Canon Pixma MG6120 Service Manual

PIXMA MG6120

SERVICE

MANUAL

Canon

Copyright © 2010, Canon U.S.A. This technical publication is the proprietary and confidential information of Canon U.S.A. which shall be retained for reference purposes by Authorized Service Facilities of Canon U.S.A. Its unauthorized use is prohibited.

MG6100 series

INTRODUCTION

[ How to use this Service Manual ]

This manual is intended to solve printer problems smoothly, with each section representing the typical service procedures, as shown below.

Troubleshooting

Repair

Adjustment &

Settings

Verification

Identify the problem, and handle it accordingly.

When a part needs to be replaced, see this section.

After repair, perform the necessary adjustment and settings.

At the end of the servicing, verify the machine following the inspection flow in this section.

Appendix

Information that will be necessary for maintenance and repair of the machine

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

<INTRODUCTION>

MG6100 series

TABLE OF CONTENTS

1.TROUBLESHOOTING

1-1. Troubleshooting by Symptom

1-2. Operator Call Error Troubleshooting

1-3. Service Call Error Troubleshooting

2.REPAIR

2-1. Major Replacement Parts and Adjustment

2-2. Part Replacement Procedures

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

(2)Operation panel removal

(3)Document window R removal

(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

(9)Engine unit reassembly

(10)Cable wiring and connection

(11)Ink absorber replacement

3.ADJUSTMENT / SETTINGS

3-1. Adjustment

3-2. Adjustment and Maintenance in User Mode

3-3. Adjustment and Settings in 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

(6)N/A

(7)Capacitive sensor sensitivity setting

3-4. Grease Application

3-5. Special Notes on Servicing

(1)For smeared printing, uneven printing, or non-ejection of ink

(2)Paper feed motor adjustment

(3)Carriage unit replacement

(4)Document pressure sheet (sponge sheet) replacement

(5)Ink absorber counter setting

(6)Preventive replacement of ink absorber

4.VERIFICATION AFTER REPAIR

4-1. Standard Inspection Flow

4-2. Integrated Inspection Pattern Print

4-3. Ink Absorber Counter Value Print

5.APPENDIX

5-1. Customer Maintenance

5-2. Special Tools

5-3. Sensors

5-4. Serial Number Location

6.MACHINE TRANSPORTATION

<TABLE OF CONTENTS>

MG6100 series	TABLE OF CONTENTS

1. TROUBLESHOOTING

1-1. Troubleshooting by Symptom

		Symptom
Faulty operation		The power does not turn on.
		The power turns off
		immediately after power-on.

A strange noise occurs.

The LCD does not display properly.

A portion of the LCD is not displayed.

The display flickers.

Paper feed problems (multifeeding, skewed feeding, no feeding).

Solution

(1) Confirm cable connection:

-DC harness ass'y

-Power switch harness ass'y

=> No incomplete connection, cable breakage, or cable caught in units

(2) Replace the following item(s):

-Logic board ass'y

-AC adapter

-Power switch harness ass'y

-Document top cover unit

(1)Examine and remove any foreign material from the drive portions.

(2)Replace the following item(s):

-The part generating the strange noise

-Logic board ass'y

(1) Confirm cable connection:

-LCD FFC

-Panel FFC

=> No incomplete connection, cable breakage, or cable caught in units

(2) Replace the following item(s):

-LCD viewer unit

-Panel cable

-Document top cover unit

-Logic board ass'y

(1) Examine and remove any foreign material from the following parts:

-ASF unit

-PE sensor

-Paper guide unit

-Pressure roller unit

-Spur unit

(2)Confirm that the paper guides are set properly.

(3)Confirm the PF rear cover and the cassette conditions.

(4)Confirm cable connection:

-PE sensor cable

-Paper feed relay harness ass'y

=> No incomplete connection, cable breakage, or cable caught in units

(5) Replace the following item(s):

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

- Pick-up arm unit (for paper feeding error

	from the cassette)
	- PE sensor board ass'y
	- Pressure roller unit
	- PE sensor cable
	- Cassette unit
Faulty scanning (no scanning,	(1) Confirm cable connection:
strange noise).	- Scanner motor relay harness ass'y
	- CIS cable
	=> No incomplete connection, cable
	breakage, or cable caught in units
	(2) Replace the following item(s):
	- Scanner unit
	- Logic board ass'y

Unsatisfactory print quality No printing, or no color ejected.	See 3-5. Special Notes on Servicing, (1)For
Faint printing, or white lines on	smeared printing, uneven printing, or non-
printouts.	ejection of ink, for details.
Uneven printing.	(1) Confirm the ink tank conditions:
Improper color hue.	- No remainder of the outer film (the air-
		through must be opened)
	- Re-setting of an ink tank
	- Whether the ink tank is Canon-genuine
		one or not
	- Whether the ink tank is refilled one or not
	(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*1, and ink tanks
	- Logic board ass'y
	- Purge drive system unit
Paper gets smeared.	(1) Clean the inside of the machine.
	(2)	Perform bottom plate cleaning.
	(3)	Perform paper feed roller cleaning.
	(4)	Replace the following item(s):
	- Pressure roller unit (if smearing is heavy)
	- Print head*1 (when smearing is caused by

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The back side of paper gets smeared.

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

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

Faulty scanning

No scanning.

Streaks or smears on the scanned image.

Network connection problem No printing.

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the print head)

(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

(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 strip film

-Carriage unit

-Logic board ass'y

-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):

-Timing slit disk feed film, or timing slit disk eject film

-Timing sensor unit

-Platen unit

-Logic board ass'y

-Scanner unit (for copying)

(1)Confirm cable connection (CIS cable).

(2)Replace the following item(s):

-Scanner unit

-Logic board ass'y

(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 ass'y

(1) Examine if printing is performed properly via USB connection.

(2) Confirm the network connection.

(3) Replace the following item(s): - Logic board ass'y

- Wireless LAN board ass'y

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

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

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 printer 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 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 button: To cancel the job at error occurrence, and to clear the error.

		Error		U		Message on the				Parts that
Error		code		No.				Solution		are likely
						LCD				to be
										faulty

No paper in the	[1000]	--- Rear tray.
rear tray.		There is no paper.
		Load paper and press
		[OK].

Confirm that the rear tray is	- PE sensor
selected as the paper source. Set	board
the paper in the rear tray, and	ass'y
press the OK button.	- ASF unit
If the error is not cleared, confirm	- Pressure
that no foreign material is inside	roller
the paper feed slot.	unit

No paper in the

[1003]

--- Cassette.

Confirm that the cassette is

- Pick-up

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cassette.

Paper jam.	[1300]
Paper jam in the	[1303]
rear guide.
Paper jam in the	[1304]
under guide.
Ink may have run	[1600]
out.

Ink tank not	[1660]
installed.

Print head not	[1401]
installed, or not
properly
installed.
Faulty print head
ID.
Print head	[1403]
temperature
sensor error.
Faulty EEPROM	[1405]
data of the print
head.
Inner cover error	[1841],
	[1846]

There is no paper.	selected as the paper source. Set	arm unit
Load paper and press	the paper in the cassette, and press	- Pressure
[OK].	the OK button.	roller
	Note that the cassette is for plain	unit
	paper only.	- Cassette
		unit

---The paper is jammed. Clear the paper and

press [OK].

---

---

Remove the jammed paper and	- Pick-up
press the OK button.	arm unit
For paper jam in the rear guide,	- ASF unit
confirm that the rear guide is not	- Pressure
dislocated.	roller
	unit
	- Cassette
	unit
	- Rear
	guide
	unit

U041 The ink may have run out. Replacing the ink tank is recommended.

U043 The following ink tank cannot be recognized. (Applicable ink tank icon)

Replace the applicable ink tank,	- Spur unit
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)	- Ink tank
properly, and confirm that the	- Carriage
LED's of all the ink tanks light	unit
red.

U051	Print head is not	Install the print head properly.	- Print
	installed. Install the	If the error is not cleared, confirm	head
	print head.	that the print head contact pins of	- Carriage
		the carriage are not bent.	unit
U052	The type of print head	Re-set the print head. If the error	- Print
	is incorrect. Install	is not cleared, the print head may	head
	the correct print head.	be defective. Replace the print	- Carriage
		head. If the error still persists,	unit
		confirm that the print head contact
		pins of the carriage are not bent.

--- Inner cover is open.	Close the inner cover, and press	- Spur unit
close the inner cover	the OK button.	- Inner
and press [OK].	If the error is not cleared, examine	cover
	that the inner cover sensor is	unit
	properly installed.

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Multiple ink tanks	[1487]	U071	More than one ink
of the same color			tank of the following
installed.			color is installed.
Ink tank in a	[1680]	U072	Some ink tanks are
wrong position.			not installed in place.
Warning: The ink	[1700]	---	The ink absorber is
absorber becomes			almost full. Press
almost full.			[OK] to continue
			printing. Contact the
			service center for
			replacement.

Replace the wrong ink tank(s)	- Ink tank
with the correct one(s).
Install the ink tank(s) in the	- Ink tank
correct position.
Replace the ink absorber, and	- Absorber
reset its counter. [See 3-3,	kit
Adjustment and Settings in
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	[2001]	--- Incompatible device	Remove the cable between the
digital camera or		detected. Remove the	camera and the machine.
digital video		device.
camera does not
support Camera
Direct Printing.

Automatic two-	[1310]	--- This paper is not
sided printing		compatible with two-
cannot be		sided printing.
performed.		Remove the paper
		and press [OK].

The paper length is not supported	- Duplex
for two-sided printing.	paper
Press the OK button to eject the	feed
paper being used at error	roller
occurrence.	unit
Data which was to be printed on	- PE sensor
the back side of paper at error	board
occurrence is skipped (not	ass'y
printed).

Failed in	[2500]	--- Auto head align has
automatic print		failed. Press [OK]
head alignment.		and repeat operation.
		<See manual>

Press the OK button to clear the	- Carriage
error, then perform the automatic	unit
print head alignment again. (Use	- Print
Matte Photo Paper MP-101.)	head

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				If the alignment pattern was not	- Purge
				printed properly (faint printing,	drive
				etc.), perform print head cleaning,	system
				then perform the print head	unit
				alignment again.
The remaining ink	[1683]	U130	(Applicable ink tank	An ink tank which has once been	- Ink tank
amount unknown			icon)	empty is installed. Replace the	- Spur unit
(raw ink present).			The remaining level	applicable ink tank with a new
			of the ink cannot be	one. Printing with a once-empty
			correctly detected.	ink tank can damage the machine.
			Replace the ink tank.
				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.
Ink tank not	[1684]	U140	The following ink	A non-supported ink tank is	- Ink tank
recognized.			tank cannot be	installed (the ink tank LED is
			recognized.	turned off). Install the supported
			(Applicable ink tank	ink tanks.
			icon)
Ink tank not	[1682]	U150	The following ink	A hardware error occurred in an	- Ink tank
recognized.			tank cannot be	ink tank (the ink tank LED is
			recognized.	turned off). Replace the ink tank
			(Applicable ink tank	(s).
			icon)

No ink (no raw	[1688] U163 The ink has run out.
ink).	Replace the ink tank.
	(Applicable ink tank
	icon)

Replace the empty ink tank(s),	- Ink tank
and close the scanning unit	- Spur 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.

Non-supported	[2002]	---	An unsupported USB
hub.			hub is connected.
			Remove the hub.
Time-out for the	[2700]	---	Timeout error has

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

The buffer became full in the

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scanner device.		occurred. Press [OK].	middle of scanning operation, and
			60 minutes have elapsed since
			then, making re-scanning
			unstable. Press the OK button to
			clear the error.
Premium	[4100]	--- Cannot print the data.	Install the supported (Canon-	- Ink tank
Contents print			genuine) ink tanks.
error.

1-3. Service Call Error (by Cyclic Blinking of Alarm and Power LEDs) Troubleshooting

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.

1)Check each point in "Check points & Solution," and perform the solution if it applies.

2)When no solution in "Check points & Solution" is effective, then replace the part listed under "Parts to be replaced" one by one from the one most likely to be faulty. The parts are listed in the order of likeliness to be faulty.

Cycles of				Error
blinking of		Error
Alarm and				code
Power LEDs
2 times		Carriage error [5100]

3 times

Line feed error [6000]

Check points & Solution

(1)Smearing or scratches on the carriage slit film:

Clean the film using lint-free paper.

(2)Foreign material that obstructs the carriage movement:

Remove foreign material.

(3)Ink tank conditions:

Re-set the ink tanks.

(4) Cable connection:

-CR FFC (CN401, CN402, CN403)

-Motor multi harness ass'y

Re-connect the cables.

If any damage or breakage of the cable is found, replace the cable.

(5)Scratches or damages to the carriage slit film:

Replace the timing slit strip film.

(6)Black debris around the carriage rail or pressure roller:

Replace the carriage unit.

Parts to be replaced (when no solution is effective)

-Logic board ass'y

-Carriage motor

-Carriage unit

-Motor multi harness ass'y

(1) Opening and closing of the paper output	- Timing slit disk
tray:	feed film
Remove obstacles from around the	- Timing slit disk
paper output tray so that the tray	eject film

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				opens and closes properly.	- Timing sensor
			(2)	Smearing or scratches on the LF / EJ slit	unit
				film:	- Paper feed roller
				Clean the LF / EJ slit film using lint-	unit
				free paper.	- Logic board
			(3)	Foreign material in the LF drive:	ass'y
				Remove foreign material.	- Paper feed
			(4)	Cable connection:	motor
			- LF encoder cable
			- PE sensor cable
			- Paper feed relay harness ass'y
			- Paper feed motor harness ass'y
				Re-connect the cables.
				If any damage or breakage of the
				cable is found, replace the cable.
			(5)	LF lock arm spring:
				Attach the spring properly.
4 times	Purge cam	[5C00]	(1)	Foreign material around the purge drive	- Purge drive
	sensor error			system unit:	system unit
				Remove foreign material.	- Logic board
			(2)	Cable connection:	ass'y
			- Valve cam harness (CN700)
				Re-connect the cable.
			(3)	Strange sound at power-on:
				Replace the purge drive system unit.
5 times	ASF (cam)	[5700]	(1)	Cable connection:	- ASF unit
	sensor error		- PE sensor cable		- PE sensor board
				Re-connect the cable.	ass'y
				If any damage or breakage of the	- Logic board
				cable is found, replace the cable.	ass'y
6 times	Internal	[5400]	(1)	Cable connection:	- Spur unit
	temperature		- Ink absorber multi harness (CN701)		- Logic board
	error			Re-connect the cable.	ass'y
				If any damage or breakage of the	- Print head
				cable is found, replace the spur unit.
7 times	Ink absorber	[5B00]	(1)	Ink absorber condition:
	full	[5B01]		Replace the ink absorber, and reset
				the ink absorber counter value in the
				EEPROM.
8 times	Print head	[5200]	(1)	Print head condition (face surface and	- Print head
	temperature rise			mold):	- Logic board
	error			If a burn mark or heat deformation is	ass'y
				seen on the face surface or the mold,	- Carriage unit
				replace the print head.
			(2)	Head contact pin condition of the carriage
				unit:
				If the pin is bent or deformed, replace
				the carriage unit.

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(3) Cable connection:

			- CR FFC (CN401, CN402, CN403)
			Re-connect the cable.
			If any damage or breakage of the
			cable is found, replace the carriage
			unit.
9 times	EEPROM error	[6800]	(1) Part replacement:
		[6801]	Replace the logic board ass'y.
10 times	VH monitor	[B200]	(1) Print head condition (face surface and	- AC adapter
	error		mold):	- Carriage unit
			If a burn mark or heat deformation is

seen on the face surface or the mold, replace the print head and the logic board in set. (Be sure to replace them at the same time.)

(2)Burn mark or heat deformation of the logic board:

If a burn mark or heat deformation is seen on the logic board, replace the print head and the logic board in set. (Be sure to replace them at the same time.)

(3)Head contact pin condition of the carriage unit:

If the pin is bent or deformed, replace the carriage unit.

(4)Cable connection:

- CR FFC (CN401, CN402, CN403) Re-connect the cable.

If any damage or breakage of the cable is found, replace the carriage unit.

11 times	Carriage lift	[5110]
	mechanism
	error
12 times	APP position	[6A80]
	error

APP position

[6A81]

error during initial purging

(1)	Foreign material that obstructs the	- Switch system
	carriage movement:	unit
	Remove foreign material.	- Carriage unit
(1)	Cap absorber and wiper blade:	- Timing slit disk
	If the cap absorber contacts the wiper	APP film
	blade, lower the cap absorber so that	- PE sensor board
	it will not contact the wiper blade.	ass'y
(2)	Foreign material around the purge drive	- Purge drive
	system unit:	system unit
	Remove foreign material.	- Logic board
(3)	Ink absorber right beneath the purge drive	ass'y
	system unit:
	Confirm that the absorber stays in
	place and does not contact the unit.
(4)	Foreign material around the ASF unit:
	Remove foreign material.

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14 times	APP sensor	[6A90] (5) APP slit film condition:
	error			Clean the APP slit film using lint-free
				paper.
			(6)	APP code wheel gear condition:
				If the gear wears, replace the gear.
			(7)	Cable connection:
			- PE sensor cable
			- Motor multi harness ass'y
				Re-connect the cables.
				If any damage or breakage of the
				cable is found, replace the cable.
	Paper feed cam	[6B10] (1) Ink absorber counter value:			- Pick-up arm
	sensor error			If the value exceeds 60%, replace the	unit
				ink absorber. Follow the "Guideline	- Duplex paper
				for Preventive Replacement of the Ink	feed roller unit
				Absorber."
			(2)	Jammed paper or foreign material in the
				under guide:
				Remove the jammed paper and
				foreign material.
15 times	USB host Vbus	[9000]	(1)	Part replacement:
	overcurrent			Replace the logic board ass'y.
16 times	Pump roller	[5C20]	(1)	Cable connection:	- Purge drive
	sensor error		- Valve cam harness (CN700)		system unit
				Re-connect the cable.
17 times	Paper eject	[6010] (1) Smearing on the LF / EJ slit film:			- Timing sensor
	encoder error			Clean the LF / EJ slit film using lint-	unit
				free paper.	- Platen unit
			(2)	Foreign material in the paper path:	- Logic board
				Remove foreign material.	ass'y
			(3)	Cable connection:	- Paper feed
			- LF encoder cable		motor
			- PE sensor cable
				Re-connect the cable.
				If any damage or breakage of the
				cable is found, replace the cable.
			(4)	Scratches on the LF / EJ slit film:
				Replace the timing slit disk feed film
				or the timing slit disk eject film.
19 times	Ink tank	[6502] (1) Ink tank position:			- Spur unit
	position sensor			Confirm the ink tank position.	- Logic board
	error		(2)	Re-set or replacement of ink tanks:	ass'y
				If the error persists, replace the ink
				tanks.
			(3)	Cable connection:
			- Ink absorber multi harness (CN701)
				Re-connect the cable.
20 times	Other errors	[6500]	(1)	Cable connection:	- Logic board

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			- Wireless LAN cable		ass'y
				Re-connect the cable.	- Wireless LAN
				If any damage or breakage of the	board ass'y
				cable is found, replace the cable.
21 times	Drive switch	[C000]	(1)	Foreign material in the drive switch area	- Purge drive
	error			of the purge drive system unit:	system unit
				Remove foreign material.	- ASF unit
			(2)	Ink tank conditions:	- Carriage unit
				Confirm that the ink tanks are seated
				properly and they do not interfere
				with the carriage movement.
22 times	Scanner error	[5011]	(1)	Cable connection:	- Scanner unit
			- CIS FFC (CN1100)		- Logic board
			- Lamp harness ass'y		ass'y
			- Scanner motor relay harness ass'y		- Scanner motor
				Re-connect the cables.	relay harness
			(2)	Document pressure sheet conditions:	- Lamp harness
				Re-attach the document pressure	ass'y
				sheet, or replace it.
	FB motor error	[5012]	(1)	Cable connection:	- Scanner unit
			- FB motor harness (CN902)
				Re-connect the cables.
	Scanner electric	[5050]	(1)	Cable connection:	- Scanner unit
	circuit error		- CIS FFC (CN1100)
			- Lamp harness ass'y
			- Scanner motor relay harness ass'y
				Re-connect the cables.
23 times	Valve cam	[6C10]	(1)	Foreign material around the purge drive	- Purge drive
	sensor error			system unit:	system unit
				Remove foreign material.	- Logic board
			(2)	Cable connection:	ass'y
			- Valve cam harness (CN700)
				Re-connect the cable.

Before replacement of the logic board, check the ink absorber counter value, and register it to the replaced new logic board. (The value can be set in 10% increments.) In addition, according to the "Guideline for Preventive Replacement of Ink Absorber," replace the ink absorber. [See 3. ADJUSTMENT / SETTINGS, 3-3. Adjustment and Settings in Service Mode, for details.]

<1. TROUBLESHOOTING>

12 / 66

MG6100 series	TABLE OF CONTENTS

2. REPAIR

2-1. Major Replacement Parts and Adjustment

Service part

Logic board ass'y

Absorber kit

Carriage unit

Recommended removal procedure*1 / Notes on			Adjustment / settings / operation
	replacement			check
(1)	Cassette unit		In the service mode:
(2)	Left and right side covers	1.		Set the ink absorber counter
(3)	Document pressure plate unit			value.
(4)	Scanner unit	2.		Set the destination.
(5)	Main case	3.		Print the integrated inspection
(6)	Rear cover			pattern.
(7)	Logic board ass'y	4.		Perform LF / Eject correction
- Before replacement, check the ink absorber counter				(only when streaks or uneven
				printing occurs).
value (by service test print or EEPROM		5.		Set the sensitivity of the
information print).				capacitive sensors.
- Before removal of the logic board ass'y, remove the				[See 3-3. Adjustment and
power cord, and allow for approx. 1 minute (for				Settings in Service Mode, (7)
discharge of capacitor's accumulated charges), to				Capacitive sensor sensitivity
prevent damages to the logic board ass'y.				setting, for details.]
		6.		Print the EEPROM information.
				[See 3-3. Adjustment and
				Settings in Service Mode, for
				details.]
			In the user mode:
		7.		Set the language displayed on the
				LCD.
		8.		Reset the LAN settings.
		9.		Perform print head alignment.
			10. Print via USB connection.
			11. Copy.
			12. Perform direct printing from a
				digital camera (PictBridge).
(1)	Cassette unit		In the service mode:
(2)	Left and right side covers	1.		Reset the ink absorber counter.
(3)	Document pressure plate unit			[See 3-3. Adjustment and
(4)	Scanner unit			Settings in Service Mode, for
(5)	Main case			details.]
(6)	Rear cover			After the ink absorber counter is
(7)	Print unit			reset, the counter value is printed
(8)	Ink absorber			automatically.

-See 2-2. Part Replacement Procedures, (11) Ink absorber replacement, for details.

(1)	Cassette unit	1. Apply grease to the sliding
(2)	Left and right side covers	portions of the carriage rail.

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(3)	Document pressure plate unit	[See 3-4. Grease Application, for
(4)	Scanner unit	details.]
(5)	Main case
(6)	Rear cover	In the service mode:
(7)	Timing slit strap	2. Print the integrated inspection
- Before removal of the carriage rail, put a mark of the		pattern.
carriage rail position.		[See 3-3. Adjustment and
(8)	Carriage rail	Settings in Service Mode, for
(9)	Carriage unit	details.]

In the user mode:

-Keep the timing slit strap (carriage encoder film) free from stain or damage. When returning the strap, make sure of its orientation (left and right, front and back).

-See 2-2. Part Replacement Procedures, (6) Carriage unit removal, for details.

3.Perform automatic print head alignment.

Switch system	(1)	Cassette unit	1.	Adjust the paper feed motor.
unit	(2)	Left and right side covers		[See 3-5. Special Notes on
	(3)	Document pressure plate unit		Servicing, (2) Paper feed motor
	(4)	Scanner unit		adjustment, for details.]
	(5)	Main case
	(6)	Rear cover	In the service mode:
	(7)	Print unit	2.	Print the integrated inspection
	(8)	See 2-2. Part Replacement Procedures.		pattern.

Paper feed	- The screws securing the paper feed motor are
motor	allowed to be loosened only for paper feed motor
	replacement. (DO NOT loosen them in any other
	cases.)
	- See 2-2. Part Replacement Procedures, (8) Purge
	drive system unit (right plate) and switch system
	unit (left plate) removal, for details.
	- See 2-2. Part Replacement Procedures, (9) Engine
	unit reassembly, for details.
Platen unit	(1)	Cassette unit
	(2)	Left and right side covers
	(3)	Document pressure plate unit
	(4)	Scanner unit
	(5)	Main case
	(6)	Rear cover
	(7)	Print unit
	(8)	See 2-2. Part Replacement Procedures, from this
		step.

In the service mode:

1.Perform LF / Eject correction (only when uneven printing or streaks appear on printouts after replacement).

[See 3-3. Adjustment and Settings in Service Mode, for details.]

2.Print the integrated inspection pattern.

Spur unit	(1)	Cassette unit	In the service mode:
	(2)	Left and right side covers	1.	Print the integrated inspection
	(3)	Document pressure plate unit		pattern.
	(4)	Scanner unit	2.	Perform LF / Eject correction

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(5)Main case

(6)Rear cover

(7)Print unit

(8)See 2-2. Part Replacement Procedures.

-DO NOT contact the spur edges.

Purge drive	(1)	Cassette unit
system unit	(2)	Left and right side covers

(3)Document pressure plate unit

(4)Scanner unit

(5)Main case

(6)Rear cover

(7)Print unit

(8)See 2-2. Part Replacement Procedures.

-See 2-2. Part Replacement Procedures, (8) Purge drive system unit (right plate) and switch system unit (left plate) removal, for details.

-See 2-2. Part Replacement Procedures, (9) Engine unit reassembly, for details.

Carriage rail and main chassis

Idler pulley parallel pin

APP code wheel gear shaft

Document pressure sheet

Document pressure plate

Scanner unit

Document pressure plate unit

Document top cover unit

See 2-2. Part Replacement Procedures, and Parts

Catalog.

(1)Cassette unit

(2)Left and right side covers

(3)Document pressure plate unit

(4)Scanner unit

(1)Right side cover

(2)Document pressure plate unit

(3)Document top cover unit

(4)LCD viewer

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

-To protect the external housing of the machine from scratches, spread a soft cloth and

disassemble / reassemble the machine on it.

(only when uneven printing or streaks appear on printouts after replacement).

[See 3-3. Adjustment and Settings in Service Mode, for details.]

In the service mode:

1.Print the integrated inspection pattern.

1.Apply grease to the sliding portions.

[See 3-4. Grease Application, for details.]

In the service mode:

2.Print the integrated inspection pattern.

1.Confirm the document pressure plate sheet position.

[See 3-5. Special Notes on Servicing, (4) Document pressure sheet replacement, for details.]

In the service mode:

2.Print the integrated inspection pattern.

In the service mode:

1.Perform button and LCD test. [See 3-3. Adjustment and Settings in Service Mode, for details.]

2.Set the sensitivity of the capacitive sensors.

[See 3-3. Adjustment and Settings in Service Mode, (7) Capacitive sensor sensitivity

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LCD viewer unit

Timing slit strip film

Timing slit disk feed film

Timing slit disk eject film

Print head

Wireless LAN board ass'y

See 2-2. Part Replacement Procedures, and Parts

Catalog.

-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.

(1)Cassette unit

(2)Left and right side covers

(3)Document pressure plate unit

(4)Scanner unit

(5)Main case

(6)WLAN board

Front door	(1)	Cassette unit
unit	(2)	Left and right side covers
	(3)	Document pressure plate unit
	(4)	Scanner unit
	(5)	Main case
	(6)	Front door / bottom case

setting, for details.]

3.Print the integrated inspection pattern.

In the user mode:

1. Perform print head alignment.

In the service mode:

2.Print the nozzle check pattern.

3.Perform LF / Eject correction (only when uneven printing or streaks appear on printouts after replacement).

[See 3-3. Adjustment and Settings in Service Mode, for details.]

In the user mode:

1. Perform print head alignment.

In the service mode:

2.Print the integrated inspection pattern.

In the user mode:

1. Reset the LAN settings.

In the service mode:

2.Print the integrated inspection pattern, and confirm that the WLAN MAC address is properly updated.

In the service mode:

1.Print the integrated inspection pattern.

*1: To reassemble the unit after replacement, follow the procedures in the reverse order.

General notes:

-Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly. See 2-2. 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.

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-Protect the units from soiled with ink.

-Protect the housing from scratches.

-For automatic print head alignment, use Matte Photo Paper MP-101 to maintain the alignment accuracy.

-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 (DO NOT loosen them in other cases).

ii.Before loosening the 3 screws that fix the carriage rail to the main chassis, mark the screw positions so that the carriage rail will be re-attached to the main chassis in its original position. [See 2-2. Part Replacement Procedures, (6) Carriage unit removal, for details.]

<2-1. Major Replacement Parts and Adjustment>

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