Ricoh M160, Service Manual

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Troubleshooting
M160/M161 6-118 SM
Problems Intervals Defective parts
(other than black or white
dots)
45.8mm Image transfer roller
112mm Fusing pressure roller
94mm Fusing roller
100.5mm Paper feed roller
Black or white dots
35.6mm Development roller
94.4mm Drum
The LED head contains 26 LED chips, each covering a line 8 mm wide. If a line 8 mm wide
extending in the paper feed direction appears, an LED chip may be damaged. If so, replace the
LED head.
When Vertical Banding is Generated
The vertical banding on a print image may be improved by the [Drum Rotation] function.
1. Select a drum rotation level.
[User Tools/Counter] key > Maintenance > Drum Rotation
2. Select a drum rotation level from the following 2 levels: Level 1 (Normal) and Level 2
(Strong).
<Operation>

Level1 : Photo conductor idles for 55 seconds

Level2 : Photo conductor idles for 30 seconds (for black and white vertical banding)
<Effectively Prevented Phenomena>

Level1 : Pieces of white banding (for half tone or continuous printing)

Level2 : White vertical banding (for half tone), black vertical banding, and black horizontal
banding