Ricoh FT4460, Service Manual, Page: 210 / 413

28 February 1989
Item Explanation
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 inter-
vals.
Fusing Entrance Toner piling up on the guide plate will
and Exit Guides cause a dirty background on the copy.
Clean the guide plate at regular inter-
vals.
AD500 Paper Feed Roller,
Duplex feeding uses the friction pad
Friction Pad
system. Paper dust or oil may cause
rollers to stick, resulting in paper feed
failure or skewing of the copy image.
Clean or replace 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.
Positioning Roller Sponge rollers are used here. When
they wear out, a paper jam may result
in duplex/overlay copy mode. Replace
sponge rollers at regular intervals.
Round Belt The round belt transmits driving power
to the positioning roller. When the belt
wears out (breaks or stretches), a
paper jam may occur. Replace the belt
at regular intervals.
DF52 Transport Belt
A dirty transport belt can leave stains
on copies. Clean or replace the belt at
regular intervals.
Pick-up Roller,
When dirty, these rollers and this belt
Separation Roller, can leave stains on the copy paper.
Friction Belt Clean or replace these parts at regular
intervals.
4-50