Ricoh MP C307 Field Service Manual page 518

Troubleshooting Guide
Symptom Possible cause
Incorrect paper guide
position
Defective registration
roller
Incorrect action of
paper transfer roller
Defective BiCU
Incorrect installation
of paper tray
Background Stain
Symptom
The reverse side of the paper is not clean.
No Printing on Paper Edge
Symptom
Images are not printed in the areas around the
paper edges.
Image Not Centered When It Should Be
Symptom
Images do not come to the
center.
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Adjust the paper guide correctly.
•
When adjusting the paper width, use the right side guide only,
with the green clip. Do not hold the left side guide at this time,
or skew will occur.
Repair the paper feed unit.
Check the paper transfer roller.
Replace the BiCU.
Uninstall the paper tray units and re-install them.
Possible cause
Dirty paper transfer roller
Dirty paper path
Dirty registration roller
Defective fusing unit
Defective PCDU
Defective toner cartridge
Defective image transfer belt
unit
Image transfer belt not
contacting PCDU
Possible cause
Incorrect installation of paper
Incorrect paper guide position
Incorrect margin setting
Defective BiCU
Incorrect installation of paper
Necessary actions
Clean the paper transfer roller.
Clean the paper path.
Clean the registration roller.
Replace the fusing unit.
Possible cause
Install the paper correctly.
Adjust the paper guide correctly.
Adjust the margin setting.
Replace the BiCU.
Uninstall the paper tray units and re-install
Necessary actions
Necessary actions
Replace the PCDU.
Replace the toner cartridge.
Replace the image transfer
belt unit.
Check the image transfer belt
unit.
Necessary actions