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Black not printing / HP OfficeJet Pro L7590

Black not printing - I get NOTHING, not even a black smudge. Other colors are fine.
I've installed 3 new cartidges, no help Readout says I have plenty of ink.
I've cleaned the printheads 3 times, no help.
I've removed the printheads and swabbed them with a q-tip and rubbing alcohol (a tip from a computer guy at Staples), no help.

Do I have to buy a new printhead?

Or would you try something else first.

Printer is almost new - purchased only 5 months ago.

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  • Anonymous May 21, 2009

    I have the same problem, same printer. Emails to/from HP have not solved it yet. All the above has been tried, no help. MARIEL



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Good on you for trying all of the above, if your printer has a print head problem you can find out easily by going into your printer toolbox.

Double click the HP Digital Imaging Monitor on the taskbar to the left of the clock.

when it opens click Settings=>Printer Settings=>Printer Toolbox

Ink levels will be displayed there, If the Black ink is showing empty the sensor for that cartridge must be dead(three strikes), Call HP and request a warranty replacement, or, take it back to staples as they generally handle 1 year in the store.

If the black in is showing here then the sensor is good, click the Information tab at the top of this window, then click Printhead Health. If the Black/Yellow is yellow or red Call HP and they should issue you a new one under warranty. If it is green this is not the problem.

Continue by closing that window, then Clicking Settings=>Printer Settings=>Printer Settings

Click on the Colour tab then switch the printer to greyscale and try printing again.

If this doesn't clear the head it may simply be caked or have an airlock.

To ensure it isn't caked simply soak the head in rubbing alcohol 2-3mm deep on the head for an hour or so, then replace it and try again.

Unfortunately if none of these work you may be stuck dealing with HP for a warranty exchange, click support then click chat with an online support technician.

or talk to your staples rep about having it replaced through the instore warranty if you have instore coverage.

Hope this helps FixYa,


Posted on May 19, 2009

  • cathybonner1 Feb 11, 2011

    I tried all of this for my 6500 hp printer and there was a LOT of black ink that came out of the printerhead. Unfortunately, the black cartridge is still not printing at all. Luckily when I purchased this printer along with my computer system, I purchased a 2 year TSP extended warranty with Staples. I will take it down there tomorrow to see what is the problem. Thank you for your help as I learned an awful lot about how to troubleshoot my printing problems on my own without having to take my device to Staples for every small problem.



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