Stays on.

[Opduffs2]

My HP 8710 is relatively new.  A few weeks.    It used to go to sleep ( turn off the touch screw) after a few minutes.   Now it stays woken up (screenon) continually.   I have tried turning off and on.   And even rebooted my router.   Nothing has helped.   I’m sure there is some setting or something.    Hwlp

[Raj1788 · Accepted solution]

@Opduffs2

Welcome to the HP Support Community

I suggest you do a Hard Reset on the printer

(1) Turn the printer on, if it is not already on.

(2) Wait until the printer is idle and silent before you continue.

(3) With the printer turned on, disconnect the power cord from the rear of the printer.

(4) Unplug the power cord from the wall outlet.

(5) Wait at least 60 seconds.

(6) Plug the power cord back into the wall outlet.

NOTE: HP recommends connecting the printer power cord directly to the wall outlet.

(7) Reconnect the power cord to the rear of the printer.

(8) Turn on the printer, if it does not automatically turn on.

The printer might go through a warm-up period. The printer lights might flash, and the carriage might move.

Wait until the warm-up period finishes and your printer is idle and silent before you proceed.

Update the firmware for the printer using this link: https://support.hp.com/us-en/product/hp-officejet-pro-8710-all-in-one-printer-series/7902014/documen...

Restart the printer.

Manage power

Use Sleep Mode and Schedule Printer On/Off to conserve electricity.

Sleep mode

Power usage is reduced while in Sleep mode. After the initial setup of the printer, the printer will enter Sleep mode after five minutes of inactivity.

Use the following instructions to change the period of inactivity before the printer sleeps.

1. From the printer control panel, touch or swipe down the tab at the top of the screen to open the Dashboard, touch.

2. Touch Sleep Mode, and then touch the desired option.

Schedule On and Off

Use this feature to automatically turn the printer on or off on selected days. For example, you can schedule the printer to turn on at 8 a.m. and turn off at 8 p.m. from Monday to Friday. In this way, you save energy during the night and weekends.

Use the following instructions to schedule the day and time for On and Off.

1. From the printer control panel, touch or swipe down the tab at the top of the screen to open the Dashboard, touch .

2. Touch Schedule Printer On/Off.

3. Touch the desired option, and follow the onscreen messages to set the day and time to turn the printer off and on.

Keep me posted, how it goes!

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!

Cheers:)

[Opduffs2]

I am the original poster. Opduffs2.  After trying everyone’s suggestions except reinstalling firm ware.    I removed the phone line plug at the printer. 

  It worked by the way.   That solved the problem. 

I have since replaced the wire with a new one.  All is well.    Thanks for the help.  

[Raj1788]

@Opduffs2

I'm glad to hear you found the solution you were looking for.

Thanks for taking the time to let the community know about the solution!

Take care now and do have a great week ahead.

:)Cheers:)