Lexmark T 430, Руководство по обслуживанию

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Diagnostic information
2-53
4048-1xx
Variation in image density horizontally across page
Poor fusing of image
FRU Action
Print cartridge
Right guide assembly
Left guide assembly The charge roll may have unbalanced pressure
against the PC drum. Check for equal forces at
both ends of the charge roll.
If one side has a much lower force than the
other, check the spring of the guide assembly.
Replace the faulty guide assembly (either right
or left).
If force seems similar, try a new cartridge.
Transfer assembly roll Check the springs and bearings at both ends
of the transfer roller. The bearing assemblies
should support the transfer roller, applying
even pressure to the PC drum.
Replace the transfer roll assembly if either
spring shows signs of damage or fatigue. See
“Transfer roll assembly” on page 4-43 .
Inspect the transfer roller for signs of wear or
damage and replace if necessary.
Note: Cleaning or vacuuming the transfer roll
is not recommended. An uneven distribution of
debris on the transfer roll can cause cyclic
variation in image density or banding.
FRU Action
Fuser The fuser may not be operating at the proper
temperature to fuse the toner to the paper. See
“Cold fuser service check” on page 2-41 .
Make sure recommended paper is being used.