Service manual

*1: General notes:

- 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, (1) Flexible cable and harness wiring, connection, for details.]

- Do not drop the ferrite core, as it may damage the core.

- Protect electrical parts from damage due to static electricity.

- Before removing a unit, after removing the power cord, allow the printer 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 and timing slit disk ass'y. No grease or abrasion is allowed.

- Protect the units from becoming soiled with ink.

- Protect the housing from scratches.

- Exercise caution with the red screws, as follows:

i. The red screws of the paper feed motor may be loosened only at replacement of the paper feed motor ass'y (DO

NOT loosen them in other cases).

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

(they are not adjustable in servicing).

To the top

(QC1-5150)

1. Apply grease to the sliding

portions.

[See 3-3. Adjustment / Settings,

(3) Grease application.]

Timing slit strip film

(QC1-5153)

- 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.

After replacement:

1. Perform the print head

alignment in the user mode.

- Service test print

Timing slit disk ass'y

(QL2-0843)

Print head

(QY6-0056)

After replacement:

1. Perform the print head

alignment in the user mode.

- Service test print