HP 8000 s manual = Description

Message	Description	Recommended Action
49.XXXX ERROR	Indicates that a firmware error	Verify that all cables are
CYCLE POWER	has occurred, or corrupt data	connected. Turn the printer off
	was sent to the printer.	and on to reset the printer. If
		the condition persists, contact
		a local authorized HP dealer
		or service representative for
		service.
50.X FUSER ERROR	Indicates that a fusing	Turn the printer off and on to
CYCLE POWER	assembly malfunction has	reset the printer.
	occurred.
		For a 50.3 error, turn the
	X = Description	printer off for 30 minutes to
	1 = Low Temperature Error	allow the fuser to cool, and
	2 = Warmup Error	then turn the printer on.
	3 = High Temperature Error
	4 = Fuser Drive/Power Unit	If the condition persists,
	Error	contact a local authorized HP
	6 = Heater Error	dealer or service
		representative for service.
51 LASER ERROR	Indicates that a laser	Turn the printer off and on to
CYCLE POWER	malfunction has occurred.	reset the printer. If the
		condition persists, contact a
		local authorized HP dealer or
		service representative for
		service.
52 SCANNER ERROR	Indicates that the scanner	Turn the printer off and on to
CYCLE POWER	motor is not turning properly.	reset the printer. If the
		condition persists, contact a
		local authorized HP dealer or
		service representative for
		service.

132 7 Printer Control Panel Messages EN