Repeating Defects - Xerox Phaser 6100 Service Manual

Maintenance and Diagnostics

7.5 Repeating Defects

If an image defects appears at regular intervals on the printed-paper, it may be due to a faulty or damaged
maintenance item or part. To identify which maintenance item is responsible for the defect, refer to the table below
and check the condition of the appropriate roller.
Part
Imaging Unit
Drum
Imaging Unit
Charge Roller
Toner Supply Roller
Toner Developer
Roller
Transfer Belt
T1 Roller
Transfer Belt
T2 Roller
Fuser
Heat Roller
Transfer Belt Tension
or Idler
Transfer Belt Idle
Rollers
Note
Printing 10 blank pages will clear many repeating defects. Try this prior to replacing any parts. A damaged
imaging unit drum, caused by over exposure to light, may recover after 24 hours.
7-10
Defective Image
same position on each White spot on black image or black spots.
page
44 mm Black spots
17 mm Light or dark horizontal banding.
29 mm Horizontal image band.
39 mm Black spot
75 mm Ghosting
112 mm Black spot and ghosting. Backside contamination.
51 mm Horizontal banding
94 mm Horizontal banding
Typical Defect