Canon PIXMA MP500 Service Manual page 21

Purge unit: QM2-
2925
Waste ink tube: QC1-
6458
Waste ink tube
holder: QC1-6460
Platen unit
QM2-2923
PR lift shaft ass'y:
QL2-0936
CL input gear: QC1-
6213
Timing slit strip film
QC1-6394
Timing slit disk film
QC1-6229
Print head
QY6-0059
*1: General notes:
- Make sure that the flexible cables and wires in the harness are in the proper position and connected correctly.
[See 3-2. Special Notes on Repair Servicing, (4) Flexible cable and harness wiring, connection, for details.]
- Perform the manual purging 3 to 4 times to confirm that no strange noise is heard.
[See 3-2. Special Notes on Repair Servicing, (5) Machine unit and bottom case unit assembly.]
- 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 film. No grease or abrasion is allowed.
- Protect the units from soiled with ink.
- Protect the housing from scratches.
- Exercise caution with the red screws, as follows:
i. The red 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. DO NOT loosen the red screws on both sides of the main chassis, securing the carriage shaft
positioning (they are not adjustable in servicing).
To the table of contents
secure the waste ink tube to
the waste ink tube holder.
- 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
<Part 1: 3. REPAIR, 3-1>
1. To protect the waste ink
tube from being pinched
when reassembling the
machine unit chassis into
the bottom case unit, tape
the tube (at 2 locations).
[See 3-2. Special Notes on
Repair Servicing, (5)
Machine unit and bottom
case unit assembly.]
At replacement:
1. Check the ink system
function.
[See 3.3. Adjustment /
Settings, (5) Service mode.]
At replacement:
1. Apply grease to the
sliding portions.
[See 3.3. Adjustment /
Settings, (2) Grease
application.]
After replacement:
1. Perform the print head
alignment in the user
mode.
After replacement:
1. Perform the print head
alignment in the user
mode.
1-15
case unit, the tube
conditions are not visible.
For confirmation of the
tube conditions, perform
the manual purging 3 or 4
times, and confirm that no
strange noise is heard.
- Service test print
- Service test print
- Service test print
- Service test print
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