Background (Fog) - Lexmark X850e 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 toner cartridge.
Install a new toner cartridge.
Re-print the defective image.
Is the image density normal?
4 Check the transfer roll assembly.
Remove the transfer roll assembly.
Is the transfer roll assembly rotating, and free of
contamination, and wear?
5 Check the image development process.
Perform a print test. Turn off the printer power while
printing.
Carefully remove the PC cartridge, and check the toner
image formed on the drum before the transfer roll
assembly.
Is the image completely formed on the drum and the
area clear, black, and easily read?
6 Check the image transfer process.
Check the toner image formed on the drum after the
transfer roll assembly passed.
Is the toner image completely transferred on the media?
7 Check the HVPS card assembly.
Replace the HVPS card assembly.
Perform a print test.
Does the error continue?
Check Yes
Go to step 2. Problem solved.
Go to step 3. Remove debris
or
contamination.
Problem solved. Go to step 4.
Go to step 5. Replace the
transfer roll
assembly.
Go to step 6. Go to step 7.
Go to step 8. Go to step 7.
Problem solved. Go to step 8.
Diagnostic information
7500-XXX
No
2-225