white blocks on paper

[kozo18]

My printer recently started randomly printing even white lines horizontally across the paper (including quality tests) at equal intervals.

Tried cleaning nozzles, removing cartridges, and cleaning feed rollers but nothing worked. Looks too precise to be caused by dirt. Can I please get assistance?

[Irfan_06]

Hi @kozo18,

Welcome to the HP Support Community.

Thank you for posting your query, I will be glad to assist you.

I see that you are facing an issue with print quality on your Printer.

A) Please follow the steps below to perform a power drain.

1) Take out the cartridges

2) Unplug the power cord from the printer & wall.

3) Press and hold the power button down for 15 seconds and release the power button, wait for about 30 seconds.

4) Plug the power cord back into the printer and wall, ensure the printer is plugged into the wall & not into a surge protector.

5) Insert the cartridges back into the printer.

Remove the cartridges > Unplug the power cord > Wait for 30 seconds > Plug the power cord back in > Insert the cartridges

B) Kindly refer to the steps on this link to update the printer firmware and let me know if that resolves the issue.

C) Refer to the steps on this link to further troubleshoot.

D) If the issue still persists, refer to the steps on this link to restore factory defaults and let me know if that resolves the issue.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

I hope this helps.

Take care and have a great day ahead!

Irwin6

HP Support