• ×
    Information
    Windows update impacting certain printer icons and names. Microsoft is working on a solution.
    Click here to learn more
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Windows update impacting certain printer icons and names. Microsoft is working on a solution.
    Click here to learn more
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Experiencing 'Printer Blocked' or 'Printer Error' message? Click here for more information.
Check some of the most frequent questions about Instant Ink: HP INSTANT INK, HP+ PLANS: INK AND TONER.


Check out our Black or Color Ink Not Printing, Other Print Quality Issues info about: Print quality and Cartridge Issues.
Locked

‎10-11-2020 05:18 PM

HP Recommended
Product: HP LaserJet Pro 300 color MFP M375nw
Operating System: Microsoft Windows 10 (64-bit)

hello dear people - I'm hoping someone can help break the madness of the 79 service error. Upgraded our router last night and since then our HP LaserJet Pro 300 color MFP M375nw has entered the never ending cycle of 79 service error, power off and on, madness. I've tried to reset it - it can't be reached through a usb cable, the online wizards don't think it needs a firmware update and I can't even get it to print a test page. It will photocopy. Any ideas before I take it to the curb to be hauled away with the rest of 2020 🙂

 

Thanks in advance.

Category:
2 people had the same question
1 REPLY 1

‎10-11-2020 05:46 PM

HP Recommended

Disconnect all cabling from the device and wait five minutes. Then plug in the power cable and power unit on to see if it comes to ready when not attached to the network. If it does, then likely you may have a corrupted driver. Delete all drivers from your computer and reinstall as if it was a new printer. Were you connecting via network before or via usb? You may need to try an NVRAM reset. I have sent you a PM with instructions.

If you find the information provided useful or solves your problems, help other users find the solution easier by giving kudos and marking my post as an accepted solution.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.

Didn't find what you were looking for? Ask the community

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.