HP Pro 4300 C9H70UT C9H70UT#ABA manual Replace the Dimm or

Table 42. Numerical printer messages (continued)

Message	Description		Action
Continued	Continued		Continued
49.XXXX			11. Replace the DIMM or
PRINTER ERROR				EIO device caused the error
				message.
			12. Remember to reconnect all of
				the cables that connect the
				printer to the network or
				computer.
			13. If this error message persists,
				replace the firmware DIMM.
				See “Firmware DIMM” on
				page 160.
			14. Replace the formatter
				assembly. See “Formatter
				assembly” on page 161
49.24.02	The printer has experienced a		1.	Verify that the ribbon cables
PRINTER ERROR	critical error.			are fully seated in the
				connectors on the
				DC controller PCA.
			2.	Replace the power supply.
				See “Power supply” on
				page 188.
			3.	Replace the
				DC controller PCA. See
				“DC controller PCA” on
				page 181.
			4.	Replace the formatter
				assembly. See “Formatter
				assembly” on page 161.
50.X	A fuser error has occurred.		1.	Turn the printer off and allow
FUSER ERROR				it to cool down.
For help press	X	Description	2.	Verify that the correct model
	1	low fuser temperature		of fuser is installed.
	2	fuser warmup service	3.	Verify that the correct voltage
	3	fuser over temperature		fuser is installed.
	4	faulty fuser	4.	Reinstall the fuser, and check
	5	incorrect fuser is installed		the connection between the
	6	open fuser circuit		fuser and the printer. Replace
				the connector if it is
				damaged.
			5.	Replace the fuser.
			6.	Replace the
				DC controller PCA. See
				“DC controller PCA” on
				page 181.
			7.	Replace the power supply.
				See “Power supply” on
				page 188.

284 Troubleshooting Q2431-90912