Ricoh G081, Service Manual

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TROUBLESHOOTING GUIDE
G081/G092 4-14 SM
4.3.12 CMY COLOR IRREGULAR STREAKS
Symptom Possible cause Necessary actions
Defective PCU Replace the PCU. Unexpected streaks of the
same color appear at
irregular intervals.
Defective transfer belt unit Replace the transfer belt
unit.
4.3.13 GHOSTING
Symptom Possible cause Necessary actions
The same or similar image
appears two or more times.
They get weaker and
weaker. Defective PCU Replace the PCU.
NOTE: 1) “Ghosting” is sometimes unavoidable. This is because the charge is not
completely quenched while the transfer belt makes one rotation.
2) Older toner cartridges can result in ghosting issues.
4.3.14 UNFUSED OR PARTIALLY FUSED PRINTS
Symptom Possible cause Necessary actions
Nonstandard paper in use Use recommended paper.
Incorrect media type mode Select an appropriate media
mode.
Some parts of images are
not fused very well.
Defective fusing unit Replace the fusing unit.
4.3.15 IMAGE SKEW
Symptom Possible cause Necessary actions
Incorrect installation of paper Install the paper correctly.
Incorrect paper guide
position
Adjust the paper guide
correctly.
Defective intermediate or
registration roller Repair the paper feed unit.
Incorrect action of transfer
roller Check the transfer roller.
Defective engine control
board Replace the engine control
board.
Defective corner separator Replace the corner separator
Images are skewed
Defective spring Replace the spring