Lexmark 5021-0XX - Manual (Page 198)

2-120 Service Manual
5021-0XX
Vertical white band service check
White band appears in vertical direction of printed image.
Problem area Action
1 Toner cartridge Replace faulty toner cartridge.
2 Photodeveloper cartridge Replace faulty photodeveloper
cartridge. See
“Photodeveloper
cartridge removal” on page 4-11 .
3 Transfer belt unit TReplace faulty transfer belt unit. See
“Transfer belt unit removal” on
page 4-7
.