Canon PIXMA MP640, Руководство по обслуживанию, Страница: 22 / 57

*1: To reassemble the unit after replacement, follow the procedures in the reverse order.
*2: General notes:
- Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly. See 3-
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.
- Protect the units from soiled with ink.
- Protect the housing from scratches.
- For the MP640 / MP648 automatic print head alignment, use Matte Photo Paper (MP-101) to ensure 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 3-2. Part
Replacement Procedures, (7) Carriage unit removal , for details.]
<3-1. Major Replacement Parts>
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