Ricoh M0A0 - Page 317

6.Troubleshooting
305
Problems
Intervals
Defective parts
Problems with the printed result
(other than black or white dots)
29.9mm
Charge roller
37.7mm
Registration roller
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.
1. 8 mm
2. 8 mm
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
 Level 1 : Photoconductor idles for 55 seconds
 Level 2 : Photoconductor idles for 30 seconds (for black and white vertical banding)
Effectively Prevented Problems
 Level 1 : Pieces of white banding (for half tone or continuous printing)
 Level 2 : White vertical banding (for half tone), black vertical banding, and black horizontal banding
 If the [Drum Rotation] function is performed many times, the life of the drum unit may be shortened.