HP Pro 4300 C9H70UT C9H70UT#ABA manual Print-cartridge motor, Assembly. See Tray 2 lifter

Table 42. Numerical printer messages (continued)

Message	Description	Action
59.4	The print-cartridge drive motor	1.	Turn the printer off and then
EP MOTOR ROTATION ERROR	(LJ 4300 only) is not functioning		on.
(LJ 4300 only)	properly.	2.	Replace the print cartridge.
		3.	Reconnect the EP-motor
			wire-harness on the
			DC controller PCA
			(location J86).
		4.	Replace the EP motor. See
			“Print-cartridge motor
			(HP LaserJet 4300 series
			printer only)” on page 175.
		5.	Replace the
			DC controller PCA. See
			“DC controller PCA” on
			page 181.
60.2	The tray 2 lifter-motor is not	1.	Turn the printer off and then
PRINTER ERROR	functioning.		on.
		2.	If the error persists. turn the
			printer off.
		3.	Verify that the tray 2 lifter
			wire-harness is full seated in
			its connector on the
			DC controller PCA
			(location J93).
		4.	Replace the tray 2 lifter-driver
			assembly. See “Tray 2 lifter-
			drive assembly” on page 179.
		5.	Replace the
			DC controller PCA. See
			“DC controller PCA” on
			page 181.
60.3	The tray 3 lifter-motor is not	1.	Turn the printer off and then
TRAY 3 LIFTER MOTOR FAILURE	functioning.		on.
		2.	If the error persists. turn the
	Tray 3 can be a 500-sheet feeder		printer off.
	or 1,500-sheet feeder accessory.	3.	Verify that the tray 3 lifter
			wire-harness is fully seated in
			its connector on the sheet
			feeder PCA.
		4.	Replace the tray 3 lifter-driver
			assembly. See “500-sheet
			feeder lifter-drive assembly”
			on page 209 or “1,500-sheet
			feeder lifter-drive assembly”
			on page 222.
		5.	Replace the tray 3 feeder
			controller PCA. See
			“500-sheet feeder
			control PCA” on page 207 or
			“1,500-sheet feeder
			control PCA” on page 220.

290 Troubleshooting Q2431-90912