printer goes on its own

[GWKL]

My printer spits out pages with indiscriminate writing, using about 5 lines, spits out page and REPEATS until out of paper!!!

HP Officejet pro 8025

[Hawks_Eye]

Hi @GWKL,

Welcome to the HP Support Community! 

Thanks for posting your query! We're here to help you get back up and running.

Try the below suggestions-

Reset the product

With the printer turned on, disconnect the power cord from the rear of the printer.
Unplug the power cord from the wall outlet.
Wait at least 60 seconds.
Plug the power cord back into the wall outlet.
Reconnect the power cord to the printer.
Turn the printer on. HP recommends plugging the printer directly into a wall outlet.

Update the firmware on an HP printer

HP regularly releases new firmware versions for printer enhancements, app updates, or issue fixes. Update the firmware regularly to get the most out of your printer.

Click on the link below for instructions on how to update the firmware of your printer.
https://support.hp.com/in-en/document/ish_1776648-1643972-16

HP provides a free tool called HP Print and Scan Doctor to diagnose and resolve printing and scanning problems.

Download and run HP Print and Scan Doctor from the link below to quickly and automatically perform several troubleshooting tasks known to resolve this issue. 
When this link is clicked, HP Print and Scan Doctor is downloaded using your Internet browser's download capabilities.
Link: https://support.hp.com/in-en/help/printscandoctor

We're thrilled to have the opportunity to assist you and provide a solution. We hope our assistance has been helpful! 

If this solution hit the spot, please come back and click "Accepted Solution" to help others find the answer. And if you'd like to say thanks, select "Yes" on the bottom left of the public post, as that would make our day! 

Take care, and have an amazing day! 

Regards, 
Vince_0406