Kyocera ECOSYS FS-1350DN Service Manual Download Page 63

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2H4

1-5-11

1-5-4 Developing section

(1) Detaching and refitting the developing unit

Procedure

1. Open the top cover.
2. Open the front cover.
3. Remove the developing unit (with toner con-

tainer).

4. Check or replace the developing unit and

refit all the removed parts.

Figure 1-5-15

Developing unit

Front cover

Top cover

Summary of Contents for ECOSYS FS-1350DN

Page 1: ...SERVICE MANUAL Published in October 2008 842H4010 2H4SM060 First Edition FS 1350DN ...

Page 2: ...icials for details in your area for proper disposal ATTENTION IL Y A UN RISQUE D EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT METTRE AU REBUT LES BATTERIES UTILISEES SELON LES INSTRUC TIONS DONNEES Il peut être illégal de jeter les batteries dans des eaux d égout municipales Vérifiez avec les fonc tionnaires municipaux de votre région pour les détails concernant des déche...

Page 3: ...Revision history Revision Date Replaced pages Remarks ...

Page 4: ...This page is intentionally left blank ...

Page 5: ...rsonnel 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 ...

Page 6: ... 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 symbol indicates a warning including danger and caution The specific point of attention is shown inside the symbol General warning Warning of risk of electric shock Warning of high temperature indicates a prohibited ...

Page 7: ... or dusty place This may cause fire or electric shock Do not install the copier near a radiator heater other heat source or near flammable material This may cause fire Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool as possible Insufficient ventilation may cause heat buildup and poor copying performance Always handle the machine by the correct l...

Page 8: ... carefully 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 Never attempt to disassemble the optical unit in machines using lasers Leaking laser light may damage eyesight Handle the charger section...

Page 9: ...r trapped wire and missing screws Check that all the caution labels that should be present on the machine according to the instruction handbook are clean and not peeling Replace with new ones if necessary 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 wel...

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Page 11: ...ks 1 4 10 7 Unsharpness 1 4 10 8 Gray background 1 4 10 9 Dirt on the top edge or back of the paper 1 4 11 10 Undulated printing at the right edge scanning start position 1 4 11 1 4 4 Electric problems 1 4 12 1 4 5 Mechanical problems 1 4 14 1 5 Assembly and Disassembly 1 5 1 Precautions for assembly and disassembly 1 5 1 1 Precautions 1 5 1 2 Drum 1 5 1 3 Toner container 1 5 1 4 How to tell a gen...

Page 12: ...nloading the firmware from the memory card 1 6 4 2 1 Mechanical Construction 2 1 1 Paper feed conveying section 2 1 1 1 Cassette paper feed section 2 1 1 2 MP tray paper feed section 2 1 2 3 Paper conveying section 2 1 3 2 1 2 Drum section 2 1 4 1 Drum section 2 1 4 2 Main charger unit 2 1 5 2 1 3 Expose section 2 1 6 1 Laser scanner unit 2 1 6 2 1 4 Developing section 2 1 8 2 1 5 Transfer separat...

Page 13: ...time 6 seconds or less A4 feed from cassette Warm up time 120 V AC model Power on 20 seconds or less 22 C 71 6 F 60 RH Sleep 15 seconds or less 22 C 71 6 F 60 RH 220 240 V AC model Power on 19 seconds or less 22 C 71 6 F 60 RH Sleep 14 seconds or less 22 C 71 6 F 60 RH Paper capacity Cassette 250 sheets 80 g m2 A4 Letter or smaller MP tray 50 sheets 80 g m2 A4 Letter or smaller Output tray capacit...

Page 14: ...60 Hz 7 5 A 220 to 240 V AC 50 60 Hz 3 9 A Power consumption 120 V AC model Maximum 910 W During printing 532 W During standby 11 W EcoFuser ON 67 W EcoFuser OFF 220 240 V AC model Maximum 967 W During printing 484 W During standby 12 W EcoFuser ON 75 W EcoFuser OFF Options Expanded memory Paper feeder 2 Operating noise During printing LpA 54 dB A During standby LpA 30 dB A During sleep mode Immea...

Page 15: ... 5 1 Top cover 2 Paper stopper 3 Top tray 4 Operation panel 5 Right side cover 6 Cassette 7 Front cover 8 MP tray 9 Sub tray 10 Optional interface slot cover 11 USB interface connector 12 Network interface connector 13 Rear cover 14 Power cord connector 15 Power switch 16 USB memory slot ...

Page 16: ...2H4 1 1 4 2 Operation panel Figure 1 1 2 1 2 3 4 5 5 5 5 6 9 7 8 1 Ready indicator 2 Data indicator 3 Attention indicator 4 Message display 5 Cursor keys 6 GO key 7 CANCEL key 8 OK key 9 MENU key ...

Page 17: ...er path Light path Paper path option 1 Cassette 2 MP tray 3 Paper feed conveying section 4 Toner container 5 Developing unit 6 Main charger unit 7 Drum unit 8 Laser scanner unit 9 Transfer separation section 10 Fuser section 11 Paper exit section 12 Top tray 13 Duplex conveying section ...

Page 18: ...2H4 1 1 6 This page is intentionally left blank ...

Page 19: ...re and cool or hot direct air Avoid places subject to dust and vibrations 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 mer cury acidic of alkaline vapors inorganic gasses NOx SOx gases and chlorine based orga...

Page 20: ... AC model 220 240 V AC model 1 Printer 2 Outer case 3 Bottom pad L 4 Bottom pad R 5 Machine cover 6 Top pad L 7 Top pad R 8 Accessory spacer 9 Toner container 10 Plastic bag 11 Power cord 12 Rear right pad 13 Plastic bag 14 Installation guide 15 EEA information leaflet 16 Operation guide ...

Page 21: ...2H4 1 2 3 1 Removing the tapes Procedure 1 Remove three tapes Figure 1 2 3 Tape Tape Tape ...

Page 22: ...nsert the expanded memory into the mem ory socket so that the notches on the mem ory align with the corresponding protrusions in the slot 6 Close the memory slot cover 7 Refit the right side cover 8 Print a status page to check the memory expansion See page P 1 3 2 If memory expansion has been properly per formed information on the installed memory is printed with the total memory capacity has bee...

Page 23: ...n the rear cover 3 Remove two screws and then remove the optional interface slot cover Figure 1 2 6 4 Insert the memory card into the memory card slot Push it in all the way 5 Secure the optional interface slot cover by using two screws 6 Close the rear cover 7 Format the memory card before use Figure 1 2 7 Optional interface slot cover Screw Screw Rear cover Optional interface slot cover Screw Sc...

Page 24: ...2H4 1 2 6 This page is intentionally left blank ...

Page 25: ...ess the MENU key Message display To print a status page for service purpose To print a network status page Prints a test page which contains halftone To write data into a USB memory To initialize the developing unit toner install mode Press the or key several times until Adjust Maintenance is displayed Maintenance mode items Press the key Press the key Press the or key several times until Service ...

Page 26: ...splayed Two pages will be printed Completion Figure 1 3 1Service status page 1 Print Status Page Firmware version 2H4_2000 000 000 1 Standard Size Option Slot Total Size Controller Information 2008 09 27 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXXXXXXXXXX 500 0 KB 500 0 KB 10000 0 KB Local Time Zone Time Server 01 00_Amsterdam 10 183 53 13 Default Pattern Switch Default Font Number FRPO parameter...

Page 27: ...ersion Operation panel mask version Machine serial number Standard memory size Option slot memory size Total memory size Local time zone TIme server Optional paper feeder installing information Paper feeder 1 Optional paper feeder installing information Paper feeder 2 Optional memory card installing information Page of relation to the A4 Letter Coverage on the final output page FRPO setting ...

Page 28: ...FFFFFFFFF FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF 00 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000...

Page 29: ...nd f Mac address Destination information Area information Printable area setting Margin settings 0 0 a b a Top margin b Left margin Top offset for each bin 0 0 0 0 0 a b c d e a MP tray b Cassette 2 c Cassette 3 d Duplex e Page rotation Left offset for each bin 0 0 0 0 0 a b c d e a MP tray b Cassette 2 c Cassette 3 d Duplex e Page rotation L value settings 0 0 0 0 0 0 0 0 a b c d e f g h a Top ma...

Page 30: ...h Billing counting timing Temperature machine inside LXI calibration information Fixed asset number Media type Weight 0 Light 1 Normal 1 2 Normal 2 3 Normal 3 4 Heavy 1 5 Heavy 2 6 Heavy 3 7 Extra Heavy Fuser 0 Hi 1 Middle 2 Low 3 Vellum Duplex 0 Disable 1 Enable SPD information RFID information RFID reader writer version information Engine parameter information Hexadecimal 512 bytes DRT table num...

Page 31: ...nt Test Page 2 Press the OK key Print Test Page will be displayed 3 Press the OK key A sheet of test page will be printed Completion Figure 1 3 3 Write data USB memory data write Description To write data into a USB memory Procedure Install the USB memory before attempting to write data 1 Enter the maintenance mode Write data 2 Press the OK key Write Data will be displayed 3 Press the OK key Data ...

Page 32: ...e printer ready A new developing unit needs approximately 260 g for triggering the sensor inside Purpose To execute when the developing unit has been replaced Method 1 Enter the maintenance mode Developer 2 Press the OK key Developer will be displayed 3 Press the OK key Ready will be displayed 4 Turn off and on the printer Self test Please wait Adding toner will displayed The printer continually e...

Page 33: ...ments Procedure 1 Connect the USB or network cable between printer and PC network 2 Connect the power cord Figure 1 3 4 3 Turn printer power on Make sure the printer is ready 4 Send the following PRESCRIBE command sequence from the PC to the printer R KCFG ELOG EXIT Note To send a PRESCRIBE command sequence to the printer use COMMAND CENTER the printer s embedded web while the printer is connected...

Page 34: ...0023 12 13 14 15 16 17 18 19 20 21 22 23 T00 M01 10 20 Counter Log Event Descriptions 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 10 48 01 88 01 01 8 7 6 5 4 3 2 1 Count 1111...

Page 35: ...unt Event Remembers 1 to 16 of occurrence If the occurrence of the previ ous paper jam is less than 16 all of the paper jams are logged When the occurrence excessed 16 the old est occurrence is removed The total page count at the time of the paper jam Log code 2 digit hexa decimal 6 categories a Cause of a paper jam b Position of paper jam c Paper source d Paper size e Paper type f Paper exit ...

Page 36: ...feed sensor 32 Cassette 2 32 Paper remains at the paper feeder 1 s PF paper feed sensor when power is turned on 32 Cassette 2 40 Paper does not arrive at the paper feeder 2 s PF paper feed sensor 33 Cassette 3 41 Paper does not pass the paper feeder 2 s PF paper sensor 33 Cassette 3 42 Paper remains at the paper feeder 2 s PF paper feed sensor when power is turned on 33 Cassette 3 A1 Paper does no...

Page 37: ... 33 Folio 34 Western type 2 35 Western type 4 e Detail of paper type Hexadecimal 01 Plain 02 Transparency 03 Preprint 04 Labels 05 Bond 06 Recycle 07 Vellum 08 Rough 09 Letter head 0A Color 0B Prepunched 0C Envelope 0D Cardstock 0E Coated 0F 2nd side 10 Media 16 11 High quality 15 Custom 1 16 Custom 2 17 Custom 3 18 Custom 4 19 Custom 5 1A Custom 6 1B Custom 7 1C Custom 8 f Detail of paper exit lo...

Page 38: ...tection are logged The total page count at the time of the Toner Empty error with using an unknown toner container Unknown toner log code 1 byte 2 categories First byte 01 Fixed Toner container Second byte 00 Black Fixed Counter Log Comprised of three log counters includ ing paper jams self diagnostics errors and replacement of the toner con tainer g Jam h Self diagnostic error i Maintenance item ...

Page 39: ... paper misfed in the printer pull out the paper cassette open the front cover rear cover or duplexer s cover or remove the drum unit Figure 1 4 1 2 Paper misfeed detection condition Figure 1 4 2 Attention indicator Paper jam Printer Paper misfeed location Paper misfeed display Peper feeder 1 Option Peper feeder 2 Option Printer Registration sensor Paper sensor MP paper sensor Exit sensor PF paper ...

Page 40: ...ration panel An error message consists of a message prompting a contact to service personnel total print count and a four digit error code indicating the type of the error The display varies depending on the type of the error Figure 1 4 3 Call service 6000 012345 Error power off F030 Call service F000 Attention indicator Error code Total number of pages Attention indicator Error code Attention ind...

Page 41: ...ol PWB See page 1 5 19 0170 Billing counting error Defective control PWB Replace the control PWB See page 1 5 19 0420 Paper feeder communication error Communication error between control PWB and optional paper feeder Improper installa tion paper feeder Follow installation instruction carefully again Defective harness between control PWB YC318 and paper feeder inter face connector or improper conne...

Page 42: ...t Replace the laser scanner unit See page 1 5 29 Defective control PWB Replace the control PWB See page 1 5 19 4200 BD error laser scanner unit error Defective laser scanner unit Replace the laser scanner unit See page 1 5 29 Defective control PWB Replace the control PWB See page 1 5 19 6000 Broken fuser heater lamp wire The fuser temperature does not rise after the fuser heater lamp has been turn...

Page 43: ...ve harness between power source PWB YC103 and high voltage PWB YC201 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness See page 1 5 24 Defective power source PWB Replace the power source PWB See page 1 5 22 Defective control PWB Replace the control PWB See page 1 5 19 F000 Control PWB Operation pane...

Page 44: ...control PWB Turn the power switch off on to restart the printer If the error is not resolved replace control PWB See page 1 5 19 F050 Control PWB engine checksum error Some error may have occurred when downloading the firmware of the control PWB Download the firmware of the control PWB again using the memory card See page 1 6 4 Defective control PWB Turn the power switch off on to restart the prin...

Page 45: ...e page 1 4 9 See page 1 4 9 See page 1 4 9 6 Black vertical streaks 7 Unsharpness 8 Gray background 9 Dirt on the top edge or back of the paper 10 Undulated print ing at the right edge scanning start posi tion See page 1 4 10 See page 1 4 10 See page 1 4 10 See page 1 4 11 See page 1 4 11 ABC 123 ABC 123 ABC 123 ABC 123 ABC 123 ABC 123 This vertical line should be straight ...

Page 46: ...eck the high voltage PWB visually and correct or replace if necessary See page 1 5 24 Defective laser scanner unit Replace the laser scanner unit See page 1 5 29 Defective control PWB Replace the control PWB See page 1 5 19 Print example Causes Check procedures corrective measures Defective main charger unit Open the top cover and check that the drum unit and develop ing unit are correctly seated ...

Page 47: ... one that satisfies the paper specifica tions Defective transfer roller installation The transfer roller must be supported by the bushes at the both ends Clean the bush to remove oil and debris Replace the transfer roller if necessary See page 1 5 14 Defective transfer bias output Replace the high voltage PWB or control PWB See page 1 5 24 or 1 5 19 Print example Causes Check procedures corrective...

Page 48: ...the both ends Clean the bush to remove oil and debris Replace the transfer roller if necessary See page 1 5 14 Defective transfer bias output Replace the high voltage PWB or control PWB See page 1 5 24 or 1 5 19 EcoPrint mode setting The EcoPrint mode can provides faint unsharp printing because it acts to conserve toner for draft printing purpose For normal printing turn the EcoPrint mode off by u...

Page 49: ...the drum and developing unit and the fuser unit inlet Clean these areas and parts to remove toner Defective transfer roller If the transfer roller is contaminated with toner clean the trans fer roller using a vacuum cleaner or by continuously printing a low density page until the symptom has faded away Print example Causes Check procedures corrective measures Defective polygon motor laser scan ner...

Page 50: ...ector Also check for continuity within the con nector harness If none remedy or replace the harness Defective control PWB Replace the control PWB See page 1 5 19 3 Left cooling fan motor does not oper ate Broken left cooling fan motor coil Check for continuity across the coil If none replace the left cool ing fan motor Defective harness between left cooling fan motor and control PWB YC104 or impro...

Page 51: ...Defective control PWB Replace the control PWB See page 1 5 19 9 Eraser lamp does not turn on Defective harness between eraser lamp YC701 and control PWB YC316 or improper connector inser tion Reinsert the connector Also check for continuity within the con nector harness If none remedy or replace the harness Defective eraser lamp PWB Replace the eraser lamp PWB See page 1 5 31 Defective control PWB...

Page 52: ...ime Check if the separator pad or MPF separation pad duplex model only is worn Replace the separator pad if it is worn Check if the paper is curled Replace the paper 5 Paper jams Check if the paper is excessively curled Replace the paper Check if the contact between the upper and lower registration rollers is correct Check visually and remedy if necessary Check if the heat roller or press roller i...

Page 53: ...re not to get the wire caught 2 Drum Note the following when handling or storing the drum When removing the drum unit never expose the drum surface to strong direct light Keep the drum at an ambient temperature between 0 C 32 F and 40 C 104 F and at a relative humidity not higher than 90 RH Avoid abrupt changes in temperature and humidity Avoid exposure to any substance which is harmful to or may ...

Page 54: ...A black colored band when seen through the left side window A shiny or gold colored band when seen through the right side window The above will reveal that the toner container is a genuine Kyocera Mita branded toner container otherwise it is a coun terfeit Figure 1 5 1 The brand protection seal has an incision as shown below to prohibit reuse Figure 1 5 2 Validation viewer Validation viewer Brand ...

Page 55: ...edure 1 Open the top cover 2 Remove two screws Figure 1 5 3 3 Extract the boss from the hole 4 Unhook the A hook 5 Unhook two B hooks 6 Remove the connector 7 Remove the top cover Figure 1 5 4 Top cover Screw Screw Top cover Top cover Connector Boss B hook B hook A hook Hole ...

Page 56: ...refitting the right and left covers Procedure 1 Remove the top cover See page 1 5 3 2 Remove the cassette See page 1 5 6 3 Open the front cover 4 Unhook seven hooks and then remove the right cover Figure 1 5 5 Right cover Hooks ...

Page 57: ...2H4 1 5 5 5 Unhook seven hooks and then remove the left cover Figure 1 5 6 Left cover Hooks ...

Page 58: ...per feed roller assembly paper feed roller and pickup roller Procedure 1 Remove the cassette Figure 1 5 7 2 Slide the feed shaft 3 While pressing the lever and then remove the paper feed roller assembly Figure 1 5 8 Cassette Paper feed roller assembly Lever Feed shaft ...

Page 59: ...efit all the removed parts When refitting the paper feed roller assem bly be sure to align the paper feed roller pivot with the slotted hole on the feed shaft Figure 1 5 9 Paper feed roller assembly Paper feed roller assembly Feed shaft Feed shaft Pivot Slotted hole ...

Page 60: ...ove the cassette See page 1 5 6 2 Push the bottom plate down until it locks 3 Unhook two hooks and then remove the retard guide Figure 1 5 10 4 Remove the retard roller assembly Figure 1 5 11 Retard guide Cassestte Cassette Hook Hook Hook Hook Bottom plate Retard roller Assembly ...

Page 61: ...etard roller assembly and refit all the removed parts Caution Before refitting the retard roller assembly firmly install the spring onto the projection of the retard roller assembly Figure 1 5 12 Spring Retard roller assembly Projection ...

Page 62: ...er feed roller Figure 1 5 13 5 Check or replace the MP paper feed roller and refit all the removed parts When refitting the MP paper feed roller be sure to align the MPF feed shaft pivot with the slotted hole on the MP paper feed roller Figure 1 5 14 MP feed holder Lever Front cover MP paper feed roller MP paper feed roller MPF feed shaft Pivot MP paper feed roller Slotted hole ...

Page 63: ...fitting the developing unit Procedure 1 Open the top cover 2 Open the front cover 3 Remove the developing unit with toner con tainer 4 Check or replace the developing unit and refit all the removed parts Figure 1 5 15 Developing unit Front cover Top cover ...

Page 64: ...Drum section 1 Detaching and refitting the drum unit Procedure 1 Remove the developing unit See page 1 5 11 2 Remove the drum unit 3 Check or replace the drum unit and refit all the removed parts Figure 1 5 16 Drum unit ...

Page 65: ...2 2 Remove the tape 3 While pushing on the main plate slide the main charger unit Figure 1 5 17 4 Remove the main charger unit by lifting it 5 Check or replace the main charger unit and refit all the removed parts Figure 1 5 18 Main plate Drum unit Main charger unit Main charger unit Tape Main charger unit ...

Page 66: ...ing the transfer roller Procedure 1 Remove the developing unit See page 1 5 11 2 Remove the drum unit See page 1 5 12 3 Slide the paper chute guide and unhook the hooks 4 Remove the paper chute guide Figure 1 5 19 Hook Hook Hook Hook Paper chute guide Paper chute guide ...

Page 67: ... and refit all the removed parts Caution When refitting the transfer roller be careful about following point Push the release lever to raise the lever end then insert the front of gear Z16 under the release lever end Figure 1 5 21 Transfer roller Shaft Shaft Transfer roller Transfer bush Transfer bush Gear Z16 Release lever Gear Z16 Transfer bush Transfer bush Transfer roller ...

Page 68: ...he fuser unit Procedure 1 Remove the outer covers See page 1 5 3 2 Remove two connectors 3 Release the wires form wire clamps Figure 1 5 22 4 Remove the connector Figure 1 5 23 Connector Fuser heater lamp Connector Fuser thermistor Wire clamps Wires Connector ...

Page 69: ...e rear cover and then remove the rear cover Figure 1 5 24 6 Remove two screws and then remove the fuser unit 7 Check or replace the fuser unit and refit all the removed parts Figure 1 5 25 Rear cover Screw Screw Fuser unit ...

Page 70: ...easing the fuser pressure could cause loose toner fusing Procedure 1 Remove the cassette See page 1 5 6 2 Open the duplex cover 3 Slide the fuser lever R and L Normal Flush with the front of the machine Fuser pressure decreased Flush with the rear of the machine Figure 1 5 26 Fuser lever R Duplex cover Fuser lever L Fuser lever L R Fuser lever L R Normal Fuser pressure decreased ...

Page 71: ...tting the control PWB Procedure 1 Remove the right cover See page 1 5 4 2 Remove the thirteen connectors form the control PWB 3 Release the wires from the wire clamps Figure 1 5 27 Connectors Twelve Connector Control PWB Control PWB Wire clamps ...

Page 72: ...emove five screws 5 Remove the four connectors form the con trol PWB 6 Unhook the hook and then remove the con trol PWB assembly Figure 1 5 28 Hook Screws Control PWB assembly Control PWB Screw Screws Connectors Four ...

Page 73: ...PWB 8 Check or replace the control PWB and refit all the removed parts To replace the control PWB remove the EEPROM U300 from the old control PWB and mount it to the new control PWB Figure 1 5 29 Screw Screw Screw Screw Screw Control PWB Control PWB U300 EEPROM ...

Page 74: ... Figure 1 5 30 3 Remove four P tight screws two screws and ground terminal 4 Remove the power source PWB assembly from the high voltage PWB s connector Figure 1 5 31 Connector Connector Connector Connector Power source PWB assembly P tight screws P tight screws Ground terminal Screws Connector YC201 High voltage PWB Connector YC103 ...

Page 75: ...rce plate from the power source PWB 6 Check or replace the power source PWB and refit all the removed parts Caution The power source film must be installed in the specified position Figure 1 5 32 Power source PWB Screws Screws Power source plate Power source film ...

Page 76: ... 5 12 3 Remove the cassette See page 1 5 6 4 Remove the outer covers See page 1 5 3 5 Remove the power source PWB See page 1 5 22 6 Turn the printer with the bottom side up 7 Remove the stop ring 8 Remove the DU holder Figure 1 5 33 9 Pull out the DU bush 10 Remove the DU cover assembly Figure 1 5 34 Stop ring DU holder DU bush DU cover assembly ...

Page 77: ...2H4 1 5 25 11 Remove four screws 12 Unhook three hooks and then remove the lower base cover Figure 1 5 35 Screws Screws Hook Hook Hook Lower base cover Lower base cover ...

Page 78: ...in Figure 1 5 36 15 Remove two connectors and then remove the high voltage PWB 16 Remove the cassette pin holder from the high voltage PWB Figure 1 5 37 Spring Cassette pin Cassette pin holder High voltage PWB High voltage PWB Connector Connector YC202 YC203 ...

Page 79: ...e high voltage PWB Each interface is firmly in contact with each spring The bias contact pin must be installed in the specified position The cassette pin must be inserted in the cassette pin holder Figure 1 5 38 OK NG High voltage PWB High voltage PWB High voltage PWB Cassette pin Cassette pin holder Ground plate Bias contact pin Spring Main charger Spring separation Spring Developing Spring Trans...

Page 80: ...ocedure 1 Remove the right cover See page 1 5 4 2 Remove the connector Figure 1 5 39 3 Remove the M3 screw and two M4 screws 4 Remove the main motor 5 Check or replace the main motor and refit all the removed parts Figure 1 5 40 Connector Main motor M3 Screw M4 screws ...

Page 81: ...ting the laser scanner unit Procedure 1 Remove the right cover See page 1 5 4 2 Remove the connector from the control PWB 3 Release the wire clamp 4 Draw in the connector inside Figure 1 5 41 Wire clamp Connector Connector Control PWB ...

Page 82: ...2H4 1 5 30 5 Remove four screws and then remove the laser scanner unit 6 Check or replace the laser scanner unit and refit all the removed parts Figure 1 5 42 Screws Screws Laser scanner unit ...

Page 83: ...connector 3 Slide the eraser holder 4 Unhook the hooks and then remove the eraser holder Figure 1 5 43 5 Remove the eraser lamp PWB from the eraser holder 6 Check or replace the eraser lamp PWB and refit all the removed parts Figure 1 5 44 Eraser holder Eraser holder Hooks Hooks Hooks Hook Connector Eraser holder Eraser lamp PWB ...

Page 84: ...ng fan motor and right cooling fan motor When detaching or refitting the left cooling fan motor or right cooling fan motor be careful of the airflow direction intake or exhaust Figure 1 5 45 Left cooling fan motor Right cooling fan motor Exhaust Intake ...

Page 85: ...d file Build number Update history Classification Normally 0 Supplement Normally 00 Firmware category 30 System Main 31 System BROM Extention Extention Product code 2H4 This printer Pause underscore Software ID Build number Update history Classification Normally 0 Supplement Normally 00 Firmware category 10 Engine Engine firmware Master download file DL_CTRL 2H4 2H4_3000 000 088 bin 2H4_3100 000 0...

Page 86: ...directory of the USB memory 4 Remove the USB memory from the PC s USB slot 5 Insert the USB memory into the printer s USB memory slot Figure 1 6 2 6 Turn printer power on 7 When message display 1 is displayed to detect firmware in the USB memory 8 Message display 2 is displayed during downloading 9 When message display 3 is displayed to indicate downloading is finished Figure 1 6 3 USB memory USB ...

Page 87: ...r power off 11 Remove the USB memory from USB mem ory slot 12 Turn printer power on 13 Print the service status page to check that the firmware version has been updated See page P 1 3 7 Figure 1 6 4 USB memory USB memory slot ...

Page 88: ... 3 Remove two screws and then remove the optional interface slot cover 4 Insert the memory card into the memory card slot Figure 1 6 5 5 Turn printer power on 6 Press MENU key on the printer s operation panel and carry out the memory card for matting procedure 1 7 When formatting is complete turn printer power off Figure 1 6 6 Optional interface slot cover Screw Screw Memory card slot Memory card ...

Page 89: ...e PC s slot or to the adaptor 10 Copy the firmware files to download to the root directory of the memory card 11 Remove the memory card from the PC s slot or the adaptor Figure 1 6 8 12 Insert the memory card into the memory card slot Figure 1 6 9 Memory card To PC Memory card Adapter Memory card reader Memory card ...

Page 90: ...ard slot 19 Refit the optional interface slot cover 20 Turn printer power on 21 Print the status page to check that the firm ware version has been updated See page P 1 3 7 Figure 1 6 11 2 1 supervisor mode CF card reading supervisor mode 3 2H4_1000 000 024 E1F9 Message display Supplement Normally 00 Classification Normally 0 Product code 2H4 This printer Checksum Update history Build number Firmwa...

Page 91: ...to the transfer separation section 1 Cassette paper feed section Figure 2 1 1 Cassette paper feed section Figure 2 1 2Cassette paper feed section block diagram 1 9 7 3 4 5 2 6 8 10 11 1 Pickup roller 2 Paper feed roller 3 Feed holder 4 Retard roller 5 Retard holder 6 Retard guide 7 Bottom plate 8 Bottom pad 9 Cassette base 10 Paper sensor 11 Actuator paper sensor FEDDRN MMOTRDYN Paper sensor Paper...

Page 92: ...aper feed roller 2 MPF separation pad 3 MPF separator 4 MPF bottom plate 5 MPF friction pad 6 MP paper sensor 7 Actuator MP paper sensor 8 MPF frame 9 MPF guide R L 10 MPF base 11 MPF middle tray 12 MPF upper tray 13 MPF turn guide MMOTRDYN MPFDRN MP paper sensor MP paper feed solenoid Main motor Control PWB HANDSN MOTCLK REMOTEN YC330 3 YC335 2 YC331 3 YC331 4 YC331 5 ...

Page 93: ...ion block diagram 1 4 3 5 2 1 Lower registration roller 2 Upper registration roller 3 Registration sensor 4 Actuator registration sensor 5 Feed pulley MMOTRDYN REGDRN Registration clutch Main motor Control PWB Registration sensor High voltage PWB REGN MOTCLK REMOTEN YC337 11 YC334 2 YC331 3 YC331 4 YC331 5 ...

Page 94: ... 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 drum 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 prob lem The limit is appro...

Page 95: ...zation after a long run Therefore the charger wire must be cleaned at a specific interval Cleaning the charging wire prevents print quality problems such as black streaks Figure 2 1 8 Main charger unit Figure 2 1 9 Drum unit and main charger unit block diagram 1 4 2 3 1 Main charger shield 2 Main charger wire 3 Main charger grid 4 Main charger wire cleaner Main charger wire Main charger shield Mai...

Page 96: ...length beam is dispersed as the polygon motor revolves to reflect the laser beam over the drum Various lenses and mirror are housed in the laser scanner unit adjust the diameter of the laser beam and focalize it at the drum surface Figure 2 1 10 Laser scanner unit 1 2 3 4 5 7 6 1 Polygon motor mirror 2 F θ lens 3 F θ lens 4 LSU mirror 5 LSU shutter 6 LSU frame 7 LSU cover ...

Page 97: ...2 1 11 Laser scanner unit 1 2 3 8 9 10 4 5 6 7 1 Polygon motor mirror 2 Laser diode APC PWB 3 Collimator lens 4 Cylindrical lens 5 F θ lens 6 F θ lens 7 PD mirror 8 SOS lens 9 Pin photo diode sensor PD PWB 10 LSU mirror ...

Page 98: ...n a positive charge The positively charged toner is then attracted to the areas of the drum which was exposed to the laser light The gap between the drum and the magnet sleeve is approximately 0 32 mm The non exposed areas of the drum 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...

Page 99: ... PWB is applied to the transfer roller for transfer charging Paper after transfer is separated from the drum Figure 2 1 14 Transfer separation section Figure 2 1 15 Transfer separation section block diagram 1 4 2 3 5 1 Transfer roller 2 Transfer bushes 3 Discharger brush 4 DC brush holder 5 Paper chute guide Transfer roller High voltage PWB Transfer bias Discharger brush T S Separation bias ...

Page 100: ... then 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 to the light emitted from the eraser lamp PWB This lowers the electrical conductivity of the drum sur face making the residual charge on the drum surface escape to the groun...

Page 101: ...e separators claws prevent the paper on which toner has been fused from being wound around the heat roller causing paper jam The press 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 press springs The tem perature of the heat roller is constantly monitored by the control PWB using the fuser thermistor Should th...

Page 102: ...ction block diagram N L THERM HEATN SLEEP ZCROSS YC102 1 YC102 3 YC103 6 YC103 7 YC103 8 Fuser unit Fuser thermistor Fuser heater lamp Fuser thermal cutout Power source PWB Control PWB High voltage PWB YC337 5 YC337 6 YC337 3 YC337 16 ...

Page 103: ...or in the fuser unit and is led by the guide comprised of the rear cover frame and the FD cover guide finally reaching the FD roller The paper is delivered to the top tray by the rotation of the FD roller Figure 2 1 20 Paper exit section 3 4 10 5 8 7 6 1 9 2 1 Exit roller 2 Fuser exit pulley 3 Middle pulley 4 Rear cover 5 FD roller 6 Exit pulley 7 FD cover 8 Top tray 9 Exit sensor 10 Actuator exit...

Page 104: ...2H4 2 1 14 Figure 2 1 21 Paper exit section block diagram EXITN Fuser unit Exit sensor Control PWB YC333 3 ...

Page 105: ...on when duplex printing Figure 2 1 22 Duplex conveying section Figure 2 1 23 Duplex paper conveying section block diagram 1 9 10 2 3 5 6 7 8 4 1 DU cover B 2 DU holder 3 Middle pulley B 4 DU roller 5 DU cover A 6 Lower base cover 7 Feed roller 8 Feed pulley 9 Exit sensor 10 Actuator exit sensor EXITN DUDR1 DUDR2 Fuser unit Exit sensor Duplex solenoid Control PWB YC333 3 YC343 1 YC343 3 ...

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Page 107: ...full wave rectification of AC power source input switching for converting to 24 V DC for output Controls the fuser heater lamp 3 High voltage PWB Generates main charging developing bias transfer bias and separation charger bias 4 Operation panel PWB Consists the LCD LED indicators and key switches 5 APC PWB Generates and controls the laser beam 6 PD PWB Controls horizontal synchronizing timing of ...

Page 108: ...er sensor Detects the presence of paper in the cassette 6 MP paper sensor Detects the presence of paper on the MP tray 7 Exit sensor Detects paper jam in the fuser or duplex conveying section 8 Toner sensor Detects the quantity of toner in a toner container 9 Fuser thermistor Measures the heat roller temperature 10 Fuser thermal cutout Shuts off the power source to the fuser heater lamp when the h...

Page 109: ...ling fan motor Cools the interior of machine 5 Registration clutch Controls the secondary paper feed 6 Paper feed clutch Controls the paper cassette paper feed 7 Developing clutch Controls the toner feed 8 Duplex solenoid Controls the paper conveying at the duplex conveying section 9 MP paper feed solenoid Controls the MPF bottom plate of the MP tray 10 Fuser heater lamp Heats the heat roller Mach...

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Page 111: ...ck diagram 24V1 SLEEP 24V1 24V2 FAN 3 3V2 ZCROSS HEATN THERM Power source PWB Left cooling fan motor Fuser thermistor Fuser thermal cutout Fuser unit Switching regulator circuit Zero cross signal circuit AC input Interlock switch Power switch Fuser heater lamp control circuit Fuser heater lamp ...

Page 112: ...0 24 V DC Left cooling fan motor On Off 4 THERM O Analog Fuser thermistor detection voltage 5 3 3V2 I 3 3 V DC 3 3 V DC power source 6 HEATN I 0 3 3 V DC Fuser heater lamp On Off 7 SLEEP I 0 3 3 V DC Sleep mode signal On Off 8 ZCROSS O 0 3 3 V DC pulse Zero cross signal 9 24V2 O 24 V DC 24 V DC power source via interlock switch 10 24V2 O 24 V DC 24 V DC power source via interlock switch 11 PGND Gr...

Page 113: ...ry DIMM Engine I F Duplex solenoid Developing clutch MP paper feed solenoid Registration clutch Paper feed clutch Paper feed sensor MP paper feed sensor Main motor Exit sensor Toner sensor High voltage PWB Right Left cooling fan motors Eraser lamp Optional paper feeder I F Network I F USB I F Device USB I F Host Operation panel PWB I F Memory card I F KUIO I F ...

Page 114: ...331 YC339 YC337 YC11 1 2 23 24 U300 YC344 YC301 YC330 YC340 YC341 YC1 YC338 1 1 1 1 1 2 1 1 1 1 1 2 19 18 1 5 4 6 4 1 3 3 6 5 1 2 2 3 A1 A2 B1 B2 3 12 A29 A30 B29 B30 YC8 YC3 YC6 YC333 5 1 1 4 1 12 9 2 7 8 2 3 1 3 YS1 143 144 1 2 1 26 YC2 25 3 1 YC4 YC343 YC7 YC342 1 1 2 3 7 1 50 ...

Page 115: ...P O 0 3 3 V DC pulse Video data signal 10 OUTPEN O 0 3 3 V DC Laser output enable signal 11 SAMPLEN O 0 3 3 V DC Sample hold timing switching signal 12 3 3V2 O 3 3 V DC 3 3 V DC power source YC330 1 3 3V2 O 3 3 V DC 3 3 V DC power source Connected to the MP paper sen sor 2 SGND Ground 3 HANDSN I 0 3 3 V DC MP paper sensor On Off YC331 1 24V3 O 24 V DC 24 V DC power source Connected to the main mot...

Page 116: ...in charger output control signal 14 THVDR O 0 3 3 V DC Transfer bias output signal On Off 15 CASE I Analog Cassette switch On Off 16 THERM I Analog Fuser thermistor detection voltage 17 24V3 O 24 V DC 24 V DC power source 18 SGND Ground 19 YC339 1 24V2 I 24 V DC 24 V DC power source Connected to the high voltage PWB 2 24V2 I 24 V DC 24 V DC power source 3 PGND Ground 4 PGND Ground YC340 1 3 3V2 O ...

Page 117: ...eder 1 2 PGND Ground 3 PFSI I 0 3 3 V DC pulse Serial communication data input signal 4 PFSO O 0 3 3 V DC pulse Serial communication data output signal 5 PFSEL O 0 3 3 V DC Paper feeder selection signal 6 3 3V1 O 3 3 V DC 3 3 V DC power source Connector Pin Signal I O Voltage Description ...

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Page 119: ...YC3 YC6 YC11 USB I F USB I F Parallel I F YC2 YC1 YS1 YC2 Laser scanner unit DUDR1 COMMON DUDR2 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 24V3 3 3V2 GND HANDSN PGND PLGDRN PLGRDY PLGCLK PDN SGND VDON VDOP OUTPEN SAMPLEN PDN SGND NC 3 3V1 3 3V2 5 4 3 2 1 5 4 3 2 1 ERASER ERASRW 24V1 FAN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 19 1 2 3 4 1 2 3 4 1 2 3 4...

Page 120: ... 24 99 mm 1 Upper registration roller 37 68 mm 1 1 2 Lower registration roller 62 8 mm 2 1 2 Developing roller developing unit 45 216 mm 1 3 4 Transfer roller 73 162 mm 2 7 8 Heat roller fuser unit 78 5 mm 3 1 16 Press roller fuser unit 94 mm 3 11 16 Drum drum unit ...

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