Lexmark E310 Service Manual - Page 53

Partial blank image/white spots no periodic pattern

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4044-XXX Partial blank image/white spots (no periodic pattern) FRU Toner Cartridge Fuser Backup Roller Springs Paper Action Remove the toner cartridge and gently shake the assembly to evenly distribute the toner. If toner cartridge is low, try a new one. Check left and right backup roller springs and backup roller to ensure adequate even pressure is applied to the fuser hotroll. Make sure recommended paper is being used. Variation in image density horizontally across page FRU Toner Cartridge Transfer Roller Bearing Assembly Transfer Roller Action The charge roll in the toner cartridge may have an unbalanced pressure against the PC drum. Try a new toner cartridge. 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. Diagnostic Information 2-31

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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.