2KN/2KP
2-4-4
Section
Maintenance
part/location
Method
Maintenance
cycle
Points and cautions Page
Optical
section
Slit glass Clean Every service Clean with a dry cloth or alcohol
(do not clean with a wet cloth).
Contact glass Clean Every service Clean with alcohol and then a dry
cloth.
Mirror 1 Clean Every service Clean with alcohol and then a dry
cloth.
Mirror 2 Clean Every service Clean with alcohol and then a dry
cloth.
Scanner lens Clean Every service Clean with a dry cloth.
Reflector Clean Every service Clean with alcohol.
Exposure lamp Check or
replace
Every service Replace if an image problem
occurs.
Run maintenance item U990 to
check the accumulated time and
replace the lamp if the time
exceeds more than 60,000 min.
P.1-5-28
P.1-3-95
Optical rail Grease Every service Check noise and shifting and then
apply scanner rail grease PG-671.
Original size
detection sensor
Clean Every service Clean the sensor emitter and sen-
sor receiver with alcohol or a dry
cloth only if there is a problem.
Section
Maintenance
part/location
Method
Maintenance
cycle
Points and cautions Page
Drum
section
Drum Clean
Check and
replace
Every service Clean with a dry cloth. Replace if
the scratches on the drum.
P.1-5-44
Potential sensor Clean Every service Air blow (do not vacuum).
Drum heater electrode Clean
Check and
replace
Every service Clean with a dry cloth.
Replace if the resistance between
the disk and electrode is 10 Ω or
more.
P.1-5-47
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