Firmware update failed HP Color LaserJet 5550 DTN - HP Enterprise Business Community

Firmware update failed HP Color LaserJet 5550 DTN - HP Enterprise Business Community

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日期:2025-05-13
You can send firmware.rfu file using parallel cable (using copy /b fw.rfu lpt1: ) only if printer displays SEND RFU NOW (or similar). Try resetting NVRAM, and, if this doesn't help, buy Firmware DIMM. To initialize NVRAM 1 Turn the printer on and watch th...看更多