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HP Color LaserJet 2820

Error Codes List page 3

  • Code: 79
  • Display: 79 Error Turn off then on
  • Description: The device has experienced an internal firmware error.
  • Remedy: Turn off the power by using the power switch, wait at least 30 seconds, and then turn on the power and wait for the device to initialize. If you have recently installed a memory DIMM in the device, turn off the device, remove the memory DIMM, reinstall the DIMM to verify that it is seated properly, and then turn on the device. If a surge protector is being used, remove it. Plug the device directly into the wall socket. Use the power switch to turn the device on. If the error persists, upgrade the firmware. If the error persists, replace the formatter.
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