White Line I Service Check; White Line Ii Service Check - Lexmark X500n Service Manual

7100-XXX

White line I service check

Vertical white line appears in a specific color area when print quality test print is run.
Problem area
1 Test print
2 Toner cartridge

White line II service check

Vertical white line appears from leading edge to trailing edge of printed image.
Problem area
1 Laser unit assembly (printhead)
2 Toner cartridge
2-64
Service Manual
Action
Print the maintenance page. See
and configuration pages" on page
on specific color.
• Developer roller of specific toner cartridge is dirty. Remove
foreign particle adhering to specific toner cartridge
developer roller.
• Developer roller surface is damaged. Replace problem
toner cartridge.
Action
Dust-proof glass of laser unit is smeared with toner or foreign
particles. Clean glass:
• Remove toner cartridges and photodeveloper cartridge.
See "Photodeveloper cartridge removal" on page
• Open dust-proof glass cover.
• Clean glass.
There are foreign particles adhering to laser beam opening of
printhead. Clean laser beam opening.
Foreign particles mixed in toner cartridge. Replace faulty
cartridge.
"Printing the maintenance
3-3. White line appears
4-8.