HP Pro 4300 C9H70UT C9H70UT#ABA manual See Fuser on, Configuration page on

Table 41. Alphabetical printer messages (continued)

Message	Description	Action
INSTALL FUSER	The fuser is either not installed or	1.	The fuser is not fully seated
For help press	not correctly installed in the		or has been removed and
	printer.		must be reinstalled for
			printing to continue. See
			“Fuser” on page 162.
		● If the fuser is in the printer,
		remove and reinstall it.
		● If the fuser is not in the printer,
		install it.
		2.	Push the fuser firmly into the
			printer until the blue levers on
			both sides click into place.
		3.	Press the HELP (	) button for
			detailed information.
		4.	Press the UP ARROW (		)
			button and the
			DOWN ARROW (	) button to
			step through the instructions.
		5.	If the error persists, verify that
			the fuser connector
			(J128 for the
			HP LaserJet 4200; J228 for
			the HP LaserJet 4300) is
			good.
		6.	Replace the fuser assembly.
			See “Fuser” on page 162.
		7.	Replace the DC controller
			PCA. See
			“DC controller PCA” on
			page 181.
		8.	Replace the power supply.
			See “Power supply” on
			page 188.
LOAD TRAY XX:	Tray XX is either empty (based on	1.	Press the HELP (	) button
<TYPE> <SIZE>	the operation of the paper sensor)		for detailed information.
For help press	or configured for a type and size	2.	Press the UP ARROW (		)
	other than that specified in the		button and the
alternates with	job.		DOWN ARROW (	) button to
			step through the instructions.
LOAD TRAY XX:		3.	Print a configuration page
<TYPE> <SIZE>			and verify that the tray
TO USE ANOTHER			settings are correctly set. See
TRAY PRESS			“Configuration page” on
			page 241.
		4.	If the tray settings on the
			configuration page do not
			match the actual tray setting,
			verify that the indicated tray’s
			paper width switch (SW102,
			SW801, or SW1) is operating
			correctly. See figure 213 on
			page 336, figure 217 on page
			340, or figure 220 on page
			343.

262 Troubleshooting Q2431-90912