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FS-1020D Service Manual

1. 5 B E s A o mw A os d 1O g 2 D LL Side cover Right cover the chassis remove the left cover Left cover 1 Unlatch the six snaps and two hook holes on 3 Removing the left cover Figure 1 5 4 Removing the right cover 1 5 4 2FM 1 5 4 Removing the feed roller CAUTION When refit the feed roller fit the D cut shaft into the D shape hole of the feed roller 1 Remove the paper cassette and the process unit See page 1 5 2 2 Stand the machine the front side up 3 Move the feed roller in the direction and remove the feed roller Figure 1 5 5 Removing the feed roller 2FM 1 5 5 Removing the MP feed roller 1 Remove the engine board See page 1 5 9 2 Remove one screw 3 Remove the grounding plate 4 Remove one stop ring 5 Remove the MP feed clutch MP feed clutch Stop ring Figure 1 5 6 Removing the MP feed clutch 2FM 6 Remove one screw 7 Remove the toner sensor and spring 8 While pressing the latch by using the driver and then remove the paper guide 9 Remove two screws and then remove the MP feed unit Paper guide Screw JJ a RS 2 va cce LES p NG SE Sf Figure 1 5 7 Removing the MP feed unit 10 Remove one stop ring and then remove the MP feed roller Stop ring MP feed roller MP feed unit Figure 1 5 8 Removing the MP feed roller 2FM 1 5 6 Removin
2. i C 2 Ss e7 Figure 1 5 29 Removing the LSU shield 1 5 28 2FM 4 Remove three screws 5 Remove two connectors from the laser scanner unit 6 Remove the laser scanner unit When refitting the laser scanner unit tighten a screw in order of 3 from 1 Figure 1 5 30 Removing the laser scanner unit 1 5 29 2FM 7 Remove the eraser lamp 1 5 31 Removing the eraser lamp 1 5 30 2FM 1 5 11 Removing the main charger unit 1 Remove the process unit from the printer See page 1 5 2 2 Unlatch the three snaps and remove the main charger cap 3 Draw the main charger unit in the direction of arrow then pull it out in the direction of arrow B Main charger unit Main charger cap Figure 1 5 32 Removing the main charger unit CAUTION When refitting the main charger unit hold terminal down C then push frontwards Use care not to deform the terminal 1 5 81 2FM 1 6 1 Upgrading the firmware on the main board Updating the system controller firmware is possible by downloading the firmware through the parallel interface or through the memory card CompactFlash These firmware programs are directly overwritten in the system DIMM KP 1050 Flash ROM type only on the main board The operator panel message in different languages can also be downloaded through the parallel interface or through the memory card 1 Firmware program data format Kyocera supplies the followin
3. Completion of the machine installation 1 3 1 2FM Unpack Figure 1 3 1 Unpacking D Printer 2 Power cord 3 Installation guide 4 Toner container Cleaning cloth 6 CD ROMs Extension tray For U S A only 1 3 2 m Remove the tape and protective packing 1 Remove the two tape Figure 1 3 2 2 Pull the cassette out of the printer 3 Remove the protective packing from inside the cassette Protective packing Cassette Figure 1 3 3 1 3 3 2FM r Install a toner container 1 Open the front top cover 2 Move the lock lever until it is in its unlocked position marked UNLOCK 3 Shake the toner container horizontally back and forth five or six times so that the toner inside of it becomes evenly distributed 4 Remove the orange protective seal 1 3 4 Lock lever Front top cover Figure 1 3 4 Toner container Protective seal Figure 1 3 6 2FM 5 Set the toner container into the process unit Toner container Process unit F Figure 1 3 7 Toner container 6 Push in on the areas of the toner container marked PUSH HERE until the container clicks into place in the process unit Figure 1 3 8 7 Push the lock lever back into its locked positi
4. General prohibited action OO Disassembly prohibited indicates that action is required The specific action required is shown inside the symbol General action required Remove the power plug from the wall outlet Always ground the copier CAS 1 Installation Precautions WARNING Do not use a power supply with a voltage other than that specified Avoid multiple connections to one outlet they may cause fire or electric shock When using an extension cable always check that it is adequate for the rated current usine Connect the ground wire to a suitable grounding point Not grounding the copier may cause fire or electric shock Connecting the earth wire to an object not approved for the purpose may cause explosion or electric shock Never connect the ground cable to any of the following gas pipes lightning rods ground cables for telephone lines and water pipes or faucets not approved by the e gelen TEE ne oder deh en dr CAUTION S Do not place the copier on an infirm or angled surface the copier may tip over causing injury Do not install the copier in a humid or dusty place This may cause fire or electric shock S Do not install the copier near a radiator heater other heat source or near flammable material RTE MAY CAUSE Ipfc CE Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool S as possible Insufficient ventilation may
5. Y Y Replace engine board Replace engine board KP 1046 See page 1 Turn power switch on KP 1046 See page 1 5 9 5 9 Yes Y Turn power switch on OK oc No No Yes i Yes OK Replace harness 2DC2714 between End No main board and laser scanner unit End Turn power switch on Replace harness Yes 2FM2602 between main oc board and engine board No Replace harness 2FM2602 between main board and engine board 1 4 7 2FM Error indications Contents Fuser unit error Check procedures corrective measures 1 4 8 Turn power switch off and remove power cable Detach connector CNA on power supply board Measure resistance between pins 1 and 2 of the detached connector Open infinite Detach connector CN1 on power supply board Measure resistance between pins 1 and 3 of the detached connector No Open infinite Replace fuser thermistor See page 1 5 25 Replace thermal cutout or heater lamp See page 1 5 26 or 1 5 22 Replace engine board KP 1046 See page 1 5 9 6000 error shown Replace harness 2FM2601 between engine board KP 1046 and bias board KP 1051 6000 error shown Replace bias board or high voltage board or power supply board See page 1 5 13 or 1 5 12 2FM Error indications Con
6. replace the thermistor Dirty sensor part of the thermistor Check visually and clean the thermistor sensor parts 10 Main charging is not performed Broken main charger wire Leaking main charger housing Poor contact in the high voltage board connector terminals Defective engine board KP 1046 Defective high voltage board See page 1 4 14 11 Transfer charging is not performed Poor contact in the high voltage board connector terminals Defective engine board KP 1046 Defective high voltage board See page 1 4 14 12 A paper jam in the paper feed or exit section is indicated when the power switch is turned on A piece of paper torn from copy paper is caught around registration sensor or exit sensor Check and remove if any Defective registration sen sor Replace registration sensor if indication of the corresponding sensor is not light Defective exit sensor Replace exit sensor if indication of the corresponding sensor is not light 1 4 19 2FM Problem Causes Check procedures corrective measures 13 The LED indicator requesting cover to be closed is dis played when the front cover is closed Poor contact in the con nector terminals of inter lock switch Reinsert the connector Also check for continuity within the con nector cable If none remedy or replace the cable Defective
7. 1 6 3 2FM 4 Downloading errors The following downloading errors are indicated on LED indicators when an error occurred during downloading the firmware data Download finished normally LED indicators LED indicators Description Cause Download errors Corrective action CH NA Y Convention Red i Slow O O flashing ae s Fast i Q Q flashing We O e d i el 84 D oo Lo Download data error Deficit of a file header Data header version error Obtain normal firmware O xt S i e System download error Incompatibility of firmware and system DIMM board Defective system DIMM board Confirm whether the firmware conforms to this printer Replace the system DIMM board Download receiving error Improper connection of parallel cable between PC and printer Defective parallel cable Check the contact between PC and printer s interface connector Replace parallel cable If the corrective action above does not solve the problem replace engine board KP 1046 See page 1 5 9 1 6 4 2 1 1 Paper feeding system 2FM The paper feeding system picks up paper from the cassette MP tray or if installed the paper feeder feeds it in the copier and delivers in the output tray Paper is fed at the precise timing in synchronization with data processing The paper feeding system finally deliv
8. 10 32 5 C 50 90 5 F 2 Humidity 20 80 RH 3 Power supply 120 V AC 7 1A 220 240 V AC 3 8 A 4 Power source frequency 50 Hz 0 3 60 Hz 0 396 5 Installation location Avoid direct sunlight or bright lighting Ensure that the photoconductor will not be exposed to direct sunlight or other strong light when removing paper jams Avoid extremes of temperature and humidity abrupt ambient temperature changes and hot or cold air directed onto the machine Avoid dust and vibration Choose a surface capable of supporting the weight of the machine Place the machine on a level surface maximum allowance inclination 1 Avoid air borne substances that may adversely affect the machine or degrade the photoconductor such as mercury acidic of alkaline vapors inorganic gasses NOx SOx gases and chlorine based organic solvents Select a room with good ventilation 6 Allow sufficient access for proper operation and maintenance of the machine Machine front 50 mm 1911 6 Machine rear 40 mm 153 4 Machine right 25 mm 97 s Machine left 25 mm 97 8 Machine above 30 mm 1 113 16 1 2 1 2FM 1 3 1 Unpacking and installation 1 Installation procedure C Start Y Unpack Y Remove the tape and protective packing Y Install a toner container Y Connect the printer cable and power cord Y Load paper Y Inisializing the pirnter and make test print Y
9. 5 Remove the controller box with main board Controller box with main board Screws Figure 1 5 11 Removing the controller box with main board 1 5 10 2FM 6 Remove two screws at the back of the main board 7 Remove three screws from the parallel interface connector and USB connector 8 Remove the main board Screws USB interface connector Parallel interface Kaz connector Screws Controller box Qj Figure 1 5 12 Removing the main boar 1 5 11 2FM 3 Removing the power supply board and high voltage board 1 Remove the process unit See page 1 5 2 2 Remove the left cover See page 1 5 4 3 Remove three connectors from the power supply board 4 Remove nine screws 5 Remove the power supply board and high voltage board Note The high voltage board is directly connected to the bias board 6 Separate the high voltage board from the power supply board S a onnectors EDA x SE E LANG Screws Screws Figure 1 5 13 Removing the power supply board and high voltage board 1 5 12 2FM 4 Removing the bias board 1 Remove the cassette and process unit See page 1 5 2 2 Remove the left cover See page 1 5 4 3 Remove the power supply board and high voltage board See the previous page 4 Turn the machine with the bottom side up 5 Remove the one stop ring and then remove the roller guide 6 Remove two axis pi
10. 5 Transfer The image developed by toner on the drum A is transferred onto the paper because of the electrical attraction between the toner itself and the transfer roller B The transfer roller is negatively biased so that the positively charged toner is attracted onto the paper while it is pinched by the drum and the transfer roller Transfer bias e AL CN2 A5 Geer RES YC T CN2 A7 YC12 14 PSEL1 4 CN2 A8 YC12 11 High voltage board Bias Engine board board CN2 A6 RTHVDR Figure 2 1 12 Transfer The nominal transfer bias is set to approximately 1 8 kV limit with the 6 mA current Since the ideal potential of the transfer bias depends on the thickness of paper the bias is raised to approximately 2 5 kV 6 mA for thicker paper On the other hand the bias current is reduced to 1 8 kV 6 mA for thin paper 2 1 12 2FM 6 Fusing The toner on the paper is molten and pressed into the paper as it passes between the heat roller and the press roller in the fuser unit Figure 2 1 13 Fusing The heat roller has a halogen lamp inside which continuously turns on and off by the thermistor to maintain the constant temperature onto the heat roller surface The heat roller is resin coated by florin to prevent toner from accumulating on the roller after a long run Care must be taken while handling the heat roller not to
11. Dirty main charger wire Replace the process unit 1 4 15 2FM 9 Black dots appear Causes on the image 1 Dirty or flawed drum 2 Dirty contact glass 3 Deformed or worn cleaning blade Causes Check procedures corrective measures 1 Dirty or flawed drum Replace the process unit 2 Dirty contact glass Clean the contact glass 3 Deformed or worn cleaning blade Replace the process unit 10 Image is blurred Causes 1 Deformed press roller 2 Paper conveying section drive problem Causes Check procedures corrective measures 1 Deformed press roller Replace the press roller see page 1 6 26 2 Paper conveying section drive problem Check the gears and belts and if necessary grease them 11 Paper creases Causes 1 Paper curled 2 Paper damp Check procedures corrective measures 1 Paper curled Check the paper storage conditions 2 Paper damp Check the paper storage conditions 1 4 16 2FM 12 Offset occurs Causes 1 Defective cleaning blade Causes Check procedures corrective measures 1 Defective cleaning blade Replace the process unit 13 Image is partly miss Causes ing 1 Paper damp 2 Paper creased 3 Flawed drum Check procedures corrective measures 1 Paper damp Check the paper storage conditions 2 Paper creased Replace the paper 3 Flawed drum
12. MPFSOL HANDSN FEDDRN 2FM 2 Paper feeding mechanism Driving power train C From process unit drum To transfer roller pP Figure 2 1 3 Paper feeding mechanism 2 1 3 2FM 2 1 3 Electrophotographic system Electrophotography is the technology used in laser printing which transfer data representing texts or graphics objects into a visible image which is developed on the photosensitive drum finally fusing on paper using light beam generated by a laser diode This section provides technical details on the copier s electrophotography system 1 Electrophotographic cycle The electrophotography system of the copier performs a cyclic action made of six steps as follows Each step is technically explained in the following sections Laser scaner unit Process unit D Main charging Drum 6 Cleaning V 3 Developing Fuser unit Figure 2 1 4 Electrophotographic cycle The sections for main charging exposure drum developing and cleaning are modularized in one Process unit 2 1 4 1 1 Process unit mechanism 2FM Driving power train amp For drum From main unit For toner container developing roller etc From main unit For main unit Transfer roller For toner container Figure 2 1 5 Process unit mechanism CD Main charger unit 2 Charger wire 3 Grid Developing roller 5 Gear Z14 Z18 6 Gear Z14 Z36 Ge
13. U06 PDATA7 0 NSELIN PNSTROB NAUTOFD PNINI PNACK PPERROR PSELECT PFAULT PBUSY PPDATA8 YC4 Parallel VF lt YC5 DTR TXD La DSR RXD RSSEL Power Source YC6 5V SGND SCKN SO PLGCLK SBSY SI SDIR EGIRN PDMASKN RESIN OUTPEN LVDATA E T VDFONSPL PDN YC8 DBTXD Debug DBRXD DBCLK U01 PowerPC405 266 MHz RISC processor Core ASIC EBA22 1 EBIU Address Bus EBCSNO 1 EBOENO EBWENO DIMM Slot 1 Core ROM EBD31 0 EBCSN4 OPRDY IORN IOWN DMAACKN EBA15 1 Optinal OPRSTN interface DMAREQ OPACKN OPIRN SUO LM EBD31 16 Le 3 3V EBCSN2 EBA22 EBA10 1 EBOEN1 EBWEN1 CDWAITN CDET Optional Le memory CDRST card EDB31 16 MERE EBA22 1 EBCSNO EBOEN2 EBD31 16 i U03 EBA20 1 API EBCSN1 EBOEN2 ROM socket EBD31 16 EBD31 0 EBIU Data Bus SDA12 0 SDRAM Address Bus SDA11 0 RASN DQML DQMU YS2 SDD31 0 SDD15 0 SDA12 0 IICSCL IICSDA Optional DIMM slot SDCLK P s DCLK Spe e U05 SDCSN1 2 SDD31 16 SDCSNO SDD31 SDRAM Data Bus U10 5V1 3 3V1 3 3V Regulator FT Figure 2 3 1 Main board circuit block diagram 2 3 1 2FM 2 3 2 Engine board Engine board
14. la SLEEP SLEEP 24V2 424V2 24V1 24V2 24V2 24V3 24V3 5V 5V T 45V T 45V Regist RESIT Power ration supply sensor S board SR Casette SWIN Switch gt RTHVDR HVISEL MHVDR1 MHVD2 PSEL1 THVDR FAN1 FAN FAN2 L HEATN HEATN ZCROSS ZCROSS EXTIN THERM EXTIN THERM 24V2 275 V DC AC HVCLK Developing roller Developing bias output circuit Figure 2 3 7 Bias board circuit block diagram 2 3 7 2FM 2 3 5 High voltage board The high voltage board contains the high voltage output circuit interlock switch circuit as well as providing a liaison connection with the power supply board bias board and the engine board High voltage board Bias board 24V3 Main Engine board in hi gl Se charger MHVDR1 control 3 ps MHVDR2 circuit IC1 Transfer A roller RTHVDR Main high THVDR voltage control PSEL1 circuit 1 HVSEL IC51 24V3 24V2 24V2 24V2 Interlock switch 24V1 Power o Oa supply SLEEP board FAN HEATN ZCROSS THERM EXITN 45V Figure 2 3 8 High voltage board circuit block diagram 2 3 8 2FM 1 Interlock switch The interlock switch is located on the high voltage board and opened and closed in conjunction with the front cover or the front top cover via the interlock lever This switch connects and disconnects the 24 V DC power supply line If the front cover
15. Aluminum cylinder Figure 2 1 10 Drum surface potential 2 1 10 2FM 4 Development The latent image constituted on the drum is developed into a visible image The developing roller contains a 3 pole S N S magnet core B and an aluminum cylinder rotating around the magnet core B Toner attracts to the developing roller A since it is powdery ink made of black resin bound to iron particles Doctor blade magnetized by magnet D is positioned approximately 0 3 mm above the developing roller A to constitute a smooth layer of toner in accordance with the roller revolution e C i A 0 3 0 4 mm Magnetism 10 mm Developing Bias Engine board bias output board 275 5 V DC A YC B HVCLK YC302 10 YC7 7 Figure 2 1 11 Development The developing roller is applied with the AC weighted positive DC power source Toner E on the developing roller is given a positive charge The positively charged toner is then attracted to the areas of the drum E which was exposed to the laser light The gap between the drum E and the developing roller is approximately 0 3 mm The non exposed areas of the drum F repel the positively charged toner as these areas maintain the positive charge The developing roller is also AC biased to ensure contrast in yielding by compensating the toner s attraction and repelling action during development 2 1 11 2FM
16. Drive Norcross Georgia 30093 TEL 770 729 9786 FAX 770 729 9873 Southwestern Region 2825 West Story Road Irving Texas 75038 5299 TEL 972 550 8987 FAX 972 570 4704 Dallas Parts Distribution Center amp National Training Center 2825 West Story Road Irving Texas 75038 5299 TEL 972 659 0055 FAX 972 570 5816 2003 KYOCERA MITA CORPORATION http www kyoceramita com Co KYOCERA is a trademark of Kyocera Corporation mifa isa registered trademark of KYOCERA MITA CORPORATION Printed in U S A
17. as affected by the HEAT signal is made in synchronization with the zero cross signal ZCROSS which is generated by the power supply unit The zero cross signal detector watches the transition of alternating plus and negative current and detects the zero crosses This detector derives the resultant ZCROSS signal at its pin 43 of the engine CPU U1 Since abrupt change in the current flow can be significantly avoided by synchronizing triac TRCA with the zero cross signal the possibility of noise due to the primary AC supply is greatly reduced CPU U1 selectively switches among those variations for applying voltages to the heater lamp according to the THERM signal which appears at pin 33 as feedback A fraction of THERM is applied to pin Z2 of comparator U4 1 The comparator maintains comparison of the potential at pin 2 and pin Z3 which gives a reference for the possible anomaly in the heater temperature bred by resistors R44 and R40 Should the voltage at pin 2 exceed that at pin 33 the level at pin 1 becomes low Since pin 1 is wired via transistor array QA4 to the output line for the HEAT signal the HEAT signal is enforced to be low regardless the behavior of CPU U1 thus preventing possible heat overrun Engine board 33 THERMA P10 ANIO rs T Heater lamp control circuit 45V GND QA4 Q10 Iud
18. e 1 04 O 3 ONE enver envers UU LO9CN4C 2 4 3 2FM Repetitive defects gauge First occurrence of defect 25 mm Upper registration roller 88 mm Lower registration roller 50 mm Transfer roller r 61 mm Heat roller Press roller Fuser unit 63 mm Developing roller Process unit 94 mm Drum Process unit 2 4 4 KYOCERA MITA EUROPE B V Hoeksteen 40 2132 MS Hoofddorp The Netherlands Phone 31 0 20 654 000 Home page http www kyoceramita europe com Email infoGkyoceramita europe com KYOCERA MITA NEDERLAND B V Hoeksteen 40 2132 MS Hoofddorp The Netherlands Phone 31 0 20 587 7200 KYOCERA MITA UK LTD 8 Beacontree Plaza Gillette Way Reading Berks RG2 OBS UK Phone 44 0 118 931 1500 KYOCERA MITA ITALIA S P A Via Verdi 89 91 20063 Cernusco sul Naviglio Italy Phone 39 02 92179 1 S A KYOCERA MITA BELGIUM N V Hermesstraat 8A 1930 Zaventem Belgium Phone 32 0 2 720 9270 KYOCERA MITA FRANCE S A Parc Les Algorlthmes Saint Aubin 91194 GIF SUR YVETTE France Phone 33 0 1 6985 2600 KYOCERA MITA ESPANA S A Edificio Kyocera Avda de Manacor N 2 Urb Parque Rozas 28290 Las Rozas Madrid Spain Phone 34 0 91 631 8392 KYOCERA MITA FINLAND OY Kirvesmiehenkatu 4 00810 Helsinki Finland Phone 358 0 9 4780 5200 KYOCERA MITA SCHWEIZ AG Holzliwisen Industriestrasse 28 8604 Volketswil S
19. fire Toner may cause sparks when exposed directly to S fire Ira TUN ACE tC ce rtu RE a a aAa eb der lta aie e Naa Should smoke be seen coming from the copier remove the power plug from the wall outlet lulu E 3 Miscellaneous WARNING Never attempt to heat the drum or expose it to any organic solvents such as alcohol other than S the specified refiner it may generate toxic gas 1 1 1 Specifications Printing system Printing speed Paper feed system Paper loading capacity Paper eject system Standard memory Additional memory Photoconductor Charging system Developing system Transfer system Charge erasing system Cleaning system Controller hardware 2FM Desktop Indirect electrostatic system Cassette Plain paper 60 90 g m thick paper mode 90 105 g m MP tray Plain paper 60 90 g m thick paper mode 90 163 g m Special paper Transparencies letterhead colored paper recycled paper Note Use the MP tray for special paper A4 210 297 mm B5 182 257 mm A5 148 210 mm Letter 81 2 11 Legal 81 2 14 Folio 210 330 mm Oficio Il 216 330 mm Non standard size 148 to 210 mm x 210 to 297 mm cassette 70 to 216 mm x 148 to 297 mm MP tray Simplex printing 20 pages min A4 plain 21 pages min Letter plain Duplex printing 10 pages min A4 Letter plain Note When printing multiple copies of th
20. fragile Handle it with great care CAUTION The heater lamps are fragile Use extreme care when handling not to drop or break Do not directly touch on the heater lamp Finger prints on the heater lamp s outer surface can prevent proper fusing of toner on paper When holding When refitting the heater lamp direct the short distance side from the projection in the middle of the lamp facing the machine s left side 1 Remove and split the fuser unit See page 1 5 19 2 Remove all four separation claws See previous page 3 Remove two screws 4 Remove the heater lamp from the heat roller Heater roller L Heater lamp Machine left side Projection Machine right side Figure 1 5 23 Removing the heater lamp 1 5 22 2FM 3 Removing the heat roller WARNING The heat roller is extremely hot immediately after the printer was running Allow substantial period of time until it cools down 1 Remove and split the fuser unit See page 1 5 19 2 Remove the heater lamp See previous page 3 Press the lamp A holder away from the heat roller Pull up both heat R bush and heat L bush at the same time Heat L bush Heat roller Heat R bush Figure 1 5 24 Removing the heat R bush and heat L bush 1 5 23 2FM 4 Remove the heat gear Z33 heat R bush and heat L bush from the heat roller Heat L bush Heat roller Heat R bush Heat gear Z33 Figure 1 5 25 Removing the heat roller 1 5
21. or the front top cover is open the interlock switch is open and the 24 V DC to the high voltage output circuit bias board engine board and the power supply board is disconnected deactivating the high voltage output laser output main motor output for safety The cooling fan is an exception Since the cooling fan is directly fed with 24 V DC from the power supply unit at the primary side 24V1 of the interlock switch the cooling fan is not deactivated even the cover is open Front top cover hs Ve Projection Interlock lever Projection Engine board 4 n 3 Bias 4 board N Front cover 24V2 24V3 Power supply unit High voltage output circuit Triac etc ae 24 V DC 24V1 output High voltage board EE Machine left side view Cooling fan Figure 2 3 9 Interlock switch 2 3 9 2FM ing lex print Simp Paper cassette feeding A4 81 2 x 11 paper iming chart No 1 T wdd oppe peeds Bunuug s ww 00 461 peeds Buipee 1ede4 S WW Q6 ZLL peeds wniq i l 628 820 6 8 eeze l 0104 ouer OLOY OLEL L i 800 00 i E8004 i i L i 1 1 1 1 f 6088 pet i b evel 10067 vct O0SL 1 D 1 i 1009 gor O0SL geg l i 00b 008 O0rL 008 i d DM soos HT DS ws i
22. scratch the roller surface as doing so may result in print problems The heat roller has four claws which are continuously in contact with its surface These claws prevent the paper on which toner has been fused from being wound around the heat roller causing paper jam The pressure roller is made of the heat resistant silicon rubber This roller is used to strongly press the paper towards the heat roller by means of coil springs The temperature of the heat roller is constantly monitored by the engine board using the thermistor and triac Should the temperature of the heat roller exceed the predetermined value the thermal cutout is activated to effectively disconnect the heater halogen lamp from power 2 1 13 2FM 6 1 Fuser unit mechanism 2 1 14 Figure 2 1 14 Fuser unit mechanism D Heat roller 6 Press roller Heater lamp Thermal cutout Separator s Exit pulley s Lower exit roller 2FM 7 Cleaning After the transferring process the drum needs to be physically cleaned of toner which is residual after the development process The cleaning blade is constantly pressed against the drum B and scrapes the residual toner off to the sweep roller The waste toner is collected at the output end of the sweep roller C and sent back to the toner container into the waste toner reservoir D Figure 2 1 15 Drum cleaning and erasing static charge After the drum B is physically cleaned it t
23. unit 3 Flawed drum Replace the process unit 1 4 14 2FM 6 A black line appears Causes longitudinally Contaminated main charger wire Dirty or flawed drum Deformed or worn cleaning blade Deceftive magnet roller in the process unit D Check procedures corrective measures 1 Contaminated main charger wire Clean the main charger wire by pulling the green colored cleaning knob in and out several times 2 Dirty or flawed drum Replace the process unit 3 Deformed or worn cleaning blade Replace the process unit 4 Deceftive magnet roller in the process unit Replace the process unit 7 A black line ap Causes pears laterally Defective process unit s grouniding Flawed drum Dirty developing section Leaking main charger housing ROM Causes Check procedures corrective measures 1 Defective process unit s grouniding The drum axle in the process unit and its counter part the grounding tab in the printer must be in a good contact If necessary apply a small amount of electro conductive grease onto the tab 2 Flawed drum Replace the process unit 3 Dirty developing section Replace the process unit 4 Leaking main charger housing Replace the process unit 8 One side of the Causes copy image is 1 Dirty main charger wire darker than the other Causes Check procedures corrective measures 1
24. unit installation Check that the process unit is inserted correctly 2 No transfer charging Check the transfer bias output on the high voltage board This requires removal of the left cover and the test equipment Replace the high voltage board if high voltage potential is not available on the board See page 1 5 12 3 Defective laser scanner unit Causes No main charging 2 No image appears entirely black 1 1 No main charging The scanner components within the scanner may be disordered Replace the laser scanner unit if necessary See page 1 5 28 Check procedures corrective measures A Broken main charger wire Replace the process unit B Leaking main charger housing Replace the process unit C The connector terminals of the high voltage board make poor contact D Defective engine board KP 1046 Reinsert the connector Also check for continuity within the connector cable If none remedy or replace the cable Replace the engine board KP 1046 and check for correct operation E Defective high voltage board 3 Image is too Causes light 1 Insufficient toner Causes Replace the high voltage board and check for correct operation 2 Deteriorated developer 3 Dirty or deteriorated drum Check procedures corrective measures 1 Insufficient toner If the add toner indicator lights replace the toner container 2 Deter
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26. 2 Phone 67418733 KYOCERA MITA HONG KONG LIMITED 11 F Mita Centre 552 566 Castle Peak Road Tsuen Wan New Territories Hong Kong Phone 24297422 KYOCERA MITA TAIWAN Corporation 7F 1 2 No 41 Lane 221 Gangchi Rd Neihu District Taipei Taiwan 114 R O C Phone 02 87511560 KYOCERA MITA Corporation 2 28 1 chome Tamatsukuri Chuo ku Osaka 540 8585 Japan Phone 06 6764 3555 http www kyoceramita com mifa is a registered trademark of KYOCERA MITA CORPORATION Printed in Holland KYOCERA MITA AMERICA INC Headquarters 225 Sand Road Fairfield New Jersey 07004 0008 TEL 973 808 8444 FAX 973 882 6000 New York Branch 1410 Broadway 23rd floor New York NY 10018 TEL 917 286 5400 FAX 917 286 5402 Northeastern Re ion 225 Sand Road Fairfield New Jersey 07004 0008 TEL 973 808 8444 FAX 973 882 4401 Midwestern Region 201 Hansen Court Suite 119 Wood Dale Illinois 60191 TEL 630 238 9982 FAX 630 238 9487 KYOCERA MITA CANADA LTD 6120 Kestrel Road Mississauga Ontario L5T 1S8 Canada TEL 905 670 4425 FAX 905 670 8116 KYOCERA MITA MEXICO S A DE C V Av 16 de Septiembre 407 Col Santa In s 02130 Azcapotzalco M xico D F M xico TEL 55 5383 2741 FAX 55 5383 7804 Western Region 14101 Alton Parkway Irvine California 92618 7006 TEL 949 457 9000 FAX 949 457 9119 Southeastern Region 1500 Oakbrook
27. 24 2FM 4 Removing the fuser thermistor 1 Remove and split the fuser unit See page 1 5 19 2 Remove the heater lamp See page 1 5 22 3 Remove the heat roller See page 1 5 23 4 Remove one screw 5 Remove the fuser thermistor Fuser thermistor Figure 1 5 26 Removing the fuser thermistor 1 5 25 2FM 5 Removing the thermal cutout CAUTION Do not bend the terminals of the thermal cutout 1 Remove and split the fuser unit See page 1 5 19 2 Remove the heater lamp See page 1 5 22 3 Remove the heat roller See page 1 5 23 4 Remove the two screws 5 Remove the thermal cutout Screws Thermal cutout ZR d Figure 1 5 27 Removing the thermal cutout 1 5 26 2FM 6 Removing the press roller WARNING The press roller is extremely hot immediately after the printer was running Allow substantial period of time until it cools down 1 Remove and split the fuser unit See page 1 5 19 2 Remove the press roller from the fuser unit Press roller SS VON lt Q KQ Fuser unit Figure 1 5 28 Removing the press roller 1 5 27 2FM 1 5 10 Removing the laser scanner unit and the eraser lamp 1 Remove the right cover and left cover See page 1 5 4 2 Remove four connectors 3 Remove six screws and then remove the LSU Screws shield When refitting the LSU shield tighten a screw in order of 4 from 1 SS os Uy 3 ST
28. 7 2FM 1 3 2 Installing the expanding memory option The main board of the printer is equipped with one Socket for memory expansion Expansion memory is available in the form of DIMM Dual In line Memory Module CAUTION Take precautions that no foreign substances such as metal chips or liquid get inside the printer during the p Memory socket installation process Operation of the printer during the presence of a foreign substance may lead to fire or electric shock WARNING Turn the printer s power switch off Unplug the printer s power cable Procedure 1 Remove the one screw and then remove the memory cover 2 Open the clips on both ends of the DIMM socket 3 Insert the DIMM into the DIMM socket so that the notches on the DIMM align with the corresponding protrusions in the slot 4 Close the clips on the DIMM slot to secure the DIMM 2117777777 7777777777 2 7777777777 Memory cover Figure 1 3 14 Inserting the DIMM 1 3 8 1 3 3 Installing the memory card option The main board of the printer is equipped with one slot for memory card CAUTION Take precautions that no foreign substances such as metal chips or liquid get inside the printer during the installation process Operation of the printer during the presence of a foreign substance may lead to fire or electric shock WARNING Turn the printer s power switch off Unplug the printer s power cable and discon
29. 8 ER DL OL OL S kd 3 e62cWNac 31091d 2 et LL uu z g E aNoS E eer 0S0 L dM a due 191e9H Stet pseog uren a FL s 8 a 9 ov gt a ez SiL well GOA S Ted KH 90A EE Jesnj 9 ul Zo9ZNaZ D NO amp Pino NI zm N ki z lt lnlol lt nla A 0Sz 3 24 m 2olcio xo g eg i v SV ose N ne v 8 0S2 3 14 zzm YOUMS J9MO ONDARON SG LG dM Josues d o 9 9 m s e v Josueg g HS H I d sis ts Jeuo Care ZS O r ant yun aN d GEF S BI E Nud91d J UULIS SEI I Nadapa Jose Sei 2 D ba LEF Soa Lt D g pieoq Ajddns samog vLZcoac c wa CT sifsr low PEREAT RZ z z gilet YOS DA gRROXSmEmS De e ve 059 665502522566222 E t t ELJ EL mn amp D amp WE amp D ele ailes San AH OL OL J INO ele 6 6 ONE ale Josues UOIIMS LAve L uoge4siboH ayesseg anos anos ziaiv erareiv ji D I ASHONOS Lg elt tw yams Suus ele AS NS OL OLW OLg oLY MS root v v SsOuOZ z13Sd easy HOU e ur sn PERRET RES NLIX3 L13Sd pg i2 i NivaH i epoui d js ye d3ans 13SlAH 18v M S wanna 1 Lt HO NO Jewod AVZ NIV3H HQAHLH 9giov LO9ZN4Z WH3H L HGAH LL Sg sv Lt SE 0604 x b NV HQAHIA vary W 0A Q WNH3H L zzi j tAve eet AVC EAVO g ev HGAHL ae 0 eegene GN9Od AN9Od zaev INA ZAve eNve Lavi olor ZNVd ZNO goung 6 zaver 8 8 LSOL dM H3NOI pJeoq seig pyeoq aeon UD issu S NIMS S anod
30. 9 Green Off Lit NW Figure 1 4 1 Self diagnostic inidication 1 4 2 2FM Error indications Contents Main motor error Check procedures corrective measures START Remove and check harness 2DC2711 between engine board KP 1046 and main motor at pins 6 to 9 on both ends Connect circuit tester to pin 8 MOTORN of 24 V DC at YC04 on engine board pin 9 of CN1 on KP 1046 and ground main motor Connect oscilloscope to 1 pin 8 MOTORN and Turn printer power off pin 7 MRDYN of CN1 then on on main motor T Print status page Turn power switch off then on Y pin 8 MOTORN Print status page Replace harness 2DC2711 of YC04 on engine board between engine board KP KP 1046 goes high 1046 and main motor then low Does pin 7 MRDYN of CN1 on main motor goes high then low within 3 seconds from pin 8 MOTORN goes low Replace engine board KP 1046 See page 1 5 9 Replace main motor See page 1 5 15 If not solved check or replace drive unit See page 1 5 15 1 4 3 2FM Error indications Contents Laser scanner unit Polygon motor error Check procedures corrective measures 24 V DC at pin 5 of YCO6 on engine board KP 1046 Connect oscilloscope to pin 1 PLGCLK and pin Replace engine board KP 1046 See page 5 11 Replace engine b
31. D 2598 4Hz H IL o GND Figure 2 3 5 Polygon motor control circuit 2 3 5 2FM 2 3 3 Power supply board The power supply board provides the AC power input and DC power and outputs The high voltage bias generator circuit is mounted on a separate board A simplified schematic diagram is shown below AC input Thermal cutout 2 3 6 Power Current Switch fuse SW1 F1 Current fuse F2 Power supply unit D1 Switching Over current detection circuit LJ Exit EXITN sensor PC3 Transformer T1 24V1 24 VDE 24vDc SLEEP shutoff num circuit FAN Cooling fan 24V1 5 V 5 V DC rectifier smooth ing circuit i PGND SGND THERM Y Over voltage detection circuit exo Fuser thermistor Transistor ZCROSS E Q121 Zero cross signal detection circuit 24V2 HEATN Figure 2 3 6 Power supply board circuit block diagram 2 3 4 Bias board The bias board contains the developing bias output circuit registration sensor and the cassette switch liaison connection to the high voltage board power supply and the toner sensor Bias board 45V 2FM It also provides a Toner sensor TONER TONER R
32. DIER DP 8001 ete 008 7 d i 6088 ooz i i ceoo1 L i L OL S 0 2 4 1 10sues 1x3 NIX 10sues uoneasibeu 11S34 40 0WW uoBAjod NHGO ld dwe 185212 MdSv43 seiq Buidoje eg svig epoip ese Nad LNO uoinjo uoneasibeu Nassau 1010uu Daa eyosse9 NHGlNJd A poai 1 61eyo 1oJsue1 Aozgt HOAHLIH HGAH L ueB1euo uren HOAHIN 40 0W uen NHO LOMW 2FM T ing pa c uz a x wdd og o peeds Bunuugd o S WW 00 264 peeds Buipee ode Gi S ulUl 06 Z LL peeds wnq 3 i i i 1 i TD i A i Vi piouejos oequoims 7 i i i 448 198 edana j ij ij piouejos x oequoiMs a d 429 409 taana i i i 10sues 1x3 686 eseri eels C ce NLIX4 x osues uoneansiDeu l OLL6 tte Orel LISSY S 7 L ojowu uoBAjod ceo SIS 00L NYdD 1d i t i i l i duue 1ese13 lt Eist l MdsvH3a 5 seiq Buidojaneq E 6098F 1 GZ svia ES l epoip 1ese1 Ben 0086 ver 0051 N3dlnO m uoinjo uoneuisibeu goe met 066 NHQS3H i 1010uJ pee enesseo PA oor oe NHGWAd i i i 2 Jm SCH 1eB1euo 1ejsueJ o rios sooz Voie HQAHIH HQAHLL a 008 De 261eu9 uen 60961 002 HGOAHIN N Li i Jojou uen o l SS NHOLON z oz DI 0L S 0 Ld Ben oO Ka iming c 2 4 2 2FM iagram d iring Ww Um pee NHaaad eAvet
33. GND Pi 1 P50 A8 HEAT ER TT GND GND POO INTPO 43 ZCROSS Power supply unit Free REY Bias board gt AC input Ju gt High voltage Zero board Thermal cutout cross Heat roller detection 424 V circuit Heater lamp e ccm av Y PC2 Photo triac HEATN Fuser thermistor Figure 2 3 4 Heater lamp control circuit 2 3 4 2FM 3 Polygon motor control circuit The main board supplies the 2598 4 Hz clock pulse PLGCLK via the engine board to the PLL control IC IC1 for the polygon motor To begin printing the engine CPU U1 turns PLGDR to H level the PLL control IC IC1 starts to revolve the polygon motor so that the revolution is 25 984 rpm which depends on the PLGCLK clock pulse When PLL control IC IC1 finds that the polygon motor is revolving at the rated speed turns PLGDRN to L level to acknowledge the engine CPU that the rated speed has been achieved On the contrary if PLGRDYN does not turn to L level within 8 seconds since PLGDRN has been L level Engine board Pol circui Laser scanner unit olygon motor control circuit EE EE A i b 3 i i GE Polygon motor PLGDR 2 he 5V gr 1 7 TT PGND i 25 984 rpm GND i PLGRDYN d PLGMRDY Le 3 SES QA7 MRDYN 4 PGND 3 PLGDRN if gt control IC i Main motor 2 PLGRDYN d PLGCLK n d ageet YC6 Main board R SC PGN
34. LSU Waste E toner raser sensor amp LED indicators Key switches DL1 DL2 DL3 DL4 SW1 SW2 Reset IC Y U5 MP feed U1 Ze Temperature thermistor TH1 EEPROM U2 Y Registration Paper clutch sensor Bias board MP paper sensor Figure 2 3 2 Engine board circuit block diagram 2 3 2 Switchback solenoid Main board 2FM 1 Eraser lamp control circuit The CPU U1 turns pin 23 ERASER of U1 to H level transistors Q14 turns on consequently and the 24 V DC given at pin 1 of connector YC5 applies to the eraser lamps The eraser lamps thus illuminate as the current flows through the resistors R109 R110 and R111 eraser lamp the pin Z2 of connector YC5 transistor Q14 and the ground Engine board Eraser lamp cotrol circuit 24V3 A Eraser lamp YC14 ERASPW ERASER 23 ERASER P25 ASCKO Figure 2 3 3 Eraser lamp control circuit 2 3 3 2FM 2 Heater lamp control circuit Activation of the heater lamp is dominated by the HEAT signal which is derived by the engine CPU U1 at its pin 1 When its level is high transistor Q10 turns on photo triac PC2 and triac TRA1 turn on simultaneously and the heater lamp is applied with the primary AC voltage in turn Switching of triac TRA1
35. Replace the process unit 14 Fixing is poor Causes 1 Wrong paper 2 Flawed press roller Causes Check procedures corrective measures 1 Wrong paper Check if the paper meets specifications 2 Flawed press roller Replace the press roller see page 1 6 26 1 4 17 2FM 1 4 4 Electrical problems Problem Causes Check procedures corrective measures 1 The machine does not operate when the power switch is turned on No electricity at the power outlet Measure the input voltage The power cord is not plugged in properly Check the contact between the power plug and the outlet The front cover is not closed completely Check the front cover Broken power cord Check for continuity If none replace the cord Defective power switch Check for continuity across the contacts If none replace the power switch Blown fuse in the power supply board Check for continuity If none remove the cause of blowing and replace the fuse Defective interlock switch Check for continuity across the contacts of switch If none re place the switch Defective power supply board With AC present check for 24 V DC at CN2 12 2 13 and 5 V DC at CN2 1 2 2 on the power supply board If none replace the power supply board 2 The main motor does not operate Poor contact in the main motor connector terminals Reinsert the connec
36. X KYOCERA FS 1020D SERVICE MANUAL Published in Oct 03 t KSOCERd Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers their machines as well as themselves during maintenance activities Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property These symbols are described below DANGER High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol WARNING Serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol CAUTION Bodily injury or damage to property may result from insufficient attention to or incorrect compliance with warning messages using this symbol Symbols The triangle ZA symbol indicates a warning including danger and caution The specific point of attention is shown inside the symbol A General warning AN Warning of risk of electric shock LAN waring of high temperature Q indicates a prohibited action The specific prohibition is shown inside the symbol
37. ar Z18 Z36 Free gear Z40 9 Gear Z18 Z35H MAG gear Z24H 4 Mixer gear Z20 B Mixer gear Z20 A 43 DLP screw B DLP screw A 3 Drum Drum gear Z35H 4D Drum shaft Drum gear Z36 Sweep gear Z13 9 Idle gear 18H Cleaning blade 2 Sweep roller 3 Waste toner reservoir 2 1 5 2FM 2 Main charging 2 1 Photo conductive drum The durable layer of organic photoconductor OPC is coated over the aluminum cylinder base The OPC tend to reduce its own electrical conductance when exposed to light After a cyclic process of charging exposure and development the electrostatic image is constituted over the OPC layer Since the OPC is materialized by resin it is susceptible to damage caused by sharp edges such as a screwdriver etc resulting in a print quality problem Also finger prints can cause deterioration of the OPC layer therefore the drum in the process unit must be handled with care Substances like water alcohol organic solvent etc should be strictly avoided As with all other OPC drums the exposure to a strong light source for a prolonged period can cause a print quality problem The limit is approximately 500 lux for less than five minutes If the drum process unit remains removed form the copier it should be stored in a cool dark place Photo conductive layer z Aluminum base cylinder Figure 2 1 6 Photo conductive drum 2 1 6 2FM 2 2 Charging the drum The following shows a simplifie
38. ay 9 MP tray Figure 1 1 1 Extension tray Power switch Memory cover Rear cover Optional interface slot Parallel interface connector USB interface connector Operator panel AC inlet 2FM 2 Operator panel 1 1 4 Figure 1 1 2 D Ready indicator Green 2 Data indicator Green 3 Attention indicator Red 4 Toner indicator Red 5 CANCEL key 6 GO key 2 Cross section view Cassette MP tray Paper path Optional paper feeder Switch back and refeed duplex printing Figure 1 1 2 Cassette Transfer section Paper feed unit Fuser unit MP tray Face down output tray MP tray paper feed unit Process unit Toner container Switch back conveying section Refeed unit 2FM 2FM 1 2 1 Process unit drum Note the following when handling or storing the drum When removing the process unit never expose the drum surface to strong direct light Keep the drum at an ambient temperature between 10 C 50 F and 32 5 C 90 5 F and at a relative humidity not higher than 80 RH Avoid abrupt changes in temperature and humidity Avoid exposure to any substance which is harmful to or may affect the quality of the drum Do not touch the drum surface with any object Should it be touched by hands or stained with oil clean it 1 2 2 Installation environment 1 Temperature
39. cable Defective engine board KP 1046 Replace the engine board KP 1046 Problem Causes 2FM Check procedures corrective measures 6 The registration clutch does not op erate Broken registration clutch coil Check for continuity across the coil If none replace the registra tion clutch Poor contact in the regis tration clutch connector terminals Reinsert the connector Also check for continuity within the con nector cable If none remedy or replace the cable Defective engine board KP 1046 Replace the engine board KP 1046 7 The eraser lamp does not turn on Poor contact in the eraser lamp connector terminals Reinsert the connector Also check for continuity within the con nector cable If none remedy or replace the cable Defective eraser lamp Check for continuity If none replace the eraser lamp Defective engine board KP 1046 If the eraser lamp turns on when YC14 2 on the engine board KP 1046 is held low replace the engine board KP 1046 8 The heater lamp does not turn on Broken wire in heater lamp Check for continuity across heater lamp If none replace the heater lamp Thermal cutout triggered Check for continuity across thermal cutout If none remove the cause and replace the thermal cutout 9 The heater lamp does not turn off Broken heater lamp wire Measure the resistance If it is
40. caton error Turn power switch off then on If not solved replace engine board See page 1 5 9 or main board See page 1 5 10 Engine ROM checksum error Turn power switch off then on If not solved replace engine board See page 5 12 1 4 11 2FM 1 4 3 Image formation problems 1 No image appears 2 No image appears entirely white entirely black See page 1 4 13 See page 1 4 13 5 A white line appears 6 A black line appears longitudinally longitudinally See page 1 4 14 See page 1 4 15 9 Black dots appear on 10 Image is blurred the image See page 1 4 16 See page 1 4 16 13 Image is partly missing 14 Fixing is poor See page 1 4 17 See page 1 4 17 1 4 12 3 Image is too light See page 1 4 13 7 A black line appears laterally See page 1 4 15 11 Paper creases See page 1 4 16 4 Background is visible See page 1 4 14 8 One side of the copy image is darker than the other See page 1 4 15 12 Offset occurs See page 1 4 17 1 No image appears Causes entirely white Causes 2FM 1 Defective process unit installation 2 No transfer charging 3 Defective laser scanner unit Check procedures corrective measures 1 Defective process
41. cause heat buildup and poor copying performance Always handle the machine by the correct locations when moving it eeseseeeeeese Q Always use anti toppling and locking devices on copiers so equipped Failure to do this may cause the copier to move unexpectedly or topple leading to injury eee eeeeeteeeeeeenteeeeeeenaees Avoid inhaling toner or developer excessively Protect the eyes If toner or developer is accidentally ingested drink a lot of water to dilute it in the stomach and obtain medical attention immediately If it gets into the eyes rinse immediately with copious amounts of water and obtain Q MEGICAl ATS de ET Advice customers that they must always follow the safety warnings and precautions in the copier s Q IMSTMUCTION MAMGDOOK EE 2 Precautions for Maintenance WARNING Always remove the power plug from the wall outlet before starting machine disassembly Always follow the procedures for maintenance described in the service manual and other related ejje ERE TTL LL I m EE Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits iii Always use parts having the correct specifications ssseeeeenn ee Always use the thermostat or thermal fuse specified in the service manual or other related Q brochure when replacing them Using a piece of wire for example could lead t
42. cord or connector wires on high voltage components when removing S them always hold the plug Itself tenir ia S E Do not route the power cable where it may be stood on or trapped If necessary protect it with a S cable cover or other appropriate item issue Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks Q Remove toner completely from electronic components sssee emn A e Run wire harnesses carefully so that wires will not be trapped or damaged Q After maintenance always check that all the parts screws connectors and wires that were removed have been refitted correctly Special attention should be paid to any forgotten connector trapped wire and missing screws sssssseeee enne nnnm nnns Check that all the caution labels that should be present on the machine according to the Q instruction handbook are clean and not peeling Replace with new ones if necessary e Handle greases and solvents with care by following the instructions below Use only a small amount of solvent at a time being careful not to spill Wipe spills off completely Ventilate the room well while using grease or solvents Allow applied solvents to evaporate completely before refitting the covers or turning the main Switch on Always wash hands afterwards Never dispose of toner or toner bottles in
43. d diagram of the electrophotographic components in relation to the engine system Charging the drum is done by the main charger unit A High voltage board Bias ere board Engine board YC M CN2 A4 ER PSEL2 MHVDR2 CN2 A9 YC12 9 Main charging output Zener board KP 5159 i Figure 2 1 7 Charging the drum As the drum rotates in a clean neutral state its photoconductive layer is given a uniform positive corona charge dispersed by the main charger wire B Due to high voltage scorotron charging the charging wire can get contaminated by oxidization after a long run Therefore it must be cleaned periodically from time to time Cleaning the charging wire prevents print quality problems Such as black streaks 2FM 3 Exposure The charged surface of the drum is then scanned by the laser beam from the laser scanner unit B Laser beam LSU Figure 2 1 8 Exposure The laser beam 780 nm wavelength beam is dispersed as the polygon motor polygon mirrors revolves to reflect the laser beam over the drum Various lenses and mirror are housed in the scanner unit adjust the diameter of the laser beam and focalize it at the drum surface 2FM 3 1 Laser scanner unit Diversion mirror Figure 2 1 9 Laser scanner unit CD Laser diode ssssssssseeeene
44. e same page Within 10 s A4 Letter depends on input data Within 15 s room temperature 23 C 73 4 F humidity 50 RH One universal cassette and one MP tray Cassette 250 sheets 80 g m2 0 11 um MP tray 50 sheets 80 g m 0 11 um Face down 250 sheets 80 g m 0 11 um 16 MB expandable up to 272 MB 1 slot 16 32 64 128 MB DIMM Fast 1200 mode 600 x 600 dpi with KIR Kyocera Image Refinement 300 x 300 dpi with KIR Kyocera Image Refinement OPC drum diameter 30 mm Single positive corona charging Single element reversing process Transfer roller Heat roller Heat source halogen heaters 750 W Control temperature 180 C 356 F at normal ambient temperature Abnormally high temperature protection device thermal cutout Exposure by eraser lamp LED array Cleaning blade CPU Power PC405 266 MHz System ROM 4 MB Font ROM 2 MB 16 Mbit x 1 Main RAM 16 MB standard on board expanding up to 272 MB standard 16 MB 256 MB at the maximum by adding optional expansion memory Optional expansion RAM DIMM 1 slot 1 1 1 2FM Controller software a Emulation PCL6 PCL5e PCLXL KPDL3 PostScript 3 compatible b Fonts Bitmap font 1 Line Printer bitmap font Outline fonts 35 PCL6 PCL5e PCL XL fonts 45 KPDL2 fonts c Graphic 1 Raster graphic 75 100 150 200 300 600 dpi 200 dpi is supported when the resolution is 600 dpi 2 Vector graphic Line Box Circ
45. er unit Pin photo diode error 5 V DC at pin 6 of YCO7 on main board KP 1050 Connect oscilloscope to pin 4 OUTPEN of YCO7 on main board KP 1050 Turn power switch off YCO06 on main board KP 1050 goes high then low before 4200 error then on Replace main board KP 1050 See page 1 5 10 Replace main board KP 1050 See page 1 5 10 ij Turn power switch on Connect oscilloscope to pin 4 OUTPEN and pin 8 PDN of YCO7 on main board KP 1050 Turn power switch off 1 4 6 Does pin 8 PDN of YCO6 on main board KP 1050 output pulse signal within 0 1 second after pin 4 OUTPEN goes high then 2 Pin photo diode OW detect horizontal synchronization signal Frequency 1417 Hz Low level width 10 us Continued to next page 0 d Replace engine board KP 1051 See page 1 5 9 Y Turn power switch on Replace harness 2FM2602 between main board and engine board Y Continued to next page 2FM Check procedures corrective measures Continued from previous page Continued from previous page Replace main board KP 1050 See page 1 5 10 Replace main board i KP 1050 See page 1 Turn power switch on 5 10 Y Turn power switch on Replace harness No 2DC2714 between engine board and laser scanner unit Yes
46. ers the printed page to either the face down or face up tray as manipulated by the user The figure below shows the components in the paper feeding system and the paths through which the paper travels The sensors clutches etc are described in the following pages Figure 2 1 1 Paper feeding path Cassette 2 MP tray 3 Face down output tray 4 Process unit 5 Fuser unit 6 Feed roller Feed pulley MP feed roller 9 Lower registration roller Upper registration roller Transfer roller Drum 3 Heat roller Press roller 9 Lower exit roller Exit pulley Upper exit roller Exit pulley 2FM 1 Paper feed control The following diagram shows interconnectivity of the feeding system components including the sensors and rollers The engine board provides the signals in conjunction with the electrophotography process that is driven by the main board Power supply board Exit sensor Engine board Bias board Registration sensor bd YC303 6 CN302 7 EXITN YC03 2 RESIT I Yc11 8 YCO09 2 YC12 10 CN2 10 2 1 2 YCo7 2 YC04 8 YC04 9 YC04 1 Figure 2 1 2 Paper feed control Switchback solenoid Registration clutch MP feed clutch K MP paper sensor Main motor CN1 8 CN1 9 C CN1 1 CN2 2 FEDDRN Feed i clutch Paper Sensor RESDRN
47. g the transfer roller CAUTION Do not touch the transfer roller sponge surface Oil and dust particles of paper etc on the transfer roller can significantly deteriorate the print quality white spots etc When refitting the bushes and springs make sure to refit the black colored bush and spring on the left side Also observe the correct direction to which the bush is fit in reference to the paper passing direction 1 Remove the process unit See page 1 5 2 2 Remove the transfer roller from the both bushes Paper passing direction Long Short gee Transfer roller Bush Si Bush Black colored LT Spring Black colored Transfer roller a Bush QC Figure 1 5 9 Removing the transfer roller 1 5 8 2FM 1 5 7 Removing the principal circuit boards 1 Removing the engine board 1 Remove the right cover See page 1 5 4 2 Remove all twelve connectors from the engine board 3 Remove three screws 4 Remove the engine board When replacing the board with a new board remove the EEPROM U2 from the old board and mount it to the new board Screws Figure 1 5 10 Removing the engine board 2FM 2 Removing the main board 1 Remove the process unit See page 1 5 2 2 Remove the top face down output tray and right cover See pages 1 5 2 and 1 5 3 3 Remove two connectors from main board 4 Remove six screws
48. g types of data for updating firmware of the different purposes System firmware The data to be downloaded are supplied in the following format System firmware file name example B11K8000 bcmp L compression Boot program is included L Version code Version 80 00 ID code for Kyocera mita Machine code FS 1020D B11 Figure 1 6 1 Firmware program data format 1 6 1 2FM 2 Downloading the firmware from the parallel interface This section explains how to download firmware data from the parallel interface The printer system can automatically recognize whether the data to be overwritten is for controller firmware CAUTION Downloading the firmware takes several minutes Do not turn power off during downloading NOTE MS DOS is required for a downloading from the parallel interface The computer must be connected to the printer with a parallel cable Procedure 1 Turn printer power on Make sure the printer is ready 2 At the DOS prompt send the following command to the printer echo R UPGR SYS EXIT gt prn 3 Confirm that downloading was finished normally by the LED indicator See page 1 6 4 4 Turn power off 5 Turn power on again Check the printer gets ready Confirm the status page shows the new firmware version See service information on the status page If downloading fails the printer indicates an error display using the LED indicator
49. hen must be cleaned to the electrically neutral state This is necessary to erase any residual positive charge ready to accept the uniform charge for the next print process The residual charge is canceled by exposing the drum B to the light emitted from the eraser lamp EI This lowers the electrical conductivity of the drum surface making the residual charge on the drum surface escape to the ground 2 1 15 2 2 1 Electrical parts layout 1 Electrical parts layout 2FM Figure 2 2 1 Electrical parts layout D Main board KP 1050 2 Engine board KP 1046 3 Power supply board High voltage board Bias board KP 1051 6 Toner sensor PWB KP 5055 Waste toner sensor PWB KP 5155 Eraser lamp PWB KP 5157 9 Registration sensor Paper sensor 4 MP paper sensor 23 Exit sensor 43 Interlock switch Cassette switch 5 Power switch Temperature thermistor 2 Fuser thermistor Thermal cutout Main motor 9 Cooling fan Registration clutch 2 Feed clutch 3 MP feed clutch Switchback solenoid 5 Laser scanner unit 6 Heater lamp Paper feeder interface connector AC Inlet 2 3 1 Main board Xtal System CXIN 33 333 MHz X1 CXOUT Xtal video VXIN 37 6687MHz X2 VXOUT 2FM OSC USB 48 000MHz SAIN YC3 USB a USBDP VF USBDN P1284DIR La NAUTOFD NINIT NSELIN NSTROBE NACK PERROR SELECT FAULT BUSY
50. interlock switch Check for continuity across switch If there is no continuity when the switch is on replace it 14 Others 1 4 20 Wiring is broken shorted or makes poor contact Check for continuity If none repair Noise Locate the source of noise and remove 1 4 5 Mechanical problems Problem Causes check procedures 2FM Corrective measures 1 No primary paper feed Check if the surfaces of the feed roller and MP feed roller are dirty with paper powder Clean with isopropyl alcohol Check if the feed roller and MP feed roller are deformed Check visually and replace any deformed rollers see page 1 5 5 1 5 6 Electrical problem with the feed clutch and MP feed clutch See pages 1 4 18 2 No secondary paper feed Check if the surfaces of the upper and lower registration rollers are dirty with paper pow der Clean with isopropyl alcohol Electrical problem with the registration clutch See page 1 4 19 3 Skewed paper feed Deformed feed roller or MP feed roller Repair or replace if necessary 4 Multiple sheets of paper are fed at one time Defective feed roller MP feed roller or fric tion plate Check the drawer claw visually and correct or replace if necessary 5 Paper jams Check if the paper is curled Change the paper Deformed guides along the paper conveying path Check visually a
51. iorated developer Replace the process unit 3 Dirty or deteriorated drum Replace the process unit 1 4 13 2FM 4 Background is visible Causes 1 Dicective print density setting 2 Dicective surface potential of the drum 3 Defective developing roller Causes Check procedures corrective measures 1 Dicective print density setting Open the printer top cover and check that the process unit is correctly seated Poor contact main charger terminal between the process unit and the printer main unit 2 Dicective surface potential of the drum The drum potential should be approximately 400 V This may vary depending on production lots Measurement is possible only by using the jig and tool specifically designed for this purpose The drum unit will have to be replaced if it bears values far out of the allowable range 3 Defective developing roller If a process unit which is known to work normally is available for check replace the current process unit in the printer with the normal one If the symptom disappears replace the process unit with a new one b A white line appears Causes longitudinally 1 Dirty or flawed main charger wire 2 Foreign matter in the developing section 3 Flawed drum Causes Check procedures corrective measures 1 Dirty or flawed main charger wire Replace the process unit 2 Foreign matter in the developing section Replace the process
52. le Arc Fill pattern etc 3 Bar code One dimensional bar code 45 types Two dimensional bar code 1 type PDF 417 d Connectivity Plug amp play Windows 95 98 Me NT4 0 2000 XP Je Parallel High speed bi directional IEEE 1284 Nibble ECP mode USB Full Speed USB2 0 Optional interface KUIO LV x 1 Network interface card IB 20 10 Base TX 100 Base TX 10 Base 2 IB 21E 10 Base TX 100 Base TX wireless LAN card IB 22 must be installed Optional serial interface RS 232C Max 115 2 Kbps Serial interface board IB 11 must be installed Dimensions 378 W x 235 D x 375 H mm 147 8 W x 91 4 D x 143 4 H Weight Approx 10 5 kg 231 s Ibs Floor requirements 496 W x 740 D mm 199 16 W x 293 16 D Power source 120 V AC 60 Hz 7 1 A 220 240 V AC 50 60 Hz 3 8A Power consumption Max 819 W During sleep mode 4 5 W 120 V AC 4 2 W 220 240 V AC NOISQ iier rtu e ER Printing 55 dB A Ready 32 dB A OPTIONS ie pee eee tts Paper feeder Additional memory DIMM Memory card Network interface card IB20 IB21E IB 22 Serial interface board IB 11 1 1 2 Name of parts 1 Overall Front top cover 2 Front cover 3 Process unit Toner container 5 Main charger cleaner 6 Cassette Paper stopper Face down output tr
53. nd replace any deformed guides Check if the contact between the upper and lower registration rollers is correct Check visually and remedy if necessary Check if the press roller is extremely dirty or deformed Clean or replace the press roller Check if the contact between the heat roller and its separation claws is correct Repair if any springs are off the separation claws 6 Abnormal noise is heard Check if the rollers and gears operate smoothly Grease the bearings and gears Check if the following electromagnetic clutches are installed correctly feed clutch MP feed clutch and registration clutch Correct 1 4 21 2FM 1 5 1 Precautions for assembly and disassembly 1 Precautions e Be sure to turn the power switch off and disconnect the power plug before starting disassembly When handling PWBs printed wiring boards do not touch parts with bare hands The PWBs are susceptible to static charge Do not touch any PWB containing ICs with bare hands or any object prone to static charge Use only the specified parts to replace the fixing unit thermal cutout Never substitute electric wires as the printer may be seriously damaged Use the following circuit testers when measuring voltages Hioki 3200 Sanwa MD 180C Sanwa YX 360TR Beckman TECH300 Beckman DM45 Beckman 330 Beckman 3030 Beckman DM850 Fluke 8060A Arlec DMM1050 Arlec YF1030C Capable of measuring RMS
54. nect the printer from the computer or the network Never insert or remove a memory card while the printer power is ON Failure to turn the power switch OFF will immediately halt the printer with a Memory card err20 message this message may not always appear It also could result in any damage to the printer s electronic parts or the memory card Turn the power Switch ON again to restart the printer Procedure 1 Remove the two screws and then remove the option interface slot cover or network interface card serial interface board 2 Insert the memory card in the slot Push it in all the way 3 Secure the option interface slot cover or network interface card serial interface board by using two Screws 2FM Memory card Option interface EN Slot cover Screws 7717777777 7777777777 Figure 1 3 15 Inserting the memory card 1 3 9 2FM 1 3 4 Installing the network interface card option If the serial interface board kit is installed remove it to use the network interface card CAUTION Take precautions that no foreign substances such as metal chips or liquid get inside the printer during the installation process Operation of the printer during the presence of a foreign substance may lead to fire or electric shock WARNING Turn the printer s power switch off Unplug the printer s power cable Procedure 1 Remove the two screws and then remove the option interface slot cove
55. ns and then remove the conveying guide f Roller guide Stop ring x Conveying guide Figure 1 5 14 Removing the conveying guide 1 5 13 2FM 7 Remove five screws 8 Remove the bottom cover 9 Remove the three connectors from the bias board 10 Remove the bias board Bottom cover Screws Screws Connector Figure 1 5 15 Removing the bias board 1 5 14 2FM 1 5 8 Removing the main motor and drive unit 1 Remove the cassette and process unit See page 1 5 2 2 Remove the right cover See page 1 5 4 3 Remove three connectors from the main motor 4 Remove four screws 5 Remove main motor Figure 1 5 16 Removing the main motor 1 5 15 2FM 6 Remove the engine board See page 1 5 9 7 Remove wires from wire saddles on the cord cover 8 Remove one screw 9 Remove the cord cover Figure 1 5 17 Removing the cord cover 1 5 16 10 Remove the main board See page 1 5 10 11 Remove one screw and then remove the grounding plate 12 Remove one screw and then remove the feed clutch 13 Remove three stop rings 14 Remove MP feed clutch gear feed clutch gear and registration clutch gear MP feed clutch gear Grounding Stop rin Za pr plate we Ke Ba dd Feed clutch gear hs X SD S GS Em xl Stop ring lt Xi 5 P4 Screw S Feed clutch Figure 1 5 18 Removing the clutches 2FM 1 5 17 Figure 1 5 17 Rem
56. o fire or other le ee EE When the service manual or other serious brochure specifies a distance or gap for installation of a Q part always use the correct scale and measure carefully ssssssssseeeeenee Always check that the copier is correctly connected to an outlet with a ground connection Check that the power cable covering is free of damage Check that the power plug is dust free If it is dirty clean it to remove the risk of fire or electric Shock esseeeeeeeeeees Never attempt to disassemble the optical unit in machines using lasers Leaking laser light may damag e ET e Handle the charger sections with care They are charged to high potentials and may cause electric shock if handled improperly sisi EK ACAUTION Wear safe clothing If wearing loose clothing or accessories such as ties make sure they are A safely secured so they will not be caught in rotating sections Use utmost caution when working on a powered machine Keep away from chains and belts A Handle the fixing section with care to avoid burns as it can be extremely hot ssss A e Check that the fixing unit thermistor heat and press rollers are clean Dirt on them can cause Q abnormally high temperatures esserti NAERAN ee Do not remove the ozone filter if any from the copier except for routine replacement S Do not pull on the AC power
57. oard KP 1046 See page 1 5 9 Replace laser scanner unit See page 1 5 28 3 PLGDRN of YCO6 on engine board KP 1046 H Turn power switch on Turn power switch off then on pin 3 PLGDRN of YCO6 on engine board KP 1046 goes high then low pin 1 PLGCLK of YCO6 on engine board KP 1046 output square wave signal Connect oscilloscope to pin 2 PLGRDYN and pin 3 PLGDRN of YCO6 on engine board KP 1046 X Turn power switch off then on Continued to next page Turn power switch on 1 4 4 Replace harness 2DC2714 between engine board and Does pin 2 laser scanner unit PLGRDYN of YC6 on engine board KP 1046 goes high then low within 8 seconds after pin 3 PLGDRN goes high then No Replace engine board t KP 1046 See page 1 Replace laser scanner 5 9 unit See page 5 29 Y Turn power switch on Replace harness 2DC2714 between engine bard and laser scanner unit 2FM Check procedures corrective measures Continued from previous page Replace engine board KP 1046 See page 1 5 9 Y Turn power switch on Replace main board KP 1050 See page 1 5 10 Turn power switch on Replace harness 2FM2602 between engine board and main board 1 4 5 2FM Error indications Contents Laser scann
58. on Lock lever 8 Close the front top cover T Front top cover t LJ T T Z Tu d pe Geschl Tk Figure 1 3 9 1 3 5 2FM Connect the printer cable and power cord 1 Connect the printer cable parallel or USB 2 Connect the power cord 1 3 6 Parallel interface uem connector Parallel printer cable USB interface connector ce USB cable Figure 1 3 10 l Power cord AC inlet Figure 1 3 11 2FM Load paper 1 Pull the cassette out of the copier 2 Set the paper in the cassette Cassette Figure 1 3 12 Initializing the printer and make test print 1 Turn on the printer s power switch Upon turning on the power the printer s 4 indicators flash in sequence until printer initialization is complete then the indicator on line lights steadily 2 The printer can print two different types of status page standard and service purpose A service purpose status page contains more detailed information about printer settings than a standard status page To print a standard status page press the GO key for at least 3 seconds and the indicators light in sequence from top to bottom To print a service purpose status page press the GO key for more than 10 seconds and the indicators light in sequence twice from top to bottom Figure 1 3 13 Completion of machine installation 1 3
59. oving the drive unit 1 5 18 2FM 1 5 9 Removing and splitting the fuser unit WARNING The fuser unit is hot after the printer was running Wait until it cools down CAUTION When refitting the fuser unit make sure the fuser unit gear and the copier s drive gear are properly meshed with each other For this rotate the main motor several turns before fixing screws 1 Remove the rear side cover 2 Remove the right and left cover See page 1 5 4 3 Remove the two connectors 4 Remove two screws 5 Remove the fuser unit Pad Rear side cover Connectors Fuser unit Figure 1 5 19 Removing the fuser unit 1 5 19 2FM 6 Remove two screws 7 Open and split the fuser unit Screw v Fuser unit Figure 1 5 20 Splitting the fuser unit 1 5 20 2FM 1 Removing the separation claws WARNING The separation claws are extremely hot immediately after the printer was running Allow substantial period of time until it cools down 1 Remove and split the fuser unit See page 1 5 19 2 Loosen the stopper screws 3 Hold the separation claw upright and remove the separation claw and separation claw springs Separation claw spring Figure 1 5 21 Removing the separation claws 1 5 21 2FM 2 Removing the heater lamp WARNING The heater lamp is extremely hot immediately after the printer was running Allow substantial period of time until it cools down Also the heater lamp is
60. r or the serial interface board 2 Insert the network interface card in the slot Push it in all the way 3 Secure the network interface card by using two Screws 1 3 10 Network interface card Screws ZHILIIIHHI 7717777777 7n 1 gg Option interface slot cover ND Screws Figure 1 3 16 Inserting the network interface card 2FM 1 4 1 Paper misfeed detection 1 Paper misfeed indication If a paper jam occurs while printing the printer notifies it by the following combination of the four indicators Remove the jammed paper as described below After removal open and close the top cover once to initialize the jam sensing O e of oh Lit Fast flashing S d Figure 1 4 1 Paper misfeed indication O0 of 2 Paper misfeed detection V MP paper sensor Le Cassette MP tray i lt Optional paper feeder Switch back and refeed duplex printing Figure 1 4 2 1 4 1 2FM 1 4 2 Self diagnosis 1 Self diagnostic function Service errors are represented by the alternating flashing of the indicators LEDs Each error is represented by the notation of four digits code and can be monitored on the Remote Operation Panel utility e g Call service 2000 is for the main motor error 2 Self diagnostic inidication Call service 2000 E 8 pC M O Lit Off On on C Red Li 0
61. s To identify error refer to the table on page 1 6 4 1 6 2 2FM 3 Downloading the firmware from the memory card To download data written in a memory card CompactFlash to the printer proceed as explained in this section CAUTION Downloading firmware takes several minutes Do not turn power off during downloading If downloading is interrupted by an accidental power failure etc the system DIMM may have to be replaced Bc M bes wee NOTE i The firmware program data must be stored to SSS o Memory card the root directory of the memory card SSS PA SEE IN t SES M N ec Procedure AN 1 Turn power switch off EN NS tae Screws 2 Remove the two screws and then remove the L slot cover Insert the memory card in the 2 printer s memory card slot 3 Turn power switch on 4 The printers starts and finishes downloading P automatically 5 Confirm that downloading was finished normally by the LED indicator See page 1 6 Slot cover 4 6 Turn power off 7 Remove the memory card and then secure the slot cover by using two screws 8 Turn power on again Check the printer gets ready 9 Turn power on again Check the printer gets ready Confirm the status page shows the new firmware version See service information on the statuspage If downloading fails the printer indicates an error display using the LED indicators To identify error refer to the table on page 1 6 4 Figure 1 6 1
62. s Emits diffused visible laser Cylindrical lens see Compensates the vertical angle at which the laser beam hits a polygon mirror segment 3 Polygon mirror motor sessss Has six mirror segments around its hexagonal circumference each mirror corresponding to one scanned line width on the drum when laser beam scans on it ay EH The f theta lens equalizes focusing distortion on the far ends of the drum 5 Sensor MiO enu us GU Rr Bends the very first shot of a laser scan towards the beam detection sensor 6 Pin photo sensor ssssseene When shone by the sensor mirror above this photo sensor generates a trigger signal for the engine controller to start activating the paper feeding system 2FM 3 2 Drum surface potential The laser beam is continually switched on and off depending on the print data It is on for a black exposed dot and off for a white blank dot Since the drum surface is evenly charged whenever it is illuminated by the laser beam the electrical resistance of the photoconductor is reduced and the potential on the photoconductor is also lowered Resulted on the drum surface is an electrostatic image which represents the data to print Note that the area to be printed black has the low potential constituting a positively exposed image Laser beam Exposed surface potential approximately 60 to 80 V Charged surface potential 400 15 V i Drum
63. tents Waste toner full Total page count less than 100 000 pages of printing Check procedures corrective measures START Y Shake the process unit horizontally Y Turn power switch off then on 7980 error shown Replace the process unit Y Turn power switch off then on 7980 error shown Replace the waste toner sensor or engine board 1 4 9 2FM Error indications Contents Waste toner full Total page count more than 100 000 pages of printing Check procedures corrective measures Shake the process unit horizontally Turn power switch off then on 7990 error shown Y Replace the process unit Turn power switch off then on 7990 error shown Replace the waste toner sensor or engine board KP 1046 See page 1 5 9 1 4 10 Error indications Contents 2FM Check procedures corrective measures Controller checksum error Turn power switch off then on If not solved replace main board See page 1 5 10 Controller RAM read write error Remove the expansion memory DIMM Turn power switch off then on If not solved replace main board If solved replace the expanding memory See pages 1 5 10 and 1 3 8 Controller system er ror Turn power switch off then on If not solved replace main board See page 1 5 10 Communi
64. tor Also check for continuity within the con nector cable If none remedy or replace the cable Broken main motor gear Check visually and replace the main motor if necessary Defective main motor Run maintenance item U030 and check if the main motor oper ates and replace the main motor if necessary Defective engine board KP 1046 Replace the engine board KP 1046 3 Cooling fan does not operate Broken Cooling fan coil Check for continuity across the coil If none replace Cooling fan Poor contact in the Cool ing fan connector termi nals Reinsert the connector Also check for continuity within the con nector cable If none remedy or replace the cable 4 The feed clutch does not operate Broken feed clutch coil Check for continuity across the coil If none replace the feed clutch Poor contact in the feed clutch connector terminals Reinsert the connector Also check for continuity within the con nector cable If none remedy or replace the cable Defective engine board KP 1046 Replace the engine board KP 1046 5 The MP feed clutch does not operate 1 4 18 Broken MP feed clutch coil Check for continuity across the coil If none replace the MP feed clutch Poor contact in the MP feed clutch connector ter minals Reinsert the connector Also check for continuity within the con nector cable If none remedy or replace the
65. values 1 5 1 2FM 1 5 2 Removing the process unit 1 Open the front top cover 2 Open the front cover 3 Lift the process unit together with the toner container out of the printer Front top cover Front cover ndi Process unit Figure 1 5 1 Removing the process unit CAUTIONS After removing the process unit seal it in the protective bag and place it on flat surface Do not place the process unit in a dusty area Do not give impact to the process unit Do not place floppy disks near the process unit 1 5 2 1 5 3 Removing the principal outer covers 1 Removing the front top cover face down output tray 1 Open the front top cover 2 Remove two screws 3 Remove the top cover face down output tray Top cover Top cover face down output tray Figure 1 5 2 Removing the top cover face down output tray 2FM 2 Removing the right cover 3 Unlatch the six snaps and one hook hole on the chassis remove the right cover 1 Remove one screw 2 Remove the side cover 2FM SAN ox Ys N e CG A s Snap Hook inside cover i gt BS Zen 8 LZ N Z E 5 NO tigi 8 J iHi E Er o Lor 3
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FS-1020D Service Manual

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