Lexmark X500N, Service Manual

Page: 101 / 244

Diagnostic information
2-63
7100-XXX
White band service check
Horizontal white banding creates missing portion of image.
Problem area Action
1 Transfer roller • Transfer roller bias pole is not making proper contact with
high voltage spring contact. Remove and reinstall transfer
roller. Ensure spring contact on left side (looking from front
of printer) is not damaged.
• Replace faulty transfer roller. See “Transfer roller
removal” on page 4-6 .
2 Transfer roller clutch Replace faulty transfer roller clutch. See “Clutch removal”
on page 4-27 .