Lexmark Printer, J110 manual Index Card/Sensor Service Check, Transport Service Check, 4085-001

4085-001

Index Card/Sensor Service Check

	FRU	Action
1	Index motor does	If the index motor does not work, see “Index Motor
	not work.	Service Check” on page 2-56 . If the index motor
		is working correctly see “Index System Test” on
		page 3-33 . If the test fails, replace the index/
		encoder disk assembly. See “Encoder Disk Feed
		Roller Assembly Removal” on page 4-34 .
2	Index Sensor	To check the sensor, see the “Index System Test”
		on page 3-33 .

Transport Service Check

Note: If the carrier strikes the left side frame and continues to drive into the frame, then see page 2-48. Go to the “Carrier System Test” on page 3-32 .

	FRU	Action
1	Transport Motor	Check the motor for binds, or loose motor pulley.
		Disconnect the transport motor (J5) from the
		engine board. Check for approximately 12 ohms
		between pins 1 and 2 on the motor cable. If the
		reading is incorrect, replace the motor.
		Check for motor pins shorted to the motor
		housing. If you find a pin shorted to the housing,
		replace the motor. If the failure remains, replace
		the engine board.
2	Maintenance	If access door switch does not work or carrier
	Homing Sensor	does not move, see the “Maintenance Station
		Service Checks” on page 2-55 .
3	Engine Board	Disconnect (J2) from the engine board and check
		for approximately +29 V dc between
		(J2-1) and ground. If incorrect, replace the engine
		board.
4	Carrier Guide	Clean the carrier rod.
	Rod	Note: Lubricate the rod and the carrier rod
		bearing surface. Do not use excess lubricant. Take
		care to protect the encoder strip from grease.

Diagnostic Information 2-67