Canon PIXMA MX870 Series, Service Manual

Page: 25 / 66

Paper
feed
motor (4) Scanner unit
(5) Main case
(6) Rear cover
(7) Print unit
(8) See
3-2. Part Replacement Procedures .
- The screws securing the paper feed motor
are allowed to be loosened only for paper
feed motor replacement. (DO NOT loosen
them in any other cases.)
- See 3-2. Part Replacement Procedures, (9)
Purge drive system unit (right plate) and
switch system unit (left plate) removal
, for
details.
- See 3-2. Part Replacement Procedures, (10)
Engine unit reassembly , for details.
(2) Paper feed motor adjustment , for
details.]
- Service test
print
Platen
unit 30 (1) Cassette unit
(2) Left and right side covers
(3) Document pressure plate unit
(4) Scanner unit
(5) Main case
(6) Rear cover
(7) Print unit
(8) See
3-2. Part Replacement Procedures ,
from this step.
After replacement:
1. 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
Spur unit 30 (1) Cassette unit
(2) Left and right side covers
(3) Document pressure plate unit
(4) Scanner unit
(5) Main case
(6) Rear cover
(7) Print unit
(8) See
3-2. Part Replacement Procedures .
- DO NOT contact the spur edges.
After replacement:
1. Check the ink system function.
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
Purge
drive
system
unit 30 (1) Cassette unit
(2) Left and right side covers
(3) Document pressure plate unit
(4) Scanner unit
(5) Main case
(6) Rear cover
(7) Print unit
(8) See
3-2. Part Replacement Procedures .
- See
3-2. Part Replacement Procedures, (9)
Purge drive system unit (right plate) and
switch system unit (left plate) removal
, for
details.
- See 3-2. Part Replacement Procedures, (10)
Engine unit reassembly , for details.
After replacement:
1. Confirm the purging operation and the
machine operation.
[See
4-6. Verification After Repair for
details.]
- Service test
print
Carriage
rail and
main
chassis 30 See 3-2. Part Replacement Procedures , and
Parts Catalog.
At replacement:
1. Apply grease to the sliding portions.
[See 4-4. Grease Application , for
details.]
- Service test
print
Idler
pulley
parallel
pin 30
APP code 30
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