Canon PIXMA MX7600 User manual

MX7600
Service Manual
Revision 0
QY8-13BU-000
COPYRIGHTc2008 CANON INC. CANON MX7600 032008 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.
Copyright
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.
Copyright © 2008 by Canon Inc.
CANON INC.
Inkjet Device Quality Assurance Div. 2
451, Tsukagoshi 3-chome, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8530, Japan

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. 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. Other Error Messages
2-5. Warnings
2-6. Troubleshooting by Symptom
3. REPAIR
3-1. Notes on Service Part Replacement
3-2. Special Notes on Repair Servicing
(1) External housing, ADF, and scanner unit removal
(2) Printer unit separation from the bottom case (how to remove the screw under the purge unit)
(3) Operation panel removal
(4) AC adapter removal
(5) Emblem removal
(6) Positioning of the RCT pump valve unit tube
(7) Cable wiring and connecter connection
3-3. Adjustment / Settings
(1) Paper feed motor adjustment
(2) Grease application
(3) Ink absorber counter setting
(4) User mode
(5) Service mode
A: Service mode operation
B: Destination settings
C: Ink absorber counter resetting
D: Wetting liquid counter resetting
E: Ink absorber counter setting
F: LF / Eject correction
G: Button and LCD test
(6) PTT parameter mode
A: PTT parameter mode operation
B: #1 BIT SWITCH
C: #2 NUMERIC PARAM
D: Confirmation of the setting values
3-4. Verification Items
(1) Service test print
(2) Ink absorber counter value print
4. MACHINE TRANSPORTATION
MX7600
<TABLE OF CONTENTS>

1. MAINTENANCE
1-1. Adjustment, Periodic Maintenance, Periodic Replacement Parts, and Replacement
Consumables by Service Engineer
(1) Adjustment
MX7600 TABLE OF CONTENTS
Adjustment Timing Purpose Tool Approx.
time
EEPROM
initialization - At logic board replacement To initialize settings None. Perform in the service
mode.
1 min.
Destination
settings (EEPROM
settings)
- At logic board replacement To set destination. None.
Perform in the service
mode.
1 min.
Ink absorber
counter / wetting
liquid counter
resetting
(EEPROM
settings)
- At logic board replacement
- At ink absorber
replacement*1
- At wetting liquid unit
replacement*1
To reset the ink absorber or
wetting liquid counter. None. Perform in the service
mode.
1 min.
Ink absorber
counter value
setting
(EEPROM
settings)
- At logic board replacement To set the ink amount data in
the ink absorber to the ink
absorber counter.
None.
Perform in the service
mode.
1 min.
Ink absorber /
wetting liquid unit
replacement
- When the ink absorber
becomes full*1
- When the wetting liquid unit
becomes empty*1
To replace the ink absorber or
the wetting liquid unit with a
new one.
Screwdriver, a pair of
tweezers, etc. 20 min.
Paper feed motor
position
adjustment
- At paper feed motor
replacement To adjust the belt tension. (Position the paper feed motor
so that the belt is stretched
tight.)
None. 5 min.
Automatic print
head alignment - At print head replacement - At logic board replacement
- When print quality is not
satisfying
To secure the dot placement
accuracy. 4 sheets of plain paper. Perform in the user
mode.
9 min.
Manual print head
alignment - At print head replacement - At logic board replacement
- When print quality is not
satisfying
To secure the dot placement
accuracy. 2 sheets of plain paper. Perform in the user
mode.
10 min.
Grease application - At carriage unit replacement
- At lift cam replacement
- To gears
To maintain sliding properties
of the following items:
- Carriage shaft
- Lift cam bushing
- Machine sliding portions
(gears)
FLOIL KG-107A 1 min.
Ink system
function check - At logic board replacement - At spur base replacement
- At carriage unit replacement
To maintain detection
functionality for presence of the
ink tanks and each ink tank
position.
None.
Perform in the service
mode.
1 min.
LCD language
settings - At logic board replacement To set the language to be displayed on the LCD. None. Perform in the user 1 min.
1 / 65

*1: The ink absorber and wetting liquid unit should be replaced at the same time.
(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.
mode.
LF / Eject
correction - At logic board replacement - At feed roller ass'y
replacement
To correct line feeding (LF
roller diameter). None. Perform in the service
mode.
5 min.
(LF
correction
and Eject
correction
is
performed
at the same
time.)
- At logic board replacement
- At platen unit replacement To correct line feeding (eject roller diameter). None. Perform in the service
mode.
LAN resetting - At protection sheet
replacement To initialize the network setting. None. Perform in the user
mode.
- Machine buttons
- Computer (IJ Network
tool)
1 min.
LAN setting
information
display
- At confirmation of the
network setting (as needed) To confirm the network setting. None. Perform in the user
mode.
- Machine buttons
- Computer (IJ Network
tool)
1 min.
- DO NOT loosen the red screws at both ends of the carriage shaft, securing the print head position, as they
are not re-adjustable.
- The red screws securing the paper feed motor may be loosened only at replacement of the paper feed motor
unit.
2 / 65

1-2. Customer Maintenance
Adjustment Timing Purpose Tool Approx.
time
Automatic print head
alignment - At print head replacement - When print quality is not satisfying
(uneven printing, etc.)
To ensure accurate dot
placement. - Machine buttons
- Plain paper
- Computer
(MP driver)
9 min.
Manual print head
alignment - At print head replacement - When print quality is not satisfying
(uneven printing, etc.)
To ensure accurate dot
placement. - Machine buttons
- Plain paper
- Computer
(MP driver)
10 min.
Print head cleaning When print quality is not satisfying. To improve nozzle
conditions. - Machine buttons
- Computer
(MP driver)
1 min.
Print head deep
cleaning When print quality is not satisfying, and not improved by print head cleaning. To improve nozzle conditions. - Machine buttons
- Computer
(MP driver)
2 min.
Ink tank replacement When an ink tank becomes empty. ("No
ink error" displayed on the monitor or on
the machine LCD, or short flashing of an
ink tank LED)
To replace the empty ink
tank. --- 1 min.
Pick-up roller cleaning
(Roller cleaning) - When paper does not feed properly. - When the front side of the paper is
smeared.
To clean the pick-up rollers
of the rear tray. - Machine buttons
- Computer
(MP driver)
2 min.
Rear tray sub-roller
cleaning When the paper fed from the rear tray is smeared due to ink mist attached to the
rear tray sub-rollers.
To clean the rear tray sub-
rollers. - Machine buttons 1 min.
Bottom plate cleaning When the back side of the paper is
smeared. To clean the platen ribs. - Machine buttons
- Computer
(MP driver)
1 min.
Scanning area cleaning When the platen glass or document
pressure sheet is dirty. To clean the platen glass and pressure sheet. Soft, dry, and clean lint-free
cloth.
1 min.
Exterior cleaning When necessary To clean the machine
exterior. Soft, dry, and clean lint-free
cloth.
1 min.
Paper feed roller
cleaning
(Sheet cleaning)
When "The transport unit may not be
clean." is displayed.
Perform cleaning using the cleaning sheet.
To clean the paper feed
rollers. - Machine buttons
- Computer
(MP driver)
2 min.
Ink quality maintenance
(automatic maintenance
at default)
One time per week (when no printing is
performed for a week) To prevent pigment components from settling to
the bottom, and to equalize
ink density
- Machine
buttons
- Computer
(MP driver)
10 sec. to
2 min.
3 / 65

1-3. Special Tools
1-4. Serial Number Location
On the carriage flexible cable holder (visible on the right of the carriage after the machine is turned on, the scanning unit is opened,
and the carriage stops at the ink tank replacement position)
Name Tool No. Application Remarks
FLOIL KG-107A QY9-0057-000 To the carriage shaft sliding portions and lift cam bushing. In common with the MP610, etc.
<1. MAINTENANCE>
4 / 65

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 displayed on the LCD in
text and by icon.
2. Messages during printing from a computer are displayed on the MP driver Status Monitor.
3. Error codes 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/OFF button: To turn the machine off and 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/Reset button: To cancel the job at error occurrence, and to clear the error.
2-1. Operator Call Errors (by Alarm LED Lit in Orange)
MX7600 TABLE OF CONTENTS
Error Error
code U No. Message on the LCD Solution
No paper in the rear
tray. [1000] --- Rear tray. There is no paper. Load paper
and press [OK].
Confirm that the rear tray is selected as the paper source.
Set the paper in the rear tray, and press the OK button.
No paper in the
cassette. [1003] --- Cassette. There is no paper. Load paper
and press [OK].
Confirm that the cassette is selected as the paper source.
Set the paper in the cassette, and press the OK button.
Paper jam. [1300] --- The paper is jammed. Clear
the paper and press [OK]. Remove the jammed paper, and press the OK button.
Paper jam in the rear
guide (when paper
feeding from the
cassette).
[1303] ---
Paper jam in the
under guide (during
automatic duplex
printing).
[1304] ---
Ink may have run
out. [1600] U041 U044 The ink may have run out. Replacing the ink tank is
recommended.
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.
Ink tank not installed. [1660] U043 The following ink tank cannot
be recognized.
(Applicable ink tank icon)
Install the applicable ink tank(s) properly, and confirm
that the LED's of all the ink tanks light red.
No Clear ink. [1692] U045 The clear ink tank is empty. Replace the Clear ink tank with a new one, or press the
OK button to continue printing without Clear ink tank
replacement. However, when Clear ink is completely used
up, no further printing on plain paper can be performed
unless the empty Clear ink tank is replaced with a new
one.
Print head not
installed, or not
properly installed.
[1401] U051 Print head is not installed.
Install the print head. Install the print head properly.
Faulty print head ID. [1401] U052 The type of print head is
incorrect. Install the correct
print head.
Re-set the print head. If the error is not cleared, the print
head may be defective. Replace the print head.
Print head
temperature sensor
error.
[1403]
Faulty EEPROM data [1405]
5 / 65

of the print head.
Multiple ink tanks of
the same color
installed.
[1681] U071 More than one ink tank of the
following color is installed. Replace the wrong ink tank(s) with the correct one(s).
Ink tank in a wrong
position. [1680] U072 Some ink tanks are not installed in place. Install the ink tank(s) in the correct position.
Warning: The ink
absorber becomes
almost full.
[1700,
1701] --- Contact the support center or service center for ink absorber
replacement. Press [OK] to
continue printing.
Replace the ink absorber, and reset its counter. [See 3-3.
Adjustment / Settings, (5) Service mode.]
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.
The connected digital
camera or digital
video camera does
not support Camera
Direct Printing.
[2001] --- The device may be
incompatible. Remove the
device and check the manual
supplied with the connected
device.
Remove the cable between the camera and the machine.
Automatic duplex
printing cannot be
performed.
[1310] --- This paper is not compatible
with duplex printing. Remove
the paper and press [OK].
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).
Failed in automatic
print head alignment. [2500] --- Auto head align has failed. Press [OK] and repeat
operation. <See manual>
Press the OK button to clear the error, then perform the
automatic print head again.
(In the MX7600, use plain paper.)
Dirty paper feed
roller. [2600] --- The transport unit may not be clean. Perform sheet cleaning.
<See manual>
When the time to perform periodic cleaning of the paper
feed rollers comes, the message is displayed for several
seconds during printing.
Ink tank not
recognized. [1684] U140 The following ink tank cannot be recognized.
(Applicable ink tank icon)
A non-supported ink tank is installed (the ink tank LED is
turned off). Install the supported ink tanks.
Ink tank not
recognized. [141#] U150 The following ink tank cannot be recognized.
(Applicable ink tank icon)
A hardware error occurred in an ink tank (the ink tank
LED is turned off). Replace the ink tank(s).
No Clear ink at all [1693] U165 The clear ink has run out.
Replace the ink tank. Replace the Clear ink tank, or press the Stop/Reset button to clear the error without replacing the Clear ink tank.
When the Stop/Reset button is pressed, printing being
performed at error occurrence is cancelled.
Without the Clear ink, the print quality on plain paper
becomes significantly low, and the paper feed mechanism
of the cassette can be damaged. For this reason, printing
on plain paper cannot be performed unless the applicable
Clear ink tank is replaced with a new one.
No Clear ink at all,
and the error cannot
be cleared.
[1694] U166 The clear ink has run out.
Replace the ink tank. If the Clear ink is completely used up when the machine is forcibly turned off, such as by disconnecting the power
cord before the machine is turned off by the ON/OFF
button, the error may not be cleared. Replace the Clear
ink tank with a new one.
No ink (no raw ink). [1688] U171 The ink has run out. Stop
printing, then
replace the ink tank.
The PGI-7BK ink is used up (the ink tank LED flashes).
Press the Stop/Reset button to stop printing, replace the
empty ink tank(s), then resume printing.
Printing with an empty ink tank can damage the machine.
To continue printing without replacing the ink tank(s),
press the Stop/Reset 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.
6 / 65

No ink (no raw ink). [1698] U172 The ink has run out. Stop
printing, then
replace the ink tank.
(Applicable ink tank icon)
The PGI-9PBK, PGI-9Y, PGI-9M, or PGI-9C ink is used
up (the applicable ink tank LED flashes). Press the
Stop/Reset button to stop printing, replace the empty ink
tank(s), then resume printing.
To prevent faulty printing such as ink mixture, the error is
indicated and printing is stopped when the remaining ink
amount in the ink tank becomes lower than the amount
required to maintain the print quality.
Unknown ink. [1689] U181 The ink has run out. Stop
printing, then
replace the ink tank.
The PGI-7BK ink is detected to be used up (the ink tank
LED flashes). Stop printing, replace the ink tank, then
resume printing. The ink tank must be replaced before
resuming printing.
An ink tank which has once been empty is installed.
Printing with a once-empty ink tank can cause faulty
printing such as improper ink mixture, or it can damage
the machine. To continue printing without replacing the
ink tank, press the Stop/Reset 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.
Unknown ink. [1699] U182 The ink has run out. Stop
printing, then
replace the ink tank.
(Applicable ink tank icon)
The PGI-9PBK, PGI-9Y, PGI-9M, or PGI-9C ink is
detected to be used up (the applicable ink tank LED
flashes). Stop printing, replace the ink tank, then resume
printing. The ink tank must be replaced before resuming
printing.
An ink tank which has once been empty is installed.
Printing with a once-empty ink tank can cause faulty
printing such as improper ink mixture, or it can damage
the machine. To continue printing without replacing the
ink tank(s), press the Stop/Reset 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.
Non-supported hub. [2002] --- An unsupported USB hub is
connected. Remove the hub. Remove the applicable USB hub from the PictBridge (USB) connector.
No paper in the
ADF,
Paper jam in the
ADF,
Non-supported length
of paper in the ADF
(too long or too
short).
--- --- 1. Press the Stop./Reset button.
2. Except the document page stuck in the ADF, remove
all the other pages from the ADF, and open the
document feeder cover.
3. Raise the lever to release the paper, and pull out the
stuck paper from under the pick-up roller to the
document feeder cover side.
4. Pull out the stuck paper from the ADF.
5. Lower the lever, and close the document feeder cover.
Document in ADF. Redo
operation after
checking document in ADF
and pressing [OK].
The document is jammed in the ADF. Remove the
jammed document, press the OK button, then perform the
operation again.
Document size is too long.
Redo operation after checking
document on ADF and
pressing [OK].
The document page is too long, or it is jammed in the
ADF. Remove the document from the ADF, and press the
OK button to clear the error. Confirm that the document
length is supported, and perform the operation again.
7 / 65

2-2. Service Call Errors (by Cyclic Blinking of Alarm and Power LEDs)
Service call errors are indicated by the number of cycles the Alarm and Power LEDs blink, and the corresponding error code is
displayed on the LCD.
Cycles of
blinking of
Alarm and
Power LEDs
Error Error
code Conditions Solution
(Replacement of listed parts,
which are likely to be faulty)
2 times Carriage error [5100] An error occurred in the carriage
encoder signal. - Carriage unit - Timing slit film
- Logic board
- Carriage motor
3 times Line feed error [6000] An error occurred in the LF encoder
signal. - Timing sensor unit - Timing slit disk film
- Feed roller
- Logic board
- Paper feed motor
4 times Purge cam sensor error [5C00] An error occurred in the purge unit. - Purge unit
- Logic board
5 times ASF (cam) sensor error [5700] This error takes place when paper feeds
from the rear tray after an error
occurred in the ASF cam sensor.
- Sheet feed unit
- ASF_PE sensor board
- Logic board
6 times Internal temperature
error [5400] The internal temperature is not normal. - Logic board
7 times Ink absorber full [5B00,
5B01] The ink absorber is supposed to be full. 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).
- Ink absorber kit
No wetting liquid [5250] The wetting liquid is used up. - Blade cleaner unit
8 times Print head temperature
rise error [5200] The print head temperature exceeded the specified value. - Print head - Logic board
Reactor error [B300] A hardware error in supply of the reactor
liquid. - Valve unit - Sheet feed unit
9 times EEPROM error [6800,
6801] A problem occurred in reading from or writing to the EEPROM.
Error codes:
6800: Read error
6801: Write error
- Logic board
10 times VH monitor error [B200] The VH output of the power supply to
drive the print head is abnormal. - Print head - Carriage unit
- Logic board
11 times Carriage lift mechanism
error [5110] The carriage did not move up or down properly. - Sheet feed unit - PR lift shaft ass'y
- Carriage lift sensor unit
- Logic board
12 times AP position error [6A00] An error occurred in the AP motor
during purging operation. - Sheet feed unit - Purge unit
- Logic board
13 times PF / RR position error [6B00,
B310] 6B00: An error occurred in the paper feed motor during line feeding. - Sheet feed unit - Logic board
8 / 65