iDP3550_3551 Service Manual
Contents
1. ECOSTSCRPSRARRARARRRRSRRARA CITIZEN ae iDP3550 3551 Service M anual AOZLIV A9L OOEE WZOIEN 6820 52 ui AQL QOL i CITIZEN 6 23 Power PCB Assy 3535 03 120V OAHS dS3 ASt LJIOND Ud NS 72 a 82 0 2 AQG 1 tay A 9 0022 O7EIBSZ 111 0 5ESE Id E 100562 d WZOdB z i 1 1 1 i l 1007 lt 2 ta mu LY ZBBLO VIALM 3S 38 iDP3550 3551 Service M anual 2 4 Power Assy 3535 03 230V 6 A9L OOEE WZOdB8 ASY QOL OLO m WZOd8 Z 9 40072 3378 78 OAHS dS3 0620 SZ ul SIONS fe OND tdOND ni O7ELBSZ LIL EO SESE Jd 0 22 CITIZEN 39 iDP3550 3551 Service M anual 7 OUTER DIMENSION 7 1 iDP3550 Unit mm 40 CITIZEN iDP3550 3551 Service M anual 7 2 iDP35512. eM Al CITIZEN
3. Gee F 59 CoD Qader msn g 7 hs 8 5 2 2 Ee CD S s L a 2 o a fe 0 5 E Qux sci jr m qoc ye 98 10 5 25 4D PC 10 A Ca 5 ci C33K ms _ 5 32 Ras 7 R25 er o 5825 024 30 CITIZEN iDP3550 3551 Service M anual 5 4 2 Control PCB Assy 3550 02 Parallel Interface A S T ss 98 10 x ot MADE N oo c c G swi AAA 5 E 0 mozanonop x n 8 5 B G s ER co 8 GoD CO x c25 my CK ED oJ 1 R24 TC55257DPL 85L EE NI T 1 5 e gt 6 e E E Em 5 n HD74LSOLAP OE m A TA3 amp TEEN KY 5 74 B mT Fi ee j prerasoe Er D lt QE D SNL M8 1 103J ay E 0 20 El Mer b e aC Gr a co ed TA2 gt 54567 57GE 40360 751 31 CITIZEN iDP3550 3551 Service M anual 5 4 3 Power PCB Assy 3535 03 120V 5 22 8 asn ad Ayo asn dara JD xs 060 D3nusuo2 104 M 021 6820 52 00 in HER PHE830M X A0S
4. Power Supply 120 V AC 50 60 Hz 230 V AC 50 60 Hz Vp For mechanism drive drawer kick out Vcc F or circuit 35 CITIZEN iDP3550 3551 Service M anual 6 2 Circuit Diagram sub 25 6 2 1 Control Assy 3550 01 Serial Interface D esu 95955 pat 012222122329 SMTETEETSCH nn YAIHU Ede 2 001 299 221 19242 70 NOD SS d N3d0 20 2 2 27 840 20 27 oz esa 25 825 22 5 2 lt 31 wos Spans uvis W 8 222222222 E 70 80 a 920951 x 94025 0 CITIZEN 36 iDP3550 3551 Service M anual 2 2 Control PCB Assy 3550 02 Parallel Interface 6 642 2121 ILI 0171 LIION Ed2 72I 999 620 292 221 SB 6XYOL NOD 5579 II 39 2 2 2 2 340 JO J be 95V 0
5. Power consumption Not printing Approx 10W Printing Approx 30 W Weight Approx 2 8 kg Approx 3 kg Outer di mensions 160 W x212 D x194 H mm 160 W x212 D x173 H mm Operating temperature and humidity O to 40 C 35 to 85 96 RH No dew condensati on Storage temperature and humidity 20 to 60 C 10 to 90 96 RH No dew condensati on EMI standard U S A FCC Class A Europe EN55022 Class A CE Marking Safety standard U S A Canada UL UL Europe TUV GS CITIZEN iDP3550 3551 Service M anual 3 DISASSEMBLY AND REASSEMBLY 3 1 Disassembly Procedure 1 Removing the Top Cabinet 1 Remove the printer cover 2 Remove the four screws M 3x12 and detach the top cabinet by gently lifting it upward Top Cabinet 7 CITIZEN iDP3550 3551 Service Manual 2 Removingthe Chassis Assembly 1 Removethetop cabinet 2 Remove the one screw 3x6 from the bottom and gently lift the chassis assembly upward Pull out the power cable from the bottom cabinet 3 Removing the Printer Mechanism 1 Remove the top cabinet 2 Remove the two screws 3x14 3 Disconnect the two connectors and remove the printer mechanism by lifting its connector side upward Bottom Cabinet 2 CITIZEN iDP3550 3551 Service M anual 4 Removing the Power Board 1 Removethe chassis assembly and then detach the control board 2 Removethe strain relief bushi
6. Cirit Diag a 36 6 2 1 Control Assy 3550 01 Serial Interface D sub 25 36 6 2 2 Control PCB Assy 3550 02 Parallel Interface 37 6 2 3 Power PCB Assy 3535 03 120 2 4 1 101 000000 nnne nnn nnn nnns 38 6 2 4 Power PCB Assy 3535 03 230V eene enne enne nennen nennen nnne enn 39 OU TER BIMENSION Esser nenn cra ctt do ated ERU USUS 40 E CITIZEN iDP3550 3551 Service M anual qb DP3550 40 A25 bx DD DESDE I 41 For the printer mechanism DP 400 410 seethe separate Service Manual 4 CITIZEN iDP3550 3551 Service M anual 1 HANDLING AND MAINTENANCE OF PRINTER Seethe User s Manual coming with the printer body 5 CITIZEN iDP3550 3551 Service M anual 2 SPECIFICATIONS 2 1 Basic Specifications iDP3550 IDP3551 Printer mechanism Character type DP 654 series Graphic type DP 657series CITIZEN Serial dot impact method Bidirectional print 2 pass graphic Unidirec tional print Print width Character type 63 6 mm Graphic type 58 7 mm Print head 9 pins Print speed Character type Approx 3 6 lines second Graphic type Approx 3 lines second Print columns 40 columns Character size Character type 1 36 mm W x 2 4 mm H 7 dots 1 36 mm W x 3 1 mm H 9 dots Graphictype 1 20 mm
7. M 2 6x6 3 Temporarily mount the cutter BK L on the auto cutter unit with the supplied screw M2 6x6 Insert the projections A and B of the cutter BK L and R into the round holes on the printer mechanism to mount the auto cutter unit Engage both ends of the lock lever with the notches C and D of the hook L and R and then se tighten the screw to the cutter BKL 4 How to Open theAuto Cutter SeeFig 2 Push the handle and open the auto cutter 3 2 Reassembly Procedure Reassemble each part in the reverse order of the disassembly procedure descri bed in Section 3 1 14 CITIZEN iDP3550 3551 Service M anual 4 TROUBLESHOOTING 4 1 Troubleshooting Procedure When a trouble occurs confirm its phenomenon locate a defective part in accordance with 4 2 Troubleshooting Guide and troubleshoot as described below e Phenomenon Find a trouble phenomenon in this column If there are multiple phenomena take all the corresponding items into consideration This allows you to specify a hidden defective part e Cause Lists as many possible causes as possible Guess a trouble cause out of them and take its check method to specify the trouble cause Check Method Describes a check method to specify a trouble cause Remedy Troubleshoot by taking a remedy described in this column By troubleshooting in accordance with the above mentioned procedure you can troubleshoot ef ficiently with fewer misjudgments
8. 15 CITIZEN 4 2 Troubleshooting Guide Power Supply Failure Phenomenon No power POWER lamp not illuminated Cause The AC is not con nected iDP3550 3551 Service M anual Check M ethod Remedy Connect the AC cord to theAC outlet Not connected to the terminal block For AC230V only Connect to the terminal block Thefuseis gone Check whether any un spedfied power has been used so far Use the specified voltage Check whether the specified fuse is used Usethe specified fuse The fuse immedi ately goes again after replacing with new on The printer mechanism control assy or power PCB assy is de fecti ve The power is normally supplied when the ca bleis disconnected from the printer mechanism No operation is done Replace the mechanism printer The power is normally supplied when the cable of the power PCB assy is disconnected from the control PCB assy Replacethe control PCB assy The phenomenon does not change after the above mentioned check Replace the power PCB assy The printer mechanism or dircuit drive power is abnormal With a DC voltmeter measure the mecha nism drive voltage and circuit drive volt age Replace the power PCB assy Ifthe fuseis gone with the specified AC voltage supplied it is likely that the printer mechanism control PCB assy or power PCB assy is defective
9. 2 2 2 Xtal 501 410 X tal CST16 00MXW0C4 1 1 1 1 DSWI 5103 490 DIP SW KSD 10 1 1 1 1 DSW2 5103 510 DIP SW KSD 8 1 1 BZ MEB12C5 Buzzer MEB 12C 5 1 1 1 1 2010 960 Ele Cap 16YK100M 1 1 1 1 2 E2010 920 Ele Cap 35YK47M 1 1 1 1 3 4 17 21 25 2220 170 Cap DD308 63F104Z50 14 14 14 14 1 6 C5 7 8 E2220 110 C Cap DD104 63B102K50 3 3 3 3 C6 9 10 E2220 100 Cap DD106 63F103Z50 3 3 3 3 C11 E2220 210 C Cap DD804 63B222Z50 1 1 C11 E2220 110 C Cap DD104 63B102K50 1 1 24 CITIZEN iDP3550 3551 Service M anual iDP3550 iDP3551 2 4 C12 16 22 24 26 34 38 C12 16 22 C13 C14 C15 C23 C24 26 28 C27 C28 30 C29 C29 CP7 9 C31 C33 35 37 RAI 1 2 RA2 3 RA3 6 4 4 7 1 17 RA1 16 R2 R3 R4 18 R5 7 9 19 23 R6 8 17 24 29 R7 R8 R9 14 22 31 R10 11 15 21 30 R12 16 29 R12 R13 R13 28 E2220 170 E2220 100 E2220 100 E2220 210 E2220 120 E2010 950 E2220 200 E2220 110 E2220 100 E2220 100 E2220 170 E2010 950 E2220 200 E3500 040 E3500 080 E3500 050 E3500 040 E3500 290 E3500 050 E3500 290 C Cap Re Array Re Array Re Array Re Array Re Array Re Array Re Array Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor
10. Replace either defective one Incidentally check the wiring of the drawer and interface cable 16 CITIZEN e Printing failure Phenomenon Noprinting Cause Faulty AC supply volt age iDP3550 3551 Service M anual Check M ethod Check whether the specified AC voltage is Remedy Use the spedfied AC voltage Faulty mounting or connecti on of the printer mechanism used Check mounting and connection of the printer mechanism Mount the printer mechanism properly Faulty printer mecha Replace the printer nism mechanism Paint printout Non recommended pa Replace it with the per is used specified paper Faulty ink ribbon Check wear and tear of theink ribbon Replacethe ink ribbon Low AC supply voltage Check the supply volt Use the AC voltage age with an AC voltme within the specified ter range Missing dots Faulty connection of the Check whether Connect the printer printer mechanism printer mechanism ca mechanism cable prop ble is properly con nected Foreign substance is Check the head for Dip a cotton swab or attached to the print adhered foreign sub soft doth in ethyl alco head stance hol and wipe away the foreign substance Faulty print head Replace the print head or printer mechanism Bent ribbon mask Check whether the rib Correct the ribbon mask bon mask is bent or not to remove unwanted bending Badly
11. e Disassembly Drawing 1 22 CITIZEN iDP3550 3551 Service M anual e Disassembly Drawing 2 CITIZEN uS iDP3550 3551 Service M anual 5 3 PartsList for PCB Assy 5 3 1 Control PCB Assy 3550 01 R 3550 02 P 1 4 10 3550 10 3551 am SW1 2 E5102 450 Switch SKHHNH 2 2 2 2 IC1 404PC 10 CPU 404PC 10 1 1 1 1 IC2 107 370 M27C512B 1 1 1 1 IC3 107 350 SRAM TC55257DPL 85L 1 1 1 1 IC4 E2010610 TTLIC SN74LS14AP 1 1 1 1 IC6 E2002 670 Reset IC M51953BL 1 1 1 1 IC7 202 950 VF IC 2 2 1 1 1 7 E2010630 TTLIC SN74LS373AP 1 1 IC8 202 950 VF IC 2 2 1 1 IC8 E2010620 TTLIC SN74LS74AP 1 1 IC9 E2010101 HCMOS 1 1 1 1 0 E2016110 TTL IC SN74LS04AP 1 1 1 1 11 E2016110 TTL IC SN74LS04AP 1 1 11 E2010640 TTLIC SN74LSOOAP 1 1 IC12 E2010640 TTL IC SN74LSOOAP 1 1 1 390 300 001 F4002 1 1 1 1 2 390 370 Tr Array M54567P 1 1 1 1 TA3 E 390 230 Tr Array TA8428K 1 1 TRI x E 379 129 Transistor 2SD1292R x 1 x 1 x 1 x 1 TR2 6 12 359 090 Transistor 2SC1740SR 6 6 6 6 TR7 359 200 Transistor 2SA1458 1 1 1 1 TR8 E 358 040 Transistor RN1002 1 1 1 1 TR9 11 E 359 170 Transistor 2SC4671 AN 3 3 3 3 D1 2 x E 400 460 Diode 152076 x 2 x x 2 x 701 E406 505 17 Diode RD20EB2 1 1 1 1 LED1 2 E480 390 LED SEL2410E 2
12. 1 1 3 E6601 220 Printer Stand 2 2 4 4035 690 Ground Plate 1 1 5 E40000290 PE Mechanism Assy 1 1 6 E66201 060 Top Cabinet Assy 1 1 7 E62020390 Bottom Cabinet Assy 1 1 8 E62040550 Printer Cover Assy 1 9 E6220 220 Paper Cutter 1 10 E62040340 Printer Cover AC 1 11 E6101 115 Strain Relief Bushing HEYCO 05 1 GPN USA 11 E6101 120 Strain Relief Bushing HEYCO 1 EUR 1 EUR 12 DP 654 657 1 1 13 134 Auto Cutter Unit AC 134 E 1 14 E6310 010 Rear Cover 1 1 15 24002 560 Shield Plate 1 1 16 E77001 465 Control PCB Assy 3550 0 1 Serial EUR 1 1 16 E77001 470 Control PCB Assy 3550 0 1 Serial usa 1 1 16 E77001 475 Control PCB Assy 3550 02 Parallel 1 1 16 E77001 480 Control Assy 3551 01 Serial EUR 1 1 16 E77001 485 Control PCB Assy 3551 01 Serial USA 1 1 16 E77001 490 Control Assy 3551 02 Parallel 1 1 17 x E40000305 x Power PCB Assy 3535 03 230V x 1 x 1 17 E40000315 Power PCB Assy 3535 03 120V 1 1 30 76622579 Screw M3x6 Tapping 7 7 31 76622796 Screw 3 8 Tapping 1 1 32 76638641 Screw M3x14 Tapping with Washer 2 2 33 76672589 Screw M4x6 Tapping 2 2 34 76G42959 Screw M4x6 Tapping with Outer 1 1 Toothed Lock Washer 35 76629560 Screw M3x12 Tapping 4 4 36 76G42966 Screw M3x6 Tapping with Outer 1 1 Toothed Lock Washer 21 CITIZEN iDP3550 3551 Service M anual 5 2 Disassembly Drawing
13. 1 Service M anual 7 Removing the Paper Cutter iDP 3550 1 While widening both sides of the printer cover as shown by the arrows push the paper cutter toward you to disengage it from the two claws Claw Printer Cover Paper Cutter Reassembling the Paper Cutter iDP 3550 While facing the cutter blade away from you gently insert the paper cutter into the paper cutter mounting slit on the printer cover until it is securely hooked by the two claws Claw Printer Cover gt Cutter EZ 12 CITIZEN iDP3550 3551 Service M anual 8 Assembling the Auto Cutter AC 134 1 Notes 1 Seethe User s Manual of AC 130 Auto Cutter for specifications and detailed opera tions 2 Theprinter mechanisms that can mount the auto cutter AC 134 are as follows DP 61 DP 62 and DP 65 2 Packing List See Fig 1 1 Auto Cutter Unit AC 130 1 unit 2 HookL 1 pc 3 HookR 1 pc 4 Cutte 1 pc 5 Cutter BK R 1 pc 6 Screw M2 6x6 2 pcs 7 Lock Lever 1 pc Attached to AC 130 8 Paper Gate 1 pc Attached to AC 130 Cutter BK R Screw M2 6x6 es Auto Cutter Unit A A E Hook L G Printer Mechanism 13 CITIZEN iDP3550 3551 Service M anual 3 Assembling theAuto Cutter SeeFig 1 1 Securely insert the claws of the hook L and hook R into the square holes on the printer mechanism 2 Securely mount the cutter BK R on the auto cutter unit with the supplied screw
14. CITIZEN Service Manual Model iDP3550 3551 Dot Matrix Printer Rev 1 00 Newly issued on May 10 1999 CBM Corporation Information Systems Div iDP3550 3551 Service M anual INTRODUCTION This manual describes the disassembly reassembly and maintenance procedures of the dot im pact printer IDP3550 3551 It is intended for field maintenance men FEATURES This is a small size dot impact printer developed for various data communication terminals POS terminals kitchen use printers bank card terminals and so on Its abundant built in features allow you to widely usethis printer for different applications Pri or to using it read and understand this manual thoroughly 1 Small size light weight and low price 2 High speed print Bi directional 3 Red and black print 4 Very easy paper loading by the auto loading function 5 Paper end detecting function 6 Power supply through an AC adapter 2 CITIZEN iDP3550 3551 Service M anual CONTENTS HANDLING AND MAINTENANCE OF 0 4 000 000 nnne nennen nennen 5 SPECIEICATIONS Se titu MEME 6 2 1 222 docu edd deed aereas 6 DISASSEMBLY AND REASSEMLDB LEY 2 2 2 2 22222222 2222 292097202222092209 220922 52200222222 aan a 7 3 1 Disassembly Procedure esses en
15. Resistor Resistor Resistor Resistor Resistor Resistor Resistor Resistor DD308 63F104Z50 DD106 63F103Z50 DD106 63F103Z50 DD804 63B222Z50 DD104 63B471K50 FSOH 473Z DD104 63B101K50 DD104 63B102K50 DD106 63F103Z50 DD106 63F103Z50 DD308 63F104Z50 FSOH 473Z DD104 63B101K50 M9 1 103J M9 1 332J 5 1 103 9 1 103 5 1 332 5 1 103 5 1 332 RD25M10 1KQJ RD25M10 1KQJ RD25M10 33KQJ RD25M10 1800J RD25M10 10KQJ RD25M10 10KQJ RD25M10 1000J RD25M10 1000J RD25M10 10KOJ RD25M10 62KQJ RD25M10 62KQJ RD25M10 3 3KOJ RD25M10 3 3KOJ RD25M10 3 3KOJ RD25M10 68KOJ RD25M10 68KQJ RD25M10 330K 11 3 1 1 1 4 1 2 4 1 1 1 2 2 E 1 1 E 2 2 1 1 1 1 2 2 6 2 1 5 1 1 4 5 5 3 1 1 2 11 U Nee gt 96 5 3 4 CITIZEN 10 3550 iDP3550 3551 Service M anual iDP3551 R14 26 R27 LB1 18 23 26 E4009 510 LB19 22 LB27 CAl CA2 CNI CN2 CN3 CN4 CN4 CN4 CN4 CN4 CN4 CNS CN6 JP102 SCl REC1 4 R19 R20 R22 R24 25 R25 26 5 8 ICS PC PC 24009 510 24009 510 24900 620 24900 630 248000260 E48000940 E48000265 E48000280 E48000600 E4800 945 E48000565 E48000860 E48000855 E48000855 E48000870 Resistor Resistor Resistor Resistor Resistor Resistor Resistor Fe Beads Fe Beads Fe Beads Cord Assy Cord Assy Connector Connector Connector Connector Connec
16. W x 2 4 mm H 7 dots 1 20 mm W x 3 1 mm H 9 dots Character types Alphanumeric Katakana International characters Code page 850 860 863 865 852 866 857 Windows code Line spacing Character type 4 23 mm 1 6 inch Graphic type 2 82mm 1 9 inch Paper Ordinary paper and non carbon paper 76 H 0 5 mm W x 683 mm OD Special purpose ribbon cartridge ION Red Black or Single Color Black or Purple Interface Serial RS 232C Parallel CENTRONICS compliant Command system CBM mode STAR mode ESC POS mode The user can select the mode with the DIP switch and preset jumpers Print funcion On line self test and hex dump print function Provided by operating the power LF and SEL switches Input buffer 6K byte or 256 bytes Selectable with the DIP switch Buffer backup function Within 24 hours After 10 minutes or more of printer operation Drawer funcion 2 drawer 1 drawer switch Paper end detection Stops printing when the paper has run out Auto loading function Paper near end detection Automatically feeds the paper by several lines when it is inserted Stops printing when the paper is running out Settable with a command Auto cutter None AC 134 E Capable of partial and full cut Winder Special purpose winder AW 3 E Option that will be placed separately Supply voltage 120 V AC 10 96 50 60 Hz 230 V AC 10 50 60 Hz
17. Z npon BIETET Q AT76 DV 086 EO SESE 5 099 ZOLOLON d CITIZEN 32 iDP3550 3551 Service M anual 5 4 4 Power PCB Assv 3535 03 230V 9 5 i 270L 51 5 0 2 Nvdvf N 30VW ee ve AOSZ cJ AUDGZ VL 0 2 0620 52 0 7622 10 96 0 SEGSE 094 Q Wi ZOLOLON d 92 5571 p Duo pun a04 awos X 1052 VLAOZUAOOH Ayo jo 51060 panujo JJ en 1082 200 48 CITIZEN 33 iDP3550 3551 Service M anual DRAWING The following lists the reference drawings for maintenance and so Block diagram Circuit diagrams for the following circuits Control PCB Assy Serial Interface Control PCB Assy Parallel Interface Power PCB Assy 34 CITIZEN iDP3550 3551 Service M anual 6 1 Block Diagram OSC16MHz Parallel CENTRONICS Compliant Serial u Interface pliant Winder Control Cutter Auto mu iDP 3551 only Opti on Paper Near end Control lt Drawer lt gt x Drawer x Operation Panel 0 DIP Switc Print Head Driver Printer Mechanism a DP 654C olenoid ICC Solenoid or DP 657G Drivers Battery Mechanism Back up Control Signals PE Signal
18. blurred Faulty AC supply volt Check whether the Use the specified AC printout age specified AC voltage is voltage used Foreign substance is attached to the print head Check the head for any adhered foreign sub stance Dip a cotton swab or soft doth in ethyl alco hol and wipe away the foreign substance Bad printing qual ity Faulty paper Check whether the pa per meets the specifica tions Replace it with the specified paper Faulty ink ribbon Check wear and tear of theink ribbon Replacethe ink ribbon Low AC supply voltage Check the AC supply voltage with an AC voltmeter 175 Use the voltage within the specified range CITIZEN Faulty carriage mechanism Phenomenon Abnormal sound Cause Faulty connection ofthe head connector iDP3550 3551 Service M anual Check M ethod Check the connection of the head connector Remedy Connect the connector properly ERROR lamp illu minated The print head does not move to the home posi tion at power on or it does not move Check for any foreign substance within a movable range or any wear of the gear etc Replace the print head or printer mechanism Shear in printing The paper is jamming Turn off the power once and then on it again If there is a shear in printing replace the printer mechanism Faulty AC supply volt age Check whether the specified AC vo
19. ltage is supplied with an AC voltmeter Use the spedfied AC voltage Foreign substance in the gear Remove the printer mechanism and check for any foreign sub stance caught in the gear head motor gear or print head moving part Eliminate the foreign substance Broken gear Remove the printer mechanism and check for any breakage of the gear head motor gear or print head moving part 18 If broken replace the printer mechanism CITIZEN Paper feed failure Phenomenon Paper is not fed or fed irregularly e Faulty sensors Phenomenon Does not detect presence of paper Cause Faulty connection of the motor connector iDP3550 3551 Service M anual Check M ethod Check connection of the motor connector Remedy Connect the connector correctly Defective motor Measure the supply voltage with a DC volt meter oscilloscope If the supply voltage is normal replace the mo tor printer mecha nism Paper feed failure Paper jam Check whether or not the paper is jamming or torn and caught in the paper path Eliminate unnecessary paper in the paper path and set paper properly Low AC supply voltage Check the AC supply voltage with an AC voltmeter Use the spedfied AC voltage Foreign substance in the gear Remove the printer mechanism and check for any foreign sub stance caught in the gear or motor gear Eli
20. minate the foreign substance Broken gear Cause Faulty paper sensor Remove the printer mechanism and check for any breakage of the gear or motor gear Check M ethod Replace the printer mechanism and check if the replaced one func tions properly Check whether the ER ROR lamp flickers when paper is out If broken replace the printer mechanism Replace the mechanism printer Foreign substance etc caught by the sensor Check for any foreign substance Eliminate the foreign substance Does paper status not detect near end Faulty paper near end sensor Replace the paper near end sensor Faulty connection of the paper near end sensor Check connection of the connector Connect the connector correctly Foreign substance etc caught by the sensor Check for any foreign substance Eliminate the foreign substance If theno paper condition is not detected whilethe printer is running out of the recording paper it will print without the paper leading to a trouble of the head and so on 19 CITIZEN e Faulty auto cutter iDP3551 only Phenomenon Does not cut paper Cause Faulty connection of the motor connector iDP3550 3551 Service M anual Check M ethod Check connection of the motor connector Remedy Connect the connector correctl y Faulty AC supply volt age Check whether the specified AC voltage is s
21. ne enne nnne nnne enne nnne entente nnne nnne 7 3 2 RedssembLy POC SOU Cac wrt sete ei ee 14 TROUBEESHOOTIN GSS na A ee 15 4 1 Troubleshooting Procedure U nnne nnns 15 4 2 hroubleshooting 16 21 5 1 PartsList for gt 21 5 2 Disassembly 11 11 120 0 01 0 106 nennen nnne nnne nennen nennt e nnne nnne nnns 22 5 3 Parts ANTE 24 5 3 1 Control PCB Assy 3550 01 R 3550 02 P aan 24 5 3 2 Power Assy 3535 3 28 5 4 Parts Layout DEaWITIQ iade rade 30 5 4 1 Control Assy 3550 01 Serial Interface D sub 25 30 5 4 2 Control Assy 3550 02 Parallel Interface 31 5 4 3 Power Assy 3535 03 120 32 5 4 4 Power Assy 3535 03 230 0 204422 4 33 coh e 34 6 1 Diagramm chiara cic ica yayay ya kayka 35 6 2
22. ng of the power cable from the chassis with a special tool round nose pliers or a similar tool 3 Removethe following four screws and detach the power board by lifting it upward while pulling out the power switch from the chassis e Two screws M 4x6 that fasten the transformer One screw 3x8 that fastens the heat sink One screw with outer toothed washer M4x6 that fastens the earth lug of the power cable Strain Relief Bushing 7 Power Switch E CITIZEN iDP3550 3551 Service M anual 5 Removing the PE Sensor Assembly 1 Remove the chassis assembly and the printer mechanism 2 3 4 Disconnect the one connector from the control board Peel off the vinyl tape from the chassis Slide the PE sensor assembly in the direction until its hooks come off the chassis and then remove it by turning it in the direction Connector n Vinyl Tape Chassis PE Sensor Assy p gt 10 CITIZEN iDP3550 3551 Service M anual 6 Removing theAuto Cutter AC 134 1 2 pom gens wm Remove the top cabinet Cut the cable tie to set the cable of the auto cutter AC 134 that is fastened to the printer mechanism free Disconnect the one connector from the control board Loosen not remove the one screw M 2 6x6 and disengage both cutter BK from the cutter BK mounting holes on the printer mechanism chassis to remove the auto cutter _11 CITIZEN iDP3550 355
23. tor Metal Stay Screw Metal Stay Screw Connector Connector Jumper Switching Connector Receptacle Receptacle IC Socket PCB PCB RD25M10 330K 1 50 1W 1 50 1W RD25M10 4 7KOJ RD25M10 10KQJ RD25M10 10KQJ RD25M10 330K BLO2RN1 A62 BLO2RN1 A62 BLO2RN1 A62 25 0371 25 0372 B5P SHF 1AA 5267 02A X 5045 04A FCN 674J025 L C 57GE 40360 751 17L 002A M2 6x12 ZNP 17L 002C UNC 4 40x 12 ZNP 5267 04A X JACK 285D 9660J 101 0 7mm 10mm 00 8261 24 33 10 806 20 8261 0249 06 807 20 8261 0249 06 807 87 2806504 3550 01 3550 02 22 1 1 1 1 1 1 2 22 JPN EUR 2 JPN EUR 2 USA 2 USA 1 1 2 2 JPN EUR 26 CITIZEN iDP3550 3551 Service M anual 4 4 Screw M3x10 ZNP C 2 2 Screw M3x8 B 506 2 2 2 2 Nut M3 ZNP C 2 4 2 4 E8035 010 Insu Lock T18S 1 1 1 1 IC2 ROM Label PDL 65 x 1 x 1 x 1 x 1 27 CITIZEN 5 3 2 Power PCB Assy 3535 03 iDP3550 3551 Service M anual NF IC1 IC2 DS1 DS2 C1 2 C5 C6 C7 C8 C10 C11 R1 R2 R3 R4 CNI CN5 F1 3 Fi SW Transformer Transformer Power Cord Power Cord Noise Filter Regulator Regulator Transistor Diode Stack Diode Stack Film Cap Ele Cap C Cap Ele Cap Ele Cap Ele Cap Ele Cap Mylar Cap Resistor Resistor Resistor Resistor Connec
24. tor Terminal Fuse Fuse Heat Sink Switch 25 0289 120V 25 0290 230V 25 0184 120V 25 0185 230V PLAA3221RODOI M5231TL uPC2405AHF 2581340 2KBP02M 2 PHE830M 63PNJ 2200A 25x25 DD804B101K50 5 5 11 35 470 10 16 SME16VB 3300M 5 01 DMY21H104 RD25T 26 3300 RD25T 26 5600 SNIAK2ET26A20KO SN14K2ET26A1 54KO F5P SHVQ GSK801 235001 218500 50 0079 SF W1P1A 01BB2 28 CITIZEN iDP3550 3551 Service M anual 2 2 FH2 Adhesive Tape 610mm L 10mm Jumper 0 7mm L 18mm Screw M3x8 B Tight Znp c Screw M3x8 B Tight B 567 Fuse Holder F218P PCB 3535 03 Cord Bushing SR 4N 4 Cord Bushing SR 5N 4 Tie CV 075 N e N e 29 CITIZEN 5 4 Parts Layout Drawing 5 4 1 Control PCB Assy 3550 01 Serial Interface D sub 25 30172735 iDP3550 3551 Service M anual CXHNHH2S ge Nele LUIS 13 2 FCN 674J025 L C 5 550 01 gt aa co Swi Sw2 LI CE Cmm C330 mmo 3 cn CO u Cri hd Crj CR DD SN74L5146AP o 74LS04AP 7 7 8 SN74LSODAP _ 5 1 103 gt 8 GOS cx 9 SP232ACP u a EF
25. upplied with an AC voltmeter Use the specified AC voltage Defective motor Measure the supply voltage with a DC volt meter or oscilloscope If the supply voltage is normal replace the mo tor auto cutter Paper feed failure Paper jam e Faulty winder When AW 3 is used Phenomenon Does not wind pa per Paper end is not cor rectly inserted into the slit of the winder reel Check whether or not the paper is jamming or torn and caught in the paper path Check Method Eliminate unnecessary paper in the paper path and set paper properly Insert paper into the slit correctly Faulty connection of the motor connector Check connection of the motor connector Connect the connector correctly Faulty AC supply volt age Check whether the specified AC voltage is supplied with an AC voltmeter Use the specified voltage Paper feed failure Paper jam Check whether or not the paper is jamming torn and caught in the paper path Eliminate unnecessary paper in the paper path and set paper properly Defective motor Measure the supply voltage with a DC volt meter or oscilloscope 20 If the supply voltage is normal replace the motor assy AW CITIZEN iDP3550 3551 Service M anual 5 SERVICE PARTS LIST 5 1 PartsList for Mechanism EXPLODED VIEW 11 IDP3550 IDP3551 1 E4002 430 Chassis 1 1 2 Vinyl Tape
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