Canon imageCLASS MF3111 Service Manual - page 126
Chapter 4
ޓ
Running H/F 5
4-4
4.4
Cleaning
4.4.1
Items Requiring Cleaning
0007-6484
T-4-2
Before starting cleaning work, be sure to turn off the power and disconnect the power plug to avoid fires and
electric shocks.
Work by
Item
Intervals
User
External covers
As needed (when soiled)
Platen glass
When smears appear on image scanned from
the platen galss
Rear surface of the platen glass cover
When smears appear on image scanned from
the platen galss
Service technician
Cassette pickup roller
When paper pickup performance has lowered
Cassette separation pad
When paper separation performance has
lowered
Feed roller
When paper feed performance has lowered
Transfer charging roller
When the back of paper tends to become
soiled; or, when a white spot appears in the
images at intervals of about 46 mm
Static eliminator
When dots appear in images
Paper feed guide
When the back of paper tends to become
soiled
Fixing entrance guide
When paper tends to become soiled; when a
black line appears vertically at irregular
intervals; when paper jams; when paper
wrinkles
Fixing film
When images tend to become soiled at
intervals of about 57 mm
Fixing pressure roller
When the back of paper shows traces at
intervals of about 64 mm; when fixing faults
occur; when paper jams; when paper wrinkles