2-66 Service Manual
7100-XXX
White print service check
Blank page (no print at all) is printed or, a specific color is missing.
Problem area Action
Solid white print
1 Optical Unit (Printhead) Laser light path is blocked by paper or other material stuck at
the opening of the optical unit. Ensure there are no foreign
particles stuck at the opening of the optical unit.
2 Transfer roller Transfer roller is not properly installed. Remove transfer roller
and reinstall. See “Transfer roller removal” on page 4-6.
Ensure transfer roller bias pole is touching spring contact on
left side (as viewed from front of printer) of roller.
3 HVPS Replace faulty HVPS. See “High voltage power supply
(HVPS) removal” on page 4-39.
One color missing
4 Toner cartridge Replace faulty toner cartridge.
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