86
Rm-MF1/Rm-P1 Training
Slide 86
Printed Image Issues
When abnormal image (black or white dots) appears at certain intervals,
component part causing spots may sometimes be identified (based on
circumference of certain components):
Paper Feed
Black or White Dots at Regular Intervals
29.8 mm intervals: Charge Roller
37.7 mm intervals: Registration Roller
37.9 mm intervals (Colored spots): Print cartridge
(Development Roller)
45.8 mm intervals: Transfer Roller
75.3 mm intervals (Colored spots): Print cartridge (OPC
Drum)
94.2 mm intervals: Fusing unit (Pressure Roller)
93.1 mm intervals: Fusing unit (Hot Roller)
100.5 mm intervals: Paper Feed Roller
No additional notes