HP 4500 N manual Printer Error, Rom, Ram, DC Controller

Printer Control Panel Messages (continued)

Message	Description		Recommended Action
53.XY.ZZ	Indicates a memory error. If a DIMM		Clear the error by turning the
PRINTER ERROR	caused the error, the DIMM will not		printer off and then on. Verify
	be recognized. Values of X, Y, and Z		that the DIMM is correctly
	are as follows:		installed. If the DIMM is
			correctly installed, replace the
	X	Memory Type	DIMM. See appendix A for
	0	ROM	DIMM installation instructions.
	1	RAM	If the problem persists, call
			service.
	Y	Device Location
	0	On board
	1	DIMM Slot 1
	2	DIMM Slot 2
	3	DIMM Slot 3
	ZZ	Error Number
	0	Unsupported memory
	1	Unrecognized memory
	3	Failed RAM test
54.X PRINTER	An error has occurred where X is		Clear the error by turning the
ERROR	indicated below.		printer off and then on. If the
			problem persists, call service.
	X	Description
	1	Internal power failure
	2	Carousel rotation failure
	3	Density sensor out of range
	4	Optional equipment not
		available
	5	Waste toner sensor
		malfunction
55 DC CONTROLLER	The print engine is not		Clear the error by turning the
ERROR	communicating with the formatter.		printer off and then on. If the
			problem persists, call service.

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