Troubleshooting Guide
G160/G161 4-36 SM
Symptom Possible cause Necessary actions
same color appear at irregular
intervals.
Defective transfer belt unit Replace the transfer belt unit.
4.3.13 GHOSTING
Symptom Possible cause Necessary actions
Defective PCU Replace the PCU. The same or similar image
appears two or more times.
They get weaker and weaker.
Defective transfer unit Replace the transfer unit.
4.3.14 UNFUSED OR PARTIALLY FUSED PRINTS
Symptom Possible cause Necessary actions
Non-standard 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 registration roller Repair the paper feed unit.
Incorrect action of transfer
roller
Check the transfer roller.
Defective engine board (EGB)
Replace the engine board
(EGB).
Unclean separation pad Clean the separation pad.
Images are skewed
Defective spring
Replace the spring for the
friction pad.
4.3.16 BACKGROUND STAIN
Symptom Possible cause Necessary actions