Image Quality
Xerox Internal Use Only
Phaser 3320 and WorkCentre 3315/3325
Service Manual
3-3
Repeating Defects
If an image defect appears at regular intervals on the printed media, it is likely due to a faulty or
damaged roller in the Fuser, Print Cartridge or Transfer Roller. Measure the interval between defects
and use the following table to identify the affected roller.
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insert art
>
No.
Component
Band Period
(mm)
Problem
Developer Assembles
1.
1st Pressure Roller
62.8 mm
Background
Fuser
2.
2nd Pressure Roller
37.7 mm
Background
3.
Heat Roller
77.8 mm
Black Spots, or Ghosting
4.
Charge Roller
26.7 mm
Black Spots
Print Cartridge
5.
Developer Roller
36.78 mm
Horizontal Bands
6.
OPC Drum
75.49 mm
White and Black Spots
7.
Supply Roller
69.57 mm
Horizontal Bands
8.
Transfer Roller
47.1 mm
Ghosting, Damaged
Image
Transfer Roller
