No Printing On Paper Edge; Image Not Centered When It Should Be - Ricoh G104 Service Manual

Symptom
The reverse side of the paper
is not clean.

4.3.17 NO PRINTING ON PAPER EDGE

Symptom
Images are not printed in the
areas around the paper
edges.

4.3.18 IMAGE NOT CENTERED WHEN IT SHOULD BE

Symptom
Images do not come to the
center.
SM
CÓPIA NÃO CONTROLADA
Possible cause
Unclean transfer roller
Unclean paper path
Unclean registration roller
Unclean fusing unit exit
Defective fusing unit
Possible cause
Defective PCU
Defective toner cartridge
Defective transfer belt unit
Transfer belt not contacting
PCU
Possible cause
Incorrect installation of paper Install the paper correctly.
Incorrect paper guide position
Incorrect margin setting
Defective engine control
board
4-37
CÓPIA NÃO CONTROLADA
Troubleshooting Guide
Necessary actions
Clean the transfer roller.
Clean the paper path.
Clean the registration roller.
Clean the fusing unit exit.
Replace the fusing unit.
Necessary actions
Replace the PCU.
Replace the toner cartridge.
Replace the transfer belt unit.
Check the transfer unit.
Necessary actions
Adjust the paper guide
correctly.
Adjust the margin setting.
Replace the engine control
board.
G160/G161