HP7855 Hangs

[stbeaver]

Printer hangs on HP logo at boot. First "dot", progress bar at 100%. Tried disconnecting power for 2 hours and press and hold power button. Same results. Please advise.

[Kumar0307]

@stbeaver, Welcome to the HP Support Community! I’m here to help.

It seems like the printer is stuck at the initialization screen. A factory reset will not work in this case. For a factory reset to work, you will have to access the home screen of the printer bypassing the error.

Reset the printer

1. With the printer turned on, disconnect the power cord from the rear of the printer.
2. Wait at least 60 seconds.
3. Reconnect the power cord to the rear of the printer.
4. Turn ON the printer, if it does not automatically turn on.
5. Wait until the printer is idle and silent before you proceed.

Note: HP recommends connecting the printer directly to a wall outlet rather than a surge protector or a power strip.

If this does not help, unplug the power cable and hold the power button down for 10-15 seconds and release it. Power on the printer and check.

If the issue persists, please reach out to the HP Technical Support team in your region regarding the service/replacement options for your printer. 

You may create a case on the website to obtain a case number if required. Kindly watch this video to know how.

Keep me posted for any other assistance.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

Have a great day! 

[RickRzes]

My printer worked fine for years... I unplugged it for a few months as didn't need it. Plugged it in and now it hangs on the first dot.... tried unplugging it, plugging it back in and nothing happens.. always stuck at fir dot.