Canon 7086 Series Service Manual - page 486
Chapter 13
13-4
Points to Note When Cleaning/Replacing the Charging Wire or Replacing the Charging Wire Cleaner
After the following, check to make sure that the charging wire is in the middle of the charging wire cleaner; failure to observe this is likely to cause image faults:
a. cleaning the charging wire
b. replacing the charging wire
c. moving the charging wire cleaner by hand
d. replacing the charging wire cleaner
F-13-1
F-13-2
T-13-4
Correct
Wrong
No.
Step
Work
Remarks
5
Clean the optical assembly:
- No. 1/2/3 mirror
- dust-blocking glass
- scanning lamp reflecting plate
- standard white plate
Use a blower brush. If dirt resists
removal, use alcohol.
6
Check the optical system:
- scanner cable
- scanner rail
Check the area around the cable.
Clean the sliding area, and apply silicone oil (FY9-
6011).
Check the scanner cable only at the
first 250,000 prints.
7
Dispose of the waste toner, and check the case.
If the case is half full with waste toner, dispose of the
waste toner in a vinyl bag. Or, replace the case itself.
8
Clean the filters.
- ozone filter
- dust filter
Remove the dust from the filter
surface.
9
Clean the developing assembly.
- developing assembly roll
Clean the developing assembly roll.
10
Clean the pickup /transport assembly.
- transfer guide (upper, lower) plate
- registration roller (upper, lower)
- transport belt
- transport rollers
- scanner sensor (prism)
Use an air blower, or dry wipe. (Do
not use solvent.)