Canon Pixma MX7600 Service Manual. Parts Catalog

0 (0)

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.

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.

Inkjet Device Quality Assurance Div. 2

451, Tsukagoshi 3-chome, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8530, Japan

MX7600

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

Adjustment	Timing	Purpose	Tool	Approx.
Adjustment	Timing	Purpose	Tool	time
				time
EEPROM	- At logic board replacement	To initialize settings	None.	1 min.
initialization			Perform in the service
			mode.
Destination	- At logic board replacement	To set destination.	None.	1 min.
settings (EEPROM			Perform in the service
settings)			mode.
Ink absorber	- At logic board replacement	To reset the ink absorber or	None.	1 min.
counter / wetting	- At ink absorber	wetting liquid counter.	Perform in the service
liquid counter	replacement*1		mode.
resetting	- At wetting liquid unit
(EEPROM	replacement*1
settings)
Ink absorber	- At logic board replacement	To set the ink amount data in	None.	1 min.
counter value		the ink absorber to the ink	Perform in the service
setting		absorber counter.	mode.
(EEPROM
settings)
Ink absorber /	- When the ink absorber	To replace the ink absorber or	Screwdriver, a pair of	20 min.
wetting liquid unit	becomes full*1	the wetting liquid unit with a	tweezers, etc.
replacement	- When the wetting liquid unit	new one.
	becomes empty*1
Paper feed motor	- At paper feed motor	To adjust the belt tension.	None.	5 min.
position	replacement	(Position the paper feed motor
adjustment		so that the belt is stretched
		tight.)

Automatic print	- At print head replacement
head alignment	- At logic board replacement
	- When print quality is not
	satisfying

To secure the dot placement accuracy.

4 sheets of plain paper. 9 min. Perform in the user

mode.

Manual print head	- At print head replacement
alignment	- At logic board replacement
	- When print quality is not
	satisfying

To secure the dot placement accuracy.

2 sheets of plain paper. 10 min. Perform in the user

mode.

Grease application	- At carriage unit replacement	To maintain sliding properties	FLOIL KG-107A	1 min.
	- At lift cam replacement	of the following items:
	- To gears	- Carriage shaft
		- Lift cam bushing
		- Machine sliding portions
		(gears)
Ink system	- At logic board replacement	To maintain detection	None.	1 min.
function check	- At spur base replacement	functionality for presence of the	Perform in the service
	- At carriage unit replacement	ink tanks and each ink tank	mode.
		position.
LCD language	- At logic board replacement	To set the language to be	None.	1 min.
settings		displayed on the LCD.	Perform in the user
		1 / 65

			mode.
LF / Eject	- At logic board replacement	To correct line feeding (LF	None.
correction	- At feed roller ass'y	roller diameter).	Perform in the service
	replacement		mode.
	- At logic board replacement	To correct line feeding (eject	None.
	- At platen unit replacement	roller diameter).	Perform in the service
			mode.

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

LAN resetting	- At protection sheet	To initialize the network setting.	None.	1 min.
	replacement		Perform in the user
			mode.
			- Machine buttons
			- Computer (IJ Network
			tool)
LAN setting	- At confirmation of the	To confirm the network setting.	None.	1 min.
information	network setting (as needed)		Perform in the user
display			mode.
			- Machine buttons
			- Computer (IJ Network
			tool)

*1: The ink absorber and wetting liquid unit should be replaced at the same time.

-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)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.

2 / 65

1-2. Customer Maintenance

Adjustment	Timing	Purpose	Tool	Approx.
Adjustment	Timing	Purpose	Tool	time
				time
Automatic print head	- At print head replacement	To ensure accurate dot	- Machine	9 min.
alignment	- When print quality is not satisfying	placement.	buttons
	(uneven printing, etc.)		- Plain paper
			- Computer
			(MP driver)
Manual print head	- At print head replacement	To ensure accurate dot	- Machine	10 min.
alignment	- When print quality is not satisfying	placement.	buttons
	(uneven printing, etc.)		- Plain paper
			- Computer
			(MP driver)
Print head cleaning	When print quality is not satisfying.	To improve nozzle	- Machine	1 min.
		conditions.	buttons
			- Computer
			(MP driver)
Print head deep	When print quality is not satisfying, and	To improve nozzle	- Machine	2 min.
cleaning	not improved by print head cleaning.	conditions.	buttons
			- Computer
			(MP driver)

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	---	1 min.
tank.

Pick-up roller cleaning	- When paper does not feed properly.	To clean the pick-up rollers	- Machine	2 min.
(Roller cleaning)	- When the front side of the paper is	of the rear tray.	buttons
	smeared.		- Computer
			(MP driver)

Rear tray sub-roller	When the paper fed from the rear tray is
cleaning	smeared due to ink mist attached to the
	rear tray sub-rollers.
Bottom plate cleaning	When the back side of the paper is
	smeared.

To clean the rear tray sub-	- Machine	1 min.
rollers.	buttons
To clean the platen ribs.	- Machine	1 min.
	buttons
	- Computer
	(MP driver)

Scanning area cleaning	When the platen glass or document
	pressure sheet is dirty.
Exterior cleaning	When necessary
Paper feed roller	When "The transport unit may not be
cleaning	clean." is displayed.
(Sheet cleaning)	Perform cleaning using the cleaning sheet.
Ink quality maintenance	One time per week (when no printing is
(automatic maintenance	performed for a week)
at default)

To clean the platen glass and	Soft, dry, and	1 min.
pressure sheet.	clean lint-free
	cloth.
To clean the machine	Soft, dry, and	1 min.
exterior.	clean lint-free
	cloth.
To clean the paper feed	- Machine	2 min.
rollers.	buttons
	- Computer
	(MP driver)
To prevent pigment	- Machine	10 sec. to
components from settling to	buttons	2 min.
the bottom, and to equalize	- Computer
ink density	(MP driver)

3 / 65

1-3. Special Tools

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.

1-4. 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)

<1. MAINTENANCE>

4 / 65

MX7600	TABLE OF CONTENTS

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)

Error

No paper in the rear tray.

No paper in the cassette.

Paper jam.

Paper jam in the rear guide (when paper feeding from the cassette).

Error

code

[1000]

[1003]

[1300]

[1303]

U No.	Message on the LCD	Solution
	Message on the LCD	Solution

---	Rear tray.	Confirm that the rear tray is selected as the paper source.
	There is no paper. Load paper	Set the paper in the rear tray, and press the OK button.
	and press [OK].
---	Cassette.	Confirm that the cassette is selected as the paper source.
	There is no paper. Load paper	Set the paper in the cassette, and press the OK button.
	and press [OK].
--- The paper is jammed. Clear		Remove the jammed paper, and press the OK button.

---the paper and press [OK].

Paper jam in the [1304] ---

under guide (during automatic duplex printing).

Ink may have run	[1600]	U041	The ink may have run out.
out.		U044	Replacing the ink tank is
			recommended.
Ink tank not installed.	[1660]	U043	The following ink tank cannot
			be recognized.
			(Applicable ink tank icon)
No Clear ink.	[1692]	U045	The clear ink tank is empty.

Print head not	[1401]	U051 Print head is not installed.
installed, or not		Install the print head.
properly installed.
Faulty print head ID.	[1401]	U052 The type of print head is
Print head	[1403]	incorrect. Install the correct
Print head	[1403]	print head.
temperature sensor		print head.
temperature sensor
error.
Faulty EEPROM data	[1405]
		5 / 65

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.

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

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.

Install the print head properly.

Re-set the print head. If the error is not cleared, the print head may be defective. Replace the print head.

of the print head.
Multiple ink tanks of	[1681] U071 More than one ink tank of the Replace the wrong ink tank(s) with the correct one(s).
the same color	following color is installed.
installed.

Ink tank in a wrong	[1680]	U072	Some ink tanks are not
position.			installed in place.
Warning: The ink	[1700,	---	Contact the support center or
absorber becomes	1701]		service center for ink absorber
almost full.			replacement. Press [OK] to
			continue printing.

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

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	[2001]	--- The device may be
camera or digital		incompatible. Remove the
video camera does		device and check the manual
not support Camera		supplied with the connected
Direct Printing.		device.
Automatic duplex	[1310]	--- This paper is not compatible
printing cannot be		with duplex printing. Remove
performed.		the paper and press [OK].

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).

Failed in automatic	[2500]	--- Auto head align has failed.	Press the OK button to clear the error, then perform the
print head alignment.		Press [OK] and repeat	automatic print head again.
		operation. <See manual>	(In the MX7600, use plain paper.)

Dirty paper feed	[2600]	--- The transport unit may not be
roller.		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	[1684]	U140	The following ink tank cannot	A non-supported ink tank is installed (the ink tank LED is
recognized.			be recognized.	turned off). Install the supported ink tanks.
			(Applicable ink tank icon)
Ink tank not	[141#]	U150	The following ink tank cannot	A hardware error occurred in an ink tank (the ink tank
recognized.			be recognized.	LED is turned off). Replace the ink tank(s).
			(Applicable ink tank icon)

No Clear ink at all	[1693] U165 The clear ink has run out.
	Replace the ink tank.

No Clear ink at all,	[1694]	U166	The clear ink has run out.
and the error cannot			Replace the ink tank.
be cleared.
No ink (no raw ink).	[1688]	U171	The ink has run out. Stop
			printing, then
			replace the ink tank.

6 / 65

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.

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.

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.

No ink (no raw ink).	[1698]	U172	The ink has run out. Stop	The PGI-9PBK, PGI-9Y, PGI-9M, or PGI-9C ink is used
			printing, then	up (the applicable ink tank LED flashes). Press the
			replace the ink tank.	Stop/Reset button to stop printing, replace the empty ink
			(Applicable ink tank icon)	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	The PGI-7BK ink is detected to be used up (the ink tank
			printing, then	LED flashes). Stop printing, replace the ink tank, then
			replace the ink tank.	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	The PGI-9PBK, PGI-9Y, PGI-9M, or PGI-9C ink is
			printing, then	detected to be used up (the applicable ink tank LED
			replace the ink tank.	flashes). Stop printing, replace the ink tank, then resume
			(Applicable ink tank icon)	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	Remove the applicable USB hub from the PictBridge
			connected. Remove the hub.	(USB) connector.
No paper in the	---	---		1. Press the Stop./Reset button.
ADF,				2. Except the document page stuck in the ADF, remove
Paper jam in the				all the other pages from the ADF, and open the
ADF,				document feeder cover.
Non-supported length				3. Raise the lever to release the paper, and pull out the
of paper in the ADF				stuck paper from under the pick-up roller to the
(too long or too				document feeder cover side.
short).				4. Pull out the stuck paper from the ADF.
				5. Lower the lever, and close the document feeder cover.
			Document in ADF. Redo	The document is jammed in the ADF. Remove the
			operation after	jammed document, press the OK button, then perform the
			checking document in ADF	operation again.
			and pressing [OK].

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		Error
Alarm and		Error
Alarm and
Power LEDs
2 times		Carriage error

Error		Conditions
code		Conditions
code

[5100] An error occurred in the carriage encoder signal.

Solution (Replacement of listed parts, which are likely to be faulty)

-Carriage unit

-Timing slit film

-Logic board

-Carriage motor

3 times	Line feed error	[6000]	An error occurred in the LF encoder	- Timing sensor unit
			signal.	- 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	- Sheet feed unit
			from the rear tray after an error	- ASF_PE sensor board
			occurred in the ASF cam sensor.	- Logic board
6 times	Internal temperature	[5400]	The internal temperature is not normal.	- Logic board
	error
7 times	Ink absorber full	[5B00,	The ink absorber is supposed to be full.	- Ink absorber kit
		5B01]	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).
	No wetting liquid	[5250]	The wetting liquid is used up.	- Blade cleaner unit
8 times	Print head temperature	[5200]	The print head temperature exceeded the	- Print head
	rise error		specified value.	- Logic board
	Reactor error	[B300]	A hardware error in supply of the reactor	- Valve unit
			liquid.	- Sheet feed unit
9 times	EEPROM error	[6800,	A problem occurred in reading from or	- Logic board
		6801]	writing to the EEPROM.
			Error codes:
			6800: Read error
			6801: Write error
10 times	VH monitor error	[B200]	The VH output of the power supply to	- Print head
			drive the print head is abnormal.	- Carriage unit
				- Logic board
11 times	Carriage lift mechanism	[5110]	The carriage did not move up or down	- Sheet feed unit
	error		properly.	- PR lift shaft ass'y
				- Carriage lift sensor unit
				- Logic board
12 times	AP position error	[6A00]	An error occurred in the AP motor	- Sheet feed unit
			during purging operation.	- Purge unit
				- Logic board
13 times	PF / RR position error	[6B00,	6B00: An error occurred in the paper	- Sheet feed unit
		B310]	feed motor during line feeding.	- Logic board
			8 / 65

B310: An error occurred in the reactor roller during rotation of the reactor motor.

14 times	Paper feed cam sensor	[6B10]	An error occurred in the paper feed cam	- Sheet feed unit
	error		sensor during paper feeding from the	- Logic board
			cassette.
15 times	USB Host VBUS	[9000]	The USB Host VBUS is overloaded.	- Logic board
	overcurrent
16 times	Pump roller sensor error	[5C20]	The pump roller position cannot be	- Purge unit
			detected.	- Logic board
17 times	Paper eject encoder error	[6010]	An error occurred in the paper eject	- Platen unit
			encoder signal.	- Timing sensor unit
				- Timing slit disk eject film
				- Paper feed motor
				- Logic board
19 times	Ink tank position sensor	[6502]	None of the ink tank position is detected. - Platen unit
	error			- Logic board
22 times	Scanner home position	[5010]	The scanner unit cannot detect the home	- Scanner unit
	error		position, or the scanner unit warming-up	- Logic board
			is not performed properly at power-on.
			On the LCD, "Scanner is not operating
			correctly." is displayed.
Power LED	ROM / RAM error	---	The check sum value is incorrect in the	- Logic board
turned off, and			ROM check or RAM check at hard-
Alarm LED lit			power-on.

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 3-3. Adjustment / Settings, (5) Service mode, for details.]

9 / 65

2-3. Fax Errors

For errors other than those listed below, please refer to the "G3 / G4 Facsimile Error Code List (Rev. 2)."

(1) User error codes

Error code	TX / RX	Meaning
#001	TX	Document jam
#003	TX / RX	Document is too long, or page time-over
#005	TX / RX	Initial identification (T0 / T1) time-over
#009	RX	Recording paper jam, or no recording paper
#012	TX	No recording paper at the receiving machine
#017	TX	Redial time-over, but no DT detected
#018	TX	Auto dialing transmission error, or redial time-over
#022	TX	Call failed (no dial registration)
#037	RX	Memory overflow at reception of an image
#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

(2) Service error codes

Error code	TX / RX	Meaning
##100	TX	Re-transmission of the procedure signal has been attempted the specified number of times, but failed.
##101	TX / RX	Sender's modem speed does not match the receiving machine.
##102	TX	Fallback is not available.
##103	RX	EOL has not been detected for 5 seconds (or 15 seconds in CBT).
##104	TX	RTN or PIN has been received.
##106	RX	The procedure signal has been expected for 6 seconds, but not received.
##107	RX	Fallback is not available at the sending machine.
##109	TX	After DCS transmission, a signal other than DIS, DTC, FTT, 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 / RX	Memory error
##114	RX	RTN has been received.
##200	RX	A carrier has not been detected for 5 seconds during image reception.
##201	TX / RX	DCN 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 / RX	System error (main program hang-up)
##224	TX / RX	An error has occurred in the procedure signal in G3 transmission.
##226	TX / RX	The stack pointer has shifted from the RAM area.
##229	RX	The recording area has been locked for 1 minute.
##232	TX	The encoder control unit has malfunctioned.
##237	RX	The decoder control unit has malfunctioned.
##238	RX	The print control unit has malfunctioned.
##261	TX / RX	A system error has occurred between the modem and the system control board.

10 / 65

##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.
##285	TX	After EOP transmission, DCN has been received.
##286	TX	After EOM transmission, DCN has been received.
##287	TX	After MPS transmission, DCN has been received.
##288	TX	After EOP transmission, a signal other than PIN, PIP, MCF, RTP, RTN has been received.
##289	TX	After EOM transmission, a signal other than PIN, PIP, MCF, RTP, RTN has been received.
##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 time-over
##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
##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.
##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.
##762	TX	After transmitting PPS-EOM in ECM transmission, DCN has been received.
##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.
		11 / 65

##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.
##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.
##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 has been received.
##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.
##791	TX / RX	During 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.

12 / 65

2-4. Other Error Messages

Message on the LCD

Device memory is full. Cannot continue process. Reduce the number of copies to scan.

There is no photo data.

Cause

The memory is not sufficient to perform the print job in copying.

Supported image files are not in the memory card.

Solution

Reduce the amount of data to be printed, or print from a computer.

A temporary error.

-Confirm that supported image files are in the memory card.

-Images with double-byte characters used in the file name (or folder name) may not be recognized. Change the file (or folder) name so that it contains only singlebyte alphanumeric characters.

-If images are edited on a computer, print them from the computer.

The value exceeds the number	During selecting images or specifying
of copies you can print.	the number of copies, the total print
	quantity exceeds the prescribed value
	of 999.

The card is currently writeenabled. Remove card and set to read-only mode before performing operation.

Failed to scan Photo Index Sheet. Check orientation/position and check that platen/sheet is clean. <See manual>

With the memory card set to the Read/write mode, Card Direct printing operation was attempted from the menu.

The machine failed in scanning the Photo Index Sheet.

Failed to scan Photo Index Sheet. Check that all items are marked correctly. <See manual>

Failed to scan. Either document cannot be scanned or is not placed on the platen glass.

Cover is open. Close cover.

The machine scanned the Photo Index Sheet, but markings in the sheet were incorrect.

The machine failed in scanning the document for Fit-to-page copy.

The cover was opened during printing.

A temporary error. The last operation before the error is cancelled, and the total print quantity returns to the value before the error.

A temporary error. Remove the memory card, change the memory card setting to Read-only, then perform Card Direct printing.

Press the OK button to clear the error. Confirm the following, then try again:

-Clean the platen glass, and confirm that the Photo Index Sheet is not smeared.

-Place the sheet in the correct orientation and position.

Press the OK button to clear the error. Confirm the following, then try again:

-Fill in all the circles on the Photo Index Sheet properly.

-Place the sheet in the correct orientation and position.

Press the OK button to clear the error. Correct the settings, then try the operation again.

Close the cover. The LCD returns to the display before the error occurrence.

Scanner is not operating	The CIS cannot detect the home
correctly.	position, or the scanner unit warming-
	up is not performed properly at power-
	on.

Press the OK button to clear the error, and turn the machine off and on again. If the error still occurs, repair servicing is required.

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

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.

Photo Index Sheet cannot be scanned from ADF.

The document is left in the ADF.

The document is too long (longer than the Legal size length) for the ADF, or the document jams in the ADF.

The paper size is not supported for scanning on both sides of paper. (Only the A4, B5, A5, and Letter sizes are supported.)

The Photo Index Sheet was attempted to be scanned from the ADF.

Remove the document from the ADF, press the OK button to clear the error, then try the operation again.

Remove the document from the ADF, and press the OK button to clear the error. Confirm that the document size is supported, then try the operation again.

Press the OK button to clear the error.

Remove the Photo Index Sheet from the ADF, and press the OK button to clear the error.

13 / 65

2-5. Warnings

Warning		Message on the LCD
Low ink		"!" is indicated for an applicable ink tank icon in
		the Status Monitor.
Print head temperature		If the print head temperature does not fall, the
rise		print head error will occur.
Protection of excess rise		If the print head temperature does not fall, the
of the print head		print head error will occur.
temperature

Solution

No special solution.

Since the ink will be used up soon, prepare for a new ink tank.

When the print head temperature falls, the error is automatically cleared.

If the print head error is indicated, repair servicing is required.

If the print head temperature exceeds the specified limit, an intermission is inserted during printing.

2-6. Troubleshooting by Symptom

	Symptom	Solution
Faulty operation	The power does not turn on.	- Confirm the connection of
	The power turns off immediately after	- the power cord, and
	power-on.	- between the logic board and the power supply unit.
		- Replace the
		- power supply unit, or
		- logic board.
	A strange noise occurs.	- Remove foreign material.
		- Attach a removed part if any.
		- Check the operation of the moving parts (such as purge
		unit, carriage unit, and paper feeding mechanism)
		- Replace a faulty part, if any.
	Nothing is displayed on the LCD.	- Confirm the connection between the operation panel, the
		LCD unit, and the logic board.
		- Replace the
		- operation panel unit, or
		- logic board.

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

-Perform the button and LCD test in the service mode, and confirm that the LCD is displayed without any segments missing or flickering.

-Confirm the connection between the operation panel, the scanning unit, and the harness.

-Replace the

-operation panel unit, or

-logic board.

Paper feed problems (multi-feeding,	- Examine the inside to confirm that no parts are damaged,
skewed feeding, no feeding).	and the rollers are clean.
	- Remove foreign material.
	- Adjust the paper guide properly.
	- Set the paper properly.
	- Confirm the following:
	- selected paper source
	- attachment of the rear cover
	- connection of each harness and the logic board
	- sheet feeder unit operation
	- Replace the
	- sheet feeder unit,
	- cassette unit, or
	- logic board.
Carriage movement problems (contact	- Confirm that the carriage timing slit strip film is free from
to other parts, strange noise).	damage or grease.
14 / 65

- Clean the carriage timing slit strip film (with ethanol and

	lint-free paper).
	- Remove foreign material.
	- Replace the
	- carriage timing slit strip film, or
	- carriage unit.
Faulty scanning (no scanning, strange	- Confirm the connection between the scanning unit and
noise).	the logic board.
	- Replace the
	- scanning unit, or
	- logic board.
No feeding from the ADF (no operation	- Confirm the connection
of the ADF motor).	- between the ADF motor and the ADF PWB, and
	- between the ADF PWB and the logic board.
	- Replace the
	- document feed unit, or
	- logic board.
No sound from the speaker.	- Confirm the connection between the speaker and the logic
	board.
	- Replace the
	- speaker, or
	- logic board.

Unsatisfactory print quality No printing, or no color ejected.

Printing is faint, or white lines appear on printouts even after print head cleaning.

Line(s) not included in the print data appears on printouts.

Paper gets smeared.

-Confirm that the orange tape is properly removed from an ink tank, and the ink tanks are installed properly.

-Perform print head maintenance.

-Replace the

-ink tank, or

-print head*1.

-Remove foreign material from the purge unit caps, if any.

-Replace the

-purge unit, or

-logic board.

-Remove and re-install the print head.

-Confirm that the ink tanks are installed properly.

-Perform print head maintenance.

-Replace the

-ink tank, or

-print head*1.

-Perform the following:

-Automatic or manual print head alignment in the user mode

-LF / Eject correction in the service mode

-Clean the pick-up rollers.

-Replace the

-purge unit, or

-logic board.

-Feed several sheets of paper.

-Perform bottom plate cleaning.

-Clean the paper path with a cotton swab or cloth.

-Clean the pick-up rollers.

The back side of paper gets smeared.	- Clean the platen rib (clean the paper path with a cotton
	swab or cloth).
	- Confirm that the platen ink absorber fits in place
	properly.
	- Confirm that the paper eject rollers are free from ink
	smear.
A part of a line is missing on printouts.	- Perform nozzle check pattern printing, and confirm that
	ink is properly ejected from all the nozzles.

15 / 65

		- Replace the
		- ink tank, or
		- print head*1.
	Color hue is incorrect.	- Confirm that the ink tanks are installed properly.
		- Perform print head maintenance.
		- Replace the
		- ink tank, or
		- print head*1
		- Perform print head alignment.
	Printing is incorrect.	Replace the logic board.
	No ejection of black ink.	- Confirm that the ink tanks are installed properly.
		- Perform print head maintenance.
		- Replace the
		- ink tank, or
		- print head*1.
		- Remove foreign material from the purge unit caps, if any.
		- Replace the purge unit.
	Graphic or text is enlarged on printouts. When enlarged in the carriage movement direction:
		- Clean grease or oil off the timing slit strip film.
		- Replace the
		- timing slit strip film,
		- carriage unit,
		- logic board, or
		- scanning unit (when copying)
		When enlarged in the paper feed direction:
		- Clean grease or oil off the timing slit disk film or the
		timing slit disk eject film.
		- Replace the
		- timing slit disk film,
		- timing slit disk eject film,
		- timing sensor unit,
		- LF roller,
		- platen unit,
		- logic board, or
		- scanning unit (when copying)
Faulty scanning	No scanning.	- Confirm the connection between the scanning unit and
		the logic board.
		- Replace the
		- scanning unit, or
		- logic board.
		- Confirm that the MP drivers are installed properly.
		- Confirm that the USB cable is connected properly.
	Streaks or smears on the scanned	- Clean the platen glass.
	image.	- Confirm the connection between the scanning unit and
		the logic board.
		- Replace the
		- scanning unit,
		- logic board, or
		- document pressure sheet.
	The document slips over the rollers (a	- Clean the
	copied image is enlarged as a result), or	- friction tab,
	document sheets are not separated from	- document pick-up rollers, and
	each other.	- separation rollers.
		- Replace the document feed unit.

*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>

16 / 65

MX7600	TABLE OF CONTENTS

3. REPAIR

3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)

Service part

Logic board ass'y

Absorber kit

Notes on replacement*1

-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).

[See 3-4. Verification Items, (1) Service test print for details.]

Adjustment / settings

After replacement:

1.Initialize the EEPROM.

2.Set the ink absorber counter value.

3.Set the destination in the EEPROM.

4.Perform service test print*2.

5.Check the ink system

function.

6.Perform LF / Eject correction.

7.Perform button and LCD test. [See 3-3. Adjustment / Settings, (5) Service mode, for details of 1 to 7.]

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

After replacement:

1.Reset the ink absorber counter.

[See 3-3. Adjustment / Settings, (5) Service mode, for details.]

Carriage unit	At replacement:
	1.	Apply grease to the sliding
		portions.
		[See 3-3. Adjustment /
		Settings, (2) Grease
		application.]
	2.	Check the ink system
		function.
		[See 3-3. Adjustment /
		Settings, (5) Service mode,
		for details.]
	3.	Perform print head alignment
		in the user mode.

Operation check

-EEPROM information print

-Service test print

-Printing via USB connection

-Copying

-Direct printing from a digital camera (PictBridge)

-FAX sending and receiving

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

-Service test print

-Service test print (Confirm automatic print head alignment sensor correction, and ink system function.)

Paper feed motor	- The red 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.)
Sheet feeder unit	- After replacement, be sure to
	confirm that the reactor liquid
	is circulated and supplied
	properly.
	- Confirm that the tubes are
	securely connected (to prevent
	leakage of Clear ink).

At replacement:

- Service test print

1.Adjust the paper feed motor. [See 3-3. Adjustment / Settings, (1) Paper feed motor adjustment, for details.]

After replacement:	- Service test print
1. Perform service test print*2.

Valve unit	- After replacement, confirm that	After replacement:	- Service test print
	the sensors to detect the reactor	1. Perform service test print*2.
	level (high / low) inside the
		17 / 65

Platen unit

PR lift shaft ass'y

Input carriage lift gear

Operation panel unit LCD unit

Scanner unit Timing slit strip film

Timing slit disk film

Timing slit disk eject film

Print head

*1: General notes:

buffer tank operate properly.

-Confirm that the tubes are securely connected (to prevent leakage of Clear ink).

After replacement:

- Service test print

1.Check the ink system function.

2.Perform LF / Eject correction in the service mode.

[See 3-3. Adjustment / Settings, (5) Service mode, for details.]

At replacement:

- Service test print

1.Apply grease to the sliding portions.

[See 3-3. Adjustment / Settings, (2) Grease application, for details.]

- Be cautious not to scratch or	At replacement:		- Service test print
damage the LCD hinge FFC.	1.	Perform button and LCD test.
		[See 3-3. Adjustment /
		Settings, (5) Service mode,
		for details.]
- Upon contact with the film,	After replacement:		- Service test print
wipe the film with ethanol.	1.	Perform print head alignment
- Confirm no grease is on the		in the user mode.
film. (Wipe off any grease	2.	Perform LF / Eject correction
thoroughly with ethanol.)		in the service mode.
- Do not bend the film		[See 3-3. Adjustment /
		Settings, (5) Service mode,
		for details.]
	After replacement:		- Service test print
	1.	Perform print head alignment
		in the user mode.

-Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly. See 3-2. Special Notes on Repair Servicing 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 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 red screws of the paper feed motor may be loosened only at replacement of the paper feed motor unit (DO NOT loosen them in other cases).

ii.DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft positioning

(they are not adjustable in servicing)

18 / 65

*2: Service test print must be performed in every repair servicing

-Feed paper from the cassette.

-When the service test print is attempted, the reactor liquid is automatically supplied prior to print the test pattern, in order to examine whether the reactor liquid level sensors (high / low) inside the buffer tank operate properly.

-If either of the level sensors does not detect presence of the reactor liquid (or neither of them detect presence of the reactor liquid), it is considered that there is something wrong with the sensor, and the service test print is not performed (no error indication).

-If the service test print is not performed, "no clear ink" or "faulty sensor inside the valve unit" is suspected. Replace the clear ink tank or the valve unit. If the machine continues to be used with a faulty sensor in the valve unit, excessive clear ink can be supplied, causing leakage of the clear ink.

-When both of the sensors detect presence of the reactor liquid, the service test print is performed, then the reactor information of the EEPROM is automatically initialized after the service test print.

A lithium battery is installed in the MX7600. Please be cautious of the following:

-At repair:Risk of explosion if battery is replaced by an incorrect type. Explosionsrisiko, falls Batterie nicht mit vorgeschriebenem Baterrietypus ersetzt wird.

-At disposal:Dispose of used batteries according to the local regulations. Batterienentsorgung gemaess lokalen Vorschriften.

When the Service Manual issued by CINC is localized, be sure to include the above cautions (at repair and disposal) in German.

Included battery contains Perchlorate Material-special handling may apply.

See http://www.dtsc.ca.gov/hazardouswaste/perchlorate/ for detail.

<3-1. Notes on Service Part Replacement>

19 / 65

MX7600 --- 3. REPAIR	TABLE OF CONTENTS

3-2. Special Notes on Repair Servicing

(You can enlarge the images by clicking them when the mouse pointer becomes the finger icon.)

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

****************************************************************************************************

If the power cord is disconnected from the machine (a hard-power-off),

all the documents saved in the machine memory will be lost (though the date and time set on the machine are maintained).

*****************************************************************************************************

(1)External housing, ADF, and scanner unit removal

1)Remove the cassette, LAN connector cover, and telephone jack cover.

2)Remove the side covers L and R.

i.Remove 4 screws from the rear cover, and 1 screw each from the front left and front right.

ii. Release the hooks inside the cover.

20 / 65

iii. Release the boss on the front right and front left (beside the removed screws).

iv. Release the hooks on both sides of the rear tray.

21 / 65

3)Remove the front covers L and R.

i.Release one screw each from the top of the left and right front covers.

ii. Release the bosses on the top of the front covers.

22 / 65

4)Remove the ADF unit, scanner unit, and main case all together.

i.Unlock the clear ink tank locking cover.

ii. Disconnect 4 connectors, and remove 3 screws.

iii. Remove 4 screws on the right side (2 each on the outer and inner sides of the machine), and disconnect 1 connector.

Use a short screwdriver to remove the screws from the inside of the machine. If a short screwdriver is not available, disengage the damper and open the scanning unit full while referring to step 6), "Remove the scanner unit."

23 / 65

Canon Pixma MX7600 Service Manual. Parts Catalog

iv. Remove 3 screws on the left side (1 each on the side, upper front, and upper back), and disconnect the connector.

v. Release the hooks, and insert a screwdriver between the gap so that the main case will not fall.

vi. Release the hook on the other side, and pull up the entire main case.

< With the main case removed >

24 / 65

5) Remove the ADF unit. (The ADF unit can be removed without removing the main case.)

i.Disengage the right hinge (while slightly pushing the hinge to the right, pull up the document cover).

ii. Disengage the left hinge (slowly lay back the document cover).

6) Remove the scanner unit. (The scanner unit can be removed without removing the main case.)

i.Remove 2 screws from the damper gear and 1 screw from the scanner lock.

ii. Disengage the damper gear and the scanner lock, while pushing them toward the arrow direction.

iii. While holding the scanner unit in the opened position, disengage the right hinge by slightly pushing the hinge to the right and pulling up the scanner unit.

iv. Disengage the left hinge by sliding the scanner unit to the left.

25 / 65

(2)Printer unit separation from the bottom case (how to remove the screw under the purge unit)

1)Rotate the purge unit gear toward the rear side of the machine to unlock the carriage.

2) Slide the carriage to the opposite of the home position (to the left), and remove the blade cleaner unit (2 screws).

3) Remove the screw under the blade cleaner unit.

26 / 65

(3)Operation panel removal

1)Remove the panel cover.

Using a flat-blade screwdriver, release the front side of the panel cover.

While slightly lifting up the cover, pull it toward you.

2) Remove the panel unit.

Remove the 6 screws that fix the panel unit to the scanner unit. Pull the panel unit toward you, then disconnect the connector and the ground wire (1 screw).

3) Remove the panel board.

Remove the 14 screws and disconnect the connector.

Caution: DO NOT turn over the panel frame after the panel board is removed. The buttons are not fixed to the frame, thus they will fall if the frame is turned over.

27 / 65

(4)AC adapter removal

1)Remove the side cover L.

2)Remove the AC adapter (2 screws on the side, 1 screw on the top).

Special notes on attaching the AC adapter:

< Japan model >

Insert and push the arrester ground wire in the hole until it fits to the arrester ground pin inside the AC adapter.

After connection, gently pull the ground wire and confirm that it will not be removed.

< Other models>

Fit the arrester ground wire in 2 grooves as shown in the photo.

28 / 65

+ 77 hidden pages