HP 4500 HP Color LaserJet 4500, 4500 N, 4500 DN Printer - User Guide, C4084-90 - Page 131
DIMM. See appendix A for, Failed RAM test
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Printer Control Panel Messages (continued) Message Description Recommended Action 53.XY.ZZ PRINTER ERROR Indicates a memory error. If a DIMM Clear the error by turning the 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 54.X PRINTER ERROR 55 DC CONTROLLER ERROR ZZ Error Number 0 Unsupported memory 1 Unrecognized memory 3 Failed RAM test An error has occurred where X is indicated below. 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 The print engine is not communicating with the formatter. Clear the error by turning the printer off and then on. If the problem persists, call service. Clear the error by turning the printer off and then on. If the problem persists, call service. EN Chapter 8 131