Xerox 2135N - Phaser Color Laser Printer, Quick Reference Manual

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Service Guide 53
Repeating defect or voids on print
This can usually be traced to a
dent-like defect in the developer
roller of the imaging drum unit in
question. Measure the spacing
between the spots. The distance
between the repeating spots
indicates the source of the problem.
In some instances, the spots may be
dark instead of white. They may
also be shaped something other
than round.
■
If the spots are about 143 mm
(5.6 in.) apart, then the problem
is a defect on a fusers heat
roller. Replace the fuser.
■
If the spots are about 113 mm
(4.4 in.) apart, then the problem
is a defect on a fusers pressure
roller. Replace the fuser.
■ If the spots are 58 mm
(2.3 in.) the problem is with the
transfer roller of the transfer
belt unit. Replace the transfer
belt unit.
■
94 mm (3.7 in.): Imaging drum. Replace the imaging drum unit.
■
50 mm (2.0 in.): Developing roller. Replace the imaging drum unit of
the affected color.
■ 44 mm (1.7 in.): Charging roller. Replace the imaging drum unit of the
affected color.
■
68 mm (2.7 in.): Toner supply roller. Replace the imaging drum unit of
the affected color.