Lexmark 5021-0XX manual Switch locations on, On page 4-70for steps to

5021-0XX

Step	Questions / actions	Yes	No
5	If waste toner bottle is	Replace	Go to step 6.
	removed, reinsert it.	developer motor.
	Ensure rear cover	See “Developer
	assembly is shut. Override	motor removal”
	top and front cover	on page 4-31.
	interlock switches. For	Go to step 8
	location, see “Interlock
	switch locations” on
	page 5-8. Reconnect
	operator panel. Turn printer
	on. Allow printer to run until
	error posts. Disconnect
	connector from developer
	motor and check the
	following on disconnected
	cable connector:
	Pin 4 to pin 5— 24VDC
	Pin 6 to pin 5— 24VDC
	Pin 10 to pin 5— 5VDC
	Are voltages present?
6	Remove I/O board shield.	Go to step 7.	Replace cable.
	See “I/O board removal”		Retest printer. If
	on page 4-70for steps to		error clears,
	remove I/O board shield.		problem solved,
	Disconnect DCN11 from		otherwise go to
	I/O board. Check for		step 7.
	continuity and shorted pins
	on cable that connects
	DCN11 to developer motor.
	Is cable okay?

2-46Service Manual