Lexmark 5021-0XX manual Jitter service check, Cartridge removal on, Main motor assembly removal on

5021-0XX

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 4-11.
		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 4-38.
3	Developer drive assembly	Replace faulty developer drive
		assembly. See “Developer drive
		assembly removal” on page 4-32.

Diagnostic information 2-109