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Solving The HP LaserJet Enterprise M601 M602 M603 M604 M605 M606 Printer 55. WX.YZ error

Troubleshooting The HP LaserJet Enterprise M601 M602 M603 M604 M605 M606 Printer 55. WX.YZ error Issue

Solving The HP LaserJet Enterprise M601 M602 M603 M604 M605 M606 Printer 55. WX.YZ error


What it Means

The 55. WX.YZ: DC controller error to continue turn off then on. The 55 error are related to the printer's DC Controller communication and memory.


• 55.00.00 - DC controller internal communication error.

• 55.00.01 - DC controller memory error.

• 55.00.03 - DC controller no engine response.

• 55.00.04 - DC controller communications time out.

• 55.00.05 - Hardware memory error.

• 55.01.06 - NVRAM memory data error warning.

• 55.02.06 - NVRAM memory access error warning.


Course of action:

  1. Before replacing any printer parts verify all connectors on the HP Printer's DC Controller are properly seated and not damaged.

  2. Turn the HP printer off and re-seat the printer's Formatter and turn printer back on to see if error message clears.

  3. If the printer was trying to perform a FW upgrade when error occurred, resend FW upgrade.

  4. With 55 error displayed, press Engine Test switch.

  • If Engine Test page prints correctly, replace the HP Printer's Formatter

  • If Engine Test page does not print, replace the HP Printer's DC Controller


Other Helpful Resources

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