Ricoh M C250FW, Field Service Manual

Page: 249 / 324

6.Troubleshooting
237
Problem Cause Details Solution
images the development unit is
dropping onto paper
(paper path timing).
•
Something has
jammed into the OPC
seal, allowing waste
toner to spill out.
operating in high
ambient
temperature and
humidity.
The problem
presents over time.
the machine.
If occurrence is
frequent, replace
the AIO.
White spots
appear in
images at
regular intervals
27 mm
intervals
Surface of the development
roller is contaminated with
foreign matter or small
divots.
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
The surface of the fusing
sleeve belt or pressure
roller is scratched or dirty.
The problem
presents over time.
Check the fusing
unit or replace it.
At the pass of the first sheet,
white spots appear on both
sides of images at regular
intervals.
Paper dust remains in the
paper feed tray.
Paper in use has
too much paper
dust.
Clean the paper
dust in the paper
tray. ( Cleaning
Points )
Uneven Color
Problem Cause Details Solution
Part of the image
is missing from
center to trailing
edge of paper
Toner in the development
unit temporarily not
applied evenly.
Can occur when printing
light image areas
repeatedly.
Remove and reinstall
the AIO.
White spots The AIO is not set Can occur at the beginning Remove and reinstall