Repair, After replacement, At replacement

3. REPAIR

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

Service part

Logic board ass'y QM2-3827

Absorber kit

QY5-0178

Carriage unit

QM2-3753

Paper feed motor QM2-3873

Spur base unit

QM2-3750

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

-The screws securing the carriage rail are allowed to be loosened only at carriage replacement. Before removing the screws, mark the positions of the screws on the carriage rail so that they will be returned to their original positions after the carriage is replaced.

-The 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.Set the ink absorber counter value.

4.Set the language to be displayed on the LCD.

[See 3-3. Adjustment / Settings,

(9)Service mode, for details of 1 to 4]

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

After replacement:

1. Reset the ink absorber counter.

[See 3.3. Adjustment / Settings,

(9) Service mode.]

At replacement:

1.Apply grease to the sliding portions.

[See 3-3. Adjustment / Settings, (5) Grease application.]

After replacement:

1.Adjust the distance between the print head and the paper (between the carriage rail and the platen).

[See 3.3. Adjustment / Settings, (2) Carriage rail adjustment.]

2. Check the ink system function.

[See 3.3. Adjustment / Settings, (9) 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.]

After replacement:

1. Check the ink system function. [See 3.3. Adjustment / Settings,

(9) Service mode.]

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 ink system function.)

-Printing on thick paper

- Service test print

Document pressure plate ass'y

QM2-3756,

Document pressure sheet QC1-9514,

Scanner unit QM2-3775 Timing slit strip film QC1-9542

Timing slit disk film

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

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

At replacement:

1.Adjust the document pressure sheet position.

[See 3.3. Adjustment / Settings,

(2) Carriage rail adjustment.]

After replacement:

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

1-11

- Service test print