Ricoh Aficio MP171 Field Service Manual page 155

Problems
Problems with the printed result
(other than black or white dots)
Black or white dots
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.
Intervals
29.9mm
37.7mm
45.8mm
112mm
94mm
100.5mm
35.6mm
94.4mm
Troubleshooting
Defective parts
Charge roller
Registration roller
Image transfer roller
Fusing pressure roller
Fusing roller
Paper feed roller
Development roller
Drum
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