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2-76 Service Manual
5055-01x
Uneven Printing
Periodic Dirt
White Spots
Possible Cause Action
Photoconductor Drum Check for condensation or dirt on the
photoconductor drum.
LED Printhead Clean any dirt off the exposed
surface of the LED printhead. Also
check the locating pins of the
printhead.
Transfer Belt Unit Be sure the transfer belt is clean and
not damaged. Replace parts as
necessary.
Top Cover Be sure the top cover is fully locked.
Possible Cause Action
Fuser Heat Roll
Fuser Press Roll
Fuser Oil Roll
Check for dirt or damage to the fuser
heat, the fuser press roll, or the fuser
oil roll.
Photoconductor Drum Check for scratches on the surface
and replace if necessary.
Possible Cause Action
LED Printhead
Photodeveloper
Toner Cartridge
Firmly install the PC drum unit into
the toner cartridge and the print unit
into the printer.
Belt Unit Check the belt unit for scratches or
nicks. Be sure there is no toner
buildup on the belt. Replace the belt
unit if it is damaged.
Service.bk Page 76 Thursday, October 4, 2001 12:20 PM