Canon PIXMA MP170, Service Manual

Page: 17 / 70

3. REPAIR
3-1. Notes on Service Part Replacement (and Disassembling / Reassembling)
Service part
Notes on replacement
*1
Adjustment / settings Operation check
Logic board ass'y
MP170: QM2-3210
MP450: QM2-3231
- Before removal of the logic
board ass'y, remove the
power cord, and allow for
approx. 1 minute (for
discharge of capacitor's
accumulated charges), to
prevent damage to the logic
board ass'y.
- Before replacement, check
the waste ink amount, and
re-set the waste ink amount
data in the replaced logic
board ass'y.
[See 3-3. Adjustment /
Settings, (7) Service mode,
for details.]
After replacement:
1. Initialize the EEPROM.
2. Set the waste ink data.
3. Set the destination in the
EEPROM.
4. Set the LCD language.
[See 3-3. Adjustment /
Settings, (7) Service
mode, for details of 1 to
4.]
5. Perform the print head
alignment in the user
mode.
- EEPROM information
print
- Service test print
- Printing via parallel or
USB connection
- Direct printing from a
digital camera
- Direct printing from a
memory card
- Print Beam printing
Ink absorber
QC1-6014
Platen waste ink absorber After replacement:
1. Reset the platen waste ink
counter.
[See 3-3. Adjustment /
Settings, (7) Service
mode, for details.]
- Service test print
Bottom case unit
MP170: QM2-2800
MP450: QM2-2814
Main waste ink absorber After replacement:
1. Reset the main waste ink
counter.
[See 3-3. Adjustment /
Settings, (7) Service
mode.]
2. Adjust the head-to-paper
distance.
[See 3-3. Adjustment /
Settings, (7) Service
mode.]
- Service test print
- Printing on thick paper
Ink absorber
MP170: QY5-0149
MP450: QY5-0151
Carriage unit
QM2-2136
The red screws on both sides
of the main chassis securing
the carriage shaft are allowed
to be loosened only when
replacing the carriage or
removing the main chassis.
Before removing the screws,
mark the original screw
position, and re-fasten them
at the original position.
At replacement:
1. Apply grease to the
sliding portions.
[See 3-3. Adjustment /
Settings, (4) Grease
application.]
2. Adjust the distance
between the carriage
shaft and the platen.
[See 3-3. Adjustment /
Settings, (2) Main chassis
and carriage rail
adjustment.]
3. Perform the print head
alignment in the user
mode.
- Printing on thick paper
Paper feed motor unit
QM2-3166
- The red screws securing the
paper feed motor are
allowed to be loosened.
(DO NOT loosen any other
red screws.)
At replacement:
1. Adjust the paper feed
motor.
[See 3-3. Adjustment /
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