Background (Fog) - Lexmark X945e MFP 7510 series Service Manual

Background (fog)

Leading edge
Trailing edge
Step
1 Check the media condition.
Load new, dry, recommended media.
Re-print the defective image.
Does the error continue?
2 Check the media transfer route.
Is the media path free of contamination or debris.
3 Check the four PC cartridges for proper installation.
Check the PC cartridge connections.
Are the PC cartridge connections free of excess wear
and contamination?
4 Check the 2nd transfer roll assembly for contamination
and wear.
Is the 2nd transfer roll assembly free of excess wear
and contamination?
5 Replace the four developer units and four developer
carriers. Go to
on page 4-63
replacement" on page
Does the problem remain?
6 Check the developer/transfer roll HVPS card assembly.
Replace the developer/transfer roll HVPS card
assembly.
Go to "Developer / transfer roll HVPS card assembly
removal" on page
Perform a print test.
Does the problem remain?
Check
"Developer unit assembly removal"
and "Developer carrier removal and
4-67.
4-112.
Yes No
Go to step 2. Problem solved.
Go to step 3. Remove debris
or
contamination.
Go to step 4. Correct and
clean
contaminated
pins, or replace
the appropriate
PC cartridge or
connector.
Go to step 5. Replace the 2nd
transfer roll
assembly.
Go to "2nd
transfer roll
assembly
removal" on
page 4-45.
Go to step 6. Problem solved.
Go to step 7. Problem solved.
Diagnostic information
7510
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