Canon MP540, Упрощенное руководство по обслуживанию

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Service part Notes on replacement
*1
Adjustment / settings Operation check
Platen unit After replacement:
1) Perform LF / Eject correction in
the service mode.
- EEPROM information print
- Service test print
Spur unit - DO NOT contact the spur
edges.
After replacement:
1) Check the ink system function.
2) Perform LF / Eject correction in
the service mode.
- EEPROM information print
- Service test print
Purge drive
system unit
After replacement:
1) Confirm the purging operation
and the machine operation.
- Service test print
Carriage rail and
main chassis
Idler pulley
parallel pin
Easy-Scroll
Wheel base
APP code wheel
gear shaft
At replacement:
1) Apply grease to the sliding
portions.
- Service test print
Document cover
unit
Scanner unit
At replacement:
1) Confirm the document pressure
sheet position.
- Service test print
Panel board
ass'y
LCD unit
- Be cautious not to scratch
or damage the LCD cable.
At replacement:
1) Perform button and LCD test.
- Service test print
Timing slit strip
film
Timing slit disk
feed 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.)
- Do not bend the film
After replacement:
1) Perform print head alignment in
the user mode.
2) Perform LF / Eject correction in
the service mode.
- EEPROM information print
- Service test print
Print head After replacement:
1) Perform print head alignment in
the user mode.
- Service test print
*1: General notes:
- Make sure that the flexible cables and wires in the harness are in the proper position and
connected correctly.
- 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, and timing slit disk feed film. No grease or abrasion is
allowed.
- Protect the units from soiled with ink.
- Protect the housing from scratches.
- 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