Canon Pixma MX860, Pixma MX868 Service Manual

MX860 / MX868 Service Manual

Revision 0

COPYRIGHTc2009CANONINC.CANONMX860012009XX0.00-0



Scope

This manual has been issued by Canon Inc., to provide the service technicians of this product with the information necessary for qualified persons to learn technical theory, installation, maintenance, and repair of products. The manual covers information applicable in all regions where the product is sold. For this reason, it may contain information that is not applicable to your region.

This manual does not provide sufficient information for disassembly and reassembly procedures. Refer to the graphics in the separate Parts Catalog.

Revision

This manual could include technical inaccuracies or typographical errors due to improvements or changes made to the product. When changes are made to the contents of the manual, Canon will release technical information when necessary. When substantial changes are made to the contents of the manual, Canon will issue a revised edition.

The following do not apply if they do not conform to the laws and regulations of the region where the manual or product is used:

Trademarks

Product and brand names appearing in this manual are registered trademarks or trademarks of the respective holders.

All rights reserved. No parts of this manual may be reproduced in any form or by any means or translated into another language without the written permission of Canon Inc., except in the case of internal business use.

MX860 / MX868

TABLE OF CONTENTS

1. MAINTENANCE

1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement

Consumables by Service Engineer 1-2. Customer Maintenance 1-3. Special Tools 1-4. Sensors 1-5. Serial Number Location

2. LIST OF ERROR DISPLAY / INDICATION

2-1. Operator Call Errors 2-2. Service Call Errors 2-3. FAX Errors 2-4. Troubleshooting by Symptom

3. REPAIR

3-1. Major Replacement Parts 3-2. Part Replacement Procedures

(1) External housing, scanner unit, and document cover removal

(2) Operation panel and document feed unit removal

(3) Printer unit removal, and ink absorber replacement

(4) Carriage unlocking

(5) ASF unit removal

(6) Carriage unit removal

(7) Spur unit and platen unit removal

(8) Purge drive system unit (right plate) and switch system unit (left plate) removal

4. ADJUSTMENT / SETTINGS

4-1. User Mode 4-2. Service Mode

(1) Service mode operation procedures

(2) Service Tool functions

(3) LF / Eject correction

(4) Button and LCD test

(5) Ink absorber counter setting 4-3. PTT Parameter Mode

4-4. Grease Application 4-5. Special Notes on Servicing

(1) Print head problem

(2) Paper feed motor adjustment

(3) Carriage unit replacement

(4) Document pressure sheet (sponge sheet) replacement

(5) Ink absorber counter setting

(6) Power supply unit and modular board replacement

(7) Rating label on the bottom case (for the models other than Japan)

(8) PTT label on the bottom case (for New Zealand only)

(9) NAL label on the bottom case (for China only) 4-6. Verification After Repair

(1) Standard inspection flow

(2) Service test print

(3) Ink absorber counter value print

5. MACHINE TRANSPORTATION

MX860 / MX868 TABLE OF CONTENTS

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1. MAINTENANCE

1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement

Consumables by Service Engineer

(1) Adjustment

Adjustment Timing Purpose Tool

EEPROM initialization

Destination settings (EEPROM settings)

Ink absorber counter resetting (EEPROM settings)

Ink absorber counter value setting (EEPROM settings)

Ink absorber replacement

- At logic board replacement To initialize settings

- At logic board replacement To set destination.

- At logic board replacement

- At ink absorber replacement

- At logic board replacement To set the ink amount data in

- When the ink absorber becomes full

To reset the ink absorber counter.

the ink absorber to the ink absorber counter.

To replace the ink absorber with a new one.

Service Tool Perform in the service

mode. Service Tool

Perform in the service mode.

Service Tool Perform in the service

mode.

Service Tool Perform in the service

mode.

Screwdriver, a pair of tweezers, etc.

Approx.

time

1 min.

15 min.

Paper feed motor position adjustment

Manual print head alignment

Grease application - At carriage unit replacement To maintain sliding properties

Ink system function check

LCD language settings

Platen glass protection sheet (document pressure sheet) position adjustment

LF / Eject - At logic board replacement To correct line feeding (LF

- At paper feed motor replacement

- At print head replacement

- At logic board replacement

- When print quality is not satisfying

- At logic board replacement

- At spur unit replacement

- At carriage unit replacement

- At logic board replacement To set the language to be

- At protection sheet replacement

- At document bottom cover replacement

- At scanner unit replacement

To adjust the belt tension. (Position the paper feed motor so that the belt is stretched tight.)

To secure the dot placement accuracy.

of the carriage rail. To maintain detection

functionality for presence of the ink tanks and each ink tank position.

displayed on the LCD.

To maintain scanning accuracy, hold the sheet with the long side down, then fit its upper left corner to the platen glass reference mark (back left).

None. 5 min.

None. Perform in the user mode.

FLOIL KG-107A 1 min.

Service Tool Perform in the service

mode.

None. Perform in the user mode.

None. 1 min.

Service Tool

10 min.

1 min.

5 min.

correction - At paper feed roller

2 / 64

replacement

- At logic board replacement

- At platen unit replacement

roller diameter). Perform in the service

mode.

To correct line feeding (eject roller diameter).

Service Tool Perform in the service

mode.

(LF correction and Eject correction is performed at the same time.)

Carriage rail position adjustment

LAN resetting - At logic board replacement

Wired / Wireless LAN setting information display

FAX user data settings

- At carriage unit replacement

- At carriage unit removal

- At WLAN board replacement

- At confirmation of the network setting

- At logic board replacement

- At modular board replacement

To set the carriage rail to the original position prior to removal or replacement of the carriage unit, put a mark on the main chassis before removal of the carriage unit.

To initialize the network setting.

To confirm the network setting.

To confirm the FAX user data settings.

None. 1 min.

None. Perform in the user mode.

- Machine buttons

- Computer (IJ Network Tool)

None. Perform in the user mode.

- Machine buttons

- Computer (IJ Network Tool)

None. Perform in the user mode.

1 min.

2 min.

N: New adjustment item *1: Install the Service Tool version 1.030 or later to a pre-registered computer.

- The screws securing the paper feed motor may be loosened only at replacement of the paper feed motor unit.

- For print head alignment, perform manual print head alignment using plain paper.

(2) Periodic maintenance

No periodic maintenance is necessary.

(3) Periodic replacement parts

There are no parts in this machine that require periodic replacement by a service engineer.

(4) Replacement consumables

There are no consumables that require replacement by a service engineer.

1-2. Customer Maintenance

3 / 64

Adjustment Timing Purpose Tool

Manual print head alignment

Print head cleaning When print quality is not satisfying. To improve nozzle

Print head deep cleaning

Ink tank replacement When an ink tank becomes empty. ("No

Paper feed roller cleaning

- At print head replacement

- When print quality is not satisfying (uneven printing, etc.)

When print quality is not satisfying, and not improved by print head cleaning.

ink error" displayed on the monitor or on the machine LCD, or short flashing of an ink tank LED)

- When paper does not feed properly.

- When the front side of the paper is smeared.

To ensure accurate dot placement.

conditions.

To improve nozzle conditions.

To replace the empty ink tank.

To clean the paper feed rollers of the selected paper source (rear tray or cassette).

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

- Machine buttons

- Computer (MP driver)

--- 1 min.

- Machine buttons

- Computer (MP driver)

Approx.

time

10 min.

1 min.

2 min.

Bottom plate cleaning When the back side of the paper is

smeared.

Scanning area cleaning

Exterior cleaning When necessary To clean the machine

LAN resetting When changing the network setting, etc. To return the LAN setting to

Wired / Wireless LAN setting information display

When the platen glass or document pressure sheet is dirty.

When changing the network setting, etc. To confirm the LAN setting

To clean the platen ribs. (Feed the paper from the rear tray.)

To clean the platen glass and pressure sheet.

exterior, or to wipe off dusts.

its original state.

information.

- Machine buttons

- Computer (MP driver)

Soft, dry, and clean lint-free cloth.

- Machine buttons

- Computer (IJ Network Tool)

- Machine buttons

- Host computer (IJ Network Tool)

1 min.

FAX user data settings

FAX number data When the printer is repaired, etc. To confirm that the

When changing the telephone line type, etc.

To confirm the FAX user data settings.

registered FAX numbers are retained.

- Machine buttons

2 min.

1-3. Special Tools

4 / 64

Name Tool No. Application Remarks

FLOIL KG-107A QY9-0057-000 To the carriage rail sliding portions. In common with the MP610, etc.

1-4. Sensors

No. Sensor Function Possible problems

1 DES sensor Detects paper ejection from the ADF. - Paper jam in the ADF 2 D S sensor Detects paper feeding from the ADF. - No paper in the ADF 3 ADF cover sensor Detects opening and closing of the

document feeder cover.

4 DF open sensor Detects opening and closing of the ADF. - The machine stays in the sleep mode even when the

5 SCN open sensor Detects opening and closing of the

scanning unit (cover).

6 PE sensor Detects paper feeding and ejection. - No paper

7 ASF sensor Controls paper feeding from the rear

tray.

8 APP sensor Controls paper feeding and purging

operation.

9 LF encoder sensor Detects rotation of the LF encoder, and

controls its drive.

10 Carriage encoder

sensor

11 Temperature sensor Detects the temperature of the inside of

12 Ink sensor Detects the position of an ink tank. - No recognition of an ink tank

Detects the position of the timing slit film, and controls printing.

the machine.

- Although the document feeder cover is closed, the machine indicates that the cover is open.

document cover is opened.

- The carriage does not move to the center.

- Paper jam

- Paper feed problem

- ASF sensor error

- APP sensor error

- Uneven printing

- LF position error

- Printing shifts from the correct position.

- Carriage position error

- Internal temperature error

- Wrong position of an ink tank

13 Valve cam sensor Controls purging operation. - Valve cam sensor error 14 Pump roller sensor Detects the position of the pump roller - Pump roller sensor error 15 Purge cam sensor Controls purging operation. - PG cam sensor error

5 / 64

6 / 64

1-5. Serial Number Location

On the inner guide over the upper portion of the spur holder (visible when the scanning unit (cover) is opened)

When the machine power is OFF. When the machine power is ON.

<1. MAINTENANCE>

MX860 / MX868 TABLE OF CONTENTS

7 / 64

2. LIST OF ERROR DISPLAY / INDICATION

Errors and warnings are displayed by the following ways:

1. Operator call errors are indicated by the Alarm LED lit in orange, and the error and its solution are display ed on the LCD in text and by icon.

2. Messages during printin g from a computer are displayed on the MP driver Status Monitor.

3. Error codes (the latest 10 error codes at the maximum) are printed in the "operator call/service call error record" area in EEPROM information print

Buttons valid when an operator call error occurs:

1. ON button: To turn th e machin e off an d on again.

2. OK button: To clear and recover from an error. In some operator call errors, the error will automatically be cleared when the cause of the error is eliminated, and pressing the OK button may not be necessary.

3. Stop butto n: To cancel the job at error occurrence, and to clear the error.

2-1. Operator Call Errors (by Alarm LED Lit in Orange)

Error

No paper in the rear tray.

No paper in the cassette.

Paper jam. [1300] --- The paper is jammed. Paper jam in the

rear guide. Paper jam in the

under guide. Ink may have run

out.

Error codeU No.

[1000] --- Rear tray.

[1003] --- Cassette.

[1303] ---

[1304] ---

[1600] U041 The following ink may

Message on the LCD Solution

There is no paper. Load paper and press [OK].

Clear the paper and press [OK].

have run out. Replacing the ink tank is recommended.

Confirm that the rear tray is selected as the paper source. Set the paper in the rear tray, and press the OK button.

Confirm that the cassette is selected as the paper source. Set the paper in the cassette, and press the OK button.

Remove the jammed paper or foreign material causing a paper jam (paper remainings, clips, pens, etc.), and press the OK button.

Replace the applicable ink tank, or press the OK button to clear the error without ink tank replacement. When the error is cleared by pressing the OK button, ink may run out during printing.

Parts that are likely to be

faulty

- ASF unit

- Pressure roller unit

- Switch system unit

- Paper feed motor

- Pick-up arm unit

- Pressure roller unit

- Switch system unit

- Paper feed motor

- ASF unit

- Pick-up arm unit

- Cassette unit

- Pressure roller unit

- Ink tank

- Spur unit

- Logic board

Ink tank not installed.

Print head not installed, or not properly installed.

Faulty print head ID.

[1660] U043 The following ink tank

cannot be recognized. (Applicable ink tank icon)

[1401] U051 Print head is not

installed. Install the print head.

U052 The type of print head is

incorrect. Install the

Install the applicable ink tank (s) properly, and confirm that the LED's of all the ink tanks light red.

Install the print head properly. - Print head

Re-set the print head. If the error is not cleared, the print

- Ink tank

- Carriage unit

- Logic board

- Carriage unit

- Logic board

- Print head

- Logic board

Print head

8 / 64

temperature sensor error.

[1403] correct print head. head may be defective.

Replace the print head.

Faulty EEPROM data of the print head.

Multiple ink tanks of the same color installed.

Ink tank in a wrong position.

Warning: The ink absorber becomes almost full.

[1405]

[1487] U071 More than one ink tank

of the following color is installed.

[1680] U072 Some ink tanks are not

installed in place.

[1700] --- Contact the support

center or service center for ink absorber replacement. Press [OK] to continue printing.

Replace the wrong ink tank(s) with the correct one(s).

Install the ink tank(s) in the correct position.

Replace the ink absorber, and reset its counter. [See 4-5.

Special Notes on Servicing, (5) Ink absorber counter setting.]

Pressing the OK button will exit the error, and enable printing without replacing the ink absorber. However, when the ink absorber becomes full, no further printing can be performed unless the applicable ink absorber is replaced.

- Ink tank

- Logic board

- Ink tank

- Logic board

- Absorber kit

The connected digital camera or digital video camera does not support Camera Direct Printing.

Automatic duplex printing cannot be performed.

The remaining ink amount unknown (raw ink present).

[2001] --- Incompatible device

detected. Remove the device.

[1310] --- This paper is not

compatible with duplex printing. Remove the paper and press [OK].

[1683] U130 (Applicable ink tank

icon) The remaining level of the ink cannot be correctly detected.

Remove the cable between the camera and the machine.

The paper length is not supported for duplex printing. Press the OK button to eject the paper being used at error occurrence. Data which was to be printed on the back side of paper at error occurrence is skipped (not printed).

An ink tank which has once been empty is installed. Replace the applicable ink tank with a new one. Printing with a once-empty ink tank can damage the machine. To continue printing without replacing the ink tank(s), press the Stop button for 5 sec. or longer to disable the function to detect the remaining ink amount. After the operation, it is recorded in the machine EEPROM that the function to detect the remaining ink amount was disabled.

- PictBridge board

- Logic board

- Duplex feed roller unit

- PE sensor board

- Logic board

- Ink tank

- Spur unit

Ink tank not

9 / 64

recognized.

[1684] U140 The following ink tank

cannot be recognized. (Applicable ink tank icon)

A non-supported ink tank (an ink tank that is sold in a different region from where the machine was purchased) is installed (the ink tank LED is turned off). Install the supported ink tanks.

- Ink tank

- Logic board

Ink tank not recognized.

No ink (no raw ink).

Non-supported hub.

[1682] U150 The following ink tank

cannot be recognized. (Applicable ink tank icon)

[1688] U163 The ink has run out.

Replace the ink tank. (Applicable ink tank icon)

[2002] --- An unsupported USB

hub is connected. Remove the hub.

A hardware error occurred in an ink tank (the ink tank LED is turned off). Replace the ink tank(s).

Replace the empty ink tank(s), and close the scanning unit (cover). Printing with an empty ink tank can damage the machine. To continue printing without replacing the ink tank(s), press the Stop button for 5 sec. or longer to disable the function to detect the remaining ink amount. After the operation, it is recorded in the machine that the function to detect the remaining ink amount was disabled.

Remove the applicable USB hub from the PictBridge (USB) connector.

- Ink tank

- Logic board

- Ink tank

- Spur unit

- Logic board

- PictBridge board

- Logic board

Document cover not closed.

Paper jam in the ADF.

No paper in the ADF.

Paper in the ADF is too long.

Duplex printing not available with the paper in the ADF.

--- --- The feeder cover is open. Close cover and press [OK].

--- --- Document in ADF. Redo operation after checking document in ADF and pressing [OK].

--- --- No document in ADF. Press [OK] and redo operation after setting document.

--- --- Document size is too long. Redo operation after checking document on ADF and pressing [OK].

--- --- Document size not suitable for two-sided scanning. Press [OK] to cancel operation and discharge document.

Close the document cover, and press the OK button.

Remove the paper from the ADF, and press the OK button.

Press the OK button to clear the error.

Remove the paper from the ADF, and press the OK button.

- DF unit

- DF switch unit

- DF unit

2-2. Service Call Errors (by Cyclic Blinking of Alarm and Power LEDs)

10 / 64

Service call errors are indicated by the number of cycles the Alarm and Power LEDs blink, and the corresponding error code with the message, "Printer error has occurred. Turn off power then back on again. If problem persists, see the manual." is displayed on the LCD.

Cycles of

blinking of

Alarm and

Power

LEDs

Error

Error code

Conditions

(Check points and replacement

Solution

items)

2 times Carriage error [5100] An error occurred in the carriage

encoder signal.

3 times Line feed error [6000] An error occurred in the LF

encoder signal.

(1) Smearing or scratches on the carriage

slit film;

clean the timing slit film.

(2) Foreign material or paper debris that

obstructs the carriage movement;

remove foreign material.

(3) Ink tank conditions;

re-set the ink tanks. (4) Cable connection (5) Part replacement:

- Timing slit disk film

- Carriage unit

- Logic board

- Carriage motor

(1) Smearing or scratches on the LF / EJ slit

film;

clean the LF / EJ slit film. (2) Foreign material or paper debris in the

LF drive;

remove foreign material. (3) Cable connection (4) Part replacement:

- LF / EJ slit film

- LF / EJ timing sensor unit

- Paper feed roller unit

- Logic board

- Paper feed motor

4 times Purge cam sensor

error

5 times ASF (cam) sensor

error

6 times Internal

temperature error

7 times Ink absorber full [5B00, The ink absorber is supposed to (1) Ink absorber condition

[5C00] An error occurred in the purge

unit.

[5700] An error occurred in the ASF

cam sensor.

[5400] The internal temperature is not

normal.

(1) Foreign material or paper debris around

the purge drive system unit;

remove foreign material. (2) Cable connection (3) Part replacement:

- Purge drive system unit

- Logic board

(1) Cable connection (2) Part replacement:

- ASF unit

- PE sensor board unit

- Logic board

(1) Cable connection (2) Part replacement:

- Spur unit

- Logic board

- Print head

5B01] be full.

11 / 64

Message on the LCD:

Ink absorber full. Service required.

Error codes:

5B00: Main ink absorber is full (overseas). 5B01: Main ink absorber is full (Japan). (In EEPROM information print, "5B00" is printed instead of "5B01.")

(2) Part replacement:

(3) Ink absorber counter value in the

- Ink absorber kit

EEPROM;

reset the ink absorber counter.

8 times Print head

temperature rise error

9 times EEPROM error [6800,

10 times VH monitor error [B200] The internal temperature

11 times Carriage lift

mechanism error

12 times APP position error [6A80] An error occurred in the APP

14 times APP sensor error [6A90] An error occurred during paper

[5200] The print head temperature

exceeded the specified value.

A problem occurred in reading

6801]

[5110] The carriage did not move up or

from or writing to the EEPROM.

exceeded the specified value.

down properly.

motor.

feeding or purging.

(1) Print head condition (2) Cable connection (3) Part replacement:

- Print head

- Logic board

(1) Part replacement:

- Logic board

(1) Part replacement:

- Print head and logic board (Replace them at the same time.)

- Power supply unit

(1) Foreign material or paper debris that

obstructs the carriage movement;

remove foreign material.

(2) Part replacement:

- Switch system unit

- Carriage unit

(1) Foreign material or paper debris around

the purge drive system unit;

remove foreign material.

(2) Foreign material or paper debris around

the ASF unit;

remove foreign material. (3) Cable connection (4) Part replacement:

- Purge drive system unit

- Logic board

Paper feed cam sensor error

16 times Pump roller sensor

error

17 times Paper eject encoder

error

[6B10] An error occurred in the paper

feed cam sensor during paper feeding from the cassette, or the paper absorbing a large amount of ink jammed in the PF rear guide.

[5C20] The pump roller position cannot

be detected.

[6010] An error occurred in the paper

eject encoder signal.

(1) Jammed paper in the PF rear guide

(when a large amount of ink was absorbed in the paper);

remove the jammed paper and

foreign material. (2) Foreign material or paper debris in the

cassette or in the PF rear guide;

remove foreign material. (3) Part replacement:

- PF pick-up unit

- Logic board

(1) Cable connection (2) Part replacement:

- Purge drive system unit

(1) Smearing or scratches on the LF / EJ slit

film;

clean the LF / EJ slit film.

(2) Foreign material or paper debris in the

12 / 64

paper path;

remove foreign material. (3) Cable connection (4) Part replacement:

- LF / EJ slit film

- LF / EJ timing sensor unit

- Platen unit

- Logic board

- Paper feed motor

19 times Ink tank position

sensor error

20 times Other errors [6500] An unidentified error or a

21 times Drive switch error [C000] Drive was not switched properly. (1) Foreign material or paper debris in the

22 times

Scanner error [5011] An error occurred in the scanner. (1) Document pressure sheet conditions

[6502] None of the ink tank position is

detected.

network error occurred.

(1) Ink tank position;

confirm the ink tank position. (2) Re-set or replacement of ink tanks (3) Cable connection (4) Part replacement:

- Spur unit

- Logic board

(1) Part replacement:

- Logic board

- WLAN board

drive switch area;

remove foreign material. (2) Ink tank conditions;

confirm that the ink tanks are

seated properly, or re-set the ink

tanks properly. (3) Part replacement:

- Carriage unit

- Purge drive system unit

- ASF unit

(1) Cable connection (2) Part replacement:

- Document pressure sheet (sponge sheet)

- Scanner unit

- Logic board

FB motor error [5012] An error occurred in the scanner

23 times Valve cam sensor

error

Before replacement of the logic board ass'y, check the ink absorber counter value (by service test print or EEPROM information print). If the counter value is 7% or more, also replace the ink absorber kit when replacing the logic board ass'y. If the counter value is less than 7%, register the current ink absorber counter value to the replaced new logic board instead. [See 4-5. Special Notes on Servicing, (5) Ink absorber

counter setting, for details.]

FB motor.

[6C10] The valve cam sensor was faulty

at power-on or when purging was attempted.

(1) Cable connection (2) Part replacement:

- Scanner unit

(1) Foreign material or paper debris around

the purge drive system unit;

remove foreign material. (2) Cable connection (3) Part replacement:

- Purge drive system unit

- Logic board

2-3. FAX Errors

13 / 64

For errors other than those listed below, please refer to the "G3 / G4 Facsimile Error Code List (Rev. 2." (HY8-23A0-020 in Japanese, HY8-22A6-020 in English).

(1) User error codes

Solution

Error code TX / RX Meaning

#001 TX Document jam - DF unit #003 TX / RX Document is too long, or page time-over - DF unit #005 TX / RX Initial identification (T0 / T1) time-over - Check the telephone line type

#009 RX Recording paper jam, or no recording paper - ASF unit

#012 TX No recording paper at the receiving machine #017 TX Redial time-over, but no DT detected

(Parts that are likely to be

faulty)

settings (rotary pulse / touch tone).

- Pick-up arm unit

- Cassette unit

- Pressure roller unit

#018 TX Auto dialing transmission error, or redial

time-over #022 TX Call failed (no dial registration) - Register a dial number. #037 RX Memory overflow at reception of an image - Delete unnecessary image data from

#085 TX No color fax function supported in the

receiving machine #099 TX / RX Transmission terminated mid-way by pressing

the Stop/Reset button #995 TX / RX During TX (sending): Memory transmission

reservation cancelled

During RX (receiving): Image data received

in the memory cleared

- Check the telephone line type settings (rotary pulse / touch tone).

the memory.

- Send a fax in the B&W mode.

(2) Service error codes

Error

code

##100 TX Re-transmission of the procedure signal has been attempted

TX /

Meaning

the specified number of times, but failed.

Solution

(Parts that are likely to be faulty)

- Try a higher transmission level.

##101 TX / RXSender's modem speed does not match the receiving machine.

##102 TX Fallback is not available. - Try a higher transmission level. ##103 RX EOL has not been detected for 5 seconds (or 15 seconds in

CBT). ##104 TX RTN or PIN has been received. - Try a higher transmission level. ##106 RX The procedure signal has been expected for 6 seconds, but not

received. ##107 RX Fallback is not available at the sending machine. - Increase the transmission level of the

- Increase the transmission level of the sending machine.

sending machine.

##109 TX After DCS transmission, a signal other than DIS, DTC, FTT,

14 / 64

CFR, or CRP has been received, and re-transmission of the procedure signal has been attempted the specified number of times but failed.

##111 TX / RXMemory error - Eliminate all the data, and register

##114 RX RTN has been received. - Increase the transmission level of the

them again.

sending machine.

##200 RX A carrier has not been detected for 5 seconds during image

reception.

##201 TX / RXDCN has been received in a method other than the binary

procedure. ##204 TX DTC has been received even when there is no sending data. ##220 TX / RXSystem error (main program hang-up) - Turn the machine off, and turn it on

##224 TX / RXAn error has occurred in the procedure signal in G3

transmission. ##226 TX / RXThe stack pointer has shifted from the RAM area. - Turn the machine off, and turn it on

##229 RX The recording area has been locked for 1 minute. - After the area is unlocked, print the

##232 TX The encoder control unit has malfunctioned. - Modular board

##237 RX The decoder control unit has malfunctioned. - Modular board

- Increase the transmission level of the sending machine.

- Set the other machine ready for reception.

again

- Modular board

- Logic board

again.

recorded image.

- Logic board

##238 RX The print control unit has malfunctioned. - Modular board

- Logic board

##261 TX / RXA system error has occurred between the modem and the

system control board.

##280 TX Re-transmission of the procedure signal has been attempted

the specified number of times, but failed.

##281 TX Re-transmission of the procedure signal has been attempted

the specified number of times, but failed.

##282 TX Re-transmission of the procedure signal has been attempted

the specified number of times, but failed.

##283 TX Re-transmission of the procedure signal has been attempted

the specified number of times, but failed.

##284 TX After TCF transmission, DCN has been received. - Set the receiving machine ready for

##285 TX After EOP transmission, DCN has been received. - Re-send the fax. ##286 TX After EOM transmission, DCN has been received. - Re-send the fax. ##287 TX After MPS transmission, DCN has been received. - Re-send the fax. ##288 TX After EOP transmission, a signal other than PIN, PIP, MCF,

RTP, RTN has been received.

- Modular board

- Logic board

- Try a higher transmission level.

reception.

##289 TX After EOM transmission, a signal other than PIN, PIP, MCF,

RTP, RTN has been received.

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##290 TX After MPS transmission, a signal other than PIN, PIP, MCF,

RTP, RTN has been received.

##670 TX In V.8 late start, the DIS V.8 ability from the receiving

machine was detected, and CI was sent in response; however, the procedure failed, causing T1 time-over.

##671 RX In V.8 call reception, the procedure fails to proceed to phase 2

after CM detection, causing T1 time-over.

##672 TX In V.34 transmission, the procedure fails to proceed from

phase 2 to phase 3 or later, causing T1 time-over

##673 RX In V.34 reception, the procedure fails to proceed from phase 2

to phase 3 or later, causing T1 time-over

##674 TX In V.34 transmission, the procedure fails to proceed from

phase 3 or 4 to the control channel or later, causing T1 timeover

##675 RX In V.34 reception, the procedure fails to proceed from phase 3

or 4 to the control channel or further, causing T1 time-over

- In bit 0 of the service data #1 SSSW SW28, prohibit the V.8 / V.34 procedure of the sending machine.

##750 TX After transmitting PPS-NULL in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##752 TX After transmitting PPS-NULL in ECM transmission, DCN

has been received.

##753 TX After transmitting PPS-NULL in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

##754 TX After transmitting PPS-NULL in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed.

##755 TX After transmitting PPS-MPS in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##757 TX After transmitting PPS-MPS in ECM transmission, DCN has

been received.

##758 TX After transmitting PPS-MPS in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

- Try a higher transmission level.

- Increase the period of time of the T5 time-over.

- Try a higher transmission level.

- Increase the period of time of the T5 time-over.

##759 TX After transmitting PPS-MPS in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed.

##760 TX After transmitting PPS-EOM in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

- Try a higher transmission level.

##762 TX After transmitting PPS-EOM in ECM transmission, DCN has

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been received.

- Try a higher transmission level.

##763 TX After transmitting PPS-EOM in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

##764 TX After transmitting PPS-EOM in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed.

##765 TX After transmitting PPS-EOP in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##767 TX After transmitting PPS-EOP in ECM transmission, DCN has

been received.

##768 TX After transmitting PPS-EOP in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

##769 TX After transmitting PPS-EOP in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed.

- Increase the period of time of the T5 time-over.

- Try a higher transmission level.

- Increase the transmission level of the receiving machine.

- Try a higher transmission level.

- Increase the transmission level of the receiving machine.

- Try a higher transmission level.

- Increase the period of time of the T5 time-over.

- Try a higher transmission level.

- Increase the transmission level of the receiving machine.

##770 TX After transmitting EOR-NULL in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##772 TX After transmitting EOR-NULL in ECM transmission, DCN

has been received.

##773 TX After transmitting EOR-NULL in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

##774 TX After transmitting EOR-NULL in ECM transmission, ERR

has been received.

##775 TX After transmitting EOR-MPS in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##777 TX After transmitting EOR-MPS in ECM transmission, DCN has

been received.

##778 TX After transmitting EOR-MPS in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

- Try a higher transmission level.

- Increase the transmission level of the receiving machine.

- Try a higher transmission level.

- Increase the period of time of the T5 time-over.

- Try a higher transmission level.

- Increase the period of time of the T5 time-over.

##779 TX After transmitting EOR-MPS in ECM transmission, ERR has

been received.

##780 TX After transmitting EOR-EOM in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##782 TX After transmitting EOR-EOM in ECM transmission, DCN - Increase the transmission level of the

- Try a higher transmission level.

- Increase the transmission level of the receiving machine.

has been received. receiving machine.

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##783 TX After transmitting EOR-EOM in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

##784 TX After transmitting EOR-EOM in ECM transmission, ERR has

been received.

##785 TX After transmitting EOR-EOP in ECM transmission, no

significant signal has been received, and re-transmission of the procedure signal has been attempted the number of specified times but failed.

##787 TX After transmitting EOR-EOP in ECM transmission, DCN has

been received.

##788 TX After transmitting EOR-EOP in ECM transmission, re-

transmission of the procedure signal has been attempted the number of specified times but failed, or T5 time-over (60 sec.) has occurred.

##789 TX After transmitting EOR-EOP in ECM transmission, ERR has

been received.

##790 RX After receiving EOR-EOP in ECM reception, ERR has been

transmitted.

- Increase the period of time of the T5 time-over.

- Try a higher transmission level.

- Increase the transmission level of the receiving machine.

- Try a higher transmission level.

- Increase the period of time of the T5 time-over.

- Try a higher transmission level.

- Increase the transmission level of the sending machine.

##791 TX / RXDuring the ECM mode procedure, a signal other than a

significant one has been received.

##792 RX In ECM reception, PPS-NULL between partial pages has not

been detected.

##793 RX During high-speed signal reception in ECM, no effective

frame has been detected, and a time-over has occurred.

- Increase the transmission level of the sending machine.

- Try a higher transmission level.

- Increase the transmission level of the sending machine.

2-4. Troubleshooting by Symptom

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Symptom Solution

Faulty operation The power does not turn on.

The power turns off immediately after power-on.

A strange noise occurs. (1) Examine and remove any foreign material or paper

The LCD does not display properly. A portion of the LCD is not displayed. The display flickers.

Paper feed problems (multi-feeding, skewed feeding, no feeding).

(1) Confirm connection of the power supply unit:

- Harness and connector conditions

(2) Replace the following item(s):

- Logic board

- Power supply unit

- Panel board

debris.

(2) Replace the following item(s):

- The part generating the strange noise

- Logic board

(1) Confirm cable connection (LCD FFC and panel

harness):

- Harness and connector conditions

- No cable breakage, etc.

(2) Replace the following item(s):

- LCD FFC

- LCD viewer unit

- Panel board

- Logic board

(1) Examine and remove any foreign material or pap e r

debris.

(2) Confirm the PF rear cover and the cassette

conditions. (3) Confirm cable connection. (4) Replace the following item(s):

- ASF unit (for paper feeding error from the rear tray)

- PF pick-up unit (for paper feeding error from the cassette)

- DF unit (for document scanning error)

- PE sensor board

- Pressure roller unit

- Cassette unit

Faulty scanning (no scanning, strange noise).

Unsatisfactory print quality No printing , or no color ejected.

Faint printing, or white lines on printouts. Uneven printing. Improper color hue.

(1) Confirm cable connection (scanner motor cable and

CIS FFC):

- Harness and connector conditions

- No cable breakage, etc.

(2) Replace the following item(s):

- Scanner unit

- Logic board

(1) Confirm the ink tank conditions:

- Confirmation of the air-through of an ink tank

- Re-setting of an ink tank

(2) Remove foreign material from the purge unit caps, if

any. (3) Perform cleaning or deep cleaning of the print head. (4) Perform print head alignment. (5) Replace the following item(s):

- Print head

- Logic board

- Purge drive system unit

, and ink tanks

Paper gets smeared. (1) Clean the inside of the machine.

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(2) Perform bottom plate cleaning. (3) Perform paper feed roller cleaning.

The back side of paper gets smeared. (1) Clean the inside of the machine.

(2) Perform bottom plate cleaning. (3) Examine the platen ink absorber. (4) Examine the paper eject roller. (5) Replace the following item(s):

- The part in the paper path causing the smearing

Faulty scanning

Graphic or text is enlarged on printouts in the carriage movement direction.

Graphic or text is enlarged on printouts in the paper feed direction.

No scanning. (1) Replace the following item(s):

Streaks or smears on the scanned image.

(1) Confirm that the carriage slit film is free from

smearing or scratches:

- Cleaning of the timing slit film.

(2) Replace the following item(s):

- Timing slit film

- Carriage unit

- Logic board

- Scanner unit (for copying)

(1) Confirm that the LF / EJ slit film is free from

smearing or scratches:

- Cleaning of the LF / EJ slit film..

(2) Replace the following item(s):

- LF / EJ slit film

- LF / EJ timing sensor unit

- Platen unit

- Logic board

- Scanner unit (for copying)

- Scanner unit

- Logic board

(1) Clean the platen glass and the document pressure

sheet. (2) Confirm the position of the document pressure

sheet. (3) Replace the following item(s):

- Scanner unit

- Document pressure sheet

- Logic board

Network connection problem No printing. (1) Examine if printing is performed properly via USB

connection. (2) Confirm the network settings. (3) Replace the following item(s):

- Logic board (for wired / wireless LAN)

- WLAN board (for wireless LAN)

FAX problem No FAX sending or reception. (1) Confirm the FAX settings.

(2) Replace the following item(s):

- Modular board

- Logic board

*1: Replace the print head only after the print head deep cleaning is performed 2 times, and when the problem persists.

<2. LIST OF ERROR DISPLAY / INDICATION>

MX860 / MX868 TABLE OF CONTENTS

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3. REPAIR

3-1. Major Replacement Parts (and Notes on Disassembling / Reassembling)

Service

part

Logic board ass'y

Est. time

required

(min.)

15 (1) Right cover

Recommended removal

(2) Logic board

- Before removal of the logic board ass'y, remove the power cord, and allow for approx. 1 minute (for discharge of capacitor's accumulated charges), to prevent damages to the logic board ass'y.

- Before replacement, check the ink absorber counter value (by service test print or EEPROM information print).

procedure / Notes on

replacement

Adjustment / settings Operation check

After replacement:

1. Initialize the EEPROM.

2. Set the ink absorber counter value.

3. Set the destination in the EEPROM.

4. Correct the CD / DVD and automatic print head alignment sensors.

5. Check the ink system function.

6. Perform LF / Eject correction.

7. Perform button and LCD test. Perform 1 to 7 in the service mode. [See 4-2. Service Mode, for details.]

8. Perform print head alignment and LCD language setting in the user mode.

- EEPROM information print

- Service test print

- Printing via USB connection

- Copying

- Direct printing from a digital camera (PictBridge)

Absorber kit 15 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Printer unit (6) Absorber kit

Carriage unit

20 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Printer unit (6) Logic board / PE sensor (7) ASF unit (8) Carriage unit

After replacement:

1. Reset the ink absorber counter. [See 4-2. Service Mode, for details.]

At replacement:

1. Before removal of the carriage rail, mark the carriage rail position. [See 4-5. Special Notes

on Servicing, (3) Carriage unit replacement, for details.]

2. Apply grease to the sliding portions of the carriage rail. [See 4-4. Grease

Application, for details.]

3. Check the ink system function. [See 4-2. Service Mode, for details.]

4. Perform print head

- Ink absorber counter value print (After the ink absorber counter is reset, the counter value is printed automatically.)

- Service test print (Confirm ink system function.)

alignment in the user mode.

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Switch system unit

Paper feed motor

Platen unit 30 (1) Right cover

30 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Printer unit (6) Logic board / PE sensor (7) ASF unit (8) Carriage unit (9) Spur unit / Platen unit (10) Switch system / Paper feed motor

- The screws securing the paper feed

motor are allowed to be loosened only for paper feed motor replacement. (DO NOT loosen them in any other cases.)

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Printer unit (6) Logic board (7) Carriage unit (8) Spur unit (9) Platen unit

At replacement:

1. Adjust the paper feed motor. [See 4-5. Special Notes

on Servicing, (2) Paper feed motor adjustment,

for details.]

After replacement:

1. Perform LF / Eject correction in the service mode. [See 4-2. Service Mode, for details.]

- EEPROM information print

- Service test print

- EEPROM information print

- Service test print

Spur unit 30 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Printer unit (6) Logic board (7) Carriage unit (8) Spur unit (9) Platen unit

- DO NOT contact the spur edges.

Purge drive system unit

30 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Printer unit (6) Logic board / PE sensor (7) ASF unit (8) Carriage unit (9) Spur unit / Platen unit (10) Purge drive system unit

After replacement:

1. Check the ink system function.

2. Perform LF / Eject correction in the service mode. [See 4-2. Service Mode, for details.]

After replacement:

1. Confirm the purging operation and the machine operation. [See 4-6. Verification

After Repair for details.]

- EEPROM information print

- Service test print

Carriage rail and main chassis

30 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover)

At replacement:

1. Apply grease to the sliding portions. [See 4-4. Grease

- Service test print

Idler pulley

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parallel pin APP code

wheel gear shaft

30 (4) Main case

(5) Printer unit

(6) Logic board / PE sensor (7) ASF unit (8) Carriage unit (9) Spur unit / Platen unit (10) Purge drive system unit

Application, for details.]

Document pressure sheet

Document bottom cover

Scanner unit 10 LCD ass'y 10 (1) Panel cover

Timing slit strip film

Timing slit disk feed film

10 (1) Right cover

(2) Left cover (3) Scanner unit

(2) Operation panel (3) LCD ass'y

- Be cautious not to scratch or damage the LCD cable.

15 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover)

(4) Main case

- Upon contact with the film, wipe the film with ethanol.

- Confirm no grease is on the film. (Wipe off any grease thoroughly with ethanol.)

- Do not bend the film

At replacement:

1. Confirm the document pressure sheet position. [See 4-5. Special Notes

on Servicing, (4) Document pressure sheet replacement, for details.]

At replacement:

1. Perform button and LCD test. [See 4-2. Service Mode, for details.]

After replacement:

1. Perform print head alignment in the user mode.

2. Perform LF / Eject correction in the service mode. [See 4-2. Service Mode, for details.]

- Service test print

- EEPROM information print

- Service test print

Print head 1

Wireless LAN board ass'y

15 (1) Right cover

(2) Left cover (3) Document cover / Scanning unit

(cover) (4) Main case (5) Wireless LAN board ass'y

After replacement:

1. Perform print head alignment in the user mode.

2. Perform nozzle check pattern printing in the user mode.

After replacement:

1. Reset the LAN settings in the user mode.

2. Print the EEPROM information in the service mode to confirm that the WL LAN MAC address is properly updated. [See 4-2. Service Mode, for details.]

- Service test print

- EEPROM information print

- Service test print

*1: General notes:

23 / 64

- Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly. See 3-

2. Part Replacement Procedures or the Parts Catalog for details.

- Do not drop the ferrite core, which may cause damage.

- Protect electrical parts from damage due to static electricity.

- Before removing a unit, after removing the power cord, allow the machine to sit for approx. 1 minute (for capacitor discharging to protect the logic board ass'y from damages).

- Do not touch the timing slit strip film, timing slit disk feed film, and timing slit disk eject film. No grease or abrasion is allowed.

- Protect the units from soiled with ink.

- Protect the housing from scratches.

- Exercise caution with the screws, as follows:

i. The screws of the paper feed motor may be loosened only at replacement of the paper feed motor unit

ii. Before loosening the 3 screws that fix the carriage rail to the main chassis, mark the screw positions so

(DO NOT loosen them in other cases).

that the carriage rail will be re-attached to the main chassis in its original position. [See 4-5. Special

Notes on Servicing, (3) Carriage unit replacement, for details.]

<3-1. Major Replacement Parts>

MX860 / MX868 --- 3. REPAIR TABLE OF CONTENTS

24 / 64

3-2. Part Replacement Procedures (Click on the image to enlarge it.)

Be sure to protect the machine from static electricity in repair servicing, especially for the LCD, operation panel board, scanner unit, logic board, card board, WLAN board, modular board, and PE sensor board.

(1) External housing, scanner unit, and document cover removal

1) Remove the cassette and the rear guide unit. (no screws)

2) Remove the AC adapter. (1 screw) <Pull out the AC adapter from the bottom of the bottom case.> <The core fits to the AC adapter rib.> See "4-5. Special Notes on Servicing, (6) Power supply unit and modular board replacement."

3) Remove the side cover R. (2 screws)

25 / 64

4) Remove the scanner cable, LCD cable, document feeder harness, panel ground harness, and core. (1 screw)

26 / 64

5) Remove the side cover L, disengage the scanner support, then separate the scanner from the printer. (4 screws)

6) Separate the scanner from the document feeder. (no screws)

27 / 64

+ 76 hidden pages