Ricoh M C250FW, Field Service Manual

Page: 248 / 324

6.Troubleshooting
236
Problem Cause Details Solution
occur at
regular
intervals
use or over time.
76 mm
intervals
OPC drum may have
been accidentally
exposed to ambient light.
•
AIO was
replaced while
machine was
accidentally
exposed to
strong light.
•
Top cover was
left open,
exposing the
OPC drum to
strong overhead
light.
•
Can occur at the
beginning.
Leave the AIO in
the machine and
wait for the
problem to
resolve itself.
Spotted Images
Problem Cause Details Solution
Black spots
appear in
images at
regular intervals
27 mm
intervals
There is a problem with the
development roller.
The problem
presents over time.
Replace the AIO.
25 mm
intervals
There is a problem with the
image transfer roller.
The problem
presents over time.
Check the ITB or
replace the
image transfer
unit.
30 mm
intervals
There is a problem with the
charge roller.
The problem
presents over time.
Replace the AIO.
76 mm
intervals
OPC drum is scratched or
dirty.
Can occur at the
beginning of
machine use or
over time.
Replace the AIO.
78 mm
intervals
Toner has collected on the
pressure roller thermistor.
The problem
presents over time.
Clean the
pressure roller
thermistor or
replace it.
Traces of fallen toner on
•
Toner accumulated in
Machine is Continue to use