Utax CLP 3521 Service Manual Download Page 144

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2HL/2HM/2HN

2-1-9

Figure 2-1-10Main charger unit block diagram

Drum unit M

Drum

High voltage

PWB

Engine PWB

Zener
PWB M

Main charger output M

Main charger output C

Main charger output Y

Main charger output K

Wire

Grid

Drum unit C

Drum

Zener
PWB C

Drum unit Y

Drum

Zener
PWB Y

Shield

Main charger unit C

Wire

Grid

Shield

Main charger unit Y

Wire

Grid

Shield

Main charger unit K

Wire

Grid

Shield

Main charger unit M

Drum unit K

Drum

Main

charger

cleaning

motor

Zener
PWB K

MMCNT

YC16-17

MCCNT

YC16-14

MYCNT

YC16-11

MKCNT

YC16-8

CN1-11

CN1-14

CN1-17

CN1-20

MCHMOTA YC36-1
MCHMOTB YC36-2

Summary of Contents for CLP 3521

Page 1: ...Service Manual Color Printer CLP 3521 CLP 3621 CLP 3626 Rev 2 0 Date 21 09 2010 2HNSM062 ...

Page 2: ...Service Manual Color Printer CLP 4521 CLP 4621 CLP 4626 Rev 2 0 Date 21 09 2010 2HNSM062 ...

Page 3: ...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 4: ... 1 3 2 1 3 3 1 3 4 1 3 5 1 3 6 1 3 7 1 3 9 1 3 10 1 3 14 1 3 15 1 3 16 1 3 17 1 3 18 1 4 3 1 4 4 1 4 8 1 4 9 1 4 10 1 4 11 1 4 12 1 4 13 1 4 14 1 4 15 1 4 16 1 4 17 1 4 18 1 4 19 1 4 20 1 5 3 1 5 32 1 5 34 1 5 41 1 6 1 1 6 2 1 6 6 2 2 3 2 2 4 2 4 2 2 4 2 2 December 11 2009 1 4 19 1 4 20 1 5 2 ...

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Page 6: ...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 7: ... 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 8: ... 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 9: ... 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 10: ...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 12: ... No image appears entirely white 1 4 22 2 No image appears entirely black 1 4 23 3 A specific color is printed solid 1 4 23 4 The back side gets dirty 1 4 23 5 Image is too light 1 4 24 6 The background is colored 1 4 24 7 White streaks are printed vertically 1 4 25 8 Black streaks are printed vertically 1 4 25 9 Streaks are printed horizontally 1 4 25 10 Spots are printed 1 4 25 11 The leading ed...

Page 13: ...gh voltage PWB 1 5 35 1 5 9 Others 1 5 38 1 Detaching and refitting the laser scanner unit 1 5 38 2 Detaching and refitting the ozone filter 1 5 40 3 Direction of installing the principal fan motors 1 5 41 1 6 Firmware 1 6 1 Downloading firmware 1 6 1 1 Firmware file 1 6 1 2 Downloading the firmware from the USB memory 1 6 2 3 Downloading the firmware from the memory card 1 6 4 2 1 Mechanical Cons...

Page 14: ...2HL 2HM 2HN 2 4 Appendixes 2 4 1 Appendixes 2 4 1 1 Wiring diagram 2 4 1 2 Repetitive defects gauge 2 4 3 3 Maintenance parts list 2 4 4 ...

Page 15: ...2HL 2HM 2HN This page is intentionally left blank ...

Page 16: ...ay A4 23 ppm B5 A5 A6 24 ppm After 16 pages the printing speed becomes 14 ppm Letter 24 ppm Legal 20 ppm Duplex printing speed A4 26 ppm B5 A5 A6 28 ppm After 16 pages the printing speed becomes 14 ppm Letter 28 ppm Legal 11 ppm First print out time B W 9 seconds or less Color 10 5 seconds or less Sleep 35 seconds or less Warm up time 23 C 60 RH Power on 36 seconds or less Sleep within 3 hours 30 ...

Page 17: ...5 kg 65 lbs Power source 120 V 60 Hz max 9 2 A U S A Canada 220 240 V 50 Hz 60 Hz max 4 7 A European countries Max Allowable voltage fluctuation 10 Max Allowable frequency fluctuation 2 Power consumption Maximum 1 233 W or less During printing 477 W During standby 79 W During sleep mode 7 W Power off 0 W Operating noise 2 During printing LpA 53 dB A During standby LpA 36 dB A During sleep mode Imm...

Page 18: ...A6 20 ppm After 16 pages the printing speed becomes 14 ppm Letter 20 ppm Legal 17 ppm Duplex printing speed A4 11 ppm B5 A5 A6 11 ppm After 16 pages the printing speed becomes 7 ppm Letter 11 ppm Legal 8 ppm First print out time B W 10 5 seconds or less Color 12 seconds or less Sleep 35 seconds or less Warm up time 23 C 60 RH Power on 44 seconds or less Sleep within 3 hours 25 seconds or less Pape...

Page 19: ...bs Power source 120 V 60 Hz max 9 2 A U S A Canada 220 240 V 50 Hz 60 Hz max 4 7 A European countries Max Allowable voltage fluctuation 10 Max Allowable frequency fluctuation 2 Power consumption Maximum 1 221 W or less During printing 420 W During standby 70 W During sleep mode 7 W Power off 0 W Operating noise 2 During printing LpA 53 dB A During standby LpA 36 dB A During sleep mode Immeasurably...

Page 20: ...A6 20 ppm After 16 pages the printing speed becomes 14 ppm Letter 20 ppm Legal 17 ppm Duplex printing speed A4 11 ppm B5 A5 A6 11 ppm After 16 pages the printing speed becomes 7 ppm Letter 11 ppm Legal 8 ppm First print out time B W 10 5 seconds or less Color 12 seconds or less Sleep 35 seconds or less Warm up time 23 C 60 RH Power on 44 seconds or less Sleep within 3 hours 25 seconds or less Pape...

Page 21: ...bs Power source 120 V 60 Hz max 9 2 A U S A Canada 220 240 V 50 Hz 60 Hz max 4 7 A European countries Max Allowable voltage fluctuation 10 Max Allowable frequency fluctuation 2 Power consumption Maximum 1 231 W or less During printing 405 W During standby 69 W During sleep Mode 7 W Power off 0 W Operating noise 2 During printing LpA 53 dB A During standby LpA 36 dB A During sleep mode Immeasurably...

Page 22: ... model 1 Operation panel 2 Front cover 3 Top cover Top tray 4 Paper stopper 5 MP tray 6 Cassette 7 Power switch 8 Left cover 9 Waste toner box 10 Main charger units 11 Toner container M 12 Toner container C 13 Toner container Y 14 Toner container K 15 Duplex unit B 16 Fuser cover A 17 Envelope switch 18 USB memory slot 19 USB interface 20 AC inlet 21 Optional interface slot 22 Network indicators 2...

Page 23: ...tray 4 Paper stopper 5 MP tray 6 Cassette 7 Power switch 8 Left cover 9 Waste toner box 10 Main charger units 11 Toner container M 12 Toner container C 13 Toner container Y 14 Toner container K 15 Duplex unit B 16 Fuser cover A 17 Envelope switch 18 USB memory slot 19 USB interface 20 AC inlet 21 Optional interface slot 22 Network indicators 23 Network interface 24 Right cover ...

Page 24: ...2HL 2HM 2HN 1 1 9 2 Operation panel Figure 1 1 3 1 2 3 5 5 5 6 9 4 5 7 8 1 Message display 2 Ready indicator 3 Data indicator 4 Attention indicator 5 Arrow keys 6 MENU key 7 OK key 8 GO key 9 CANCEL key ...

Page 25: ...Duplex unit B 4 Drum unit M 5 Drum unit C 6 Drum unit Y 7 Drum unit K 8 Main charger unit M 9 Main charger unit C 10 Main charger unit Y 11 Main charger unit K 12 Laser scanner unit MC 13 Laser scanner unit YK 14 Developing unit M 15 Developing unit C 16 Developing unit Y 17 Developing unit K 18 Toner container M 19 Toner container C 20 Toner container Y 21 Toner container K 22 Intermediate transf...

Page 26: ...6 Drum unit Y 7 Drum unit K 8 Main charger unit M 9 Main charger unit C 10 Main charger unit Y 11 Main charger unit K 12 Laser scanner unit MC 13 Laser scanner unit YK 14 Developing unit M 15 Developing unit C 16 Developing unit Y 17 Developing unit K 18 Toner container M 19 Toner container C 20 Toner container Y 21 Toner container K 22 Intermediate transfer unit 23 Transfer roller unit 24 Fuser u...

Page 27: ...2HL 2HM 2HN 1 1 12 This page is intentionally left blank ...

Page 28: ... 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 organi...

Page 29: ...500 sheet model 1 Printer 2 Toner container Yellow 3 Toner container Black 4 Toner container Cyan 5 Toner container Magenta 6 Waste toner box 7 Power cord 8 Main pad 9 Bottom pad 10 Bottom front side pad 11 Outer case 12 Top pad 13 Top tray 14 Top spacer 15 Machine cover 600 600 900 16 Desiccating agent 17 Machine cover 650 650 1200 18 Plastic bag 240 350 19 Operation guide 20 Warranty card 21 Lea...

Page 30: ... 21 23 ppm 250 sheet model 1 Printer 2 Toner container Yellow 3 Toner container Black 4 Toner container Cyan 5 Toner container Magenta 6 Waste toner box 7 Power cord 8 Document tray 9 Upper left cushion 10 Upper right cushion 11 Outer case 12 Machine cover 600 600 900 13 Cassette cushion 14 Desiccating agent 15 Main pad 16 Machine cover 650 650 1200 17 Bottom left cushion 18 Bottom right cushion 1...

Page 31: ...N 1 1 2 4 2 Removing the tape Procedure 1 Remove the tape A 1 Remove two tapes B and then remove the installation guide and desiccating agent Figure 1 2 4 Tape A Tape B Tape B Desiccating agent Installation guide ...

Page 32: ...e 1 2 5 3 Insert the expansion memory modules into the expansion memory socket so that the notches on the memory align with the corre sponding protrusions in the slot 4 Refit the main PWB 5 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 been increas...

Page 33: ...memory card while printer power is on Doing so may cause damage to the printer and the memory card 2 Remove the two screws and then remove the main PWB Figure 1 2 7 3 Insert the memory card into the memory card slot Push it in all the way 4 Refit the main PWB Figure 1 2 8 Main PWB Screw Screw Memory card socket Main PWB Memory card ...

Page 34: ...d disk unit while printer power is on Doing so may cause damage to the printer and the hard disk 2 Remove two screws and then remove the option interface slot cover 3 Insert the hard disk into the option interface slot Push it in all the way 4 Secure the hard disk by using two screws Figure 1 2 9 Hard disk Option interface slot Option interface slot cover Screw Screw ...

Page 35: ...2HL 2HM 2HN 1 2 8 This page is intentionally left blank ...

Page 36: ... To print a network status page To print a test page Write Data To write data into a USB memory To reset the counter after replacing the maintenance kit To perform developing unit refreshing To perform LSU dust shield glass and main charger cleaning To perform drum surface refreshing Maintenance To enter the initial value 6 digit data after replacing the developing unit DEV SET 1 Press the MENU ke...

Page 37: ...ge Firmware Version 2HN_3000 000 040 1 Memory Status Standard Size Option Slot Total Size Controller Information 2009 01 27 XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXXXXXXXXXX 500 0 kB 500 0 kB 1000 0 kB Time Local Time Zone Time Server 01 00 Amsterdam 10 183 53 13 FRPO Status Default Pattern Switch Default Font Name B8 V3 00 Courier e MPS error control Y6 0 Service Status Page Printer Digital Do...

Page 38: ... purpose Multi purpose feeder Not Installed Absence Presence or absence of the paper feeder 4 Installed Paper feeder Normal Installed Multi purpose Multi purpose feeder Not Installed Absence Presence or absence of the optional memory card Installed Presence Not Installed Absence Presence or absence of the optional hard disk unit Installed Presence Not Installed Absence Black toner coverage Number ...

Page 39: ...0000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 12345678 11223344 00001234abcd567800001234abcd5678 01234567890123456789012345678901...

Page 40: ...ation Left offset for each paper source MP tray Paper feeder 1 Paper feeder 2 Paper feeder 3 Duplex Page rotation L value settings Top margin integer Top margin decimal place Left margin integer Left margin decimal place Paper length integer Paper length decimal place Paper width integer Paper width decimal place Life counter The first line Machine MP tray Printer s cassette Paper feeder 1 Paper f...

Page 41: ...avy 1 5 Heavy 2 6 Heavy 3 7 Extra Heavy Fuser settings 0 High 1 Middle 2 Low 3 Vellum Duplex settings 0 Disable 1 Enable SPD information Calibration information Calibration information Calibration information Calibration information Calibration information Calibration information Calibration information Calibration information Calibration information Calibration information RFID information RFID r...

Page 42: ...ptional table version Optional message version WEB option version Color table version Developing unit serial number Black Cyan Magenta Yellow Drum unit ID Black Cyan Magenta Yellow Drum unit serial number Black Cyan Magenta Yellow NOTE Code conversion A B C D E F G H I J 0 1 2 3 4 5 6 7 8 9 ...

Page 43: ...d drum units of four colors Procedure 1 Enter the service mode Print 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 1 Since focusing in yellow is hardly readable yellow is mixed with cyan for more readability resulting in green 2 Each portion of colors has three different magnitude of halftones bands If focus is exc...

Page 44: ...er roller Paper feed roller assembly Retard roller assembly Ozone filter Purpose To reset the life counter for the drum units developing units intermediate transfer unit and fuser unit included in maintenance kit Procedure for replacing the maintenance kit Drum unit 4 See page 1 5 15 Developing unit M C Y and K See page 1 5 13 Fuser unit See page 1 5 26 Intermediate transfer unit See page 1 5 17 P...

Page 45: ... value 6 digit data with cursor keys 6 digit data is assigned on a label attached to the package or developing unit 4 Press the OK key OK 128F1E will be displayed 5 Press the OK key DEV SET will be displayed The initial value 6 digit data is set Completion Service items Description DEV SET DEV SET 000000 128F1E DV560Y 128F1E DV560Y 128F1EDV560M Example 6 digit data 128F1E 0 Magenta 1 Cyan 2 Yellow...

Page 46: ... Image data LSU dust shield glass and main charger cleaning Description The LSU cleaning motor drives the cleaning pad which in turn wipes clean the LSU dust shield glass The main charger cleaning motor drives the cleaning pad which in turn wipes clean the main charger wire and the main charger grid Purpose To perform cleaning when the printed image is bad and stripes are seen in the vertical dire...

Page 47: ...he drum unit scrapes toner off the drum surface to clean it Purpose To clean the drum surface when image failure occurs due to the drum This mode is effective when dew condensation on the drum occurs Method 1 Enter the service mode Drum 2 Press the OK key Drum will be displayed 3 Press the OK key Drum surface refreshing will start and finish after approximately 2 minutes Completion Service items D...

Page 48: ... replacements Procedure 1 Connect the USB or network cable between printer and PC network 2 Connect the power cord Figure 1 3 5 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 c...

Page 49: ...T02 T03 T04 T05 10 20 30 40 50 999 Counter Log Event Descriptions 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 10 01 88 01 01 8 7 6 5 4 3 2 1 Count 1111111 999999 888888 777777 666666 555555 444444 1 Service Call Log Ser...

Page 50: ...er does not arrive at the paper feeder 1 s PF paper feed sensor 2 Paper feeder 1 30 Paper does not arrive at the paper feeder 1 s PF paper feed sensor 3 Paper feeder 2 30 Paper does not arrive at the paper feeder 1 s PF paper feed sensor 3 Paper feeder 3 31 Paper does not pass the paper feeder 1 s PF paper sensor 2 32 Paper remains at the paper feeder 1 s PF paper feed sensor when power is turned ...

Page 51: ...ration sensor Paper exit sensor Duplex conveying sensor Paper full sensor PF paper feed sensor 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model Sensors MP tray Cassette 1 printer Paper feeder 1 Paper feeder 2 Paper feeder 3 Printer inside Paper exit section Duplex section Paper jam location ...

Page 52: ...28 16K R A8 16K E 32 Statement R B2 Statement E 33 Folio 34 Western type 2 35 Western type 4 d 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...

Page 53: ...wn toner detection If the occurrence of the previous unknown toner detection is less than 5 all of the unknown toner detection 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 00 Cyan 00 Magenta 00 Yellow Counter Log Comprised of three log co...

Page 54: ...as occurred is also indicated The printer auto matically goes off line when this message is displayed Remove jammed paper After removing jammed paper the printer will re start printing Figure 1 4 1 2 Paper misfeed detection condition Figure 1 4 2 Paper jam Printer Paper jam location Paper jam message Registration sensor Paper exit sensor Duplex conveying sensor Paper full sensor PF paper feed sens...

Page 55: ...isplay an error message on the operation 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 Error code Error code Error code Total number of pages Call service 6000 012345 Error power off F030 Call service F000 ...

Page 56: ...F main PWB YC3 YC5 and paper feeder interface connec tor or improper connector inser tion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Refer to the service manual for the paper feeder Defective PF main PWB Replace the PF main PWB Refer to the ser vice manual for the paper feeder Defective harness between engine PWB YC33 and pa...

Page 57: ...nt detection signal is detected continuously for 50 times 5 s at 100 ms intervals After the PF lift motor is driven the ON status of PF lift limit sensor cannot be detected for 8 seconds The cassette installed confirmation mes sage is displayed on the printer opera tion panel and even if the cassette is opened and closed the cassette installed confirmation message is dis played 5 times successivel...

Page 58: ... the paper feeder Defective engine PWB Replace the engine PWB See page 1 5 30 1510 1530 1550 PF warm air heater side blower high temperature error Option paper feeder A temperature higher than 85 C 185 F is detected Multi purpose feeder only 1510 Paper feeder 1 1530 Paper feeder 2 1550 Paper feeder 3 The inlet of side blower assembly is blocked by paper pieces or the like Check visually and remove...

Page 59: ...ctive harness between PF ther mistor 2 and PF main PWB YC12 or improper con nector insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Refer to the service manual for the paper feeder PF thermistor 2 installed incor rectly Check the installation of the PF thermistor 2 and remedy if necessary Refer to the ser vice manual for...

Page 60: ... harness between PF ther mistor 2 and PF main PWB YC12 or improper con nector insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Refer to the service manual for the paper feeder PF thermistor 1 installed incor rectly Check the installation of the PF thermistor 1 and remedy if necessary Refer to the ser vice manual for the ...

Page 61: ...nnec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective drive transmission sys tem of the main charger cleaning motor Check if the rollers and gears rotate smoothly If not grease the bushings and gears Check for broken gears and replace if any Defective main charger cleaning motor Replace the main charger cle...

Page 62: ...e developing motor K turns on Defective harness between develop ing motor K and engine PWB YC26 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Refer to the service manual for the paper feeder Defective drive transmission system of the developing motor K Check if the gears rotate smoothly If not g...

Page 63: ...ive engine PWB Replace the engine PWB See page 1 5 30 4202 Laser output error Cyan The pin photo signal PDN is not output from PD PWB C for one second while laser is emitted Defective harness between APC PWB C and engine PWB YC30 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective APC PWB C ...

Page 64: ...er vals Defective harness between LSU cleaning motor and engine PWB YC37 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective drive transmission sys tem of the LSU cleaning motor Check if the rollers and gears rotate smoothly If not grease the bushings and gears Check for broken gears and rep...

Page 65: ...connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective harness between drum relay PWB YC1 and engine PWB YC34 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective eraser lamp C Replace the drum unit C See page 1 5 15 Defective engine ...

Page 66: ...y for 40 seconds in warming up The detected temperature of fuser ther mistor does not reach the specified tem perature ready indication temperature after fuser heater lamp has been turned on continuously for 90 seconds in warm ing up The detected temperature of fuser ther mistor 2 does not rise 1 C 1 8 F after fuser heater lamp has been turned on continuously for 10 seconds during print ing Defect...

Page 67: ... connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Broken fuser ther mistor wire Replace the fuser unit See page 1 5 26 Fuser thermistor installed incor rectly Replace the fuser unit See page 1 5 26 Fuser thermal cut out triggered Replace the fuser unit See page 1 5 26 Fuser heater lamp installed incor rectly R...

Page 68: ... insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective drive transmission system of the toner motor C Check if the gears rotate smoothly If not grease the bushings and gears Check for broken gears and replace if any Defective toner motor C Replace the toner motor C Defective engine PWB Replace the engine PWB See pag...

Page 69: ...drum relay PWB and reinstall them if necessary See page 1 5 13 Defective harness between drum relay PWB YC1 and engine PWB YC34 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective toner sensor K Replace the developing unit K See page 1 5 13 Defective engine PWB Replace the engine PWB See pag...

Page 70: ...ll them if necessary See page 1 5 13 Defective harness between drum relay PWB YC1 and engine PWB YC34 or improper connec tor insertion Reinsert the connector Also check for conti nuity within the connector harness If none remedy or replace the harness Defective toner sensor Y Replace the developing unit Y See page 1 5 13 Defective engine PWB Replace the engine PWB See page 1 5 30 7411 Drum unit K ...

Page 71: ... C See page 1 5 15 Defective engine PWB Replace the engine PWB See page 1 5 30 7413 Drum unit M non installing error The EEPROM of drum PWB M does not communicate normally Incompatible drum unit M is installed Faulty connection of the connector between the drum PWB M and drum relay PWB Check the installation of the drum unit M and drum relay PWB and reinstall them if neces sary See page 1 5 15 Def...

Page 72: ...machine operates properly by reverting the engine controller and the drum unit to the old ones To replace the engine PWB and the drum unit at the same time turn on the printer after replacing either one Check that the printer operates prop erly and then turn off the printer Replace the other and turn on the printer to check that the printer operates properly Be sure to replace one by one F0 F000 M...

Page 73: ...If the error is not resolved replace main PWB See page 1 5 29 Defective engine PWB Replace engine PWB See page 1 5 30 F050 Engine PWB ROM checksum error Some error may have occurred when downloading the firmware of the engine PWB Download the firmware of the engine PWB again using the memory card See page 1 6 4 Defective engine PWB Turn the power switch off on to restart the printer If the error i...

Page 74: ...red 7 White streaks are printed vertically 8 Black streaks are printed vertically 9 Streaks are printed horizontally 10 Spots are printed See page 1 4 24 See page 1 4 25 See page 1 4 25 See page 1 4 25 See page 1 4 25 11 The leading edge of image begins to print too early or too late 12 Paper is wrinkled 13 Offset occurs 14 Part of image is missing 15 Fusing is loose See page 1 4 26 See page 1 4 2...

Page 75: ... MC See page 1 5 38 Defective engine PWB Replace the engine PWB See page 1 5 30 No develop ing bias output Defective harness between high voltage PWB and engine PWB YC16 or improper con nector insertion Reinsert the connector Also check for continuity within the connector harness If none remedy or replace the harness Defective high voltage PWB Replace the high voltage PWB See page 1 5 35 Defective...

Page 76: ...or all colors Defective laser scanner unit Replace the laser scanner unit YK and laser scanner unit MC See page 1 5 38 Print example Causes Check procedures corrective measures Defective main charger unit which corresponds to the color causing the problem Check if the main charger unit is properly seated If necessary reseat it properly Disconnected main charger wire Replace the main charger unit S...

Page 77: ...e requesting toner replenish ment replace the container Insufficient agitation of toner con tainer Shake the toner container vertically approximately 10 times Paper damp Check the paper storage conditions replace the paper Print example Causes Check procedures corrective measures Defective color calibration Perform the color calibration Refer to operation guide Defec tive develop ing bias output D...

Page 78: ...ed or worn cleaning blade in the drum unit Replace the drum unit See page 1 5 15 Worn primary transfer belt Replace the intermediate transfer unit See page 1 5 17 Dirty main charger wire Perform the main charger cleaning See page 1 3 11 Print example Causes Check procedures corrective measures Flawed drum Replace the drum unit See page 1 5 15 Dirty developing section Clean any part contaminated wi...

Page 79: ...lade in the drum unit Replace the drum unit Defective intermediate transfer belt cleaning Replace the intermediate transfer unit See page 1 5 17 Defective fuser unit Replace the fuser unit See page 1 5 26 Wrong types of paper Check if the paper meets specifications Replace paper Print example Causes Check procedures corrective measures Paper damp Check the paper storage conditions replace the pape...

Page 80: ...r Flawed heat roller or press roller Replace the heat roller and press roller See page 1 5 26 Print example Causes Check procedures corrective measures Defective calibration Perform the color calibration Refer to operation guide Slip the mirror position of laser scan ner unit Perform the color registration When the problem is not cleared perform the manual color registration adjustment Refer to op...

Page 81: ...er tion Reinsert the connector Also check for continuity within the con nector harness If none remedy or replace the harness Power source fan motor Engine PWB YC8 Ozone fan motor Engine PWB YC11 Developing fan motor 1 Engine PWB YC10 Developing fan motor 2 Engine PWB YC41 Fuser fan motor 1 Paper exit PWB YC2 Fuser fan motor 2 Engine PWB YC44 Defective engine PWB Replace the engine PWB See page 1 5...

Page 82: ... the engine PWB See page 1 5 30 Broken paper sensor 1 2 actuator Check the bending of the actuator lever of the paper sensor 1 2 if there is trouble remedy or replace Defective engine PWB Replace the engine PWB See page 1 5 30 10 The message requesting paper to be loaded is shown when paper is present in the MP tray Defective harness or improper connector inser tion Reinsert the connector Also che...

Page 83: ...Defective interlock switch Replace the interlock switch Defective engine PWB Replace the engine PWB See page 1 5 30 15 The message requesting left cover to be closed is dis played when the left cover is closed Defective harness or improper connector inser tion Reinsert the connector Also check for continuity within the con nector harness If none remedy or replace the harness Left cover switch Engi...

Page 84: ...sually and correct or replace if necessary Deformed MP tray slider Check visually and replace any deformed slider 4 Multiple sheets of paper are fed at one time Check if the paper is curled Replace the paper Paper is not placed correctly in the cassette Set the paper correctly Check if the retard roller is worn Replace the retard roller pulley if it is worn Check if the separator pad or MPF separa...

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Page 86: ...n removing the hook of the connector be sure to release the hook Take care 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 ...

Page 87: ...lows 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 B...

Page 88: ...uter covers 1 Detaching and refitting the left rear cover left upper cover and left front cover Procedure 1 Open the left cover 2 Remove the waste toner box 3 Remove two screws Figure 1 5 3 Left cover Waste toner box Screw Screw ...

Page 89: ...top cover 5 Release the five hooks and then remove the left rear cover Figure 1 5 4 Hooks Hooks Left rear cover Left rear cover Left rear cover Top cover 21 23 ppm 250 sheet model 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model ...

Page 90: ...crew and then remove the left upper cover 8 Slide the left front cover upward and then remove it Figure 1 5 5 Screw Left front cover Left front cover Front cover Left upper cover 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model ...

Page 91: ...dure 1 Open the top cover 2 Open the right cover 3 Remove the two screws 4 Release the five hooks and then remove the right rear cover Figure 1 5 6 Screw Screw Right cover Hooks Hooks Right rear cover Right rear cover Right rear cover 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model ...

Page 92: ... screws and then remove the right upper cover 7 Slide the right front cover and then remove it Figure 1 5 7 Right front cover Right front cover Front cover Right upper cover Screws 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model ...

Page 93: ...ction 1 Detaching and refitting the paper feed roller assembly paper feed roller and pickup roller Procedure 1 Remove the cassette Figure 1 5 8 Cassette Cassette 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model ...

Page 94: ...per feed roller assembly Figure 1 5 9 4 Check or replace the paper feed roller assembly and refit all the removed parts Figure 1 5 10 Paper feed roller assembly Lever B Lever A Feed roller pin Paper feed roller assembly Paper feed roller assembly Spring 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model ...

Page 95: ...cks 21 23 ppm 500 sheet model and 26 28 ppm 500 sheet model only 3 Release the two hooks and then remove the retard guide retard roller assembly Figure 1 5 11 Retard guide Retard guide Cassette Cassette Cassette Cassette Hook Hook Hook Hook Hook Hook Hook Bottom plate 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model Hook ...

Page 96: ...2HL 2HM 2HN 1 5 11 4 Remove the retard roller assembly 5 Check or replace the retard roller assembly and refit all the removed parts Figure 1 5 12 Retard roller assembly Retard guide ...

Page 97: ...edure 1 Open the front cover 2 While releasing the hook and the slide the MPF shaft 3 Remove the MP paper feed roller 4 Check or replace the MP paper feed roller and refit all the removed parts Figure 1 5 13 Front cover Hook MP paper feed roller MPF shaft MP paper feed roller ...

Page 98: ...rocedure 1 Remove the intermediate transfer unit See page 1 5 17 2 Remove the drum unit M C Y K See page 1 5 15 3 Pinch the lever of developing unit 4 Remove the developing unit M C Y K Figure 1 5 14 Lever Developing unit K Developing unit M Developing unit Y Developing unit C Developing unit ...

Page 99: ...alling the new developing unit When reinstalling the developing unit press it down until the lever of developing unit is engaged with the notch If it is difficult to engage the lever press the unit down while rotating the gear to engage it Figure 1 5 15 Lever Lever Gear Notch Developing unit New developing unit Cap Notch ...

Page 100: ...efitting the drum unit Procedure 1 Remove the intermediate transfer unit See page 1 5 17 2 Remove the drum unit M C Y K 3 Check or replace the drum unit and refit all the removed parts Figure 1 5 16 Drum unit K Drum unit M Drum unit Drum unit Y Drum unit C ...

Page 101: ...rger unit Procedure 1 Open the left cover 2 Remove the main charger unit M C Y K 3 Check or replace the main charger unit and refit all the removed parts Figure 1 5 17 Left cover Main charger unit K Main charger unit Y Main charger unit C Main charger unit M ...

Page 102: ...cedure 1 Open the top cover 2 Remove the all toner containers M C Y K Figure 1 5 18 Top cover Toner container K Toner container K Toner container Y Toner container Y Toner container C Toner container C Toner container M Toner container M 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model 21 23 ppm 250 sheet model ...

Page 103: ... 18 3 Remove the all container guides M C Y K Figure 1 5 19 4 Remove the two screws 5 Open the RFID holder Figure 1 5 20 Container guide K Container guide Y Container guide C Container guide M RFID holder Screw Screw ...

Page 104: ...termediate transfer unit 7 Check or replace the intermediate transfer unit and refit all the removed parts Figure 1 5 21 Guide Guide Projection Projection Intermediate transfer unit Intermediate transfer unit Intermediate transfer unit ...

Page 105: ... front cover 2 Open the duplex unit B 3 Release the two hooks and then remove the transfer roller unit 4 Check or replace the transfer roller unit and refit all the removed parts Figure 1 5 22 Hook Transfer roller unit Transfer roller unit Transfer roller unit Front cover Duplex unit B Hook ...

Page 106: ...page 1 5 3 2 Remove the power source PWB See page 1 5 27 3 While releasing the hook and then pull the MCH cleaning shaft Figure 1 5 23 4 Open the front cover 5 Remove the screw and then remove the front cover right stopper Figure 1 5 24 MCH cleaning shaft Hook Screw Front cover right stopper Front cover ...

Page 107: ...N 1 5 22 6 Remove the six screws and then remove the feed drive unit Figure 1 5 25 7 Remove the four connectors Figure 1 5 26 Feed drive unit Screw Screw Screw Screw Screw Screw YC4 YC39 YC26 YW YC40 Y Connectors ...

Page 108: ...then remove the two grounding terminals Figure 1 5 27 10 Remove the axis of the front cover left stop per from the hole 11 Remove the front cover Figure 1 5 28 Screw Grounding terminals FFC Axis front cover left stopper Front cover left stopper Front cover Hole ...

Page 109: ...M 2HN 1 5 24 12 Remove the two screws and then remove the MP paper feed lower unit Figure 1 5 29 13 Remove the three connectors Figure 1 5 30 Screw Screw MP paper feed lower unit Connector Connector Connector ...

Page 110: ...2HL 2HM 2HN 1 5 25 14 Open the duplex unit B 15 Remove the duplex unit B 16 Check or replace the duplex unit B and refit all the removed parts Figure 1 5 31 Duplex unit B ...

Page 111: ...ve the outer covers See page 1 5 3 2 Remove three connectors Figure 1 5 32 3 Remove two screws 4 Unhook the hook and then remove the fuser unit 5 Check or replace the fuser unit and refit all the removed parts Figure 1 5 33 Connector Connector Connector Screw Screw Boss Fuser unit Fuser unit Hook ...

Page 112: ... source PWB Procedure 1 Remove the right rear cover See page 1 5 6 2 Remove the three screws and then remove the power source shield Figure 1 5 34 3 Remove the connector 4 Remove the two screws Figure 1 5 35 Power source shield Screw Screw Screw Screw Screw Connector ...

Page 113: ...L 2HM 2HN 1 5 28 5 Remove the two connectors and then remove the power source PWB 6 Check or replace the power source PWB and refit all the removed parts Figure 1 5 36 Connector Connector Power source PWB ...

Page 114: ...HM 2HN 1 5 29 2 Detaching and refitting the main PWB Procedure 1 Remove the two screws 2 Remove the main PWB 3 Check or replace the main PWB and refit all the removed parts Figure 1 5 37 Main PWB Screw Screw ...

Page 115: ...engine PWB Procedure 1 Remove the duplex unit B See page 1 5 21 2 Remove the connector Figure 1 5 38 3 Remove the seven screws and then remove the feed housing Figure 1 5 39 Connector Feed housing Feed housing Screw Screw Screw Screw Screw Screw Screw ...

Page 116: ...ve the developing fan motor 1 6 Remove the two connectors B 7 Remove the FFC Figure 1 5 40 8 Remove the three FFCs 9 Remove the two connectors Figure 1 5 41 Developing fan motor 1 Connector B Connector B Connector A FFC FFC FFC Connector FFC Connector ...

Page 117: ...and then remove the lever link Figure 1 5 42 11 Remove the twenty connectors Figure 1 5 43 Latch Lever link Lever link YC39 YC3 YC28 YC15 YC26 YW YC33 YC40 YC17 BK YC44 YC25 YC22 YC23 YC38 YC37 YC36 YC34 YC11 YC24 YC18 YC27 RD BK YW GY BE BE Connectors ...

Page 118: ...2HL 2HM 2HN 1 5 33 12 Remove the three screws and then remove the engine PWB assembly Figure 1 5 44 Engine PWB assembly Screw Screw Screw ...

Page 119: ...ard assembly Insert the engine PWB assembly in the printer so that both the engine PWB and the harness bracket are flush at each end Do not insert the engine PWB assembly the way beyond the above otherwise the engine PWB plate will be deformed causing malfunctioning of the ID sensor cleaning system Figure 1 5 45 Printer Side of Harness bracket Insert position Engine PWB Engine PWB Engine PWB Harne...

Page 120: ... See page 1 5 13 3 Remove the engine PWB See page 1 5 30 4 Remove the screw and then remove the HV terminal assembly K Figure 1 5 46 5 Remove the screw and then remove the inner cover 6 Remove the three HV bracket C assem blies Figure 1 5 47 Screw HV terminal assembly K Screw Inner cover HV bracket C assembly HV bracket C assembly HV bracket C assembly ...

Page 121: ... 7 Remove six terminals 8 Remove the TC high voltage bracket 9 Remove the two screws Figure 1 5 48 10 Remove the screw Figure 1 5 49 Screw Screw TC high voltage bracket Terminal Terminal Terminal Terminal Terminal Screw ...

Page 122: ... PWB assembly Figure 1 5 50 12 Remove five screws and then remove the high voltage PWB 13 Check or replace the high voltage PWB and refit all the removed parts Figure 1 5 51 High voltage PWB assembly Screw Screw Screw Screw Screw High voltage PWB ...

Page 123: ...ove the all drum units See page 1 5 15 2 Remove the all developing units See page 1 5 13 3 Remove the two connectors 4 Remove the wires form the three clamps Figure 1 5 52 5 Draw the two connectors into the printer inside Figure 1 5 53 Connector Clamp Wire Clamp Connector Clamp Connector Connector ...

Page 124: ...rews and then remove the laser scanner units MC YK 7 Check or replace the laser scanner units and refit all the removed parts Figure 1 5 54 Screw Laser scanner unit Screw Screw Laser scanner unit MC Screws Screws Laser scanner unit YK Screw Screw ...

Page 125: ... 5 40 2 Detaching and refitting the ozone filter Procedure 1 Open the right cover 2 Remove the ozone filter 3 Check or replace the ozone filter and refit all the removed parts Figure 1 5 55 Right cover Ozone filter ...

Page 126: ...tor 1 developing fan motor 2 fuser fan motor 1 or ozone fan motor be careful of the airflow direction intake or exhaust Figure 1 5 56 Developing fan motor 1 Rating label Inside Fuser fan motor 1 Rating label Inside Intake Exhaust Intake Intake Developing fan motor 2 Rating label Inside Ozone fan motor Rating label Outside ...

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Page 128: ...ory 30 System Main 31 System BROM Extention Extention Product code 2HN 26 28 ppm 500 sheet model 2HM 21 23 ppm 500 sheet model 2HL 21 23 ppm 250 sheet model Product code 2HN 26 28 ppm 500 sheet model 2HM 21 23 ppm 500 sheet model 2HL 21 23 ppm 250 sheet model Pause underscore Software ID Build number Update history Classification Normally 0 Supplement Normally 00 Firmware category 10 Engine Engine...

Page 129: ...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 memory slot 2 1 supervisor mode USB d...

Page 130: ...n printer power off 11 Remove the USB memory from USB mem ory slot 12 Turn printer power on 13 Print the status page to check that the firm ware version has been updated See page P 1 3 2 Figure 1 6 4 USB memory USB memory slot ...

Page 131: ...sert the memory card into the memory card socket 4 Re fit the main PWB 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 Main PWB Main PWB Screw Screw Memory card Memory card socket Message display Operation panel key Press MENU key Press arro...

Page 132: ...t Figure 1 6 7 10 Insert the memory card to the PC s slot or to the adaptor 11 Copy the firmware file to download to the root directory of the memory card 12 Remove the memory card from the PC s slot or the adaptor Figure 1 6 8 Main PWB Main PWB Screw Screw Memory card Memory card socket To PC Memory card Adapter Memory card reader ...

Page 133: ...y 2 is displayed during downloading 18 When message display 3 is displayed to indicate downloading is finished Figure 1 6 10 Main PWB Main PWB Screw Screw Memory card Memory card socket 2 1 supervisor mode USB data reading supervisor mode Message display 3 2HN_1000 000 024 E1F9 Supplement Normally 00 Classification Normally 0 Product code Checksum Update history Build number Firmware category 10 E...

Page 134: ...ove the main PWB 21 Remove the memory card from memory card socket 22 Refit the main PWB 23 Turn printer power on 24 Print the status page to check that the firm ware version has been updated See page P 1 3 2 Figure 1 6 11 Main PWB Main PWB Screw Screw Memory card Memory card socket ...

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Page 136: ...om the cassette is pulled out by rotation of the pickup roller and sent to the paper conveying section by rotation of the paper feed roller Also the retard roller prevents multiple feeding of paper Figure 2 1 1 Cassette paper feed section 1 11 7 6 8 4 5 2 3 13 9 10 12 21 23 ppm 500 sheet model 26 28 ppm 500 sheet model 11 7 6 4 5 9 10 21 23 ppm 250 sheet model 2 3 1 1 Pickup roller 2 Paper feed ro...

Page 137: ...ift motor FEMOTRDYN Paper feed motor Paper feed motor Paper feed motor SPEEDSEL FECLKCLK YC3 1 YC3 2 YC3 3 REMOTREN YC3 4 STFEAN STFEB YC4 1 YC4 2 YC4 3 STFEA STFEBN YC4 4 Lift limit sensor Paper sensor 1 Paper sensor 1 Paper sensor 2 Paper sensor 2 FEDCLDRN Engine PWB YC26 12 STFEAN STFEB YC4 1 YC4 2 YC4 3 STFEA STFEBN YC4 4 21 23 ppm 500 sheet model 26 28 ppm 500 sheet model 21 23 ppm 250 sheet ...

Page 138: ...diagram 4 5 8 10 9 11 2 3 7 6 1 1 MP paper feed roller 2 MPF separation pad 3 MPF separator 4 MPF bottom plate 5 MPF friction pad 6 MP tray sensor 7 Actuator MP tray sensor 8 MPF guide R L 9 MPF base 10 MPF upper tray 11 MPF cover MPSOLDRN MP paper feed solenoid Paper feed motor Paper feed motor Engine PWB YC40 2 FEMOTRDYN SPEEDSEL FECLKCLK YC3 1 YC3 2 YC3 3 REMOTREN YC3 4 STFEAN STFEB YC4 1 YC4 2...

Page 139: ...g Paper by feeding is conveyed by the middle roller to the position where the registration sensor is turned on and then sent to the transfer separation section by the front registration roller and rear registration roller Figure 2 1 5 Paper conveying section 1 3 4 2 5 6 1 Feed pulley 2 Middle roller 3 Registration sensor 4 Actuator registration sensor 5 Front registration roller 6 Rear registratio...

Page 140: ...Paper feed motor Engine PWB Registration clutch Registration sensor FEMOTRDYN SPEEDSEL FECLKCLK YC3 1 REGPAP YC7 3 YC3 2 YC3 3 REMOTREN YC3 4 STFEAN STFEB YC4 1 YC4 2 YC4 3 STFEA STFEBN YC4 4 MIDCLDRN Intermediate clutch YC3 7 21 23 ppm 250 sheet model 21 23 ppm 500 sheet model 26 28 ppm 500 sheet model ...

Page 141: ...eam After transfer is complete toner remaining on the drum surface is chipped off with the cleaning blade and is collected to the waste toner box with the drum screw Also elec tric charge remaining on the drum surface is eliminated by irradiating the eraser lamp for preparing for next charge of the main charger Figure 2 1 7 Drum section 1 3 2 6 5 4 1 Drum 2 Drum shaft 3 Main charger unit 4 Cleanin...

Page 142: ...TCBN EEDATA EECLK DA1 YC8 2 ERASECDR YC9 2 YC18 8 YC18 7 YC18 6 YC18 5 YC8 1 YC8 3 YC8 7 YC8 8 DA0 Drum unit Y Eraser lamp Y Drum motor Y EEPROM ERASEYDR STYA STYB STYAN STYBN EEDATA EECLK DA1 YC5 2 ERASEYDR YC6 2 YC18 12 YC18 11 YC18 10 YC18 9 YC5 1 YC5 3 YC5 7 YC5 8 DA0 Drum unit K Eraser lamp K Drum motor K EEPROM ERASEKDR STKA STKB STKAN STKBN EEDATA EECLK DA1 YC2 2 ERASEKDR YC3 2 YC18 16 YC18...

Page 143: ...he main charger shield and charges the drum for image forming Also the main charger unit is equipped with a main charger cleaning motor to conduct clean ing automatically Figure 2 1 9 Main charger unit 1 4 3 5 2 1 Main charger shield 2 Main charger wire 3 Main charger grid 4 Main charger cleaner unit 5 Main charger spiral ...

Page 144: ...charger output K Wire Grid Drum unit C Drum Zener PWB C Drum unit Y Drum Zener PWB Y Shield Main charger unit C Wire Grid Shield Main charger unit Y Wire Grid Shield Main charger unit K Wire Grid Shield Main charger unit M Drum unit K Drum Main charger cleaning motor Zener PWB K MMCNT YC16 17 MCCNT YC16 14 MYCNT YC16 11 MKCNT YC16 8 CN1 11 CN1 14 CN1 17 CN1 20 MCHMOTA YC36 1 MCHMOTB YC36 2 ...

Page 145: ...er 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 Also the LSU cleaning motor is activated to conduct automatically cleaning of the LSU dust shield glass Figure 2 1 11 Laser scanner unit 1 9 2 3 3 4 5 4 5 6 6 8 7 8 7 1 Polygon motor 2 Polygon mirror 3 F θ lens A 4 F θ lens B 5 Mirror A 6 Mirror B 7 M...

Page 146: ...er scanner unit Drum Drum 1 APC PWB Laser diode 2 Collimator lens 3 Cylindrical lens 4 Polygon motor mirror 5 F θ lens A 6 F θ lens B 7 Mirror A 8 Mirror B 9 Mirror C 10 PD mirror 11 PD mirror 12 SOS lens 13 PD PWB Pin photo diode sensor ...

Page 147: ...olygon motor YK LONBYN ENBYN VDOYP VDOYN YC1 2 YC1 3 YC1 4 YC1 5 POLCLK1 POLONN1 YC1 8 YC2 2 THERMY YC1 9 YC2 3 PDYN THERMY POLRDYN1 YC29 19 PDYN APC PWB K PD PWB K LONBKN ENBKN VDOKP VDOKN YC1 2 YC1 3 YC1 4 YC1 5 VDOMP VDOMN YC1 7 YC30 7 VREFM VDOCP VDOCN YC1 7 YC30 16 VREFY VDOYP VDOYN VDOKP VDOKN YC1 9 YC2 2 PDKN PDKN PDMN PDCN PDYN PDKN YC6 A20 YC6 A19 YC6 B20 YC6 B19 YC6 A18 YC6 A17 YC6 B18 Y...

Page 148: ...ews that agitate the toner Also the toner sensor checks whether or not toner remains in the devel oping unit Figure 2 1 14 Developing unit and toner container 2 1 7 4 3 6 5 2 1 7 4 3 6 5 21 23 ppm 500 sheet model 26 28 ppm 500 sheet model 21 23 ppm 250 sheet model 1 Sleeve roller 2 Magnet roller 3 Developing blade 4 Developing screw A 5 Developing screw B 6 Sleeve cover 7 Toner sensor ...

Page 149: ...PWB Y Sleeve roller Magnet roller Toner sensor Y Toner motor Y Developing unit K Developing PWB K Sleeve roller Magnet roller Toner sensor K Toner motor K TNSENC TNSENY TNSENK DLPTHERM YC34 2 YC34 4 YC34 6 YC34 13 YC34 14 YC1 2 YC13 2 YC10 2 YC7 2 YC4 2 YC4 4 YC1 4 YC1 6 YC1 13 YC1 14 TNSENM TNSENC TNSENY TNSENK DLPTHERM Developing motor MCY DLPMOTRDYN SPEEDSEL DLPMOTCLK DLPMOTREN TNMMDRN TNMCDRN ...

Page 150: ...er belt after secondary transfer and forwards it as waste toner to the waste toner box The transfer roller unit consists of the secondary transfer roller mounted to the paper conveying unit and the separation brush To the secondary transfer roller DC bias is applied from the high voltage PWB The toner image formed on the transfer belt is transferred to the paper by the potential difference and the...

Page 151: ...ry transfer roller K Transfer belt Cleaning roller T2RREMN Secondary transfer bias output Primary transfer bias output K Primary transfer bias output Y Primary transfer bias output C Primary transfer bias output M Cleaning bias output YC16 7 VOSL VOPL LEDREFL VOSR VOPR LEDREFR YC5 5 YC5 4 YC5 2 YC6 5 YC6 4 YC6 2 CN1 21 CLCNT YC16 20 CN1 8 T1MCNT YC16 21 CN1 7 T1CCNT YC16 22 CN1 6 T1YCNT YC16 23 CN...

Page 152: ...spring The surface temperature of heat roller is detected by the fuser thermistor and controlled by the engine PWB If the fuser section shows extremely high temperature the power line will be shut off and the fuser heater lamp is forced to turn off Figure 2 1 18 Fuser section 3 5 4 8 7 1 11 10 12 9 2 6 1 Upper fuser frame 2 Lower fuser frame 3 Heat roller 4 Press roller 5 Fuser heater lamp 6 Fuser...

Page 153: ...e switch Power source PWB Fuser heater lamp Fuser thermistor Fuser unit LIVE NEUTRAL YC102 3 YC102 1 Fuser thermal cutout FTHERM FTHERM HEATREM ZCROSS YC103 3 YC103 1 YC19 3 YC19 1 STFUA STFUB STFUAN STFUBN YC20 2 YC20 3 YC4 2 YC1 2 PDIRN PDIRN YC6 2 YC1 3 YC39 4 YC39 3 YC39 2 YC39 1 Fuser motor ...

Page 154: ...th is switched by the change guide activated by the duplex solenoid Figure 2 1 20 Paper exit feed shift section 13 12 8 14 3 2 5 1 4 9 11 7 6 10 1 Paper exit roller 2 Paper exit pulley 3 Paper exit sensor 4 Actuator paper exit sensor 5 Actuator paper exit sensor 6 Change guide 7 Paper exit upper guide 8 FD roller 9 Middle pulley 10 Switchback roller 11 Middle pulley 12 Paper full sensor 13 Actuato...

Page 155: ... section block diagram Engine PWB Paper exit PWB Paper exit sensor Paper full sensor EXITPAP STFUA STFUB STFUAN STFUBN YC20 4 YC1 4 FDFUL YC20 6 YC1 6 YC39 4 YC39 3 YC39 2 YC39 1 Fuser motor DUREVDRN DUREVDRN Duplex solenoid YC20 10 YC3 2 YC1 10 ...

Page 156: ...ction to the paper feed conveying section when duplex printing Figure 2 1 22 Duplex conveying section 5 7 8 6 9 11 10 3 4 2 1 1 Duplex roller 1 2 Paper exit pulley 3 Duplex roller 2 4 Duplex pulley 5 Duplex roller 3 6 Duplex pulley 7 Duplex feed roller 8 Duplex pulley 9 Duplex feed guide 10 Duplex conveying sensor 11 Actuator duplex conveying sensor ...

Page 157: ...conveying section block diagram DUREVDRN DUREVDRN Duplex solenoid Duplex motor Engnie PWB Paper exit PWB YC20 10 YC3 2 YC1 10 STDUAN STDUB YC17 1 YC17 2 Duplex clutch DUCLDRN YC3 9 YC17 3 STDUA STDUBN YC17 4 Duplex conveying sensor DUREGPAP YC21 3 ...

Page 158: ...B Controls the LCD display Consists the LCD display LED indicators and key switches 6 Paper exit PWB Interconnects the engine PWB and the electrical parts paper exit sec tion 7 Drum relay PWB Interconnects the engine PWB and the drum units developing units 8 APC PWB M Generates and controls the laser beam magenta 9 APC PWB C Generates and controls the laser beam cyan 10 APC PWB Y Generates and con...

Page 159: ...mponents on the drum unit K Drum indi vidual information in EEPROM storage 20 Zener PWB M Adjusts the drum surface potential Magenta 21 Zener PWB C Adjusts the drum surface potential Cyan 22 Zener PWB Y Adjusts the drum surface potential Yellow 23 Zener PWB K Adjusts the drum surface potential Black 24 Developing PWB M Relays wirings from electrical components on the developing unit M 25 Developin...

Page 160: ...sensor Detects the presence of paper on the MP tray 10 Duplex conveying sensor Detects paper jam in the duplex section 11 Paper exit sensor Detects paper jam in the fuser paper exit section 12 Paper full sensor Detects the paper full in the top tray 13 Toner sensor M Detects the toner density in the developing unit M 14 Toner sensor C Detects the toner density in the developing unit C 15 Toner sen...

Page 161: ...2HM 2HN 1 2 2 4 21 Front cover open close switch Detects open close front cover 22 Fuser thermistor Measures the heat roller temperature 23 Polygon motor thermistor Measures the polygon motor YK temperature ...

Page 162: ...h toner 12 Toner motor C Replenishes the developing unit C with toner 13 Toner motor Y Replenishes the developing unit Y with toner 14 Toner motor K Replenishes the developing unit K with toner 15 Fuser motor Drives fuser section and paper exit section 16 Duplex motor Drives duplex section 17 Main charger cleaning motor Drives main charger wire cleaning system 18 LSU cleaning motor Drives LSU dust...

Page 163: ...HL 2HM 2HN 2 2 6 21 Power source fan motor Cools the power source PWB 22 Fuser fan motor 1 Cools the fuser section 23 Fuser fan motor 2 Cools the fuser section 24 Ozone fan motor The exhaust gas of ozone ...

Page 164: ...te of the MP tray 7 Duplex solenoid Operates the change guide 8 ID solenoid Operates the ID sensors cleaning system 9 Eraser lamp M Eliminates the residual electrostatic charge on the drum Magenta 10 Eraser lamp C Eliminates the residual electrostatic charge on the drum Cyan 11 Eraser lamp Y Eliminates the residual electrostatic charge on the drum Yellow 12 Eraser lamp K Eliminates the residual el...

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Page 166: ...nected to the fuser heater lamp 220 240 0 V AC 2 N C Not used 3 LIVE O 120 V AC AC power output 220 240 V AC YC103 1 HEATREM I 24 V DC Fuser heater lamp On Off Connected to the engine PWB 2 N C Not used 3 ZCROSS O 0 3 3 V DC pulse Zero cross signal 4 SLEEPN I 0 24 V DC Sleep mode signal On Off 5 24V3 I 24 V DC 24 V DC power source 6 GND Ground 7 GND Ground 8 GND Ground 9 GND Ground 10 24V1 O 24 V ...

Page 167: ... 9 1 2 2 2 2 2 1 2 1 1 1 1 1 A20 B20 A1 B1 5 1 13 14 3 2 2 1 1 1 2 2 2 2 2 2 6 7 1 1 2 2 1 1 1 1 4 1 3 4 1 11 BK 13 RD BK YW GY BE BE 2 10 12 13 16 15 1 3 3 4 4 2 2 2 2 27 26 YC9 YC21 YC7 YC20 YC29 YC10 YC41 YC32 YC30 YC1 YC12 YC31 YC14 YC13 YC43 YC5 YC6 YC2 YC16 U4 YC4 YC42 YC39 YC3 YC28 YC15 YC26 YC33 YC40 YC17 YC44 YC25 YC22 YC23 YC38 YC37YC36 YC34 YC11 YC24 YC18 YC27 YC19 ...

Page 168: ...round 4 VOPL I Analog Left ID sensor detection signal 5 VOSL I Analog Left ID sensor detection signal YC6 1 5V1 O 5 V DC 5 V DC power source Connected to the right ID sensor 2 LEDREFR O Analog Right ID sensor control signal 3 GND Ground 4 VOPR I Analog Right ID sensor detection signal 5 VOSR I Analog Right ID sensor detection signal YC7 1 3 3V2 O 3 3 V DC 3 3 V DC power source Connected to the reg...

Page 169: ...ontrol voltage Yellow 13 BYMCNT O PWM Developing magnet bias control voltage Yellow 14 MCCNT O PWM Main charger high voltage control voltage Cyan 15 BCSCNT O PWM Developing sleeve bias control voltage Cyan 16 BCMCNT O PWM Developing magnet bias control voltage Cyan 17 MMCNT O PWM Main charger high voltage control voltage Magenta 18 BMSCNT O PWM Developing sleeve bias control voltage Magenta 19 BMM...

Page 170: ...cted to the power source PWB 2 N C Not used 3 ZCROSS I 0 3 3 V DC pulse Zero cross signal 4 SLEEPN O 0 24 V DC Sleep mode signal On Off 5 24V3 O 24 V DC 24 V DC power source 6 GND Ground 7 GND Ground 8 GND Ground 9 GND Ground 10 24V1 I 24 V DC 24 V DC power source 11 24V1 i 24 V DC 24 V DC power source 12 24V1 I 24 V DC 24 V DC power source 13 24V1 I 24 V DC 24 V DC power source YC20 1 3 3V2 O 3 3...

Page 171: ...oping motor K speed selection signal 6 DLPMOTKCLK O 0 3 3 V DC pulse Developing motor K clock signal 7 DLPMOTKREN O 0 3 3 V DC Developing motor K On Off 8 GND Ground 9 24V3 O 24 V DC 24 V DC power source 10 REGCLDRN O 0 24 V DC Registration clutch On Off 11 24V3 O 24 V DC 24 V DC power source 12 FEDCLDRN O 0 24 V DC Paper feed clutch On Off 13 24V3 O 24 V DC 24 V DC power source YC27 1 MOTREV O 0 ...

Page 172: ...0 3 3 V DC Polygon motor YK On Off 21 GND Ground 22 24V3 O 24 V DC 24 V DC power source YC30 1 3 3V1 O 3 3 V DC 3 3 V DC power source Connected to the APC PWB M APC PWB C and poly gon motor MC 2 LONBMN O 0 3 3 V DC APC PWB M sample hold signal 3 ENBMN O 0 3 3 V DC APC PWB M laser enable signal 4 VDOMP O LVDS APC PWB M video data signal 5 VDOMN O LVDS APC PWB M video data signal 6 GND Ground 7 VREF...

Page 173: ...N I LVDS APC PWB C video data signal B3 VDOCP I LVDS APC PWB K video data signal B4 VDOCN I LVDS APC PWB K video data signal B5 GND Ground B6 PDCN O 0 3 3 V DC pulse Horizontal synchronization signal B7 PDKN O 0 3 3 V DC pulse Horizontal synchronization signal B8 GND Ground B9 N C Not used B10 FPCLK I 0 3 3 V DC Operation panel PWB clock signal B11 FPRSTN I 0 3 3 V DC Operation panel reset signal ...

Page 174: ...10 3 3V1 O 3 3 V DC 3 3 V DC power source 11 ERASEKDR O 0 24 V DC Eraser lamp K On Off 12 3 3V2 O 3 3 V DC 3 3 V DC power source 13 TNSENK I Analog Toner sensor K detection voltage 14 DLPTHERM I Analog Developing thermistor detection voltage YC36 1 MCHMOTA O 24 0 V DC Main charger cleaning motor Fwd Stop Rev Connected to the main charger cleaning motor 2 MCHMOTB O 24 0 V DC Main charger cleaning m...

Page 175: ...an motor 2 Full speed Half speed Off YC43 1 24V3 O 24 V DC 24 V DC power source Connected to the ID solenoid 2 IDSOLDRN O 0 24 V DC ID solenoid On Off YC44 1 24V3 O 24 V DC 24 V DC power source Connected to the fuser fan motor 2 2 SUBFANDRN O 0 12 24 V DC Fuser fan motor 2 Full speed Half speed Off Connector Pin Signal I O Voltage Description ...

Page 176: ...2HN 2 3 11 2 3 3 Drum relay PWB Figure 2 3 3 Drum relay PWB silk screen diagram 1 YC13 4 1 1 3 YC11 YC12 7 2 8 1 YC10 4 1 1 3 YC8 YC9 7 2 8 1 YC7 YC1 4 2 1 14 13 1 1 3 YC5 YC6 7 2 8 1 YC4 4 1 1 3 YC2 YC3 7 2 8 ...

Page 177: ...O 0 3 3 V DC pulse EEPROM clock signal 4 GND Ground 5 3 3V1 O 3 3 V DC 3 3 V DC power source 6 N C Not used 7 DA1 O 0 3 3 V DC Data address signal 8 DA0 O 0 3 3 V DC Data address signal YC3 1 GND Ground Connected to the drum PWB K 2 ERASEKDR O 0 24 V DC Eraser lamp K On Off 3 N C Not used YC4 1 GND Ground Connected to the devel oping PWB K 2 TNSENK I Analog Toner sensor K detection voltage 3 3 3V2...

Page 178: ...ner sensor C detection voltage 3 3 3V2 O 3 3 V DC 3 3 V DC power source 4 N C Not used YC11 1 EEDATA I O 0 3 3 V DC pulse EEPROM data signal Connected to the drum PWB M 2 ERASEDR O 0 24 V DC Eraser lamp M On Off 3 EECLK O 0 3 3 V DC pulse EEPROM clock signal 4 GND Ground 5 3 3V1 O 3 3 V DC 3 3 V DC power source 6 N C Not used 7 DA1 O 0 3 3 V DC Data address signal 8 DA0 O 0 3 3 V DC Data address s...

Page 179: ... Paper full sensor On Off 7 FEEDOPN O 0 3 3 V DC Front cover open close switch On Off 8 FUFANDRN I 0 12 24 V DC Fuser fan motor 1 Full speed Half speed Off 9 24V1 I 24 V DC 24 V DC power source 10 DUREVDRN I 0 24 V DC Duplex solenoid On Off YC2 1 24V1 O 24 V DC 24 V DC power source Connected to the fuser fan motor 1 2 FUFANDRN O 0 12 24 V DC Fuser fan motor 1 Full speed Half speed Off YC3 1 24V1 O...

Page 180: ...istor detection voltage YC5 1 FEEDOPN I 0 3 3 V DC Front cover open close switch On Off Connected to the front cover open close switch 2 GND Ground YC6 1 GND Ground Connected to the enve lope switch 2 PDIRN I 0 3 3 V DC Envelope switch On Off 3 3 3V2 O 3 3 V DC 3 3 V DC power source Connector Pin Signal I O Voltage Description ...

Page 181: ...2HL 2HM 2HN 2 3 16 This page is intentionally left blank ...

Page 182: ...ft motor LMOTDRN GND 24V3 GND FEMOTREN FEMOTCLK SPEEDSEL FEMOTRDYN 1 2 3 4 5 6 7 1 2 1 2 1 2 1 2 1 2 1 2 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 REGPAP GND 3 3V2 Lift limit sensor LEDA LEDK PTRE PTRC 4 3 13 12 11 10 2 1 9 8 7 6 5 4 3 2 1 13 12 11 10 9 8 7 6 5 4 3 2 1 1 2 1 2 1 2 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 HEATREM NC ZCROSS SLEEPN 24V3 GND GND GN...

Page 183: ...ng unit M A20 B20 A19 B19 A18 B18 A17 B17 A16 B16 A15 B15 A14 B14 A13 B13 A12 B12 A11 B11 A10 B10 A9 B9 A8 B8 A7 B7 A6 B6 A5 B5 A4 B4 A3 B3 A2 B2 A1 B1 3 3V2 TNSEN1 GND TH_DLP 1 2 3 4 5 1 2 3 4 5 Eraser lamp K 4 3 2 1 4 3 2 1 1 2 3 4 1 2 3 4 3 3V2 RFCLK RFDATA GND Grid GND GND GND RESETN EECLK 5V1 EEDAT 5V1 VSYNC 5V1 SBSY EGIRN SCKN SDIR SI SO 3 3V1 3 3V1 FPRSTN 3 3V1 FPCLK FPDIR N C FPDATA GND GN...

Page 184: ...rrence of defect 50 mm 1 15 16 Front registration roller 50 mm 1 15 16 Developing roller 59 mm 2 5 16 Transfer roller 79 mm 3 1 8 Press roller 82 mm 3 1 4 Heat roller 1 98 mm 3 7 8 Drum 98 mm 3 7 8 Heat roller 2 2 21 23 ppm 250 sheet model 1 26 28 ppm 500 sheet model 21 23 ppm 500 sheet model ...

Page 185: ...0 2HN93070 Intermediate transfer unit TR 560 302HN93060 2HN93060 MP paper feed roller ROLLER M P ASSY 43487B0027 A4 5AAVR0LL 051 2CL16130 Retard roller RETARD ROLLER ASSY 302F909170 2F909170 Maintenance kit MK 560 MK 560 MAINTENANCE KIT 1702HN3EU0 072HN3EU 15 Paper feed roller assembly HOLDER FEED ASSY SP 302HN94201 2HN94201 Developing unit Y DV 560 Y 302HN93020 2HN93020 Developing unit K DV 560 K...

Page 186: ...rmediate transfer unit TR 560 302HN93060 2HN93060 MP paper feed roller ROLLER M P ASSY 43487B0027 A4 5AAVR0LL 051 2CL16130 Retard roller RETARD ROLLER ASSY 302F909170 2F909170 Maintenance kit MK 560 MK 560 MAINTENANCE KIT 1702HN2US0 072HN2US 15 Paper feed roller assembly HOLDER FEED ASSY SP 302HN94201 2HN94201 Developing unit Y DV 560 US Y 302HN93260 2HN93260 Developing unit K DV 560 US K 302HN932...

Page 187: ...2HL 2HM 2HN 2 4 6 This page is intentionally left blank ...

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Summary of Contents for CLP 3521

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Utax CLP 3521, Service Manual, Page: 144 / 187

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Summary of Contents for CLP 3521

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