HP Pro 4300 C9H70UT C9H70UT#ABA 59.00, 59.10, 59.20 Motor, Or 59.4 EP Motor failure, LJ 4300 only

Table 42. Numerical printer messages (continued)

Message	Description		Action
59.XY	A printer-motor error has		59.00, 59.10, 59.20 Motor
PRINTER ERROR	occurred.		failure
For help press			1. Turn the printer off and then
	X Description
			on.
alternates with	0	main-motor error	2. Reconnect the main-motor
	1	motor startup error	wire-harness on the
59.XY	2	motor rotation error	DC controller PCA
PRINTER ERROR	4	EP-motor error (LJ 4300 only)	(location J98)
To continue turn off then on	A	EP-motor error (LJ 4300 only)	3. Replace the main motor. See
	Y	Description	“Main motor” on page 177.
			4. Replace the DC controller
	Y = 0		PCA. See
			“DC controller PCA” on
			page 181.
			59.A or 59.4 EP Motor failure
			(LJ 4300 only)
			1. Turn the printer off and then
			on.
			2. Reconnect the EP-motor
			wire-harness on the
			DC controller PCA (location
			J86).
			3. Replace the print-cartridge
			motor. See “Print-cartridge
			motor (HP LaserJet 4300
			series printer only)” on
			page 175.
			4. Replace the
			DC controller PCA. See
			“DC controller PCA” on
			page 181.
59.2	The main motor is not functioning		1. Turn the printer off and then
MAIN MOTOR ROTATION ERROR	correctly.		on.
			2. Reconnect the main-motor
			wire-harness on the
			DC controller PCA
			(location J98)
			3. Replace the main motor. See
			“Main motor” on page 177.
			4. Replace the DC controller
			PCA. See
			“DC controller PCA” on
			page 181.

Q2431-90912 Chapter 7 Troubleshooting 289