Abnormal Image Printing And Defective Roller - Dell 1600n - Multifunction Laser Printer B/W Service Manual

6.8 Abnormal Image Printing and Defective Roller

If abnormal image prints periodically, check the parts shown below.
Fuser
No Roller
1 OPC Drum
2 Charge Roller
3 Supply Roller
4 Develop Roller
5 Transfer Roller
6 Heat Roller
7 Pressure Roller
PR
Abnormal image period
75.5mm
37.7mm
37.0mm
35.2mm
45.3mm
77.8mm
75.4mm
L S U
Toner Cartridge
CR
DR
OPC SR
PTL
TR FR
Black side contamination/transfer fault
Kind of abnormal image
White spot, Block spot
Black spot
Horizontal density band
Horizontal density band
Black spot and fuser ghost
Black side contamination
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