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‎09-17-2025 12:25 PM

HP Recommended

printer error message B85785B0

1 REPLY 1

‎09-20-2025 02:34 AM

HP Recommended

Hi there @debsacks, and welcome to HP Support Community!

 

Thank you for reaching out with your concern. I'm glad to assist you today.

The error code B85785B0 appears to be a firmware-related internal system error, typically seen in HP printers when there's a fault in the printer's internal software or hardware communication. Here's how you can resolve it:

Restart the Printer

  • Turn off the printer using the power button.
  • Unplug the power cord from the wall outlet and wait for 60 seconds.
  • Plug it back in and turn the printer on.

This clears temporary memory issues and may resolve the error.

Update Printer Firmware

Outdated firmware can cause internal errors like B85785B0. To update:

  • Visit the Official HP® Support
  • Enter your printer model and download the latest firmware.
  • Follow the on-screen instructions to install it.

Alternatively, you can use the HP Smart App or HP app:

Check for Hardware Issues

If the error persists:

  • Ensure there are no paper jams or obstructions inside the printer.
  • Check that ink cartridges and printheads are properly seated and compatible.
  • Refer to HP Printer Error Codes Guide for more details.

If the suggestions helped solve the problem, please let us know by clicking “Accepted Solution.” It really helps fellow users find quick answers.

 

A quick “Yes” also goes a long way in showing appreciation!

Take care and happy computing!

 

Best regards,

Max3Aj

HP Support

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