Diagnostic information 2-101
5021-0XX
Print quality service checks
Background service check
Background is smeared due to toner spread.
Problem area Action
1 Toner cartridge Too small charging amount in the
development process.
2 Check developer high
voltage contact points.
Insufficient contact of developer
roller's primary or secondary high
voltage contact points. Ensure
primary and secondary contact points
are free from contamination and toner
debris.
Check toner cartridge developer roller
bias pole. If contaminated, clean it. If
damaged or deformed, replace toner
cartridge.
3 Photodeveloper (OPC)
cartridge
Photodeveloper cartridge has
reached life or is failing. Replace
photodeveloper cartridge. See
“Photodeveloper cartridge
removal” on page 4-11.
Note: Photodeveloper cartridge is a
customer ordered supply.
4 High voltage power supply
(HVPS)
HVPS has failed. Replace HVPS. See
“High voltage power supply
(HVPS) removal” on page 4-59.
