Canon PIXMA MX870 Series, Руководство по обслуживанию

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*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.
- 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.]
wheel
gear shaft
Document
pressure
sheet 10 (1) Cassette unit
(2) Left and right side covers
(3) Document pressure plate unit
(4) Scanner unit
At replacement:
1. Confirm the document pressure plate
sheet position. [See 4-5. Special Notes
on Servicing, (4) Document pressure
sheet replacement
, for details.]
- Service test
print
Document
bottom
cover
Scanner
unit
LCD ass'y 10 (1) Panel cover
(2) Operation panel
(3) LCD ass'y
- Be cautious not to scratch or damage the
LCD cable.
At replacement:
1. Perform button and LCD test. [See 4-2.
Service Mode , for details.]
- Service test
print
Timing
slit strip
film 15 See 3-2. Part Replacement Procedures , and
Parts Catalog.
- 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 (only when uneven
printing or streaks appear on printouts
after replacement).
[See
4-2. Service Mode , for details.]
- EEPROM
information
print
- Service test
print
Timing
slit disk
feed film 15
Print head 1 After replacement:
1. Perform print head alignment in the
user mode.
- Service test
print
Wireless
LAN
board
ass'y 15 (1) Cassette unit
(2) Left and right side covers
(3) Document pressure plate unit
(4) Scanner unit
(5) Main case
(6) WLAN board After replacement:
1. Reset the LAN settings in the user
mode.
2. In the service mode, confirm that the
WLAN MAC address is properly
updated.
[See
4-2. Service Mode , for details.]
- EEPROM
information
print
- Service test
print
<3-1. Major Replacement Parts>
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