Lexmark X500n Service Manual - Page 90
Jitter service check
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7100-XXX Jitter service check Uneven optical density appears periodically in horizontal direction. Problem area 1 Photodeveloper cartridge 2 Main motor assembly 3 Developer drive assembly Action Replace faulty photodeveloper cartridge. See "Photodeveloper cartridge removal" on page 4-8. Note: Photodeveloper cartridge is a customer order supply. • Irregular rotation of main motor assembly • Main motor assembly gear unit failure • Variation of OPC belt running speed due to failing main motor assembly Replace main motor assembly. See "Main motor assembly removal" on page 4-26. Replace faulty developer drive assembly. See "Developer drive assembly removal" on page 4-22. 2-52 Service Manual
2-52
Service Manual
7100-XXX
Jitter service check
Uneven optical density appears periodically in horizontal direction.
Problem area
Action
1
Photodeveloper cartridge
Replace faulty photodeveloper cartridge. See
“Photodeveloper cartridge removal” on page 4-8
.
Note:
Photodeveloper cartridge is a customer order supply.
2
Main motor assembly
•
Irregular rotation of main motor assembly
•
Main motor assembly gear unit failure
•
Variation of OPC belt running speed due to failing main
motor assembly
Replace main motor assembly. See
“Main motor assembly
removal” on page 4-26
.
3
Developer drive assembly
Replace faulty developer drive assembly. See
“Developer
drive assembly removal” on page 4-22
.