Lexmark Optra 4044-XXX, Service Manual

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Diagnostic Information
2-31
4044-XXX
Partial blank image/white spots (no periodic pattern)
Variation in image density horizontally across page
FRU Action
Toner Cartridge Remove the toner cartridge and
gently shake the assembly to evenly
distribute the toner. If toner cartridge
is low, try a new one.
Fuser Backup Roller Springs Check left and right backup roller
springs and backup roller to ensure
adequate even pressure is applied to
the fuser hotroll.
Paper Make sure recommended paper is
being used.
FRU Action
Toner Cartridge The charge roll in the toner cartridge
may have an unbalanced pressure
against the PC drum. Try a new
toner cartridge.
Transfer Roller Bearing Assembly
Transfer Roller Check the springs in the left and
right transfer roller bearings. The
bearing assemblies should support
the transfer roller, applying even
pressure to the PC drum. Replace
either or both transfer roller bearing
assemblies if the springs show signs
of damage or fatigue. Inspect the
transfer roller for signs of wear or
damage and replace as necessary.