Canon CLC 1120 Service Handbook page 8

CHAPTER 1 MAINTENANCE AND INSPECTION
Unit
Primary charging wire,
Post-cleaning charging wire
Separation, Internal/external
static eliminator charging
wire
Grid plate,
primary charging wire
cleaning pad
Photosensitive No. 2 cleaner blade
drum area
Black toner concentration
sensor
Pre-cleaner sensor
Pre-exposure lamp filter
Photosensitive drum butting
block
Drum heater slip ring
Developing Photosensitive drum butting
assembly roll
Bias electrode
Fixing Fixing inlet guide
assembly Lower roller separation claw
Oil applying blade
Oil applying felt
Thermistor
Fixing oil
Others
Waste toner
Hopper toner pan
Leakage breaker
Image adjustment
1-2
Part
every
20,000
(front)
Intervals
every
every every
25,000 40,000 50,000
Remarks
For primary charging
assembly, clean every
20,000 copies in low-
humidity areas; for high-
temperature/humidity
areas, clean every 15,000
copies.
In high-temperature/-
humidity areas, replace
every 15,000 copies.
For high-temperature/-
humidity areas, replace
every 15,000 copies.
Turn over blade.
See Note .
Clean with cotton wad;
see Note.
Clean when replacing
photosensitive drum.
Clean when replacing
photosensitive drum.
Dry wipe every 150.000
copeis.
Clean when replacing
developer.
Clean each time
developing assembly
(each color) is mounted.
Use solvent.
Use lint-free paper.
Turn over felt.
Dry wipe.
Remove build up of
toner.
Includes execution of auto
gradation correction.