Specifications

Item Explanation
Cleaning Unit Cleaning Blade A dirty or worn out cleaning blade will cause black
lines on copies and/or scratches on the drum. The
blade must be replaced or cleaned at regular intervals.
Cleaning Brush A worn out cleaning brush will not clean effectively,
resulting in a dirty background and damage to the
cleaning blade. Replace at regular intervals.
Fusing Unit Thermistor If toner accumulates on the thermistor, fusing
temperature control may not be accurate. Inspect the
thermistor at regular intervals.
Stripper Pawls Toner or dust adhering to the stripper pawls can
cause a paper jam. Clean or replace the pawls at
regular intervals.
Fusing Entrance and
Exit Guides
Toner piling up on the guide plate will cause a dirty
background on the copy. Clean the guide plate at
regular intervals.
Duplex Unit Paper Feed and
Friction Rollers
The duplex unit uses the feed and friction roller (FFR)
system. If paper dust or dust adheres to the paper
feed and friction rollers and if the rollers are worn out,
paper may not feed correctly and/or skewing may
result. Cleaning or replacement is required at regular
intervals.
Transport Roller A transport roller that is dirty or slips may cause a
dirty copy image or a paper jam. Clean the rollers at
regular intervals.
Round Belt The round belt transmits driving power to the turn
guide roller. When the belt wears out (breaks or
stretches), a paper jam may occur. Replace the belt
at regular intervals.
ARDF Transport Belt A dirty transport belt can leave stains on copies.
Clean or replace the belt at regular intervals.
Pick-up Roller,
Separation Roller,
Separation Belt
When dirty, these rollers and this belt can leave stains
on the copy paper. Clean or replace these parts at
regular intervals.
Sorter Bin Drive Wheel, Bin
Guide
Dust adhering to the bin drive wheel or bin guide may
interfere with bin movement and result in uneven bin
positioning. Clean and lubricate if necessary.
1 December 1990
4-45