3. REPAIR

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

Service part Logic board ass'y QM2-3022

Absorber kit

QY5-0153

Carriage unit

QM2-3025

Paper feed motor

QK1-1502

Platen unit

QM2-3026

PR lift shaft ass'y: QL2- 0936

Carriage lift base unit QM2-2232

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 waste ink amount (by service test print or EEPROM information print).

[See 3-4. Verification Items,

(1)Service test print, or (2) EEPROM information print, for details.]

-The red screws securing the paper feed motor are allowed to be loosened. (DO NOT loosen any other red screws.)

Adjustment / settings

After replacement:

1.Initialize the EEPROM.

2.Set the destination in the

EEPROM.

3.Reset the waste ink counter.

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

5.Check the ink system function.

6.Adjust the line feeding.

[See 3-3. Adjustment / Settings,

(8)Service mode, for details of 1 to 6]

7.Perform the print head alignment in the user mode.

After replacement:

1. Reset the waste ink counter.

[See 3.3. Adjustment / Settings,

(8) Service mode.]

At replacement:

1.Apply grease to the sliding portions.

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

After replacement:

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

[See 3.3. Adjustment / Settings, (8) Service mode.]

2.Check the ink system function.

[See 3.3. Adjustment / Settings, (8) Service mode.]

3.Perform the print head alignment in the user mode.

At replacement:

1. Adjust the paper feed motor.

[See 3-3. Adjustment / Settings,

(1)Paper feed motor adjustment.]

At replacement:

1.Check the ink system function.

[See 3.3. Adjustment / Settings,

(8) Service mode.]

At replacement:

1.Apply grease to the sliding portions.

[See 3.3. Adjustment / Settings,

(2) Grease application.]

At replacement:

1.Apply grease to the sliding portions.

Operation check

-EEPROM information print

-Service test print

-Printing via USB connection

-Copy

-Direct printing from a digital camera

-Service test print

-EEPROM information print

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

-Service test print

-Service test print

1-13

Page 18
Image 18
Canon MP800 manual Repair, After replacement, At replacement