From one copy to the next, printer worked fine, then blank pages ever since, no matter what.

[Trillyumyum]

There are no error messages, it completely acts like it is printing, just the pages are blank.  Literally 5 minutes earlier it printed fine. In the time it takes to write a check and return to copy it, the page copying the check came out blank, and have been --no matter what--ever since, be it printing from the computer, or copying . I have replaced the black ink cartridge, cleaned the print heads, turned it off then back on, turned it off and unplugged it. ... The pages still come out blank.  I checked to see if lighter/darker got bumped ...but that was set on normal, and I then changed it to darkest--still blank pages.  So odd!!  Thank you so much for help/ideas!!

[Trillyumyum]

I just tried printing color and that is working. In the print diagnostic that finally came out in color for the first time, the box for black is totally blank

[Kumar0307]

@Trillyumyum, Welcome to the HP Support Community!

I'm afraid this seems like an hardware issue with the printhead of the printer. If you have tried all the troubleshooting steps mentioned in this document and the issue persists, please contact our HP Support team for Service Options as it could be a possible hardware issue:

1) Click on this link - https://support.hp.com/us-en/contact-hp?openCLC=true

2) Select your product type below.

3) Enter the serial of your device.

4) Select the country from the drop-down.

5) Select the appropriate option based on your preference.

6) Fill the web-form and proceed further.

Keep me posted for any other assistance.

If you feel my post solved your issue, please click “Accept as Solution”, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!