hp officejet 6962 one day printing great then the next will not print black

[jhigley1971]

I don't know what happened, but my printer was printing fine then a few days later I tried printing and it won't print in black.  I tried another printer in my home and wierdly enough, it wouldn't do black either.  same computer different printer.  That one is an hp envy pro 6400.  It almost looks like a problem in my software, but I can't figure it out.  I have tried 3 different black print cartriges in the officejet.  The envy, I don't know the first thing about using, as it belonged to my deceased father.  He always complained it didn't work for him.  

[Betty0610]

@jhigley1971

Welcome to the HP Support Community.

Are you able to copy in black? This would rule out a hardware issue with the Printer.

Try a firmware update:https://support.hp.com/us-en/document/ish_1776648-1643972-16

Let me know if this helps.

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