Lexmark T656dne - Spots

2-162 Service Manual
4062
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Spots
Step Check Yes No
1 Check the media condition.
Load new, dry, recommended media.
Re-print the defective image.
Does the error continue?
Go to step 2. Problem solved.
2
Check the media transfer route.
Is the media route free of contamination or debris?
Go to step 3. Remove debris
or
contamination.
3
Check the print cartridge for spots or other damage on
the drum surfaces.
Is the print cartridges free of excess wear and
contamination?
Go to step 4. Replace the
print cartridge.
4
Check the charge roll assembly for contamination and
wear.
Is the above component free of excess wear and
contamination?
Go to step 5. Replace the
charge roll
assembly.
Go to “Access
door removal”
on page 4-7.
5
Check the transfer roll assembly for contamination and
wear.
Is the above component free of excess wear and
contamination?
Go to step 6. Replace the
transfer roll
assembly.
Go to “Transfer
roll assembly
removal” on
page 4-80.
6
Check the heat roll and pressure roll.
Remove the fuser unit assembly.
CAUTION: : Allow
the fuser unit
assembly to cool
down.
Is there contamination or cracks on the heat roll and/or
pressure roll?
Replace the
fuser unit
assembly.
Go to “Fuser
unit assembly
removal” on
page 4-22.
Go to step 7
Leading edge
Trailing edge