals of Memory Board Option Figure A3 10 1 A 57 Table of Contents TOC 6 OKIOFFICE 44 Service Manual P N 59276801 Appendix B Print Operation Description B 1 BILL Electropbotograplilc Processor uu un a aaa auasaawaa iiei EEE EEEE pde uud B 1 Layout Drawing of Electrophotographic Processor Figure B1 1 B 1 Paper Feeding Diasram Figure D L uoceadd cte redd od s oed t pupa dudes en B 3 Bi El ctrophotographic Processus eec atre nete dae a aaah cpa ed eee es tata cae utes undi B 4 Electrophotographic Process Diagram Figure B1 3 B 5 B1 2 1 Operations Process Expla atI ns u v te aei iin api iouis ied atis B 6 l ns qe
129. al P N 59276801 gt NOTE 2 Setting Toggle X OFF ON SET User s Functions Table 2 9 5 2 2 Name of Function The Display Shows gt 13 1 ST PAPER SIZE Setting X J YES NO 9 1st cassette paper size X A4 LET LGL 13 9LGL14 4 t OTHER Not used 3 15 USER LANGUAGE Setting X YES e NO gt X ENG S Other User language gt 16 INCOMING RING Setting Toggle X YES e NO 5 X OFF j ON j DRC Incoming ring Remote receive 17 REMOTE RECEIVE X YES NO 9 OFF gt 11 422 33 944 5523 713 88 499 i C Memory and feeder FEDER SW n selection Setting ES c NO gt X MEM 5 FEED Not used ECM FUNCTION Setting Toggle YES NO X OFF ON ECM function Remote diagnosis E d AGNOSIS Setting Toggle NO gt X OFF ON gt X YES NO X OFF ON PC FAX switch gt 23 ONE TOUCH PARAM To FUNCTION NO YES OT NO
130. anagement Center System lt lt FAX SETTING gt gt FAX Disk set Push any key Press the Esc key to cancel 2 Insert a disk corresponding to the model into drive A then press any key The model number is displayed and the confirmation screen is displayed Remote Management Center System lt lt FAX SETTING gt gt FAX Disk set Push any key OOO00000000 Are you sure Y or N Y Press the Esc key to cancel 3 When the model number to be registered is correct enter Y The program corresponding to the model number is now registered If not correct enter N Then repeat from step 1 again RMCS System G 8 OKIOFFICE 44 Service Manual P N 59276801 2 2 3 Deleting the Facsimile Model No 1 Search the directory in which the system is registered When the system is found a list of registered models is displayed Remote Management Center System lt lt FAX DELETE gt gt 0 OO00000000 0 1 2 3 4 3 4 Page Up Previous page Page Down Next page Please select the FAX model Press the Esc key to cancel 2 Select the model number to be deleted This number is then displayed in inverse video The confirmation screen is also displayed Remote Management Center System lt lt FAX DELETE gt gt 0 OO00000000 1 2 3 4 Page Up Previous page Page Down Next page Are you sure Y or N Y Press the Esc key to cancel 3 When the model
131. anner B a a au ceo tops nese e hur s iieii D 14 section 7 Plate Assembly Scanner R a D 16 Section 6 Frame Assembly Scanner U u u unas se Lebe PM dus D 18 Section 9 Cover Assembly DOD saucius Donec duode io tuad aiias iaeiae ieia D 20 Section 10 Plate Nssernoly Desa oo u niisiis oiiaee Cede um une dd Cela dati epus D 22 Section 11 Printer Base Frame Unit 1 of 2 2 yaqa an aaa a enne nnne D 24 Section 11 Printer Base Frame Unit 2 of 2 uqa qana QS mas eene enne D 26 Section 12 Bro PP D 28 Section 13 Miscellaneous Ims siecle seca portes ri o Pe ise Dei a Qoa D et teeta D 30 bo iU A D 30 Cons mabl ocd epee omen sat ead a E clench eui nM akapa shi D 30 dois T renee eee eer D 30 eoe unn MN DUM P Hm D 30 Us r s Manuals Me t D 31 Service Technical Manuals RT er D 31 Table of Contents TOC 7 OKIOFFICE 44 Service Manual P N 59276801 Appendix E Board Eayotilu ueie n Ratte mmus E FER aD ke eth nha u uY E 1 ET THV PCB uuu t E 1 SOLVICO C HEIDE iape uqta EREE Menu tup sa cea iude api Metu are aad sas Lo ius E 1 E2 VIVE PCOB cresents en Aee Enae E E EOE ALES g EAE EEAS FU NI EH t NES E E 2 E3 WEBS PUB en E E A N OE E auqa iya aaa SS E 3 EA Hook PEB enine E A acre E EE n E 4 Appendix F Second Paper Feede
132. ase CPU ROM is not good HASH NG CPU RAM In case CPU RAM is good OK In case CPU RAM is not good NG g PROGI VERSION PROGI In case PROGI is good HASH OK In case PROGI is not good HASH NG h PROG2 VERSION PROG2 In case PROG2 is good HASH OK i LANGUAGE VERSION LANGUAGE In case LANGUAGE is good HASH OK In case LANGUAGE is not good HASH NG j DEFAULT VERSION DEFAULT In case DEFAULT is good HASH OK In case DEFAULT is not good HASH NG k RAMI In case RAMi is good OK In case RAMi is not good NG 1 is RAM s number J OPT RAMI In case OPT RAMI is good OK In case OPT RAMI is not good NG m OPT I F In case OPT I F is good PARALLEL In case OPT I F is not good ALL BLANK Figure 6 5 1 shows a printed sample NG No Good Cleaning and Maintenance 6 11 OKIOFFICE 44 Serv Man P N 59276801 6 6 Sensor Calibration Test 1 Purpose To adjust the linearity of the contact image sensor output levels NOTE After adjusting the levels check the copy quality of the unit Using the unit make copies of test charts or known good documents Operations The display shows e To begin press SELECT FUNCTION key TECH PROGRAMMING once and COPY key twice in the standby mode YES 1 4 NO gt with no message in the memory e Press key 1 LOCAL TEST YES lt NO 5 1 4 i e Press B key 1 SELF DAIGNOSIS YES am
133. at Technical Function 1 FUNCTION Standby Service Bit is set to ON Then press SELECT FUNCTION key Y SELECT FUNCTION OT MEMORY AVAIL 100 e Press one touch key No 6 OT6 Y l ACTIVITY REPORT YES lt NO 2 1 5 e Enter 5 5 5 PROTOCOL DUMP YES NO 2 1 5 e Press lt key c PROTOCOL DUMP PRINTING Printing Cleaning and Maintenance 6 21 OKIOFFICE 44 Serv Man P N 59276801 Sample Protocol Data Dump Figure 6 13 1 Sample is from the transmitter side PROTOCOL DUMP 07 01 96 09 21 ID OKI SHIBAURA DATE TIME S R TIME DISTANT STATION ID MODE PAGES RESULT 07 01 09 16 00 46 OKI HONJO CALLING 01 OK 0000 FCF TX C2 C4 FD F4 DF RX 04 02 01 21 31 TX RX TX DIS DTC 00 00 00 00 00 00 00 00 00 00 00 00 00 00 DCS 00 00 00 00 00 00 00 00 00 NSF 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 NSS FF C8 C4 00 00 84 80 30 40 E4 10 40 B8 39 20 OC OC OC OC 30 82 4A AA 82 42 92 12 CA 04 92 D2 F2 80 40 80 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 NSC 00 00 00 00 00 00 00 00
134. ata default User Functions Technical Functions 2 Procedure Operations The display shows e To begin press SELECT FUNCTION key TECH PROGRAMMING COPY key twice key and key YES 1 4 NO gt With no message in the memory 3 e Enter 3 3 SYSTEM RESET YES NO 2 1 4 ig 3 1 ALL DATA CLR b YES NO 2 1 3 Note ALL DATA CLEAR is to clear or zt 2 lt 2 initialize a to b 2 LOCATION DATA CLR m YES lt NO 2 1 3 lt gt 3 3 CONFIG DATA CLR YES NO 2 1 3 gt 4 Data CLR gt CLEAR End of data clear Cleaning and Maintenance 6 25 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Cleaning and Maintenance 6 26 OKIOFFICE 44 Serv Man P N 59276801 6 15 Service Code 1 The service code can be printed on Activity Report to recognize the result of each communication 2 The activity report indicates the code 0000 should a communication terminates on normal status as a service code 3 The activity report indicates one of the codes of 90XX should a communication terminates on abnormal status as an error code 4 Besides the above codes of 9
135. ate and time at the top of the received page OFF ONCE ALL selectable Note Set at receiver TSI print Switches the function of printing TSI data from re mote fax onto the received pages TSI is printed at the leading edge of first reproduced copy Set at re ceiver When TF04 is set to ALL TSI is printed for the all received pages ON Enable OFF Disable Reference TSI Transmitting Subscriber Identification Installation Procedure 2 19 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 2 7 Specifications Default No toner memory reception Enables or disables the memory reception when the fax is in no toner condition ON The messages are printed when toner has been newly supplied or an operator per forms the memory operation OT10 The messages are printed in the print mode But print quality is not guaranteed TAD mode Allows the OKIOFFICE to share a telephone line For external telephone answering de with an answering device vice TAD mode is of two types TYPEI TYPE2 NOTE OFF TYPEI TYPE2 selectable If the REMOTE RX Function is setto TYPEI means a value other than OFF that code can 1 RING comes be used to force FAX RX during TAD 2 The TAD answers returns the recorded voice Mode message in TAD to calling party The FAX machine will continue to detect CNG signal while TAD works If the FAX machine detects CNG signal t
136. ates to form the electrostatic latent image corresponding to the image signal LED head Charge roller High voltage power supply image drum Print Operation Description B 8 LED head Image drum Paper OKIOFFICE 44 Service Manual P N 59276801 Development The electrostatic latent image on the surface of the image drum is changed to a visible toner image by applying a toner to it Development is performed in the contact part between the image drum and developing roller Developing blade Charge roller Sponge roller Developing roller Image drum 1 The sponge roller negatively charges a toner and applies it to the developing roller 2 The toner applied to the developing roller is thin coated by the developing blade 3 A toner adheres to the exposure part of the image drum in the contact part between the image drum and developing roller This causes the electrostatic latent image to be changed to a visible image Print Operation Description B 9 OKIOFFICE 44 Service Manual P N 59276801 Transfer The transfer roller is composed of conductive sponge material This roller is set so that the surface of the image drum and sheets of paper will adhere closely A sheet of paperis placed on the surface of the image drum and the positive charge opposite to the negative charge of a toner is applied from the reverse side by the transfer roller When a high negative voltage is applied from the power s
137. ax disconnects the line when EOL can not detect within T2 timer Selects the 3 digit timer 001 to 255 selectable in 100 ms steps For example 060 x 100 ms 26s DIS bit 32 Specifies whether to transmit a bit 32 in DIS ON Transmits a bit 32 OFF Disable Note Disable only if communication compat ibility problems occur with older remote machine Error criterion Registers the threshold value whether to transmit RTN or MCF signal when the error occurs in received data 00 to 99 selectable in one percent steps Off hook bypass Allows two OKIFAX machines to be connected back to back for testing purposes ON Enable OFF Disable NL equalizer Selects equalization for the following cable lengths 0 km 1 8 km 3 6 km 7 2 km selectable Note Relative to 1700 Hz for length of 0 4 mm diameter cable Installation Procedure 2 22 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 5 7 Specifications Default Modem attenuator Adjusts the attenuation dB for the transmit signal power level Adjusting value is 0 to 15 dB in one dB steps Since the maximum send signal power level dB of the fax is at 0 dB you can select 0 dB to 15 dB in one dB steps for the send signal power level 0 to 15 dB selectable The send signal power level should meet your country s regulation Some countries may specify the power level at a telephone exchange In that case you should
138. ber Troubleshooting 7 25 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Troubleshooting 7 26 OKIOFFICE 44 Service Manual P N 59276801 7 1 19 Multiple Document Feeding Definition Multiple document feeding Multiple documents are not separated and they are fed at the same time during one feeding operation Start i N The leading edges of o Mass the documents are aligned Yes Yes The separation rubber Clean it is dirty No After pushing the No separation rubber assembly Check the ADF spring does it return to the the tension arm and the original position back up plate Yes Replace the separation rubber Yes Solved Y Check the roller ADF Return to section 7 1 1 assembly Troubleshooting 7 27 OKIOFFICE 44 Service Manual P N 59276801 7 1 20 Document Skew Start 1 Set the guides to meet the document width 2 Load the documents straight along the guides Are the document guides set to meet the document width Are the documents straightly loaded along the guides The documents have Bii the same width Load documents by meeting the same width Yes The thickness of the document No 0 08 to 0 13 mm 003 to 005 Multiple doc 0 06 to 0 15 mm 039 to 006 Single doc Use documents of the lef
139. board is turned off to cut the supply of H5V to the high voltage power supply circuit As a result all high voltage outputs are interrupted At the same time the CVOPN N signal is sent to the control board to notify it the off state of the microswitch and the control board performs the cover open processing Board Descriptions A 49 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Board Descriptions A 50 OKIOFFICE 44 Serv Man P N 59276801 A3 7 UNC5 NCU Circuit Diagram Note The relationship between NCU and optional boards NTIF TEL HOOK etc are shown in A3 11 1 Block diagram Figure A3 7 1 shows a block diagram of UNCS circuit 2 General functions of this circuit are as follows 1 2 3 Board Descriptions Generates and detects signals to be exchanged with a telephone exchange or network in Phases A and E defined by ITU T 30 Loop formation for call origination e Line current detection see note 1 before call origination Dial tone detection see note 1 Generation of dial pulses see note 2 Busy tone detection see note 1 Ringing signal detection Sends various data and signals from the RA4 M17 board to the telephone line after amplifi cation e Picture data Protocol Tonal signals PB tone etc Sends the following signals received from the line to the R44 M17 board as data after amplification Picture data Protocol Tonal signals etc Note 1 This
140. ch will assist you in conducting unit level maintenance Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord discon nected before removing the Main Cover for service In the event that it is neces sary to troubleshoot the unit with the Main Cover removed with AC power sup plied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Do Not You may be subjected to high voltage electric shock by touching the Touch following parts without an insulating material HIGH VOLTAGE a High voltage unit b Contact ass y Board Descriptions A 1 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Board Descriptions A 2 OKIOFFICE 44 Service Manual P N 59276801 A1 1 Unit Configuration and Block Diagram 1 The unit configuration of the OKIOFFICE 44 is as follows OKIOFFICE 44 OKIFAX 4100 ASSEMBLY Cabinet Assy Board NCU 2 Board CTR PC Interface Board TLHV OLHV 5 Board R44 1 Board FX048PSU 5 Figure A 1 1 1 Unit Configuration of OKIOFFICE 44 1 Main control board R44 2 Network
141. control unit NCU 3 PC interface board CTR option 4 Memory board MEMO option 5 Power supply unit 048 POW OLHV TLHV 6 Operation panel board 04W 7 Optional board Telephone interface board TEL e Hook board HOOK Board Descriptions A 3 OKIOFFICE 44 Service Manual P N 59276801 yun ddns Jamod qns Aq pojonpuoo yorma nono y uondo TAL ayeys qpuejs v JO ouin oq je Ld Jayvods ASt ans dIN V pieoq Apddns 1amod o3e3 oA ugTH AH TO AHTTIL uado 19407 1osu s 19U0 J JOSUdS PMO JOSUOS JUM JOSUOS Jopo9 enue A LZ LV enBr4 wesbeig Y42019 pp32133O DIO AO0vC OCD OV xun Arddng 190g 93e3 0A MO T K ddng 1amog oSvej OA QSTH INO 9NO NSd8rOXA K ddng 1490q TUMS UP ASt AS NOOV DEEE 013289 TIS HSVTA 983 ZIS Paros WON Xt 3381 04 431H T SH Dy SVN v VOOI sdqy pv INHGOIN 82I TX 7HINCI r6c X TOI HF ld It AS HS lt t F soreuy onuoo XLU yams Ady Pz VING uod O I uonelouos So 8X TA TIS WYA UINVA ZH389 I X Tonuo P87 Te1oudrioq p VDOI onuooyejep sse1pp v ojo snq J I t8C
142. d No Replace the EP unit X Yes Solved y No Replace the PWU HV Board OKIOFFICE 44 Service Manual P N 59276801 14 Poor Fusing Poor fusing Is the paper OKI DATA No Use paper of OKI DATA specified grade specified grade Yes Is the Bias No spring normal Replace the pressure roller spring Tension 2 5 kg Yes Adjust for proper contact between the fuser unit and the contact assembly Is there proper contact between the fuser unit and the contact assembly Yes Check the thermister the heater inside the fuser unit R44 board and Power Supply Unit Troubleshooting 7 48 OKIOFFICE 44 Service Manual P N 59276801 Section 8 Dipswitch Settings 8 1 General Information The OKIOFFICE 44 does not have any dipswitches Dipswitch Settings 8 1 OKIOFFICE 44 Service Manual P N 59276801 Rev 2 This page was intentionally left blank Dipswitch Settings 8 2 OKIOFFICE 44 Service Manual P N 59276801 Appendix A Board Descriptions PREFACE This appendix provides basic information concerning the electric section for the component level maintenance of the OKIOFFICE 44 It includes such information which will help maintenance personnel to understand the circuit operations This appendix will also provide the reader information concerning the functions of units and the relation ships among the units whi
143. d or open and close the Top cover Assembly Reconnect AC power cord Does the CHANGE No DRUM message See ACTION 3 remain on display Yes Is the R44 Board mounted properly Mount i properly Yes Y See ACTION 4 Troubleshooting 7 34 OKIOFFICE 44 Service Manual P N 59276801 3 Engine Controller Error Engine controller error ROM RAM error PRINTER ALARM 2 Detach the AC power cord Reattach the AC power cord Does the PRINTER No ALARM 2 message See ACTION 5 remain on display Yes Open and close the Top Cover Assembly See ACTION 6 Troubleshooting 7 35 OKIOFFICE 44 Service Manual P N 59276801 4 Fuser Unit Thermal Error Fuser unit thermal error PRINTER ALARM 4 Detach and reattach the AC power cord Is the PRINTER No ALARM 4 message See ACTION 7 displayed with a delay Yes About 60 seconds later See ACTION 6 Detach and reattach the AC power cord Open and close the Top Cover Assembly Is the fuser unit heater No off See ACTION 7 Yes Yes Is the heater Replace the heater unit wire broken See ACTION 9 No Y See ACTION 8 Troubleshooting 7 36 OKIOFFICE 44 Service Manual P N 59276801 5 Paper Jams Trouble
144. d uniformly by applying the DC voltage to the charge roller Exposure Light emitted from the LED head irradiates the negatively charged surface of the image drum The surface potential of the irradiated surface attenuates to form the electrostatic latent image correspond ing to the image signal Development and residual toner recovery The negatively charged toner is brought into contact with the Image drum adhering to the electrostatic latent image on the image drum by static electricity This adhesion causes the electrostatic latent image to change to a visible image At the same time the residual toner on the image drum is attracted to the developing roller by static electricity Transfer When paper is placed over the image drum surface the positive charge which is opposite in polarity to that of the toner is applied to the reverse side by the transfer roller The toner is attracted by the positive charge and is transferred onto the paper This results in the transfer of the tonerimage formed on the image drum onto the paper Cleaning The cleaning roller temporarily attracts the residual toner on the transferred image drum with static electricity then returns the toner to the image drum Fusing The transferred unfused toner image is fused to a sheet of paper by applying heat and pressure to the image Figure B1 3 is a flow for the electrophotographic process Print Operation Description B 4 OKIOFFICE 44 Service Manual
145. drive gt A FD F10 Execute 12 10 1996 18 53 Operator ID scrn xxxx Now select the destination drive Press Space to change the drive name Select Terminate to stop processing and return to the TEL directory menu screen Select Execute to copy user information between the drives and return to the TEL directory menu screen RMCS System G 14 OKIOFFICE 44 Service Manual P N 59276801 3 3 Main Menu The main menu screen varies according to FAX models For further operation refer to each FAX model F1 TEL directory Ee i AX mode F2 Set the TEL number TEL number lt lt MAIN MENU gt gt manual Initialization of FAX File LOAD Center to FAX File SAVE Center from FAX EDIT ON LINE File EDIT OFF LINE Testing Environment setting Terminate Please select the desired item 12 10 1996 18 58 Operator ID scrn xxxx There are two ways to specify an item select by using the T and keys then press Enter or enter the number before each item Detail on Environment Setting is described later Submenus can also be specified by using the function keys Press F1 to return to TEL directory menu screen Press F2 to display the TEL number setting screen when you want to change the number registered into the user information file temporarily 3 4 Environment Setting User ID F1 Return to the main menu pax model TEL number lt lt ENVIRONME
146. duct Service Bulletins are distributed via OKIDATA s Web Site Faxable Facts and OKILINK II Use this section to store any hardcopy Product Service Bulletin information you may obtain from these sources OKIDATA s Web Site OKIDATA s Web Site provides easy access to OKIDATA s product and service information The Business Partner Exchange BPX provides Dealer Only information to OKIDATA s sales and service providers The information covers ALL OKIDATA products and is constantly updated OKIDATA s Web Site address is www okidata com Faxable Facts OKIDATA s Faxable Facts is an automated fax document retrieval system It is maintained by OKIDATA s Customer Service and Support Group A wide variety of information is available through Faxable Facts It is frequently updated You must use a touch tone telephone to contact Faxable Facts and have your fax number ready when you call An automated attendant will prompt you through the steps in using Faxable Facts The contact number for Faxable Facts is 1 800 654 6651 OKILINK II OKILINK II is OKIDATA s Bulletin Board Service This service is available to all OKIDATA Certified Service Technicians OKILINK II provides additional troubleshooting and service information Techni cians can download files ask questions of OKIDATA s technical support personnel and participate in round table discussions about OKIDATA products and services Product Service Bulletins Recom mended Spare Parts Lists Pr
147. duction printing Reduction rate is from 100 to 75 Legal to Letter 26 Smoothing printing In case of 3 85 mm 7 7 mm 27 Programmed key operation F key OT key 28 Auto dialing One touch dialing 10 locations maximum of 32 digits each location Two digit automatic dialing 45 locations maximum of 32 digits each location Keypad dialing Chain dialing Mixed dialing Group dialing 5 dialing groups maximum of 55 locations each group 29 Realtime dialing In case of optional handset is installed or Hook key 30 Automatic pause signal insertion 31 Manual feeder local copy 32 Telephone directory Alpha search dialing 33 TEL FAX automatic switching 34 Time and date printing 35 Closed users group Direct mail rejection 36 Transmission contrast and resolution control 37 Key touch tone 38 Printer counter display For drum toner total print 39 Total page counter Scan 40 Quick scanning Not available for the OKIOFFICE 44 General Information 1 5 Service Manual OKIOFFICE 44 P N 59276801 41 Date and clock adjustment 42 PC interface Standard 43 Language selection 2 languages LCD and Reports English Spanish English French 42 Fax forwarding Not available for the OKIOFFICE 44 44 Reports Activity report Protocol report Service man setting Message confirmation report Single address or multiple addresses Broad cast entry report Broadcast
148. e Length EW Effective Width T Top Margin B Bottom Margin L Left Margin Printing area R Right Margin Recording paper feed direction These tables do not F050 C1 001 include vertical and horizon tal addressing deviations or 2 mm of recording paper 1 Printable area NA LETTER SIZE ISO A4 SIZE 14 inch LEGAL SIZE 13 inch LEGAL SIZE inch mm inch mm inch mm inch mm 11 279 4 11 7 297 14 355 6 13 330 2 8 5 216 8 27 210 8 5 216 8 5 216 10 76 273 4 11 46 291 13 76 349 6 12 76 324 2 8 0 203 2 8 0 203 2 8 0 203 2 8 0 203 2 0 12 3 0 12 3 0 12 3 0 12 0 12 3 0 12 3 0 12 3 0 12 0 25 6 35 0 13 3 4 0 25 0 25 0 25 6 35 0 13 3 4 0 25 0 25 Guaranteed printing area NA LETTER SIZE ISO A4 SIZE 14 inch LEGAL SIZE 13 inch LEGAL SIZE inch mm inch mm inch mm inch mm 11 279 4 11 7 297 14 355 6 13 3302 8 5 216 8 27 210 8 5 216 8 5 216 10 5 266 7 11 2 284 3 13 5 342 9 12 5 317 5 8 0 203 2 7 71 197 3 8 0 203 2 8 0 203 2 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 0 25 6 35 General Information 1 12 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 5 11 Basic Performance Specifications Item Specifications Copy stacking The fax can discharge printed copi
149. e picture Pressed STOP key T1 time out T2 time out T3 time out No recording paper Document jam 60 minute or 70 minute time out Document length has exceeded its maximum limit Recording paper jam Received DCN Picture memory hash error Document removed prior to transmission Normal or error free lines not received for 13 seconds Error frame protocol received Hardware error in transmission system response of modem not detected ENCODER error Picture storage fault Option 2 nd tray error Fan motor error Fuser error Recording paper size error Cover open Cleaning and Maintenance 6 29 OKIOFFICE 44 Serv Man P N 59276801 2 This page was intentionally left blank Cleaning and Maintenance 6 30 OKIOFFICE 44 Serv Man P N 59276801 Section 7 Troubleshooting 7 1 Overview This chapter contains a Troubleshooting flow charts related to general operations b Troubleshooting flow charts by test operations c Troubleshooting flow charts placing an emphasis on mechanical portions Section No Name of Flow Chart a b c 7 1 1 Overall troubleshooting flow chart X X 7 1 2 No LCD operation X 7 1 3 ALARM LED on X 7 1 4 Printing test failure X X 7 1 5 No local copy X X 7 1 6 Auto dial failure X 7 1 7 Transmission problem X 7 1 8 Auto reception failure X 7 1 9 Reception problem X 7 1 10 Sensor calibration test X 7 1 11 LED test X 7 1 12 Tone send test X 7 1 13 High spe
150. ed Parts List Spring TC 40026101 RSPL OKIOFFICE 44 Service Manual P N 59276801 Section 1 Cabinet Assembly 2 2 Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 1 Table Cabinet Assembly 2 2 Oki parts Number Description OKIDATA P N 40024001 Guide Paper U 40024001 RSPL 4PP4083 6168P001 Spring Head 50928701 RSPL 40024101 Guide Paper L 40024101 RSPL 4PB4120 1136P001 Screw Knob 50317601 RSPL B Tapping Screw N A B Tapping Screw FA N A B Screw B N A Screw N A Screw N A 40140801 Bracket Damper 40140801 RSPL 40148201 Gear Damper 40148201 RSPL 40025701 Tray Document 40025701 RSPL 40025801 Tray Paper 40025801 RSPL 40375801 Stacker Assy Document 40375801 RSPL Screw Tapping S M2 N A 223A7010P0003 TM 6 DC1 Connector Plug 40123402 Dust Cover Plate Assy PC I F 53 4PP4120 1187P001 Plate Earth PCFX 54 40332701 Label Manual Slot Illustrated Parts List D 5 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Printer Unit Illustrated Parts List D 6 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Table Printer Unit Oki parts Number Description OKIDATA P N N A Printer Unit Assembly See Section 11 4YA4130 1004G1 PCB High VOIt P S 55080401 RSPL Screw F N A
151. ed modem test X 7 1 14 MF Tone send test X 7 1 15 Tone TEL FAX send test X 7 1 16 No acoustic line monitor X 7 1 17 Power supply unit X 7 1 18 No document feeding X 7 1 19 Multiple document feeding X 7 1 20 Document skew X 7 1 21 Document jam X 7 1 22 Printer unit Troubleshooting OKIOFFICE 44 Service Manual P N 59276801 Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Troubleshooting 7 2 OKIOFFICE 44 Service Manual P N 59276801 7 1 1 Overall Troubleshooting Flow Chart NOTE R44 Board for OKIOFFICE 44 is designated as the MCNT Board in this flowchart Start Go to 7 1 2 No LCD operation Go to 7 1 3 ALARM LED on No LCD works gt Yes Yes ALARM LED lights gt No Key operation activates No gt the unit Pressing SELECT FUNCTION key causes Replace R44 and or OPE O4
152. ed signals of Modem R44 29 4912 MHz IC8 ADO to AD7 f LE P Alto A7 E CPU MDINTI N MDRST N IC2 MDCSI N MDMRD N IOGA MDMWR N NCU i 4 ICI2 CNIO CN3 7 S A8 B8 s gt i p gt R A6 B6 R IC12 Modem 14 4 kbps Board Descriptions Figure A3 1 6 Related Signals of Modem A 28 OKIOFFICE 44 Serv Man P N 59276801 A3 1 7 R44 Circuit Diagram i Block diagram The circuit diagram consists of connector CN14 that provides an interface between R44 board and LED print head Figure A3 1 7 shows the related signals and block diagram of LED print head 2 Function Data of 1664 LEDs on the LED print head is loaded into the shift registers by the HCLCK 1 0 MHZ signal After the 1664 bit 208 mm data is loaded in the shift registers it is then loaded in the latch circuit by the HLATCH signal The turning on and off of the LEDs are controlled by STRBI N to STRB4 N signals LED head interface signals output from IOGA1 HDATAO Print data i e data to be printed HCLCK Transfer clock for print data 4 0 MHz HLATCH Latch signal for print data STRBI N to STRBA N LED head strobe signals R44 LED print head a CNI4 HCLCK 1 0 MHz
153. egistration of telephone number for the call back message Default Blank Operations The display shows e To begin press SELECT FUNCTION E key once and one touch key No 9 in the SELECT FUNCTION OT standby mode MEMORY AVAIL 100 with no message in memory Press OT9 Cd 1 FUNC PROGRAMMING YES NO 2 1 4 4 e Enter 4 using the ten key pad 1 4 SYSTEM DATA PRG YES NO 2 1 4 e Press key c Y d NO lt TSI CS gt ID lt SENDER ID gt 3 SEC LATER Y y NO ID 03 3 Y yNO 03 3404 7123 ID Example START ID eon 3404 7123 l NUMERAL KEY gt To the next page Note Use the UNIQUE key to input special symbols Installation Procedure 2 58 OKIOFFICE 44 Service Manual P N 59276801 Operations The display shows Continued from the previous page Es 3404 7123 ID OKI e Press START key Example START NO lt CALL BACK NO gt T 3 SEC LATER NO 03 3404 7765 e Press START key Example nee 1 Installation Procedure 2 59 OKIOFFICE 44 Service Manual P N 59276801 2 9 9 Dial Parameters Settings Procedure The following shows the ca
154. eive mode 1 Auto receive mode 2 Manual receive mode 3 Telephone fax automatic switchover Installation Procedure 10 one touch keys are provided Maximum 32 digits for each location number In addition to an ordinary location number another alternate location number can be registered in to each one touch key Purposes of this alternate location number 1 Fax dial A fax number is registered as an alternate location number When a call to the first location number is not answered the alternate location number will be automatically dialled 45 different codes are provided Two digit location code 01 to 45 Maximum 32 digits for each location number With ten key pad Maximum 40 digits for one operation The number of dialling digits can be expanded by chaining any number of the types listed above Auto Dial Items 1 2 and 3 Type of dialling can be changed from pulse dial to tone dial halfway in dialling process The changing point is specified by using the key With the optional telephone handset Selectable by key operation Selectable by key operation Selectable by key operation The fax recognizes a fax call from a verbal call as follows If the fax detects a call with a CNG signal it starts an automatic document receive operation If it detects a call without a CNG signal it sounds the buzzer to indicate a voice call Operator can answer the call by lifting the telephone handset If he
155. electIn nAutoFd nStrobe nSelectIn DIR nAutoFd BREQ I BREQ O BACK I BACK O RD WRT CASL RMCS RD WRT CASL RMCS ADO AD7 ADO AD7 ADS ADIS SH7034 ADS8 ADIS EPM7064LC68 15 R44 CTR option Figure A3 1 14 Interface between R44 Board and CTR Board PC interface unit Board Descriptions A 37 OKIOFFICE 44 Serv Man P N 59276801 A3 1 12 R44 Circuit Diagram 1 Block diagram The circuit diagram consists of the following connector Connector CN6 that provides an interface between R44 board and power supply unit 2 Function 1 Sensor and switch control Five types of sensors are used in the printer as listed below All of their output enter IOGA ports for referring to and processing by the CPU Figure A3 1 15 shows sensors and switch control Inlet sensor 1 e Write sensor To detect the paper top position for printing Outlet sensor Toner end sensor Cover status switch The functions of various sensors are described in the following table Sensor Type Sensor Name Function PSIN1 N Inlet sensor 1 This photosensor is positioned before the resist roller to detect whether the paper has entered into the printer section WRSNS N Write sensor Detects the arrival of paper at designated position on the paper transport route inside the printer in order to turn on the light of the LED head 0 Paper exists 1 Paper does not exist PSOUT N Outl
156. er supply Print Operation Description B 11 OKIOFFICE 44 Service Manual P N 59276801 Transfer roller B1 3 Paper Jam Detection The unit monitors the paper status when the power supply is on and during printing In the following cases the unit interrupts the printing process as a paper jam Printing can be recovered by opening the cover removing the jammed paper and closing the cover Error Cause of Error Paper inlet jam Only the manual feed sensor detects Paper exists when the power supply is on The leading part of the paper does not reach the paper sensor although hopping operation was performed three time Paper feed jam The leading part of the paper does not reach the outlet sensor within a fixed time after it has passed the paper sensor Paper outlet jam The trailing part of the paper does not pass the outlet sensor within L mm after the leading part of the paper has passed the outlet sensor 2 52 64 mm L 15 77 400 6 mm Paper size error The trailing part of the paper does not pass the paper sensor within L mm after the leading part of the paper has passed the paper sensor 2 52 64 mm lt L 15 77 400 6 mm Paper Feed Check List Type of Error Supervisory Sensor Reference Value Electromagnetic clutch ON Paper sensor ON 63 8 Paper feed error Paper sensor ON Paper feed jam1 Outlet sensor ON 122 9 Bins ono Paper sensor ON 2 52 64 mm
157. eral Information Recommended Spare Parts Lists RSPLs contain the current part numbers descriptions pricing and stocking information for OKIDATA product spare parts The Recommended Spare Parts Lists are distributed via OKIDATA s Web site Faxable Facts and OKILINK II Use this section to store any hardcopy RSPL information you obtain from these sources OKIDATA s Web Site OKIDATA s Web Site provides easy access to OKIDATA s product and service information The Business Partner Exchange BPX provides Dealer Only information to OKIDATA s sales and service providers The information covers ALL OKIDATA products and is constantly updated OKIDATA s Web Site address is www okidata com Faxable Facts OKIDATA s Faxable Facts is an automated fax document retrieval system It is maintained by OKIDATA s Customer Service and Support Group A wide variety of information is available through Faxable Facts It is frequently updated You must use a touch tone telephone to contact Faxable Facts and have your fax number ready when you call An automated attendant will prompt you through the steps in using Faxable Facts The contact number for Faxable Facts is 1 800 654 6651 OKILINK II OKILINK II is OKIDATA s Bulletin Board Service This service is available to all OKIDATA Certified Service Technicians OKILINK II provides additional troubleshooting and service information Techni cians can download files ask questions of OKIDATA s technical s
158. es and stack them faceup Maximum sheets on the copy stacker 30 Note Oki Data recommended paper Scanning resolution Horizontal 8 pel mm Vertical Transmission mode STD 3 85 line mm FINE 7 7 line mm EX FINE 15 4 line mm COPY mode FINE 7 7 line mm EXFINE 15 4 line mm Image scanning method Letter size 1728 bit contact image sensor Contrast control 1 Automatic background sensing A continuous document background of 0 3 OD optical density or less will be transmitted as white 2 The LIGHT and DARK contrasts will automatically be ad justed to improve image quality Recording resolution Horizontal 300 dot inch Vertical STD 3 85 line mm FINE 7 7 line mm Recording system Electro photographic printing 1 211 3mm 2496 bit or 216 7mm 2560 bit LED print head Skew of recording paper Maximum allowable skew is or 1 mm over an advance of 100 mm 03937 inches over 3 937 inches Copy darkness 1 Black image Greater than 1 0 OD Optical density 2 White background Not greater than 0 2 OD Optical density Copy uniformity Printed copies will exhibit a uniform density of the printed and background area 1 From edge to edge 25 unit 2 From copy to the next copy 30 unit General Information 1 13 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 6 11 Basic Performance Specifications Item Specifications Recording paper running out Detected during print operation only Err
159. ess STOP key or end 1 4 TONE SEND TEST of the transmission 1100HZ SENDING SOM CML relay off 1 When the display indicates 2100Hz or 1100Hz SENDING you may extend the tone send test for 30 more seconds by pressing the START key Cleaning and Maintenance 6 15 OKIOFFICE 44 Serv Man P N 59276801 6 9 High speed Modem Send Test NOTE This procedure requires coordination with technical staff at the remote location In addition both locations must have a telephone handset connected to each machine 1 Purpose To check the telephone line quality in combination with a remote station programmed to the high speed modem receive test mode 2 Procedure Operations e To begin press SELECT FUNCTION key once COPY key twice and message in memory e Enter 5 e Press key e Set MODEM rate by e Press key ce key twice with no gt key All zero data will be continuously sent e After the test press STOP key 1 j 33 6K OKIFAX 5500 5600 28 8K OKIFAX 5500 5600 14 4K 12 0K 9 6KT V 17 4 lt 0 3K 2 4K c 4 8K 7 2K V 29 9 6K V 29 7 2KT V 17 The display shows IAGNOSIS NO 25 1 8 5 MODEM SEND TEST YES c NO 25 1 8 MODEM RATE lt 14 4K YES NO gt c Key 5 MODEM SEND TEST TX 14 4K 00 00 For detail see Fi
160. et sensor Located at the exit of the printer to supervise the paper exit operation 0 Paper exists 1 Paper does not exist TNRSNS N Toner sensor Detects the remaining toner in the toner cartrige The length of time of low toner state within fixed time interval detects a low toner state CVOPN N Cover open Detects whether the cover of the printer section is open or not sensor 0 Cover is open 1 Cover is close Board Descriptions A 38 OKIOFFICE 44 Serv Man P N 59276801 R44 OLHV CN6 CNI 45V IC2 sy COVER open switch CVOPN N 23 CVOPN N Ld sv IOGA la 16 WRSNS lt Write sensor 1 Outlet sensor rt PSOUT lt 19 Inlet sensor rt PSIN rt 2 TNR5N5 Toner end sensor PS1 PS2 PS3 PS4 1 1 1 1 3 3 3 3 7 7 7 7 I AV jV z 4 4 4 4 Board Descriptions Figure A3 1 15 Sensor and Switch Control A 39 OKIOFFICE 44 Serv Man P N 59276801 2 25 1 Fuser unit temperature control The heater in the fuser unit is controlled by the thermistor IOGA and CPU to keep the heater roller surface within a prescribed temperature range The CPU supervises the status of PCO A D converter input section periodically turning HEATON N signal on and off according to CPU of PCO status to exercise temperature cont
161. ete the facsimile model number 4 Update the password Nn Update the dip switches Delete the RMCS basic system End of the Menu 6 7 Each processing from 1 to 6 is described later RMCS System G 4 OKIOFFICE 44 Service Manual P N 59276801 2 2 1 Registering the RMCS Basic System The flow of new registration is different from that of updating First the flow of new registration is described below Remote Management Center System RMCS SETTING HARD DISK DRIVE C Press the Esc key to cancel Enter the drive No used to register the system Remote Management Center System lt lt RMCS SETTING gt gt HARD DISK DRIVE C DIRECTORY CARMCS Press the Esc key to cancel RMCS System G 5 OKIOFFICE 44 Service Manual P N 59276801 2 Enter the directory name with up to eight alphanumeric characters Remote Management Center System RMCS SETTING HARD DISK DRIVE C DIRECTORY CARMCS PASSWORD L Press the Esc key to cancel 3 Register a password of up to 15 alphanumeric characters excluding If the system operator is not defined password registration not required Remote Management Center System lt lt RMCS SETTING gt gt HARD DISK DRIVE C DIRECTORY C RMCS PASSWORD DIPSW ON 0 OFF 1 11000000 For RMCS Model 10 only Press the Esc key to cancel 4 When you use RMCS Model 10 set
162. g 6 9 1 33 6K and 28 8K are skipped for the MODEM without 33 6 28 8K bps function Cleaning and Maintenance 6 16 OKIOFFICE 44 Serv Man P N 59276801 High speed Modem Send and Receive Test Diagram Figure 6 9 1 TX Side RX Side Doa Ce Lo qis 5 MODEM SEND TEST 6 MODEM REC TEST YES NO 2 1 8 YES e NO 2 1 8 lt e Press lt key e Press S key CML relay operates CML relay operates The display shows S MODEM SEND TEST TX OO Training OO MODEM rate ad e g 9 6K means The display shows 9600 bps 6 MODEM REC TEST Test time RX OO XXXX minute second OO MODEM rate e Test time minute second All 0 Data ZZ e Press STOP key 3 7 CML relay goes off XXXX Error count lt o Press STOP key CML relay goes off Cleaning and Maintenance 6 17 OKIOFFICE 44 Serv Man P N 59276801 6 10 High speed Modem Receive Test NOTE This procedure requires coordination with technical staff at the remote location In addition both locations must have a telephone handset connected to each machine 1 Purpose To check the telephone line quality in combination with a remote station p
163. g number calls Reference TSI Transmitting subscriber identification CSI Called subscriber identification TX mode default Selects automatically the mode set up when a docu STD ment is loaded on the feeder Normal The following combinations are selectable STD NORMAL STD DARKSTD LIGHT FINE NORMAL FINE DARK FINE LIGHT EX FINE NORMAL gt EX FINE DARK gt EX FINE LIGHT gt PHOTO NORMAL gt PHOTO DARK PHOTO LIGHT STD NORMAL Telephone fax automatic switchover Specifies the time for which the fax alerts an operator time on reception of a call in the telephone fax automatic swichover mode 20 sec 35 sec selectable Refer to page 2 36 Ring response time Usercanregister ring response time if National codeis INT L GBR NOR SWE USA HOL ESP ITA GRE or GER Selects the ring response time 1 ring 5 10 15 20 sec selectable Distinct ring Specifies the detected distinct ring OFF ON SET selectable lst cassette paper size Selects A4 LETTER or LEGAL 13 LEGAL 147 LETTER OTHER when installing Bi Centro board by this function The operator must select the preferable paper size as the machine cannot detect the paper size automati cally Installation Procedure 2 47 OKIOFFICE 44 Service Manual P N 59276801 User Function Program Settings Table 2 9 4 3 4 Specifications Default Not Used User language A choice of 2 languages for LCD and print message are available ENG English
164. git 1 to 4 Selection by YES NO keys or digit 1 to 8 SELF DIAGNOSIS SENSOR CALIBRATION LED TEST TONE SEND TEST MODEM SENDTEST MODEM REC TEST D MF TONE SEND TEST D TONE TEL FAX TEST p SERVICE BIT MONITOR CONT COUNTRY CODE TIME DATE PRINT TSIPRINT NO TONER MEM RX TAD MODE 08 2 TECHCICAL FUNCTION oo MDY DMY LONG DOC SCAN TONE FOR ECHO MH ONLY H MODEM RATE T1 TX T O VALUE T1 RX T O VALUE T2 T O VALUE 100 MS DIS BIT 32 ERR CRITERION OFF HOOK BYPASS NL EQUALIZER ATTENUATOR T F TONE ATT MF ATT RING DURA CML TIMING 100 MS HEAD STROBE HEAD WIDTH MEDIA TYPE TR LATCH CURRENT REAL TIME DIAL TEL FAX SWITCH 10 MS Selection by YES NO keys or digit 1 to 3 j L 1 ALL DATA CLEAR p 2 LOCATION DATA CLEAR 3 CONFIG DATA CLEAR Should be set to 1 for proper operation 2 17 OKIOFFICE 44 Service Manual P N 59276801 2 9 2 Technical Functions This section explains setting items generally conducted by service personnel not by users Table 2 9 1 shows the initial setting items and their purposes The default setting is different by the individual countries Each item can be accessed by entering the corresponding service number on Technical Function
165. grammable device is used for the main software program which is stored in EP ROM of the current OKIFAX Other than the function of EP ROM Flash memory is also used for the user data area instead of SRAM chips 512 KByte Flash memory x 1 FLS Used for work area report recording etc 2 Mask ROM 3 DRAM 512 KByte DRAM x 2 RAMI and RAM2 Used as follows Picture memory for the ECM send receive mode Picture memory for the memory transmission mode Picture memory for the retransmission mode Picture memory for the reception in memory Editing for report printing 4 Back up battery circuit The non rechargeable lithium battery supplies voltage to a real time clock IC at AC main interruption 5 Real time clock IC IC3 IC3 is a real time clock IC used as a timepiece to display the data and time in year month day hour minute and second units Its input output signals are the 4 bit data bus ADOO AD03 4 bit address bus A01 A04 and the control signals RTCCS MDMRD N and MDWR N which perform a CPU controlled read operation M D Y H M Data read and write operation M D Y H M Data setting Board Descriptions A 24 OKIOFFICE 44 Serv Man P N 59276801 gt AD00 to AD15 A01 to A18 gt RAMI DRAM CASH N CASL N p 512 KB RASI N FLS C Flash memory P 512KB RD N WRL N MASK 424N RP PP gt Mask ROM F
166. he fax will go into normal receiving mode Even though the fax does not detect CNG signal the fax will go to receiving mode in hook on condition TYPE2 means The function from No 1 to No 4 of upper TY PE2 are the same as TYPEI 5 If the fax does not detect CNG signal during working of TAD the machine will go to standby mode Real time dialing Enables or disables the real time dialling 3 types selectable OFF TYPE1 TYPE2 TYPEI Real time dialling is available when the optional telephone handsetis OFF HOOK TYPE2 Real time dialling is available when the optional telephone handset is OFF HOOK or HOOK key is pressed TEL FAX switching Enables or disables the TEI FAX automatic switch ing ON Enable OFF Disable Related item FP10 TF23 Installation Procedure 2 20 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 3 7 Specifications Default MDY DMY Switches LCD display and report print from month day year to day month year or vice versa MDY DMY selectable Long document SCAN Switches the function of transmitting long size docu ment more than 380 mm ON Unlimited 1 hour OFF 380 mm 14 96 inches Echo Protection Enables echo suppression for poor lines with echo usually during overseas transmissions This bit set ting controls the following features ON Enables Echo Protection OFF Ignore 1st DIS OFF CED DIS timer 75 ms Tone f
167. he level is selectable from 0 to 15 dB in one dB step Technical function No 23 Installation Procedure 2 26 OKIOFFICE 44 Service Manual P N 59276801 TEL FAX Mode Flow Chart Calling Called Telephone call T s manual pars pity TEL FAX mode Indication of LCD transmission Ringing 14 14 T F o EL vsi lt CML ON sec A 2 cnc TEL FAX Detection Ring Back Tone Automatic Period Switch Over Time 20 35 sec LIFT HANDSET Y Load document lt CED Y NSF CSI DIS Press START lt AUTO REC START Button y OKI TOKYO RECEIVING 144 Manual i Transmission lt DCN lt CNL OFF 1 sec 1 sec B2sq L I L To detect CNG signal Notes a 2 53 Ring Back Tone 1 sec ON 3 2 sec OFF When you want to talk by phone pick up handset FAX communication if the CNG is detected during the period 4 LIFT HANDSET Installation Procedure FX050VP C2 018 The called party can send CED to the calling party immediately to start If the fax does not detect CNG signal during working of TEL FAX mode LCD display indicates OKIOFFICE 44 Service Manual P N 59276801 TAD Mode Flow Chart Type 1 Even though the fax does not detect CNG signal the fax will go to receiving mode To enable the manual TX mode Load document Press START button Manual transmission NOTE If the
168. he standby mode 1 For OKIOFFICE 44 t a FX048 C2 014 Note The OKIOFFICE 44 is NOT equipped with a AC power switch Installation Procedure 2 12 OKIOFFICE 44 Service Manual P N 59276801 27 Telephone and Line Connections 1 Procedure Connect the lines 1 For OKIOFFICE 44 PSTN or Exchange line Optional Handset Optional TAD or Handset FX048 C2 015 2 8 Packing for Shipment CAUTION When packing the OKIOFFICE 44 for shipment REMOVE THE IMAGE DRUM AND TONER FROM THE UNIT AND SHIP SEPARATELY Failure to do this will result in damage to the machine Installation Procedure 2 13 OKIOFFICE 44 Service Manual P N 59276801 2 9 Initial Settings 2 9 1 General Procedure of Key Operation Figure 2 9 1 shows the general procedure of key operation Installation Procedure 2 14 OKIOFFICE 44 Service Manual P N 59276801 Key Operation Flowchart STNDBY MODE n F Press the SELECT FUNCTION key COPY COPY ELECT FUNCTION OT Selection by One touch key B OTI DELAYED TX IPrg Start date 0 9 and start time 0 9 To technical program L or BROADCAST FEEDER TX 2 CONFIDENTIAL TX Enter 2 digit 0 64 RELAY INITIATE TX Prg Password 4 digit 0000 9999 amp Group No 2 digit 01 99 POLLING TX RX L ors REPORT PRINT gt Selection by YES NO keys o
169. ic Windows Truelmage and TrueType are trademarks of Microsoft Corporation OKILINK Il is a trademark of Oki Electric Industry Company Ltd ZIP Code is a registered trademark of the United States Postal Service Contents Section 1 General Information eene 1 1 1 1 General Perr OTA OG asum au aya saan EAN E AS 1 1 1 2 General User s FUNCION oae spass spia Haad UU EE EENE E tad ura Ua PERSE UE 1 4 1 3 General Maintenance URC Si u u ua u u acu QuR R Dcos acd bud DG or ae eo Mons Ud UNUS 1 7 1 4 General qui scu io MR 1 8 1 5 Basic Performance SpecHieati nsS u scuto dues Rude ioci de un basa cape uan andis aote eade 1 9 1 6 Reports and Ist uuu 20 Section 2 Installation UU aaa asa nadania innn 2 1 2 1 General Senp Information latencies wnat was ed avn stas a M eq ED sua as ere 2 1 2 2 MAIER Ies s MEC nut aa 2 3 2 3 LU npdoE IB acne umasha ela Mns m aeons pawa aao tua akapa aan 2 4 22 Unpacking tor OKTOBER E Blasco Mon pq edt uda iu ti UE RR UV Er RUE DUE UM 2 4 2 4 Check f Contents E 2 6 29 Installation ol AW4chiIentstuuu up RR uu u ua URN M RN D NM RM RU NU iN MUI 2 7 2 6 AC Cord COMMS tH DOPO 2 12 2 7 Telephone and Line Connections ceiros odi e D aru Rm DN d EIER eee 2 13 2 8 Packing for Sbipment v E E Ede 2 13 2 9 IG6i aloS etgnesu amu p a a MM ME MEM E IEIUNII 2 14 2 9
170. image sensor S IC2 Transistor EN LEDON VLED 10 VLED 24V TR9 TR10 A C j je 1S N Y N LEDs array IOGA 9 GLED GLED Rod lens array sensor LE 0 o j jr CCC CCC jJ j C C C rf C R lu J 1728 bit 216 mm C DD SDATA0 SDATAS MISP 6 MISP gt gt DCK 714 286 kHz 8 DCK Shift register amp analog switches Amplifier 3 5 V gt 5 V 8V gt 4 8V 2 5 7 0VA OVA Figure A3 1 5 Related Signals and Block Diagram of CIS contact image sensor Board Descriptions A 27 OKIOFFICE 44 Serv Man P N 59276801 A3 1 6 R44 Circuit Diagram 1 Block diagram The circuit diagram consists of Modem 14 4 kbps Modem consists the following functions Modulation demodulation Modulation type 1 ITU T Rec V17 14400 12000 9600 7200 bps for G3 picture data 2 ITU T Rec V29 9600 7200 bps for G3 picture data 3 ITU T Rec V27 ter 4800 2400 bps for G3 picture data 4 ITU T Rec V21 channel 2 300 bps for binary signals defined in ITU T Rec T 30 Automatic adaptive equalizer for G3 receive data with 300 bps data excluded Generation of signal tones PB tone multi frequency tone generation Detection of single tones D A converter for send data TX A D converter for receive data RX Amplitude equalizer for RX Selectable attenuation for TX Automatic gain control Figure A3 1 6 shows the relat
171. imilar signal flows The differences are The one line scanning processing speed of OKIFAX 5000 series is faster The EXSEED image processing LSI and SRAM dark light level correction data have been added to the OKIFAX 5000 circuits Copy Mode Figure A2 1 1 shows the picture signal route in local copy mode One line picture data is transferred to A D converter analog digital converter from the scanning unit CIS contact image sensor as an analog data After conversion from analog data to 6 bit digital data by A D converter the picture data is sent to DRAM line memory via IOGA by DMA Direct Memory Access Then the picture data is sent to IOGA again Here the picture data undergoes various kinds of picture processings IOGA and CPU and is converted to two level binary data black and white The one line binary data from IOGA is stored into DRAMs page memory When the data for one page has been stored in the DRAMs the data is read out from the DRAMs and sent to IOGA The data is converted into a serial data by the picture control of IOGA and transferred to the LED print head for printing as HDATA 0 1 Writing of data into the page memory is also possible during the printing operation Board Descriptions A 8 OKIOFFICE 44 Serv Man P N 59276801 ojejs Aqpurys v jo our ou 1e yun Apddns 1940d qns Aq pojonpuoo uSIuA ymor y uondoyTd L NON I L eV eunbi4 IeuBis eiunjoiq Ado AO0tC 0CT OV poq A
172. inter Drivers Product Specifications and Service Training Information are also available System Requirements for OKILINK II are listed below Asynchronous Communications Software set to 8 Data Bits No Parity 1 Stop Bit Asynchronous Modem up to 9600 BPS w error correction MNP V 42bis IBM Graphics ANSI Terminal Emulation The dial in number for OKILINK II is 1 800 283 5474 Product Service Bulletins H 1 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Product Service Bulletins H 2 OKIOFFICE 44 Service Manual P N 59276801 Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Product Service Bulletins H 3 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Product Service Bulletins H 4 OKIOFFICE 44 Service Manual P N 59276801 Appendix I Recommended Spare Parts List RSPL 1 1 Gen
173. it auto dial code Keypad dial number When multiple locations are specified for one broadcast 1 The fax can print a broadcast confirmation report if specified in operating sequence To program the mail box number 01 to 64 Confidential transmission Available remote station s mail box numbers OKIFAX 2400 2600 01 to 40 OKIFAX 1000 01 to 16 OKIFAX 1050 01 to 08 OKIFAX 2300 01 to 16 OKIFAX 2350 01 to 08 OKIFAX 2450 01 to 16 OKIFAX 5300 01 to 08 OKIFAX 5600 01 to 16 This function automatically originates a message call via relay key Relay broadcast initiate transmission station which must be equipped with OKIFAX 2600 Up to 99 locations To program relay password To enable or disable the relay report Polling TX Polling transmission reception The documents placed on the feeder can be collected by a remote station Polling RX The fax can collect documents from one remote station Report printing Activity report Broadcast message confirmation report Multi location Phone directory report Configuration report Serviceman report if service bit sets to ON Protocol dump report TF 01 Sets to on Service bit Log report TF 01 Sets to on Service bit Installation Procedure 2 42 OKIOFFICE 44 Service Manual P N 59276801 One Touch Key Program Settings Table 2 9 4 2 4 F OT TN Item Specifications Counter display clear The operation for displaying and clearing the print counters in five wa
174. key MF tone corresponding to the key pressed will be sent until the next key is pressed e After the test press STOP key Frequencies of MF tones are as follows 697 Hz 1209 Hz 697 Hz 1366 Hz 697 Hz 1477 Hz 770 Hz 1209 Hz 770 Hz 1366 Hz 770 Hz 1477 Hz 852 Hz 1209 Hz 852 Hz 1366 Hz 852 Hz 1477 Hz 941 Hz 1366 Hz 941 Hz 1209 Hz 941 Hz 1477 Hz t XO OO 1 O 2 Q L Cleaning and Maintenance 6 19 OKIOFFICE 44 Serv Man P N 59276801 6 12 Tone TEL FAX 1 Purpose To check the pseudo ring back tone of TEL FAX automatic switching 2 Procedure Operations The display shows e To begin press SELECT FUNCTION key once 1 SELF DIAGNOSIS COPY key twice and key twice with no YES NO 2 1 8 message in memory 8 e Enter 8 8 TONE TEL FAX TEST YES lt NO gt 1 8 Press E Key 8 TONE TEL FAX TEST TONE SENDING e After the test press STOP key Cleaning and Maintenance 6 20 OKIOFFICE 44 Serv Man P N 59276801 6 13 Protocol Data Dump Printing NOTE Technical Function 1 Service Bit must be set to ON to print the Protocol Data Dump 1 Purpose To analyze the transmitted received G3 protocol signals 2 Procedure Manual printout of the last communication a Manual printout Operations The display shows 14 14 FAX e Verify th
175. l P N 59276801 Section 5 Table Frame Assembly Scanner L z o Oki parts Number Description OKIDATA P N 40019301 Frame Scanner L N A 40019401 Lever PC1 40019401 RSPL 40019501 Lever PC2 40019501 RSPL 40019601 Roller Assy ADF 40019601 RSPL 40020201 Plate Earth ADF 40020201 RSPL 40020601 Piece Exit 40020601 RSPL 40020701 Spring Exit 40020701 RSPL 40127501 Connection Cord Speaker 40127501 RSPL coj oo 1 Oo O1 Cc5 nr5 4YB4120 1121P001 Sensor Contact Image 50410101 RSPL N A Plate Scanner L Plate Assy Scanner R N A 40020301 Gear Z95 14 40020301 RSPL 40020501 Spring Latch 40020501 RSPL N A Plate Assy Scanner B N A N A B Screw FA N A 40153801 Spring Reinforcement 40153801 RSPL 40025201 Gear Z38 40025202 RSPL 40024501 Spring CIS 40024501 RSPL 40019201 Frame Assemby Scanner 40019201 RSPL Illustrated Parts List D 13 Service Manual OKIOFFICE 44 P N 59276801 Section 6 Plate Assembly Scanner B Illustrated Parts List D 14 OKIOFFICE 44 Service Manual P N 59276801 Section 6 Table Plate Assembly Scanner B Oki parts Number Description OKIDATA P N N A Plate Scanner B N A 4YB4120 1137P
176. l display Board Descriptions A 6 OKIOFFICE 44 Service Manual P N 59276801 NCU Board UNC5 Conversion of receive data and receive signals to internal signal level Conversion of send data and send signals to external signal level Generation of dial pulses to telephone line Detection of ringing signal Detection of busy tone conjunction with Modem unit Detection of hook up signal Interface with telephone handset option Output of send data and send signals to telephone line Input of receive data and receive signals from telephone line Power Supply Unit 048 POW 120V 230V TLHV OLHV Board for OKIOFFICE44 Conversion of main alternating current to the following direct currents 5V DC power supply 8V DC 8V DC power supply 30V DC power supply Supplying of main alternating current to fuser unit Generation of medium voltages 300V 300V 400V 450V and 0V Generation of high voltages 1 35 kV 0 75 kV and 3 5 kV Memory Board Option Memory storage for ECM operations memory broadcast delayed broadcast etc CTR Board PC Interface Driver circuits HOOK Board Option Hook switch circuit TELU Board Option This is contained within the optional handset Speech network circuit Basic speech functions included Board Descriptions A 7 OKIOFFICE 44 Service Manual P N 59276801 A2 1 Signal Flow Explanation Note The OKIOFFICE 44 and OKIFAX 5000 series machines have very s
177. le X OFF S ON Image in MCF Sender ID Line monitor volume Buzzer volume Closed network IN MCF ES e NO gt R ES e VOLUME NO gt ER VOLUME ES lt NO gt ED NETWORK X ES NO gt gt Setting Toggle X OFF S ON gt Setting Toggle X OFF S ON gt Setting X Pd LOW 3 idis gt Setting Toggle X A HIGH id id gt Setting X Pa 3 RX gt add TX mode default 09 TX MODE YES EFAULT NO gt Mid NOTE 1 Setting RESOLUTION amp ORIGINAL Telephone fax automatic switchover timer M 10 T F TI X Y ES e ER PRG NO gt gt Setting Toggle X 20SEC 35SEC Ring response time ESPONSE VX ES e NO gt X IRING 3 05SEC 10SEC 39 15SEC 20SEC NOTE 2 Setting Distinct ring Installation Procedure INCTI VE RI NG Y ES lt NO gt 2 51 OKIOFFICE 44 Service Manu
178. le R Gear Idle 2R Gear R 1 1 1 1 1 1 1 1 51237501 RSPL 51238001 RSPL 51237401 RSPL 2PP4083 1181P1 Gear Idle M 51237701 RSPL 3PP4083 1189P1 Plate Earth A 51021501 RSPL 3PP4083 1188P1 Plate Slide M 51021401 RSPL 3PP4083 1182P1 Gear Idle P 51237801 RSPL 3PP4083 1183P1 Gear Idle 3R 51237901 RSPL 4PP4083 1165P1 Plate Tension 51022601 RSPL 3PP4083 1185P1 Gear Idle Heat 51238101 RSPL 4PP4083 1186P1 Gear Idle E A 91238201 RSPL 3PP4083 1187P1 Gear Idle E B 51238301 RSPL 3PP4083 1170P1 Shaft Drive E Eject 51113801 RSPL 4PB4083 1171P1 Roller Eject 53348601 RSPL 3PP4083 1141P1 Bearing Resistration Biro l Llj j jm 51609101 RSPL Illustrated Parts List OKIOFFICE 44 Service Manual P N 59276801 Section 11 Printer Base Frame Unit 2 of 2 24 Note 24 is a small part on item Illustrated Parts List D 26 OKIOFFICE 44 Service Manual P N 59276801 Section 11 Table Printer Base Frame Unit 2 of 2 Oki parts Number Description OKIDATA P N 3PB4083 1140P1 Roller Registration 53348301 RSPL 3PP4083 1151P1 Gear T 51237601 RSPL 3YB4083 1150P2 Roller Transfer 53348401 RSPL 4PP4083 1136P1 Spring Bias L Back UP Roller 50931701 RSPL 3PP4083 1161P1 Bearing BU
179. led country 1 to 6 minutes in one minute steps 1 to 12 minutes for FRE Dial tone detect Selects the dial tone detection ON OFF selectable ON Enable OFF Disable Busy tone detect Selects the busy tone detection ON OFF selectable ON Enable OFF Disable MF TONB or DP Selects dialling by multifrequency or dial pulse MF Tone Pulse Pulse dial rate Selects the dialling pulse rates for the line 10 pps 10 pps 16 pps 20 pps selectable Pulse make ratio Selects pulse dial rate 39 33 39 Pulse dial type Selects pulse dial type Normal N Normal N 10 N N 1 MF Tone duration Selects MF Tone duration 100 ms 75 85 100 ms selectable PBX line Selects PBX line ON OFF selectable ON PBX line OFF PSTN Flash Earth Normal Selects the PBX type to meet the exchange requirements NORMAL EARTH FLASH selectable PBX line origination types Auto start Enables or disables the function of dialing without pressing the START key in one touch dial and 2 digit auto dial modes ON Enable OFF Disable Access digit Prefix dialing digits with which PBX connects the fax to the public line OFF max 4 digit s selectable Digit Enable OFF Disable Not Used Installation Procedure 2 62 OKIOFFICE 44 Service Manual P N 59276801 2 9 10 Off line Tests Purpose Activate self diagnosis which includes Print test CPU ROM version printing CPU RAM check PROG version printing LANGUAGE version
180. line 1 Public switched telephone network PSTN 2 Private branch exchange PBX OT9 2 Line interface 1 Impedance 600 ohms balanced 2 Sending power level 0 dBm to 15 dBm range Adjustable in 1 dB steps TF 22 3 Receiving power level 0 dBm to 40 dBm range Type of document to be transmitted 1 Width Max 216 mm 8 5 inches Letter Min 148 mm 5 83 inches ISO A5 size Note Effective reading width is Letter 215 mm 8 46 inches 2 Length Min 128 mm 5 04 inches Max 356 mm 14 inches Long document detection 356 mm 14 inches or 60 minutes TF 11 To enable or disable the long document scanning An operator can turn the long document scanning feature on or off for each call in the operating sequence 3 Thickness Based on common bond paper a Multiple Page Feeding 0 08 to 0 13 mm 0 003 to 0 005 inches b Single Page Feeding 0 06 to 0 15 mm 002 to 006 inches 4 Shape Rectangular 5 Opacity Documents allowing less than 40 of the scanner source light to pass through them General Information 1 9 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 2 11 Basic Performance Specifications Effective reading width Communication Effective reading Document Width Mode Paper width width Copy size ISO A4 TX 208 mm oie G3 A4 8 19 inches Local Copy 200 mm 8 27 inches 7 87 inches Letter TX 215 mm 216mm 8 46 inches Letter i Local Copy 200 mm uus 7 87 inches
181. llowing screen is displayed REMOTE MANAGEMENT CENTER SYSTEM lt lt MESSAGE MODIFYING TOOL gt gt lt lt MESSAGE MODIFY gt gt 1 1 RMCS SYSTEM FAX MODELO FAX MODELI FAX MODEL2 FAX MODEL3 FAX MODEL4 FAX MODELS FAX MODEL6 FAX MODEL7 FAX MODEL8 FAX MODELO O00 O Un d UTJ Ou C PAGE UP PREVIOUS PAGE PAGE DOWN NEXT PAGE PLEASE SELECT THE FAX MODEL PRESS THE ESC KEY TO CANCEL Enter the key No indicated on the left of the model to modify Then the screen for file selection is displayed Press Page Up or Page Down to scroll the screen back to the previous page or up to the next page Press Esc to terminate the FAX model selection and return to the menu screen RMCS System G 16 OKIOFFICE 44 Service Manual P N 59276801 4 2 1 File Selection REMOTE MANAGEMENT CENTER SYSTEM lt lt MESSAGE MODIFYING TOOL MESSAGE MODIFY x x SCRN1000 TX SCRN2000 TX SCRN3000 TX SCRN4000 TX SCRN5000 TX SCRNI1010 TX SCRN2010 TX SCRN3010 TX SCRN4010 TX SCRN5010 TX SCRNI020 TX SCRN2020 TX SCRN3020 TX SCRN4020 TX SCRN5020 TX SCRNI030 OTX SCRN2030 TX SCRN3030 TX SCRN4030 TX SCRN5030 TX SCRN1040 TX SCRN2040 TX SCRN3040 TX SCRN4040 TX SCRN5040 TX SCRN1050 TX SCRN2050 TX SCRN3050 TX SCRN4050 TX SCRNS5050 TX SCRNI060 TX SCRN2060 TX SCRN3060 TX SCRN4060 TX SCRNS5060 TX SCRN1070 TX SCRN2070 TX
182. lock diagram The circuit diagram consists of the following function and connectors TAI Send motor driver Connector CNI that provides an interface between R44 board and the send motor Figure A3 1 12 shows the related signals of the send motor and fan motor 2 Function 1 Send motor rotation and chopper control Send motor drive signals are generated by the IOGA3 and output to send motor via TAI motor drive IC of this circuit Note a b The built in motor control circuit of IOGA3 consists of the following blocks Setting of the excitation operation Setting of the chopping operation Setting of the motor exciting method 1 2 2 1 phase excitation Send motor rotation control There are several cases of the rotation operation Forward rotation for feeding documents Case 1 Feeding document from hopper to the position where one line data is read Case 2 Feeding document while reading Case 3 Feeding document after a page has been read Send motor chopper control The purpose of chopper control is to reduce the current to the motor by setting the phase signal on and off intermittently when a time lapse exceeding a specific time occurs without a phase update R44 IC2 IOGA TAI SPHI PHS1 Send motor N SPH2 SPH3 PHS2 Send motor PHS3 drive y v Y Y a b SPH4 PHS4 1 2 phase excitation
183. ls of IOGA3 2 Functions IOGA3 is a newly developed LSI for scanning and printing control of the OKIOFFICE 44 IOGA3 contains the following functions Scanning sensor control Send motor control Various image data processing control for scanning data Strobe signals control for LED head Smoothing control for printing data Interface of the peripheral LSI optional memory and CPU 1 4 A4 image sensor Scanning lt Data address bus control M S motor 2 4 Data address bus lt Printer control LED head OST EX Various sensor JM Buffer 640 bytes Decoding RLE TIFF ACC32 200 300 converter smoothing 3 4 TLHV OLHV High voltage igh Data address bus lt High voltage controller power supply 4 4 CTR Bi Centro Data address bus lt Peripheral control lt dM VE 1284 control CS generation OPE unit I O port Speaker Related Signals of IOGA Figure A3 1 2 Board Descriptions A 23 OKIOFFICE 44 Serv Man P N 59276801 A3 1 3 R44 Circuit Diagram Block diagram The circuit diagram consists of Flash memory Mask ROM DRAM Real time clock IC and Back up battery circuit Figure A3 1 3 shows the block diagram of Flash memory Mask ROM DRAM and Real time clock 2 Function 1 Flash memory FLS1 Flash memory electrically erasable and pro
184. lutch is OFF When the clutch is ON Hopping gear Clutch plate When the clutch is on the hopping gear engages with the clutch plate to rotate the hopping roller When the clutch is off the hopping gear is separated from the clutch plate by the spring for resetting disabling the rotation of the hopping roller Print Operation Description B 6 OKIOFFICE 44 Service Manual P N 59276801 Printing and Warm up WH we Iriple gear Transfer gear Idle gear Planetary gear Hopping gear Ceara Pulse motor main Rotate the pulse motor main in the a direction The planetary gear rotates in the a direction dislocating its position in the a direction This causes the planetary gear to be separated from gear A The hopping gear will not rotate The triple gear and transfer gear rotate via the idle gear to drive the image drum unit Triple gear At printing Transfer gear Idle gear Planetary gear Pulse motor main The paper is further advanced in synchronization to the print data Print Operation Description B 7 OKIOFFICE 44 Service Manual P N 59276801 Charging Charging is performed by applying DC voltage to the charge roller that is in contact with the surface of the image drum High voltage power supply image drum Exposure Lightemitted from the LED head irradiates the negatively charged surface of the image drum The surface potential of the irradiated surface attenu
185. ly 4 21 OKIOFFICE 44 Service Manual P N 59276801 Reverse the disassembly procedure Idle gear heat Idle gear P Idle gear 3R Plate Side M Idle gear 2R he Earth plate Screw 1 CP4 1 Fig 27 4 1 3 13 Registration Roller 1 Disassembly procedure a First carry out procedure up to the point ofthe4 1 3 2 IDUnit Cover Rear Cover NCU and Cover MAIN b Move registration roller to the right and dismount it by lifting Two registration Registration roller bearings also come off at the same time Take care not to lose them Registration bearing CP4 1 Fig 28 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 22 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 14 Drive Shaft E Eject and Eject Roller 1 Disassembly procedure a First carry out procedure up to the point ofthe4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN b Remove two screws 1 from Cover Heat Assembly section 4 3 7 lift the heat assay and dismount idle gear E A and idle gear E B c Unlockand dismount drive shaft E Eject d Dismount two eject rollers Drive shaft E Eject Idle gear E B Eject roller Idle gear E A CP4 1 Fig 29 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 23 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 15 Heat Assembly This section explains how to dismount the heat a
186. m G 17 OKIOFFICE 44 Service Manual P N 59276801 4 3 1 Confirmation lt REMOTE MANAGEMENT CENTER SYSTEM gt lt lt MESSAGE MODIFYING TOOL gt gt lt lt MESSAGE SAVE gt gt SOURCE RMCS SYSTEM DESTINATION A FD PLEASE INSERT A FORMATED DISK THEN PRESS THE ENTER KEY TO SAVE PRESS THE ESC KEY TO CANCEL Select a drive with the Space key Since it is assumed that data is stored on a floppy disk you can select drive A or drive B When setup is ready insert a formatted floppy into the drive and press the Enter key then saving is initi ated Press Esc to terminate saving message and return to the main menu screen 4 4 Loading Message Model Selection Select MESSAGE LOAD on the menu screen the following screen is displayed REMOTE MANAGEMENT CENTER SYSTEM lt lt MESSAGE MODIFYING TOOL gt gt MESSAGE LOAD gt gt 1 1 RMCS SYSTEM FAX MODELO FAX MODELLI FAX MODEL2 FAX MODEL3 FAX MODEL4 FAX MODELS FAX MODEL6 FAX MODEL7 FAX MODEL8 FAX MODEL9 o OU E UD EDT PAGE UP PREVIOUS PAGE PAGE DOWN NEXT PAGE PLEASE SELECT THE FAX MODEL PRESS THE ESC KEY TO CANCEL Enter the key number indicated on the left side of the model with a message reset Press Page Up or Page Down to scroll the screen back to the previous page or up to the next page Press Esc to terminate the FAX model selection and return to the menu screen
187. mbly Plate Assembly 4 1 3 12 4 1 3 17 1 Plate SideM Hopping Gear Idle Shaft Assy 4 1 3 13 gt Registration Roller Disassembly 4 5 OKIOFFICE 44 Service Manual P N 59276801 Whole Unit Picture FX048 CP4 1 Fig 01 Disassembly 4 6 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 1 LED Print Head Two LED print heads are available 208 mm 8 18 inch width or 216 mm 8 5 inch width 1 Disassembly procedure Q a Open the cover assembly top by raising the cover in the direction of the arrow b Disconnect the PC connector from the LED print head c Remove the LED head while spreading the left clamp on the cover assembly top Note Be sure not to touch directly or push the SLA part of the print head Reassembly procedure Reverse the disassembly procedures Note After replacing the LED print head set drive time of the LED print head follow ing the marking Refer to section 5 1 When you replace the LED print head if the width of the LED head to be used is changed from current version you should select the head width by the service personnel initial setting Refer to table 3 9 1 TF No 27 and 28 Disassembly Cover assembly top CP4 1 Fig 03 LED head _ PC Connector CP4 1 Fig 04 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 2 Image Drum and Covers Rear NCU Main and NCU Board Service Caution Cover assembly top The High Voltage
188. moving the three sal CP4 1 Fig 19 h Remove the Plate Scanner B by removing the two screws and the part of the fixing hooks i Remove the CIS contact image sensor Disassembly 4 13 OKIOFFICE 44 Service Manual P N 59276801 j Motor S Remove the Motor S by removing the connector of motor and the two screws 1 Connector Motor S k Photo Sensor PC1 PC2 Screw 1 After disconnecting the two connectors remove CP4 1 Fig 19 the photo coupler sensors PC1 and PC2 on the Plate Scanner B by pressing the latch using the flat screwdriver or like 2 Reassembly procedure Reverse the disassembly procedures Plate Scanner B 4 1 3 6 Board R44 OKIOFFICE 44 Power Suppl PCI CP4 1 Fig 20 Disassembly 4 14 OKIOFFICE 44 Service Manual P N 59276801 Rev 2 1 Disassembly procedure a b c d e 2 Reassembly procedure Disassembly Screw Unit First carry out the disassembly procedure up to the point of the 4 1 3 2 Cover Rear Cover Main etc Board R44 Disconnect all connectors Remove the five screws and remove the Board R44 CP4 1 Fig 22 OKIOFFICE 44 Power Supply Unit Disconnect all connectors Power Supply Unit Remove the screws and remove the OKIOFFICE 44 Power Supply Unit Reverse the disassembly procedures CP4 1 Fig 21 OKIOFFICE 44 Service Manual P N 59276801 Rev 2 4 1 3 7 Option Board Memory MEM Board CTR PC
189. mpletion of connection with a remote station Document feeds but no document is received at remote station Set MH ONLY Technical function No 13 to ON Yes Solved Set HIGH SPEED MODEM RATE Technical function No 14 to 4800 bps Yes Solved gt No Step 3 Adjust send signal power level Technical function No 22 Yes Solved No Step 4 Set ECHO PROTECTION Technical function No 12 to ON Yes Solved Return to section 7 1 1 Troubleshooting 7 10 OKIOFFICE 44 Service Manual P N 59276801 I Test other fax machine under the same conditions especially concerning Step 1 4 No os they transmit normally Yes Check the line and the network The hardware of the troubled fax machine may be damaged Go to 7 1 13 High speed Modem Test to localize the cause Even if the high speed modem test results in success 300 bps signal route remains unchecked In that case the most suspected unit is RA4 Board Description Protective tone is 1700 Hz 200 ms This signal is added to training signal to protect the training signal against echo as follows x ORI 7 BEND eared Protective tone message signal 1700 Hz 200 ms Troubleshooting 7 11 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Troubleshooting 7 12 O
190. munication mode Rev 2 CALLING Transmission CALLED Reception NG or MEMORY RX B C Broadcast BOX XX Confidential reception FWD R Fax Forwarding RX FWD T Fax Forwarding TX 10 Number of transmitted pages or received pages 11 Result code OK Note1 NO STOP Note 2 BUSY PAPER Out of recording paper S_JAM Document jam R JAM Recording paper jam COVER COMP Completion of a broadcast PUNIT Printer Alarm CANCL Confidential reception T O Note 1 The following cases are included Unmatched handshaking to the received NSF Unmatched password to the received NSC in the polling transmission mode Note 2 The following cases are included The STOP key is pressed The memory cancellation operation removes the message from the active memory files 12 Service code General Information 1 27 OKIOFFICE 44 Service Manual P N 59276801 Message Confirmation Report Format 1 2 Example 0 MESSAGE CONFIRMATION 2 07 01 96 08 05 3 ID OKI 4 5 6 7 8 9 10 DATE S R TIME DISTANT STATION ID MODE PAGES RESULT 07 01 00 20 OKI FAX CALLING 02 OK 0000 F050 C1 008 1 2 General Information 1 28 OKIOFFICE 44 Service Manual P N 59276801 Message Confirmation Report Format 2 2 Example 1 Q 3 4 5 6 7 8 9 a MESSAGE CONFIRMATION 2 07 01 96 17 05 3 ID OKI 4 5 6 7 8 9 10 DATE S R TIME DISTANT STATION ID MODE PAGES RESULT 07 01 00 20 OKI FAX B
191. n you hear dial tone when hn lifting up your handset Yes 1 Check the line cable 2 Check the exchange y Check pulse dial tone dial dial rate etc Check closed network Note 1 conditions Do they dial automatically Yes Yes DIALING on LCD No TELEPHONE BUSY on LCD Yes Hang up external telephone set Yes Solved No No No Others cannot dial automatically either gt lt Replace NCU Board Yes Solved No Y Replace R44 Board lt Y Return to section 7 1 1 Troubleshooting No Only specific locations Each location causes the problem Yes Check the following items Off hook bypass OFF TF No 20 MF DP Dial parameter DP rate Dial parameter DP make ratio Dial parameter Dial type Dial parameter Other dial parameters Note TF Technical function Yes Solved Check the following items Programmed one touch keys Programmed two digit auto dial code Note 1 f you do not have any other fax machine OKIOFFICE 44 for testing follow this route Then if the problem is unsolved return to the main route Note 2 NCU Board is shown as UNC for US version OKIOFFICE 44 Service Manual P N 59276801 7 1 7 Transmission Problem This section explains how to localize the cause of problems occurred after co
192. nd decoded by the CPU and written into the DRAM The written data is interpreted according to bit assignment of the binary procedural signals in the ITU recom mendations The successive modes of communication for example line density encoding scheme etc are determined Board Descriptions A 16 OKIOFFICE 44 Serv Man P N 59276801 e ZV e1n813 jeuBis enieoeg sdq ooe AO0PC OCD OV p1eoq A ddns Jomod oSej oA QSTH yun Ajddng Jomog 9373 0A M0 T eyejs Kqpuejs e jo oui ot 1e JAHAL eree T A S AOEZ AOT DASA voxa I jun A ddns samod qns Aq pojonpuoo yoryM yo V em AHTO uodo 19407 AS L K ddng 1ms0g TONO JOjstuIoQ L lOSUOS IoUO b SutgoiMg nding ov ww Josuas PMO Ajddng IOMOd Kjddng lu D Ure i 1osuos yrr O8PHOA YSTH IoMOd qng A8 TAO Apc 1osuos Dl dAO0 AS Jopooy enue A D loxeodg s aS rs un e t 6NO ee uia NOOV eng LNO TIT t AS ins Ionuo3 Sunpoouts gt AJA Pele TL IL a OJJA cic orogo cic i z oSvi OA USTH Te11oAuo Q0 00C ZNO HSV H INOzI
193. nd medium is obtained this circuit changes to operate in the CV mode by the control signal 4 The TR2 output voltage is regulated by keeping the voltage obtained by switching opera tion of Q15 at a constant voltage by D66 and D65 5 6 4 CH 1 The CH output voltage is stabilized by keeping the primary flyback voltage obtained by switching operation of Q16 at a constant voltage by D76 and D82 Board Descriptions A 48 OKIOFFICE 44 Serv Man P N 59276801 5 7 Photosensors The photosensors mounted on this circuit board sensor board supervise the paper running state during printing These four photosensors are used in this printer as listed below All of their outputs enter IOGA for referring to and processing by the CPU 1 PS1 photosensor 1 TNRSNS Detects the lack of the toner 2 PS2 photosensor 2 PSIN Detects the leading part of the paper and gives the supervision timing for switching from hopping operation to feeding operation Supervises the paper running state and the paper size according to the paper arrival time and running time 3 PS3 photosensor 3 PSOUT Supervises the paper feed according to the time of arrival at the sensor and the time of passage of paper 4 PS4 photosensor 4 WRSNS Detects the leading part of sensor Supervises the paper running state 5 8 Cover open circuit The cover open circuit consists of CVSW When the Cover Main is opened the cover open microswitch CVSW on the OLHV TLHV
194. ndo WAW uado 19407 MS K ddng 1490q JONO m smor JESUS 1900 SUMS andino oyi I mn Iosuos PMO K ddng T AOd Kqddng UTE TA Li 10suos IIM 28204 43 1H Tomog ang A8 TAO Abzt gt Josuas dAO0 AS Iopoo Jenue w Ioxeod s EY L E E END am Et o ses o S ao Ld CITI F 3 e Ast ans OUO ungoours ZL IL ah ie CIS eroe TIS be u x aa T Aur I moj T Jo q21H Rs Rue IRURE dunt Sak a S em SV H E VOOI AJda w gt la f gt T Surpoooq io JOJOUI q yespuey H OOH o savdq 0r9 1ogng ni q AS So peuy 3 qme nex Li e dp 00 0809 sdqy t1 ss FH 0 3065 Ta s ndo TAL MIND WAGOW qoc VING nll J IZ EVDO V OV LVGH FINO pesy AHTI ate m x 1v ST id Medal te w E 801 3 1olour i m x uonerou235 SO I INO T oe Tonuoo pgc oofeyp s ZHWcl6r6c X Jonuoojejep ssamppy cOd TOd Ionuoo HTI OL Tod Tod du 7HIN 0 T Jonuos AS ans pl I X III i Suruueog END ndo ado hef fa ve VDOL ca Pe0LHS wort gt Un sjop 8 H ZI nao Y I VDOI Poo dV jes Josuas i no p y ry VO svavasmovivas as Heno aeui py pese Go 7 uu vv TUJINO Board Descriptions 300 bps Send Mode Figure A2 1 4 shows the 300bps send protocol signal route In G3 communication this is the route of the procedural control signals pre message post message phases etc at 300bps The protocol send data is read into DRAM in the sequence the conten
195. neral telephone is available even when the power is off Overheat protection The heater of the fuser unit is controlled within the predetermined temperature range by the thermistor If the temperature of the heater exceeds the range the LCD displays PRINTER ALARM 4 Furthermore the built in thermostat in the fuser unit prevents the heater from being overheated even in the event ofthe failures in the above temperature control circuit PC interface applications Option The following four modes are supported 1 PC local printer function 2 PC scanner function Note This function is standard 3 PC FaxModem function for OKIOFFICE44 4 Location Programing function General Information 1 16 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 9 11 Basic Performance Specifications Specifications Power supply unit and power consump tion of the machine Power consumption of the machine Typical power OKIOFFICE44 Transmit 19W Receive 115W Local copy Standby Power save mode is automatic for the OKIOFFICE 44 It cannot be enabled or disabled bv the user General Information 1 17 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 10 11 Basic Performance Specifications Item Specifications Ambient condition See Figure 1 5 1 1 Operating condition See Figure 1 5 1 2 Storage condition Figure 1 5 1 Temperature and Humidity Conditions Figure 1 5 1 Ambient Condi
196. o Users 1 1 Identifying the Packaged Contents Before using this system the packaged contents with the package list Contact your dealer if any component from the package 1 2 Required Devices The following devices and software are required to operate this system Internal memory 300KBormore Extended memory FX 050 series eme s 25 pin feralis connector I I plne line Public telephone line or two way local channel Operating system PC DOS Ver 3 1 or later This system requires ANSI SYS for screen control Confirm the following line in the CONIG SYS file if not found please add to write the command DEVICE C DOS ANSLSYS This system uses EMS memory In case of memory manager consisted of those EMM386 EXE or similar types is used by configuration without EMS function you should remark it does not work EXP DEVICE C DOS EMM386 EXE NOEMS Cannot use in settings of the COM port which connect to PC I F excluding default SERIAL PORT SERIAL PORT COMX START ADDRESS END ADDRESS IRQ com4 2E G3EF RG 1 3 Connectable Peripheral Equipment Pin Mouse Microsoft mouse or equivalent Telephone Ee To use a mouse a mouse driver program is required This program is automatically incorporated by the installation program RMCS System G 2 OKIOFFICE 44 Service Manual P N 59276801 2 Setup 2 1 Mounting This system RMCS Model 20 is used FX050 se
197. on NSF 04 Non Standard Facilities CSI 02 Called Subscriber Identification DIS 01 Digital Identification Signal NSC 84 Non Standard Facilities Command CIG 82 Calling Subscriber Identification DTC 81 Digital Transmit Command NSS 44 C4 Non Standard Set Up TSI 42 C Transmitting Subscriber Identification DCS 41 Cl Digital Command Signal CFR 21 Al Confirmation to Receive MCF 31 BI Message Confirmation FTT 22 A2 Failure to Train MPS 72 F2 Multi Page Signal EOM 71 F1 End of Message EOP 7A F4 End of Procedure RTP 33 B3 Retrain Positive RTN 32 B2 Retrain Negative PIP 35 B5 Procedure Interrupt Positive PIN 34 B4 Procedure Interrupt Negative PRI MPS 7A FA Procedure Interrupt MPS PRI EOM 70 F9 Procedure Interrupt EOM PRI EOP 7C FC Procedure Interrupt EOP DCN SF DF Disconnect ECM Error Correction Mode CRP 58 D8 Command Repeat CTC 48 C8 Continue to Correct CTR 23 A3 Response to Continue to Correct EOR 73 F3 End of Retransmission ERR 38 B8 Response to End of Retransmission FCD 60 Facsimile Coded Data PPS 7D FD Partial Page Signal PPR 3D BD Partial Page Request RCP 61 Return to Control for Partial Page RNR 37 B7 Receiver not Ready RR 76 F6 Receiver Ready Cleaning and Maintenance 6 24 OKIOFFICE 44 Serv Man P N 59276801 6 14 System Reset 1 Purpose To clear or initialize the following data to factory default settings a Location data One Touch Locations Auto Dial Locations Group Dial Programming b Configuration d
198. on ECM 10 ms at 3 85 line mm 5 ms at 7 7 line mm 17 Print speed Max 4 sheets per minute 18 Pre heating time Approx 30 sec Standby to print General Information 1 2 OKIOFFICE 44 Service Manual P N 59276801 19 Coding scheme Modified Huffman MH Modified READ MR Modified Modified READ MMR 20 Modem Rev 2 TU T Rec V 29 9600 7200 bps TU T Rec V 27 ter 4800 2400 bps TU T Rec V 21 channel 2 300 bps TU T Rec V 17 14400 12000 bps TU T Rec V 33 14400 12000 bps 21 Transmission speed 6 sec per sheet of ITU T No 1 sample document Note This is Phase C time at 3 85 line mm and 28800 bps for 3 sec and 14400 bps for 6 sec in MMR code transmission 22 Protocol TU T Rec T 30 OKI special protocols High speed protocol 23 Error correction mode ECM 24 Communication mode Half duplex 25 Memory capacity Basic model 256k byte Optional memory 1M byte memory board can be added 26 Liquid crystal display LCD Two rows of 20 characters for operation guidance check and various kinds of information 27 Power source Nominal input voltage 120 VAC 28 MFP Multi Function Peripheral function The optional board CTR board provides the MFP functions PC Printer Function PC Scanner Function PC FaxModem Function Location Programing Function General Information 1 3 OKIOFFICE 44 Service Manual P N 59276801 1 2 General User s Function l Q 3
199. on report manually or automatically COPY key Manual printout Pressed after a broadcast REPORT PRINTOUT 2 Manual printout FP 02 To enable or disable automatic printing General Information 1 20 OKIOFFICE 44 Service Manual P N 59276801 Table 1 6 1 2 2 Reports and Lists Specifications Item Specifications Confidential reception report The fax can print out this report automatically on completion of a confidential reception Telephone directory This directory is printed manually REPORT PRINTING 3 Configuration report This report is printed manually REPORT PRINTING 4 General Information 1 21 OKIOFFICE 44 Service Manual P N 59276801 Call back Message Format Example 1 2 3 07 01 96 09 24 OKI SHIBAURA OKI HONJO NO 002 4 PLEASE CALL BACK 5 OKI SHIBAURA 6 103 5476 1234 F050 C1 002 1 Date and time 2 Sender ID 3 CSI Personal ID 4 Letters PLEASE CALL BACK 5 Sender ID 6 Sender s call back telephone number Sender ID Format Example 1 2 3 4 5 07 01 96 15 06 OKI ABC 1234 3454 2000 No 021 W01 1 Date and Time 2 Sender ID 3 Receiver s CSI Personal ID 4 Session number 5 Page number F050 C1 003 General Information 1 22 OKIOFFICE 44 Service Manual P N 59276801 TSI Printing and Local Date and Time Printing Format Example 07 01 96 15 48 3454 1999 N ss TSI printing
200. onitored at a cycle of 40 milliseconds c Whenthe toner sensor does not change overtwo cycles T x 2 the toner sensor alarm state occurs d Afterthe image drum unit has been replaced after the drum counter has been reset Toner Low is not detected when the drum counter indicates 1 to 100 counts Print Operation Description B 14 OKIOFFICE 44 Service Manual P N 59276801 2 The basic rotation cycle of the toner sensor is as follows T time Basic rotation cycle of toner sensor 4 9 sec Toner low time t1 gt 1 2 sec Toner full time 1 2 sec gt t1 Print Operation Description B 15 OKIOFFICE 44 Service Manual P N 59276801 B1 5 Cover Open Opening the stacker cover turns off the microswitch on the high voltage power supply board to suspend 5 V supply to the high voltage power supply This results in the stop of all high voltage outputs At the same time the CVOPN signal is issued to notify the main control board of the switch status and cover open processing is executed Print Operation Description B 16 OKIOFFICE 44 Service Manual P N 59276801 Appendix C Circuit Diagrams C 1 General Information The OKIOFFICE 44 Circuit Diagrams contain component level repair information and are OKIDATA proprietary Circuit Diagrams C 1 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Circuit Diagrams C 2 OKIOFFICE 44 Service Manual P N 59276801 APPENDIX D ILLUSTRAT
201. or Message PAPER OUT JAM CONFIRM AND STOP Minimum scan line time for receiving 0 ms when receiving from an Oki Data facsimile 5 ms at 7 7 line mm and 10 ms at 3 85 line mm when receiving from a non Oki Data facsimile Coding scheme 1 One dimensional coding scheme Modified Huffman MH 2 Two dimensional coding scheme Modified READ MR Modified modified READ MMR MODEM a ITU T Rec V 29 9600 7200 bps 1 High speed MODEM b ITU T Rec V 27 ter 4800 2400 bps c ITU T Rec V 17 14400 12000 9600 7200 bps d ITU T Rec V 33 14400 12000 bps 2 Low speed MODEM ITU T Rec V 21 channel 2 300 bps General Information 1 14 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 7 11 Basic Performance Specifications Item Specifications Fallback Automatic fallback will occur according to the following sequence by FTT RTN or PPR Fallback Transmission Activated by Activated by Activated by rank speed FTT Times RTN Times PPR Times 1st 14400 bps 4 Note 1 ITU T V 17 V 33 12000 bps 4 Note 1 ITU T V 17 V 33 9600 bps 4 Note 1 ITU T V 17 V 29 7200 bps 4 Note 1 ITU T V 17 V 29 4800 bps 4 Note 1 ITU T V 27 ter 2400 bps 4 Note 1 ITU T V 27 ter Protocol When the last trial fails the transmitting station sends out a DCN signal to the remote station for disconnection Note Continuous PPRs for the same partial
202. or echo OFF TF 12 table OFF Disables Switches the function of limiting image compression only to the MH codes ON Coding scheme is MH only When the receiving image data is affected by noise on the telephone line This affects all communications and should only be used as a last resort OFF Any of MH MR and MMR High speed modem rate Specifies the modem s starting speed 14 4k 9 6k or 4 8kbps T1 TX timeout value Registers the time duration in seconds for which the 059 sec fax waits for the remote station s answer This timer starts when the last dialled digit has been sent in the automatic transmission mode Selects the 3 digit timer 010 to 255 sec selectable in one second steps Installation Procedure 2 21 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 4 7 Specifications Default T1 RX timeout value T1 RX timeout value later 035 sec Registers the time duration in seconds for which the fax waits for the remote station s answer This timer starts after the DIS is transmitted and checked this timer by the transmission timing signal If T1 times out the fax disconnects the line Selects the 3 digit timer 010 to 255 sec selectable in one second steps T2 timeout value T2 timeout value layer Registers the time duration in seconds for which the fax detects the EOL interval during reception of phase C The f
203. or she does not lift the handset within predetermined time 20 sec or 35 sec the fax automatically starts a document receive operation FP 10 To determine the timer Note Refer to TEL FAX Mode Flow Chart 2 38 OKIOFFICE 44 Service Manual P N 59276801 Feature Specifications Table 2 9 3 2 3 Item Specifications Automatic redial PTT parameter setting disables or enables this feature and speci fies redial times and redial intervals See 2 9 12 for the service bit condition depending on PTT parameters Last No redial REDIAL key is provided There is no limit on number of repeat attempts Group dial 5 dialling groups Maximum 55 locations Grouping some one touch keys and some two digit auto dial codes to which telephone numbers have been assigned This group setting makes broadcast operation simple Telephone directory and location ID In addition to fax numbers an alpha numeric name can be Alpha search assigned to each of one touch keys and two digit dial codes 01 to 45 for OKIOFFICE 44 This name is called a location ID Any location ID can be searched and displayed on LCD Then direct dialling to the ID s station can be performed There are two methods of searching 1 Search based on the first character specified 2 Searching by displaying all registered location IDs one after another in the lexicographical order Location ID Maximum 15 characters Voice request A voice request
204. ote A simultaneous operation is not supported in OKIOFFICE 44 but the structure is same as other machine OKIFAX 5000 series ZU OKIOFFICE 44 OKIFAX 4100 5000 series Printer Scanner NFaxModem Memory Hiper W KOki SCL 1 Class 1 MFPI N N N Oki MFPI IEEE 1284 Host PC Printer Scanner FaxModem N Memory Hiper W TOki SCL 1 Class 1 MFPI N N N Oki MFPI IEEE 1284 Application Layer Data Link Layer Physical Layer a Application layer Performs a function control of each sub system at the Host PC and Fax machine b Data Link layer Performs a protocol control at the Host PC and Oki MFPI TIA IS650 Level 1 require ment Packetize Unpacketize flow control Transfers command data between each sub system c Physical layer Has a bi directional interface control circuit which conforms to IEEE1284 Standard mode Compatible Nibble Oki special mode MCE Mode Change Express Board Descriptions A 60 OKIOFFICE 44 Serv Man P N 59276801 Following devices are as sub system 1 2 3 4 Board Descriptions Printer HIPER W Host based Image PrintER for Windows Encodes a rater image data in Host PC and transfers a data with HIPER W emulation Scanner Oki SCL 1 Oki Scanner Control Language 1 Transfers and image data of document scanned in Fax machine to the Host PC with Oki SCL 1 command FaxModem TIA EIA Class
205. p NO 5 1 8 gt To SENSOR CALIBRATION continued on the next page Cleaning and Maintenance 6 12 OKIOFFICE 44 Serv Man P N 59276801 e Enter 2 e Press Ee Operations key e Load document s For adjustment of levels use white plain bond paper s of NA Letter size e Press ra key e Observe and check the document feed operation Check that the followings do not occur Document skew Multiple document feeding No feeding NOTE The display shows Continued from the previous page ELF DIAGNOSIS lt NO 2 1 8 1 2 SENSOR CALIBRATION YES NO 2 1 8 a 2 SENSOR CALIBRATION PLEASE SET DOCUMENT p white document 2 SENSOR CALIBRAION CALIBRATING NG amp STOP key OK Y Y RESULT OK SCANNING ERROR After 3 sec After 3 sec DOCUMENT REMOVAL End of document feed After performing the adjustment make copies of test charts or known good documents Compare the copies to the originals to evaluate the copy print quality Cleaning and Maintenance 6 13 OKIOFFICE 44 Serv Man P N 59276801 6 7 LED Test 1 Purpose To check the operation of the LEDs on the operator panel 2 Procedure
206. page within each fallback rank Protocol 1 ITU T Rec T 30 2 Oki Data special protocol High speed protocol The T 30 protocol signal from the transmitting station is sent at message transmission speed instead of 300 bps Note In high speed protocol 28 8 K bps are not supported Transmission time 6 sec ITU T No 1 sample document Note This is Phase C time at 3 85 line mm and 14400 bps for 6 sec in MMR code transmission Error correction ITU T Error correction mode ECM Oki Data ITU T ECM Communication mode Half duplex Ringing signal detection sensitivity 1 Voltage range 25 to 150 V r m s Inoperative below 10 V 2 Frequency range 20 to 68 Hz 3 Ring response time One ringing signal or 5 to 30 seconds Selectable in 5 sec steps F OT9 lt 11 General Information 1 15 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 8 11 Basic Performance Specifications Image memory Basic model Optional memory OKIOFFICE44 256K byte IM byte Memory condition _ Standard With without option option board 1M byte 2M byte Note ITU T No 1 sample documentis used to count the number of sheets Back up time on electrical interruption Note OKIOFFICEAA does not back up the message received in memory for the power failure Telephone handset General telephone function is available while the power is on option Note In the fax special versions ge
207. play Clear User 1 Purpose A user can clear the image drum counter only when Change Drum Soon message is displayed and also check some of the other counters such as the print counter scan counter by using the key or key 2 Procedure The following example shows the menu flow when the service bit has been set OFF Operations The display shows e To begin press SELECT FUNCTION key once and SELECT FUNCTION OT one touch key No 7 in the standby mode MEMORY AVAIL 100 with no message in the memory Press OT7 EJ e Press lt key or gt key DRUM COUNT CLEAR NEXT 9 lt Key Key PRINT COUNT XXXXXX NEXT gt i Key SCAN COUNT XXXXXX NEXT gt Key CLEAR Note Clear Operation After the drum counter is cleared the warning message will disappear For further information regarding the CHANGE DRUM SOON message refer to the Hardware Handbook user s documentation Cleaning and Maintenance 6 6 OKIOFFICE 44 Serv Man P N 59276801 6 4 Printer Counter Display Clear Service 1 Purpose The service personnel can clear and check the following counters Image Drum Toner Image Drum Total Print Scan Note DRUM T count is used to display the total in use life of the machine This counter cannot be
208. ple document feeding Go to 7 1 18 Document skew Go to 7 1 19 Document jam Goto 7 1 20 7 16 OKIOFFICE 44 Service Manual P N 59276801 7 1 11 LED Test Start Checking Points No No LED lights Check the OPE Unit connection Check the oscillator OSC OPE Replace the OPE Unit Replace R44 board cable Check the corresponding LED s on OPE board Perform LED TEST See 4 7 No All LEDs light Yes Any LED does not light Yes One LED or some LEDs light 1 2 3 4 No ALARM LED lights Yes No DARK LED lights gt Yes No NORMAL LED lights Yes No LIGHT LED lights Yes No STD LED lights Yes No FINE LED lights gt Yes No EX FINE LED lights Yes No PHOTO LED lights gt Yes E y End 7 17 Troubleshooting OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Troubleshooting 7 18 OKIOFFICE 44 Service Manual P N 59276801 7 1 12 Tone Send Test Note 1 The tonal frequency 2100 Hz will be sequentially Perform TONE SEND TEST sent for 5 seconds on the line terminals L1 and L2 See 6 8 Note 2 As an example signal route uses the WN5 NCU board Connect leads of frequency counter or oscilloscope across the line terminals L1 and L2 Tones appear at i3 No
209. ppears in the LCD display One touch key parameters Toassignthe following features to each one touch key 1 Echo protection ON OFF Installation Procedure 2 49 OKIOFFICE 44 Service Manual P N 59276801 2 9 5 User s Functions Example Function Program Operations The display shows e To begin press SELECT FUNCTION key once and one touch key No 9 in the 1 FUNC PROGRAMMING standby mode YES lt NO 2 1 4 when no message is in memory or 1 e Press lt key FUNCTION NO ENTER 01 23 e Enter two digit function number then the display will show the set item corresponding to the number entered If you want to set up all or several items starting with 01 then enter 01 Y To an individual setting item See Table 2 9 5 Installation Procedure 2 50 OKIOFFICE 44 Service Manual P N 59276801 User s Functions Table 2 9 5 1 2 Name of Function Message confirmation report Single location The Display Shows NGL E LOC ES e NO gt gt Setting Toggle X OFF S ON Message confirmation report Multiple locations ULT ES e I LOC NO gt gt Setting Toggle X OFF S ON Error report p ERR REPORT MCF ES e NO gt gt Setting Togg
210. printing DEFAULT version printing RAM check RAM check memory board optional PC I F version printing optional Procedure Operations The display shows e To bring the LCD up to the desired message press SELECT FUNCTION key once and COPY TP PROGRAMTLNG key twice in the standby mode In case of YES lt 1 4 NO 2 no message in memory e didi 1 LOCAL TEST YES NO 2 1 4 e Press key 1 SELF DIAGNOSIS YES lt NO 2 1 8 e Press key for cheking and test printing An example of printed data is shown in Figure 2 9 4 CPU PROG1 PROG2 XXXX XXXX XXXX 3 SEC LATER 1 SELF DIAGNOSIS EXCUTING Version indication 0 zal E3 nj iw DIAGNOSIS Installation Procedure 2 63 OKIOFFICE 44 Service Manual P N 59276801 Self Diagnosis Print Test Example Figure 2 9 4 CPU ROM VERSION AAOO HASH OK DACD CPU RAM OK PROG1 VERSION AAOO HASH OK 3142 PROG2 VERSION AAOO HASH OK 1234 LANGUAGE VERSION LL10 HASH OK 3F06 DEFAULT VERSION DD10 HASH OK A683 1 RAMI 1i OK 2 OPT RAMI 1 OK 2 OPT I F PARALLEL DEFAULT TYPE 01 07 01 96 1 marked item is shown for condition of all RAM except EXCEED RAM 2 marked items are options Installation Procedure 2 64 OKIOFFICE 44 Service
211. procedure may be omitted depending on the dial parameters Note 2 MF Multi frequency tone is generated by the modem and transferred to the telephone line via the NCU board A 51 OKIOFFICE 44 Serv Man P N 59276801 4 Description of the NCU Block Diagram 41 UNC circuit diagram 1 11 12 13 14 15 16 Board Descriptions Lightning arresters ARI 2 The nominal operating voltage is 350 V When connecting the ground of the arrestor to the chassis tighten ARG on the PCB with a screw At this time the PCB is grounded through the power cable The TB1 arrestor ground terminal can also be used to connect to the earth directly DC circuits R10 R11 C4 These circuits provide DC characteristics according to the line requirements using the primary DC resistor in the line transformer T1 and the R10 and R11 resistors The capacitor C4 by passes AC signals Impedance matching network R523 R536 C503 This circuit matches the impedance between the line and equipment to reduce reflection of transmitted signals Receiving sensitivity R574 R504 The receiving sensitivity at line seizuring is determined by R574 and the MF tone receiving sensitivity at parallel pickup is determined by R504 CML RL1 This circuit selectively switches the line between the telephone or facsimile SR RL2 This circuit connects the line with the telephone During facsimile transmission it disconnects the telephone PP RL6 If
212. qddns 190d e3v0 oA uSrg yun Apddng 190q ogey 0A MO T xugeui youms Ady ADET ANT DASd8POXA AHTO AH TL 7 u do 19407 Ajddng 1 o0q ddO NO osmon JOSUOS 1I uo SUMS Josuas PPNO ule i JOSU S MIM A8 TAO Apt gt JOSUSS dAO AS lopooj enue Joyeods Y a NS Ld SUTYIOOWS MUT NV Gromxzis Groaxzre l Tonuos e a r7 Aa ple uamo i SOI HSv H wow yen oSv oA USTH M 00 00c TNO F OOV AAL Aud ST T MSV te VOOI Lo dolour q gt ja zy P TTA Surpoooq SINO logn X gx s Aq Qp9 1oging b AS Sopeuy Cx A c N XH LSO sdqy tyr LOI LAK za ono tap 00 INO 5 FLL DWVU I U0V LVdH FIND peeu THI INHGON u s B t t VOOI c dle mx 2a uonelouos So x lve a INQ JOJOUI i ojo snq zx a ld aaa ZHW 0C Y o 9uoo lt Ac ans Nui do wm xH E guruueog NC as UIUl S OD 9 i gt we Po Agt ans TX mos dum id P rNO Y e s vdvdsedviede 991 e d SND Seu pV V g IND aceite RE Il TR pra UNO J I v8cI CX 8X TA TIS JOAIO
213. r eeeeeeeeeeee F 1 Fl General Ipformati n Z P F 1 Appendix G RMCS System G 1 InfrOducti n NT G 1 l Or RENI Cm G 2 1 1 Identifying the Packaged Cont nts un o Ec siirsi G 2 12 Reg ired is Ce ene apc pctv vasi ua DUE Ida Nus ca iaeiaiai ui G 2 1 3 Connectable Peripheral Equipment uu amets sinne cp is neg G 2 2 SOUD mM G 3 2 1 Mounting quyun eT u MEA CPP eer ree rere er eee G 3 2 1 1 Mounting TIOCBOUISS s au ee aq a a pedet iub basi G 3 2 2 MEM Scc tert PN G 4 242 1 Registering the RMCS Basic System a G 5 2 2 2 Registering the Facsimile Model No eto teneret etn adu tSs G 8 2 2 3 Deleting the Facsimile Model No G 9 2 24 Updatmg the Password rede oie poche bud lan e esten i Me RO G 10 2 2 5 Updating th Dip SWIteheS ssiri iieiirieiiasnncsiisisireinessiisce sennie G ll 2 2 6 Deleting the RMCS Baste System a G 12 3 RNICS Bast Operation uu a deci e eas oris lu ER p UU Dori qu INE Disc uc EO ccn teatasin ei G 13 3 1 Activating and Terminating the system i e ie netu demens tores pesi Cessna bs Mtl G 13 3 1 1 ToActivate tm G 13 3 2 Entering the ID and Password
214. r E Pd g Dismount the paper sensor exit h Dismount the toner sensor assembly 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 27 D Paper sensor E P d CP4 1 Fig 34 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 19 Printer Unit 1 Disassembly Disassembly procedure a b c d e First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and Cover Main Remove Bracket Package with three screws then disconnect Cable Flat from connector on R44 Board M CNT Dismount the high voltage power supply board See Section 4 1 3 10 Disconnect cable 1 and 2 from connector on Board R44 M CNT and disconnect cable 3 from Connect on Power Supply Unit Remove the Printer Unit by removing three screws Detach the four clamps from underneath push inward on the top two tabs while lifting up to remove the Holder Assy Cable Flat n Holder Assy re a Bracket Package Cable 1 2 Cable 3 Printer Unit OKIOFFICE 44 Service Manual P N 59276801 Add Section 5 Adjustments 5 1 Setting of LED Print Head Drive Time Adjustment point Technical Function No 27 To bring the LCD up to Technical Function press SELECT FUNCTION key once COPY key twice and 2 key In case of no message in memory Note When the rank marking of the replaced LED print head new part is the same as
215. r digit 1 to 5 y 1 ACTIVITY REPORT Y key 2 BROADCAST MCF Y key 3 PHONEDIRECTORY Y key 4 CONFIGURATION D Y gt key S 5 PROTOCOL DUMP D v key S LOG REPORT D key or7 COUNTER DISP CLEAR D Selection by key or key Display amp Clear Clear only with Tech Function Off DRUM COUNTER 4q To OT9 Y key S TONERCOUNTER 2 User can read no of counter in LCD but can not clear key 4 When the service bit is set to OFF Funtion NO 11 v is bypassed to the next function NO some countries S C DRUM Total COUNTER Y key s Effective if the service bit is ON 2 ees Y key z2 SCANCOUNTER key Selection by OT A D or SEARCH oTs LOCATION PROGRAM 3 or ONE TOUCH KEY PRG A D AUTO DIAL KEY PRG or OTIO s GROUP SETTING Installation Procedure 2 15 OKIOFFICE 44 Service Manual P N 59276801 ES Powered on while holding the 2 SELECT FUNCTION key down 01 MCF SIGNLE LOC 02 MCF MULTI LOC 03 ERR REPORT MCF 04 IMAGE IN MCF Installation Procedure
216. r printing as HDATA 0 1 Board Descriptions A 18 OKIOFFICE 44 Serv Man P N 59276801 ayejs Aqpurys v jo ouin ou 1e yun Apddns 1amod qns Aq pojonpuoo yorym momo V 9 L z v 94n514 jeuBis yulig Wodey poq Aqddns 100d o3e3 0A uS1H A0vC OCD OV xun Ajddng 1o 0q 98v3 0A A0T AHTO AHTL uodo 19407 A0 c A0c DYSd8T0XH K ddng 1490qd 3HO NO FICE 44 Serv Man P N 59276801 1osu s IOUO J SUIyOUMS indino ov J mw Josuas JAMO ur 1 IOSUOS IM Josuas Jopo9j enue A Jayeods Te lt v 9 I LL L LI IIT ILlIl llolllp EE 1 y CCCCIILI CITI SNJ SNA Cc Oo SNM ONN Surgjoours Ad T ZL LL aeos awy GTOS CIS OMEN CTS aedi Io 0Au00 QOF naa m mmoj Sol eSv oA uSrq E 00 00c NO i BYTA WOY ASEN wass Us a e pa ca aba cu SUM PIE VOOI CEDOV ASL AXA NON qp Surposoq sino TOJoUr T yospuey H n sa1kq 0r9 Jong AS Sopuy x 8X TA ZIS c XH LSO God i sdai ipi 2 RTT i is DnaoyTH L mol Wwaqow qoc
217. reventative Maintenance Diagram Figure 6 2 1 1 edes eerte erre rnnt 6 5 6 3 Printer Counter Display Clear USET iue deunqienitd edet bete Ra RM aasa aa 6 6 64 Printer Counter Display C lear SerVI68 2 sasana met aquest uad Ye FE sU Ducem ede utl a a 6 7 6 5 Self Diagnosis Ista AT ene Peter On PPT name erent ES 6 9 Self Diagnosis Test Sample Figure D 5 L coectetuer e dcus 6 10 Explanation of Self Diagnosis Test Items Lusia et tet eere reto ei studs 6 11 6 6 Sensor Calibration ROSE b 6 12 6 7 IIb cp PC Ec EE TURN SIRE 6 14 6 8 Torie Send glo m 6 15 GU HMisb speed Modemi ESSE io uoc tr uei et cece ape cs at irai ta tig AE Gad uulnus 6 16 High speed Modem Send and Receive Test Diagram Figure 6 9 1 6 17 6 10 High speed Modem Re ry Test entered ni icta a ered asway qiswacaayqasa 6 18 OLI uic DP Teo EG 6 19 6 12 Tone TEL FAX NT cnc a asua Say aduaqay 6 20 0 139 Protocal Data Dump PEIUS a bar tested ccna secu i nes Dus dene edt itid iun pus 6 21 Sample Protocol Data Dump Figure 6 13 6 22 Data Analysts Figure O89 sa adesse oU n ut HDD EE IR De de E Rae 6 23 Facsimile Control Field Conversion Tabl a etat quante a iua ti tans Rent dussat 6 24 014 System RESET qe
218. ries Facsimile with PC I F Conceptual connection diagram of RMCS Model 20 with other devices Conceptual connection diagram of RMCS with other devices FX050 series facsimile with PC I F Remote Fax 4 RS232C cable PC I F board Telephone set No problem is caused for the basic operation of this system even if no telephone set connected 2 1 1 Mounting Procedures 1 Before operation disconnect the power plug of the IBM PC AT from the system plug socket 2 Disconnect the power plug of FX050 series Facsimile too and set PC I F board to the Facsimile 3 Connect RS232C cable between COM Port of the IBM PC AT and PC I F board of the Facsimile 4 Connect the power plug of the IBM PC AT and the Facsimile and turn their power switch on RMCS System G 3 OKIOFFICE 44 Service Manual P N 59276801 2 2 Installation When the PC AT is activated by using the hard disk insert an RMCS system disk into drive A When C is displayed enter commands as shown below to activate the installation program C A Enter A INST Enter Remote Management Center System lt lt INSTALL MENU gt gt 1 RMCS SETTING 2 FAX SETTING 3 FAX DELETE 4 PASSWORD UPDATE 5 DIP SW UPDATE For Model 10 6 RMCS DELETE 7 END Please select the desired item Select processing with the numeric keypad 1 Register the RMCS basic system 2 Register the facsimile model number 3 Del
219. rix CPU 2 OPECHK 5 5 A PCI N 13 13 lt gt gt NOS CEU KSENS0 from PC1 to Internal ROM DB0 KSENS7 IC2 to DB7 OPERST 4 4 gt gt PSMODE 3 D f IOGA HUP N 15 15 LCD unit lt gt e RINT 14 14 lt gt gt Control signals from NCU to Main power supply MP OFF 12 12 P AC ON Eight LEDs gt LEDs Figure A3 3 1 Block Diagram of OPE operation unit Board Descriptions A 43 OKIOFFICE 44 Serv Man P N 59276801 A3 5 Power Supply Unit for OKIOFFICE 44 A3 5 1 048 POW 120V 230V Circuit Diagram IMPORTANT Oki Data Corporation recommends that maintenance of the Power supply unit 048 POW board be performed by replacing the entire power supply unit not by replacement of components Therefore 1 circuit descriptions in this section are for reference 2 orders for components of the power supply unit cannot always be accepted Functions of unit 048 POW circuit generates the following direct currents DC based on the alternating current AC 120V 6 15 AC 230 V 15 14 1 Low voltage power supply circuit This circuit generates the following voltages Output Voltage Output Voltage 5 V Logic circuit supply voltage IC LSI and high voltage source voltage 8 V CIS contact image sensor 24 V Send motor drum motor fan drive flash memory CIS and clutch 2 Input ratings Voltage AC 120 V 6 15 AC 1
220. rmostat of the heater voltage supply circuit functions to forcibly suspend the AC voltage supply Print Operation Description B 2 OKIOFFICE 44 Service Manual P N 59276801 Paper Feeding Diagram Figure B1 2 uo pauJni si uoinjo 3119uBpui01199 9 9U uauw peuuojled si YaAamoy B1 y WO uore1edo Huiddoy uomejoJ Jejo01 HBulddoy J9 0 Paay 49 0J 3X9 49j 04 eau JajjoJ DurdojaAap 19j 0J H2 49 01 Buruegjo 19 01 J9jsueJ Jaj oJ uiniq UOI e10J J9j 04 41x9 19 0J Yay 49 01 DuidojaAep 19 0J H9 9 01 Buruee o 49 04 JejsueJ 494104 uin ureul JOJOW s nd Jo uonej0J esieAaH Z ureui JOJOWW s nd jo uomnejoJ ELON T urew 10 0w s nd Ag 041009 131104 Dunuud AVY 19 01 J9JSUEJ esas Josuas NO V Josuas Jaded Josuas poe yenueyj V J9 01 29H 131101 13 J9j 04 Bulue 9 P i J9 0J H2 191101 uiniq 131014 Buldojanaq urew 1o ouu asjnd jo uomejoJ ewou Aq uaAup 3q 014010 T V 19 01 paa ure 101010 asind jo uome1oJ 9SJ9 91J Aq uaAup aq 01 J9 OH Z l I I I I j I 1 I l I I l I 1 l I l I Bumuud enuen OKIOFFICE 44 Service Manual P N 59276801 Print Operation Description B1 2 Electrophotographic Process 1 Electrophotographic process The electrophotographic process is outlined below 1 Charging The surface of the image drum is charged negatively an
221. rogrammed to the high speed modem send test mode 2 Procedure Operations The display shows e To begin press SELECT FUNCTION key once 1 SELF DIAGNOSIS COPY key twice and lt key twice with no YES NO 2 1 8 message in memory 6 e Enter 6 MODEM RECEIVE TEST YES c NO 2 1 8 lt e Press lt key e Set MODEM rate by key MODEM RATE 14 4K YES NO 29 gt Key l e Press key 6 MODEM RECEIVE TEST RX 14 4K 00 00 0000 e After the test press STOP key For detail see Fig 6 9 1 l 14 4K gt 12 0K gt 9 6KT V 17 gt 7 2KT V 17 gt 9 6K V 29 gt 72K V 29 gt 4 8K gt 24K Cleaning and Maintenance 6 18 OKIOFFICE 44 Serv Man P N 59276801 6 11 MF Send Test 1 Purpose To send the multi frequencies of tone dialling to the line 2 Procedure Operations The display shows e To begin press SELECT FUNCTION key once 1 SELF DIAGNOSIS COPY key twice and key twice with no YES NO 2 1 8 message in memory F 7 Enter 7 7 MF TONE SEND TEST iie YES e NO 2 1 8 e Press lt key PRESS 1 e Press 1 2 3 4 5 6 7 8 9 0 or
222. rol At power on time the CPU switches the output signal THON from pin 65 between high and low states to check for a blown or shorted thermistor according to the status of the THCHK signal A built in thermostat in the fuser unit prevents the heater from being overheated in event of failures in the thermistor or temperature control circuit etc Figure A3 1 16 shows the fuser unit temperature control Note Heater control Temperature of the heater at the time of printing is 150 C to 180 C This tempera ture is maintained by controlling the on and off operation of heater according to the input of the thermistor converted into analogue digital A D values by the CPU Heater control The ACON control signal on the secondary side is transmitted to the primary side via PC3 to turn TRCION for AC voltage supply to the heater R44 048 POW HEATON IC2 HEAT N Heater on off circuit Hi IOGA ONO ACIN pe 5V r4 I CN7 T i PC3 ACON CPU i 10 THON TRCI Qu lt PAII Eek AY D D yY THCHK 9 AN o M PCO CN6 OV 7 kj AOUT 13 lt Thermostat OLHV TLHV HOB E Qw Heater Board EM Thermistor 5V Fuser unit Board Descriptions Figure A3 1 16 Fuser Unit Temperature Control
223. rvice Manual P N 59276801 TEL FAX Automatic Switching NOTE This function assumes that an optional handset is connected to the machine This function is used for the purpose of TEL FAX automatic switching as follows 1 Ifthe machine detects a call with a CNG signal indicating an auto send facsimile call it starts an automatic document receiving operation 2 If machine detects a call without a CNG signal machine generates the buzzer sounds as a telephone call The calling person can hear a ring back tone for up to 35 seconds by default If the operator at the called side does not lift the handset within 35 seconds by default the machine automatically starts a document receiving operation Voice conversation will automatically be available through the internal handset by lifting up the handset while the call buzzer is sounding Note Inthis mode following four settings are required 1 The predetermined time is selectable between 20 or 35 sec Function program No 10 2 No ringing signal is sent to the external telephone handset 2 TAD mode TAD Telephone Answering Device TAD can be connected to external telephone terminal to record your messages TAD records your speech and switches an automatic voice message response to the calling station Note 1 A choice of TAD mode is available by Technical Function No 12 Note 2 The predetermined time is selectable between 20 or 35 sec Note 3 Choice of message sending level T
224. s Board Layout E 4 OKIOFFICE 44 Service Manual P N 59276801 Appendix F Second Paper Feeder F 1 General Information The OKIOFFICE 44 does not have a second paper feeder Second Paper Feeder F 1 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Second Paper Feeder F 2 OKIOFFICE 44 Service Manual P N 59276801 Appendix G RMCS System Introduction RMCS stands for the Remote Management Center System RMCS refers to setting registration data and conducting the following types of maintenance operations from a remote location Refer to Figure 1 The purpose of this system is to speed up customer service and reduce maintenance costs RMCS model for FX050 series is only Model 20 Password USER DATA BACKUP DELETE USER SELECT USER MAIN MENU a TEL NO USER ID REGISTER USER Fax Model TERMINATE RMCS All Data User Data Tech Data One Touch and Auto Dial P L D Data DOS file Tech Data One Touch and Auto Dial Block Copy Initial and Total Reset Load Data to Fax Fax Data Edit On Line Edit File Off Line ES Clock Adjustment Test On Line A Check Machine Inf Counter Data COM Port Setting E Frame Size Setting Ope Report Enviroment RMCS Terminate Figure 1 Remote Manegement Center System RMCS RMCS System OKIOFFICE 44 Service Manual P N 59276801 1 Notes t
225. s No across L1 and L2 t Yes Check the line Receive signal appears across CN3 19 20 R and i CN3 7 GND of WN5 board Yes Replace R44 Board Signal route CN10 A6 B6 R IC12 3 IC8 60 RXA1 gt IC8 26 to 33 ADO to AD7 Yes Signal route Replace NCU Board r CNI 3 4RL 1 8 5 TI1 1 3TI 2 65 CN3 19 20 R Yes Solved No Y Replace R44 Board 777777 Possible cause CML signal Y Rum to section 7 1 Troubleshooting 7 21 OKIOFFICE 44 Service Manual P N 59276801 7 1 14 MF Send Test Start Connect oscilloscope probe across the line terminals L1 and L2 Perform MF SEND TEST See 6 11 MF signal appears N No across L1 and L2 7 Yes I No MF signal appears across CN10 A8 B8 S and CN10 A12 B12 OV of R44 Board Yes Replace R44 Board Signal route IC8 26 to 33 ADO to AD7 gt IC8 1 221C12 7 S gt CN10 A8 B8 S Signal route Replace WN5 Board rF CN3 15 165 TI1 3 13 CN1 3 4 Yes Solved No Y Replace R44 Board Ossible Cause CML signal Y nem to section 111 Troubleshooting 7 22 OKIOFFICE 44 Service Manual P N 59276801 7 1 15 Tone TEL FAX Send Test Notes Connect oscilloscope probe across the line terminals The pseudo ring back
226. s Thank You for purchasing this Factory Service Manual on EBAY from PCTECHI NFO Click Here for more Factory Service Manuals for other Computer and Printer Copier Manufacturers from PCTECHI NFO OKIOFFICE 44 Service Manual 59276801 All specifications are subject to change without notice Disclaimer This document may not be reproduced without the written permission of OKIDATA Training and Publications Evert effort has been made to ensure the accuracy of the information contained in this training course OKIDATA is not responsible for errors beyond its control Copyright About Information Copyright 1997 by OKIDATA All rights reserved First Release P N 59276801 September 1997 Written by OKIDATA Training and Publications Contact Information Please address any comments on this publication to Mailing Address OKIDATA 532 Fellowship Road Mount Laurel NJ 08054 3499 Web Site www OKIDATA com Telephone 609 235 2600 Facsimile 609 222 5320 OKILINK Login Name Technical Training Copyright Listing OKIDATA is a registered trademark of Oki Electric Industry Company Ltd marques deposee de Oki Electric Industry Company Ltd marca registrada Oki Electric Industry Company Ltd Faxable Facts is a trademark All Rights Reserved 1993 IBM PC PC DOS and Proprinter XL are registered trademarks of International Business Machines Corporation Microsoft and MS DOS are registered trademarks and Microsoft Bas
227. s determined by the amplification factor and output to the telephone line via UNC Hook switch and DB2 rectifier Receive signal route Receive signal from the telephone line enters Speech IC via UNC Hook switch and DB2 and is output to pin 2 amp 3 of the speaker of the handset Board Descriptions A 54 OKIOFFICE 44 Serv Man P N 59276801 TO DYP gno DNA o poj ouuo END WNIT OOH TA TOD OI uo ds TON zou IDARI jespueH w ILL WW CLL euoudouorq TNO Block Diagram of TEL U Option Fig A3 8 1 WMI YomIaN uoeeds SE lt Tadd 0 p josuuoo INO uondo TAL OKIOFFICE 44 Serv Man P N 59276801 A 55 Board Descriptions A3 10 MEMO Memory Circuit Diagram Option By mounting this optional memory board MEM MEM 2 it can be used for the expansion memory 1 Block diagram Figure A3 10 1 shows a related signal of memory board MEMO MEMO cC circuit consists of the following block 1 512 kbyte pseudo static RAM x 4 RAMI to RAMA Used as follows Picture memory for the ECM send receive modes e Picture memory for the memory transmission mode e Picture memory for the retransmission data e Picture memory for the reception in memory 2 Memory capacity 1 Mbyte MEMO 2 memory board can be added for OKIOFFICE 4
228. se in which the service bit is on Operations The display shows e To begin press SELECT FUNCTION key once and SELECT FUNCTION OT one touch key No 9 in the standby mode MEMORY AVAIL 100 with no message in memory Press OT9 e Enter 2 using the ten key pad 1 FUNC PROGRAMMING YES lt NO 2 1 4 2 e Press key 2 DIAL PARAMETER YES lt NO 2 1 4 To DIAL PARAMETERS Installation Procedure 2 60 OKIOFFICE 44 Service Manual P N 59276801 The display shows Continued from the previous page 2 DIAL PARAMETER YES 0 2 1 4 3 REDIAL TRIES 1 Redial time aen 2 TRY YES e ae i OTRE o IO TRY REDIAL INTERVAL 2 Redial interval lt n it 1 MIN YES lt NO gt EMIN 66 MEN Y DIAL TONE DETECT 3 Dial tone detection oe NAON ON YES NO gt CORE SE ON ru Y s DTE 4 Busy tone detection BUSY TONE DETECT deni gres ON YES e O gt Y E m 5 MF Tone or DP Pulse MF TONE PEE PULSE BL DP MF YES NO 9 E Y gt PULSE DIAL RATE 6 Pulse rate 10PPS YES e NO gt lt 10PPS I6PPS
229. sed part high potential part of the Image drum at the contact between the Image drum and the developing roller making the electro static latent image visible At the same time the residual toner on the Image drum is attracted to the developing roller by static electricity Development Developing roller EP drum Brief Technical Description 3 2 OKIOFFICE 44 Service Manual P N 59276801 4 The recording paper is placed over the Image drum surface and a positive charge opposite in polarity to the toner is applied to the reverse side of the paper from the transfer roller The toner is attracted by the positive charge and is transferred to the paper The toner charged negative that is attracted to the Image drum surface is transferred to the upper side of the record ing paper by the positive charge on the lower side of the paper EP drum Transfer Transfer roller Power supply The unfused toner image is fused on the paper under heat and pressure as it passes Heater Heater roller between the heater roller and the back up roller Back up roller Residual toner on the Image drum is attracted to the cleaning roller temporarily by static electricity on the Image drum surface Cleaning roller Cleaning Power supply N Transfer roller Brief Technical Description 3 3 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Brief Technical
230. shooting Recording paper feed jam transport jam ejection jam recording size error PAPER OUT JAM REPLACE PAPER Is the paper tray No loaded properly Yes Is the paper of No specified size Ec Yes Does the same error occur many times Yes Does the error occur during paper loading No Does the error occur while Yes paper is under the EP drum No Does the error occur Yes while the paper is at the eject station ps See ACTION 13 Load it properly Y Replace with paper of the specified size Remove the jammed paper See ACTION 10 See ACTION 11 See ACTION 12 OKIOFFICE 44 Service Manual P N 59276801 6 No Paper Tray or No Paper No recording paper on the tray PAPER OUT JAM REPLACE PAPER Has the paper tray been loaded No Load it Yes Is recording paper out Load recording paper See ACTION 14 Troubleshooting 7 38 OKIOFFICE 44 Service Manual P N 59276801 Action Items Printer Unit LCD Message Table 7 1 22 2 No ACTION No ACTION 1 Check R44 Board 8 Check connection between the PWU and the fuser assembly heater thermostat 2 Check PWU HV Board cover open s
231. ssembly and parts in the assembly 1 Disassembly procedure 9 Screw 1 Dismounting the heat assembly a First carry out procedure up to the point of the 4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN b Dismount the high voltage power supply board See Section 4 1 3 10 Connector 2 c Remove NCU Board with two screws d Remove Bracket Package with three screws then disconnect Cable Flat from connector on R44 Board M CNT See Section 4 1 3 19 e Pullout the Holder Assy See Section 4 1 3 11 CP4 1 Fig 30 f Disconnect connector 2 remove two screws 1 and dismount the heat assembly 2 Reassembly procedure Reverse the disassembly procedures CP4 1 Fig 31 Disassembly 4 24 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 16 Pressure Roller B Back Up Roller 1 Disassembly procedure a First carry out procedure up to the point ofthe4 1 3 2 ID Unit Cover Rear Cover NCU and Cover MAIN b Dismount the high voltage power supply board See Section 4 1 3 10 Bearing BU c Dismount heat assembly N See section 4 1 3 15 p d Pressure roller B d Dismount the engagement with the left ground then pressure roller B Two bear ing BUs and two bias springs also come off at the same time Bearing BU Bias u CP4 1 Fig 32 2 Reassembly procedure Reverse the disassembly procedures Disassembly 4 25 OKIOFFICE 44 Service Manual P N 592
232. subtract the speci fied level from the line cable attenuation to determine the send level of your fax T F tone attenuator Adjusts the attenuation dB for the quasi ring back for TEL FAX SW tone send signal of TEL FAX switching Adjusting value is 0 to 15 dB in one dB steps MF attenuator Adjusts the attenuation dB for the send MF tone power level Adjusting value is 0 to 15 dB in one GB steps Ring duration detection time Selects the minimum ring detection time Adjusting time is 100 MS to 990 MS in 10 MS steps 10 to 99 selectable For example 120 ms 12 x 10 ms 120 ms CML timing Selects the time from end of ring to CML ON Ad justing time is 100 MS to 1900 MS in 100 MS steps 0 to 19 selectable For example 300 ms 03 x 100 ms 300 ms Installation Procedure 2 23 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 6 7 Specifications Default Strobe for LED head Setting of LED print head strobe signals 00000 11111 Selection of strove width in LED head 00000 is darkest and 11111 is lightest Note 1 When the rank marking of the new replaced LED print head new part is same as that of the old used LED print head old part you do not always have to set the LED print head strobe signal Intensity ranking is determined by the first second and third digits from the right on the LED print head serial number i e in 212 212 is the in
233. such as printed circuit boards do not wear gloves that are likely to generate static electricity Using a wrist band connected to the ground will protect semiconductors on printed circuit boards from damage by the static electricity Do not place printed circuit boards directly on the equipment or on the floor Board or Part Adjustment NCU board DIP switches to be placed in the same position as on the removed board Refer to Chapter 8 LED print head When the rank marking of the replaced LED print head new part is the same as that of the used LED print head old part you do not always have to set the LED print head strobe time by the technical function No 27 Refer to chapter 5 4 1 OKIOFFICE 44 Service Manual P N 59276801 Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops voltages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Disassembly 4 2 OKIOFFICE 44 Service Manual P N 59276801 4 1 2 Tools Table
234. t specification Yes The documents are bs No normal Check points 1 Adhesive such as paste tape etc on the surface of the documents 2 The leading edges of the documents are rugged due to paste etc Use the carrier sheet Yes Normal No x Is the control panel unit firmly closed gt gt Close the control panel unit Yes Are there obstacles such as pieces of aes Remove the obstacles paper in the document passing slot Yes Is the Pul rugged Replace the rugged parts Troubleshooting 7 28 OKIOFFICE 44 Service Manual P N 59276801 Yes Is the separation rubber m Clean it Are pinch rollers pressed normally by the No springs After pushing them with your fingers Set them properly do they return back to the original positions N Yes Are the feed follers dirty gt Clean them No Is the scan roller Yes worn or slippery Replace it X Yes Is the ADF Roller Clean it No Replace the ADF roller the scan roller and or the pinch rollers Troubleshooting 7 29 OKIOFFICE 44 Service Manual P N 59276801 Troubleshooting 7 1 21 Document Jam Start Load a document Is document fed by any leng
235. td td aped dud Ene EE A 8 Copy MOd exzu uu P ET A 8 Copy Picture Signal Frisure A2 1 1 uuu otto tr ESeDp E toner eun aean a i EESE A 9 G3 Send ModE E E E RE A 10 G3 Send Picture Signal Figure A2 1 22 us assesi ieseni en t dic A Ill G STR yi M d xu sz ch eed edt A 12 G3 Recerve Picture Signal Figure A2 L3 a sueta dede dt las eoe aaa Ren sis A 13 300 DPS Send ModE rnaen ope eget ied ea te ames to Ec UP ise eed aac eaten ras UE A 14 300 bps Send Signal Figure A T 30 esca spun UR IRR adiu e ai A 15 300 bps Receive Mod Mr O A 16 300 bps R eiv e Signal Figure A2 1 5 Coates ada dade anti UR d e QU IR ER n Re A 17 Report PINNE T c A 18 Report Prime Signal Figure A2 IB Lu cte Meneses Deest dns an hece delitiis nE A 19 Memory PER SEDI SSTODL u usu aqa h hui anite ume ten vh M aetna A 20 Memory Reception a esconde vetustas qaqan AEE edid me festetaes deem qayana aun qy RO A 20 AGO OPE COS W Circuit Diagram sne Q sam an dev a dad E lode ELM ugue Dad A 42 A33 Power Supply Unit for OKIOFFICE 44 A 44 A3 5 1 048 POW 120V 230V Circuit Diagram a A 44 Block Diagram of 048 POW Figure A3 5 1 A 46 SEeFVICO CAUMO u uo um aoaaa hapa
236. tensity ranking Also This setting should be verified upon initial install of machine or replacement of main control PCB or LED Head Setting of Technical Function No 27 Setting Rank Marking 291 313 269 290 248 268 229 247 212 228 196 211 181 195 168 180 155 167 143 154 132 142 122 131 113 121 105 112 100 104 Installation Procedure 2 24 OKIOFFICE 44 Service Manual P N 59276801 Service Personnel Initial Settings Table 2 9 1 7 7 Head width Media type This setting can cause minor changes in the transfer roller current to com pensate for different paper weights Transfer Roller Latch Current This setting can cause minor changes in the transfer roller current to com pensate for different paper weights Not Used Installation Procedure Specifications Default Head width later You should confirm the head width by the following table and then select it by this setting Refer to 4 2 1 Head width is two types TYPEI TYPE2 Setting Head width TYPE 1 208 mm Head label 1115G2 TYPE 2 216 mm A4 200 Selects the recording paper according to its quality Medium Medium Medium heavy and Heavy selectable Selects the latch current for the transfer roller 1 0 1 2 OKIOFFICE 44 Se
237. th Yes Check PC1 2 Replace R44 Board 3 Check the mechanical portion Scan motor etc Document feeds about See 6 17 for further details 5 5 cm 2 16 and stops with the SELECT LOCATION 1 Check PC2 2 Replace R44 Board message displayed Yes Press Copy key Document jammed Yes Abnormal Are documents abnormal l Check points 1 Adhesive such as paste tape etc on the surface of the documents 2 Too thin lt 0 06 mm 003 3 The leading edge of the documents are rugged or thickened due to paste etc 4 Too thick Multiple documents gt 0 13 mm 005 Single document gt 0 15 mm 006 5 Too long Longer than 380 mm 14 96 For 1 and 2 use the carrier sheet For 2 and 4 use documents of the specified thickness or copy the documents with an office copy machine and use the copy For 3 cut the leading edge or copy the documents with an office copy machine and use the copy For 5 use documents of the specified length No Normal Are there obstacles such as paper clip in the document passing slot Yes Remove the obstacles i Replace the parts No Are parts guiding a Yes document rugged due to flaws etc No Yes Is the Scan roller dirty Clean it y No Replace the scan roller
238. th a new crystal oscillator X1 2 5V DC Voltage SUB Measurement point R44 board CN7 12 pin and ground terminal Specification 5V t 496 4 5V to 5 2V 3 S5V DC Voltage Measurement point R44 board CN7 1 2 amp 3 pin and ground terminal Specification 5V t 496 4 5V to 5 2V 4 8V DC Voltage Measurement point R44 board CN7 9 pin and ground terminal Specification 15V to 6 5V 5 30V DC Voltage Measurement point R44 board CN7 8 pin and ground terminal Specification 24V to 45V 6 Contact Image Sensor Output SIG signal Measurement point R44 board CN5 1 pin and ground terminal Specification A waveform sample is shown below Test chart White sheet A4 size 2 0Vp p lt gt 5ms Adjustments 5 2 OKIOFFICE 44 Service Manual P N 59276801 Service Caution The High Voltage Power Supply Unit in the OKIOFFICE 44 is mounted vertically on the left side of the unit with the land side fully exposed This board develops volt ages of up to 1300 VDC as part of the normal printing process OKIDATA recommends that the unit be powered OFF AC supply cord disconnected before removing the Main Cover for service In the event that it is necessary to troubleshoot the unit with the Main Cover removed with AC power supplied please take every caution to avoid touching the exposed circuitry of the High Voltage Power Supply Unit To do so accidentally can result in a shock hazard Adjustments 5
239. that of the used LED print head old part you do not always have to set the LED print head drive time Adjustment 1 Turn AC power ON 2 Setting of LED print head should be according to the Table 5 1 1 below Settings of Technical Function No 27 Table 5 1 1 Setting 29 313 269 290 248 268 229 247 212 228 196 211 181 195 168 180 155 167 143 154 132 142 122 131 113 121 105 112 100 104 Notes The luminous intensity ranking is determined by the first second and third digits from the right in the LED print head i e in X X122 122 is the luminous intensity ranking This adjustment should be made whenever the main control board R44 PCB or the LED Head are replaced In addition this setting should be verified on initial unit install or whenever firmware is updated Adjustments 5 1 OKIOFFICE 44 Service Manual P N 59276801 5 2 Confirmation Items The clock frequency and power voltage of the machine are not possible to adjust in the field However their measurement procedures are described here for confirmation of clock frequency and each voltage 1 Clock Frequency Measurement point R44 board LC2 3 pin and ground terminal Specification 20 000 MHz 50 PPM Note If the counter does not read with 20 000 MHz replace wi
240. the dip switches on the RMCS card Normally you need only press Enter When an other extension slot and conflicting address space are being used change the address space with the dip switches then set the contents by using 1 and 0 When you use RMCS Model 20 you need only press Enter OFF corresponds to 1 and ON to 0 Therefore set the dip switches to 11000000 in the following case RMCS System G 6 OKIOFFICE 44 Service Manual P N 59276801 Remote Management Center System RMCS SETTING HARD DISK DRIVE C DIRECTORY C RMCS_ PASSWORD DIPSW ON 0 OFF 1 11000000 Are you sure Y or N Y Press the Esc key to cancel 5 When the setting is correct enter Y The system is now registered If not correct enter N Then repeat from step 1 again When registering the system also register ANSI SYS required for screen control and MOUSE SYS for using the mouse If RMCS is already set in the IBM PC AT RMCS SETTING MENU is displayed as below Remote Management Center System lt lt RMCS SETTING gt gt RMCS system already registered Over write OK Y Press the Esc key to cancel 6 When updating enter Y Then updating status When not updating enter N RMCS System G 7 OKIOFFICE 44 Service Manual P N 59276801 2 2 2 Registering the Facsimile Model No 1 Search the directory in which the system is registered When the system is found register the model number Remote M
241. tions 28 C85 18 C80 10 C73 10 C30 43 C29 15 ie x e gt gt k E B o gt ZS S E o x 43 C1096 18 C 10 15 C 20 30 40 TEMPERATURE C gt Area enclosed by lines with Range where printing is guaranteed Area enclosed by lines with O Range for storage without power supply Note The curve connecting 28 C 85 and 0 C 64 is the condensation curve General Information 1 18 OKIOFFICE 44 Service Manual P N 59276801 Table 1 5 1 11 11 Basic Performance Specifications Item Specifications Dimension 1 Width Approx 312 mm 12 28 inches Main body 2 Depth Approx 383 mm 15 08 inches 3 Height Approx 190 mm 7 48 inches Weight Approx 8 kg 17 6 lbs Main body Excluding optional units recording paper and packing materials Attachments to the main body 1 AC power cord x 1 2 I D unit x Already installed 3 Toner cartridge x 1 4 Telephone handset x 1 option 5 Curled cord and Telephone cord for 4 x 1 option 6 Document stacker x 1 7 Line cord x 1 8 One touch sheet x 1 Already installed 9 User s guidex 1 10 JetSuite Software User Guide x 1 11 Quick Start Guide x 1 12 WordScan OCR Manual x 1 1 19 OKIOFFICE 44 General Information Service Manual P N 59276801 1 6 Reports and Lists Table 1 6 1 shows Reports and Lists Specifications Note
242. tone is sent to the L1 and L2 telephone line for TEL FAX automatic switching Test Points for the MF signal are difficult to reach Perform TONE TEL FAX Use great care to prevent causing a short SEND TEST See 6 12 Pseudo Ring Back Tone No signal appears across L1 and L2 j Yes No MF signal appears across CN10 A8 B8 S and CN10 A12 B12 0V of R44 board Yes Replace R44 Board Signal route IC8 26 to 33 ADO to AD7 IC8 IC12 7 S XN10 A8 B8 gt Signal route Replace WN5 Board CN3 15 162 T1 3 13 CN1 3 4 Yes Solved No Y Replace R44 Board Wee Possible cause CML signal Y nem to section 111 Troubleshooting 7 23 OKIOFFICE 44 Service Manual P N 59276801 7 1 16 No Acoustic Line Monitor There are two source routes of acoustic line monitor a General communication signal b DP pulse signal Start MONITOR VOLUME Function program No 06 has been set to LOW or HIGH Set MONITOR VOLUME to LOW or HIGH Yes MONITOR CONTROL Yes OFF Technical function No has been set to OFF No ON Set it to ON Connect oscilloscope probe across CN8 01 SP and CN8 02 AG Yes The signal appears No Replace the speaker A message can be No received normally Yes
243. touch key programming Two digit auto dial programming Y Group setting x Dial parameter settings See 2 9 9 Programming mail box password Y Memory operations Y Off line tests See 2 9 10 On line tests See 2 9 11 Y Installation of optional units See C mS Memory PC Board See user s guide Installation Procedure 2 2 OKIOFFICE 44 Service Manual P N 59276801 2 2 Site Selection INSTALLATION Precautions for Installation 1 Q 3 4 5 6 7 8 Fluctuation in line voltage e 120V AC 102V to 127V e 230V AC 198V to 264V Room temperature 50 to 90 degrees Fahrenheit 10 to 32 degrees Celsius Humidity 20 to 80 RH Operating environment Pressure Equivalent to altitude of 2500 m and below Exposure Within five minutes at luminous intensity 2 000 lux with the stacker cover opened Required space for installation The facsimile requires adequate space for safety and good operability Levelness of installation surface 1 degree maximum Other requirements Avoid installing in any of the following places A place exposed to direct sunlight place near a heat source or exposed to vibration A dusty place A place in the atmosphere of acid gas or steam etc place exposed to quick temperature changes Installation Procedure 2 3 OKIOFFICE 44 Service Manual P N 5
244. ts of various data stored in the FLASH memory area in advance under the control of CPU The contents of the frame has been edited on the DRAM by CPU and sent to MODEM via CPU HDLC high level data link control frame of the data is structured by the modem and converted to serial data in synchrony with the modem s DCLK data clock After modula tion the protocol signal is output from S of the modem and sent to the telephone line L1 and L2 via the transformer T1 of NCU Board Descriptions A 14 OKIOFFICE 44 Serv Man P N 59276801 t L ev e1n614 jeuBis pues sdq ooe ejus Kqpuejs Jo IWY oy je yun A ddns Jamod qns q pejonpuoo yom moro y Joxeodg poq Aqddns 1aMmod 8u oA uSIH AH TO AHTTIL uodo 19407 IOSUOS IOUO Josuas VAMO IOSUOS MIM Josuas Jopooj enue N A0vC OCD OV yun Apddng moq 9e3v 0A M0 T K ddng Jamog eSey oA QSrH I INO 9NO A0 Z A0C D NSd8p0XH Ajddng 1490q BUIYOUMS UP A8 TAO Apc ASt AS 0TX g5 CIS 9T1X g9 CIS WON 3st uondo TAL sdqy p ri INHGOIN 801 TEX 7HINCl r6c X ja Id lt amp lt AS NS AS So euy TII qoc YWA yod O T uone1oues SO ONUOS p8c o nuoo Texouduoq p VDOI
245. uit Diagram 1 Block diagram The circuit diagram consists of the CPU crystal oscillator circuit and reset signal generator Figure A3 1 1 shows the block diagram of CPU and the peripheral circuits 2 Function 1 Crystal oscillator circuit X1 is a 20 MHz crystal oscillator The output wave is fed to the CPU through pin 73 and Ox 20 MHz signal output from pin 71 is used as the system clock and output to IC2 IOGA3 input output gate array 2 CPU CPU controls the following functions in addition to the basic processor DMA Direct Memory Access control Interrupt procedure control A D converter Bus state control Programmable pattern control 16 bit integrated timer pulse unit ITU Timing pattern control TPC Serial communication interface SCT CPU Address bus Data Address bus Port C PCI PC2 Initial Reset Circuit fe KC Port A lt Port B M D motor L l XTAL CK gt 20 MHz ICl 5 V C PWRDY_N RES 20 MHz 9 EXTAL Related Signals of CPU Figure A3 1 1 Board Descriptions A 21 OKIOFFICE 44 Serv Man P N 59276801 This page was intentionally left blank Board Descriptions A 22 OKIOFFICE 44 Serv Man P N 59276801 A3 1 2 R44 Circuit Diagram l Block diagram The circuit diagram consists of an input output gate array IC2 IOGA3 Figure A3 1 2 shows the related signa
246. ulse control signal SR Control signal for connection between LINE and TEL terminals MUTE Control signal for pulse dial improvement and bell shunt relay PP Relay control signal for special service code detection at parallel pickup or remote reception PBXE Control signal for connecting one of LINE terminal to the PBXE terminal OH2 N Detection of off hook of terminal connected to TEL 1 or TEL 2 OHI N Output upon circuit current detection after fax line seizure RP Receiving sensitivity determination terminal RI Ringing detection signal S Sendsignal picture data protocol tonal signals PB tone etc e R Received signal picture data protocol tonal signals etc OPE interface signals TXDOPE This signal transmits sequentially the contents of each data of TXD LED on off information etc to OPE in serial data from CPU RXDOPE This signal transmits sequentially the contents of each data of RXD key code information etc to CPU in serial data from OPE OPECHK Use to monitor the operation of the OPE unit OPERST Resetsignal for OPE unit WAKEUP N Wakeup signal Board Descriptions A 30 OKIOFFICE 44 Serv Man P N 59276801 R44 NCU CNIO CN3 IC8 S A8 B8 S P R A4 B4 Receiving Modem a i sensitivit control R A6 B6 R lt
247. upply to the transfer roller the positive charge induced on the surface ofthe transfer roller moves to the paper side at the contact part between the transfer roller and the sheet of paper The positive charge on the lower side of the sheet of paper then causes the negatively charged toner adhering to the surface of the image drum to move to the upper side of the sheet This enables transfer to the sheet of paper High voltage power supply Transfer roller Print Operation Description B 10 OKIOFFICE 44 Service Manual P N 59276801 Fusing The transferred unfused toner image is fused to a sheet of paper because heat and pressure are applied when it passes between the heat roller and backup roller The Teflon coated heat roller contains a 400 W heater Halogen lamp that heats the heat roller The thermistor on the surface of the heat roller keeps the temperature of the heat roller constant A thermostat is also installed for safety If temperature rises abnormally this thermostat opens to suspend voltage supply to the heater The backup roller is pressurized to the heat roller by the pressure spring on each side Thermistor Separation claw Heat roller Heater Pressure spring Cleaning After transfer has terminated the cleaning roller temporarily draws in the untransferred residual toner adhering to the image drum with static electricity and then returns it to the image drum Cleaning roller High voltage pow
248. upport personnel and participate in round table discussions about OKIDATA products and services Product Service Bulletins Recom mended Spare Parts Lists Printer Drivers Product Specifications and Service Training Information are also available System Requirements for OKILINK II are listed below Asynchronous Communications Software set to 8 Data Bits No Parity 1 Stop Bit Asynchronous Modem up to 9600 BPS w error correction MNP V 42bis IBM Graphics ANSI Terminal Emulation The dial in number for OKILINK II is 1 800 283 5474 Recommended Spare Parts List l 1 OKIOFFICE 44 Service Manual P N 59276801 This page was intentionally left blank Recommended Spare Parts List l 2 OKIOFFICE 44 Service Manual P N 59276801 OKIDATA OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA
249. ve the two springs L and R Bearing Remove the Roller Assembly Sensor by remov BS ing the Gear Z31 Spring L Spring R Sy Roller Assembly Sensor Remove cable from CN4 on the R 44 PCB Ne S x EN d SY is Tilt the Frame Assembly U forward while turning and lifting upward to clear the slot on the b right side of the roller assembly Remove the frame assembly Reverse the disassembly procedure Plate Support Earth Cable CP4 1 Fig 16 Disassembly 4 11 OKIOFFICE 44 Service Manual P N 59276801 4 1 3 5 Roller Assembly ADF CIS Lever PC1 and PC2 CIS Contact Image Sensor 1 Disassembly procedure a First carry out the disassembly procedures up to the point of the 4 1 3 2 and 4 1 3 3 b Dismount the Printer Unit See Section 4 1 3 19 c Remove the Frame assembly Scanner L by removing the four screws 1 and the four connectors Frame Assembly Scanner L E Screw 1 CP4 1 Fig 17 Disassembly 4 12 OKIOFFICE 44 Service Manual P N 59276801 Hev 2 Plate Scanner R Plate Scanner B Plate Scanner L Plate Earth ADF Speaker CP4 1 Fig 18 Roller assembly ADF CIS d Turn the Frame Assembly Scanner inside out b and perform the disassembly procedure ix Ca Assy ADF e Remove the Plate Scanner L by removing 3 the two screws Lever PC2 f Remove the Speaker g Remove the Plate Assembly Scanner R and Plate Earth ADF by re
250. witch f 9 Check PWU cover open switch connection Check R44 Board 10 Check Sensor E magnet H 3 Return to Section 7 1 hopping roller pulse motor R44 Board Action of Idle gear P 4 Replace the Image Drum EP Unit 11 Check Gear T R44 Board PWU HV Board 5 Check installation of R44 board Power Supply Unit Board 12 Check exit sensor lever 6 Check R44 Board PWU 7 Check thermister resistance of about 13 Check R44 Board 200 kilo ohms at room temperature and about 140 kilo ohms at high 14 Check PWU R44 board temperature POWER SUPPLY UNIT Troubleshooting OKIOFFICE 44 Service Manual P N 59276801 7 1 22 3 Image Problems Table m ig Reference Troubleshooting norma symptom Figure Flow Chart No Images are light or blurred as a whole Fig 7 The blank background is smeared Fig 8 Blank paper is output Fig 9 Black belts or black stripes in vertical direction Fig D 10 Periodic abnormal printing Fig 11 Some parts not printed 12 White belts or some white stripes in vertical Fig 13 direction Poor fusing Images are blurred or peeled off E 14 when touched by hands Sample Image Problems Figure 7 1 22 1 Fig Fig Fig v WN V v Fig D Fig E Fig E Troubleshooting 7 40 OKIOFFICE 44 Service Manual P N 59276801 7 Light or Blurred Output Images are light or blurred as a whole
251. ys are as follows 1 Drum counter User can clear but cannot read counter number 2 Toner counter TF 0I Sets to on Service bit Drum total continue TF 01 Sets to on Service bit Print counter Usercan read no of counter in LCD but can not clear Scan counter Usercan read no of counter in LCD but can not clear Location program 1 One touch key One touch keys allow registering 1 Telephone number numeral P and space in 32 digits 2 Alternate fax telephone number in 32 digits additional registration 3 ID for the telephone directory function in 15 characters alphabetic numeric and symbolic One ID can be registered for one key 4 10 one touch keys are provided 2 Two digit auto dial program Auto dial No 01 to 45 allows registering telephone number in 32 digits numeral P and space and ID for the telephone directory function 15 characters alphabetic numeric and symbolic 3 Group setting Grouping some one touch keys and some two digit auto dial codes to which telephone numbers have been assigned This group setting makes broadcast operation simple Five dialling groups are available for the OKIOFFICE 44 Installation Procedure 2 43 OKIOFFICE 44 Service Manual P N 59276801 One Touch Key Program Settings Table 2 9 4 3 4 F OT Item Specifications User s programs Function program Function program 01 MCF SINGLE LOC 02 MCF MULTI LOC 03 ERR REPORT MCF 0

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