Lexmark 5016-001 manual All Blank Page Service Check, Itm

5016-001

All Blank Page Service Check

	FRU	Action
1	Intermediate	An ITM unit may cause an all blank copy. Try a
	Transfer Unit	new ITM if available.
	(ITM)
2	Transfer Roller	Note: The transfer roll is spring loaded against
		the inner cover so that it properly contacts the
		transfer belt in the ITM unit.
		Check the transfer roll for correct installation. Be
		sure the transfer roll rotates freely. Check the
		left and right side transfer roll springs and
		bushings for any signs of binding or damage.
		Replace any parts as necessary.
3	High Voltage	Check the high voltage contacts in grid blocks 1
	Contacts	and 2 to ensure they are clean, not bent,
	Grid Block 1	deformed or pitted. If incorrect, replace the
	Grid Block 2	failing grid block assembly.
	HVPS	Be sure the HVPS is correctly and securely
		mounted to the HVPS mounting bracket and
		grid block assemblies. If correct, remove the
		HVPS and be sure the high voltage contacts
		align with the contacts on the HVPS. Also look
		for signs of pitting or damage.
4	Engine Board	Check the cable for proper installation and
	Printhead Cable	continuity.
	Engine Board	•	If the continuity is incorrect, replace the cable.
		•	If correct, replace the engine board.
5	Printhead	The printhead may be the cause, but should
		only be replaced after a new toner cartridge(s)
		or ITM has been replaced.

Diagnostic Information 2-81