Lexmark W850n Service Manual page 114

4024-110
Step Check
8 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?
9 Check the HVPS.
Replace the HVPS.
Perform a print test.
Does the error continue?
10 Check the printer engine card assembly.
Replace the printer engine card assembly.
Perform a print test.
Does the error continue?
11 Check the printhead assembly for connection.
Warning: If too much force is applied to the board when
checking it, the printhead could become misaligned.
Are P/J130, P/J620, and P/J406 connected properly?
2-94
Printer Service Manual
Yes No
Go to step 9. Go to step 10.
Go to step 10. Problem solved.
Go to step 11. Problem solved.
Replace the RIP Replace the
card assembly. connections.
Go to "RIP card
assembly
removal" on
page 4-126.