Printer does not print black

[chrisl290]

No error messages, other colours OK

[Kumar0307]

@chrisl290, Welcome to the HP Support Community!

Check ink levels, and then replace low or empty ink cartridges.

Clean the printhead automatically

1. On the printer control panel, press the Down Arrow  to select Settings, and then press OK.

2. Press the Down Arrow to select Tools, and then press OK.

3. Press the Down Arrow to select Clean Printhead, and then press OK.

   The printer cleans the printhead, and then prints a test page.

Print a print quality report

1. Load plain, white paper into the paper tray.

2. On the printer control panel, press the Down Arrow  to select Settings, and then press OK.

3. Press the Down Arrow to select Tools, and then press OK.

4. Press the Down Arrow to select Print Quality Report, and then press OK.

If the issue persists, you may have to replace the black ink cartridge.

Hope this helps! Keep me posted. 

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Have a great day! 

[chrisl290]

I think you misunderstand. The HP Deskjet 3520 printer prints correctly with all 3 colours but not black. All standard printer testing shows completely blank as far as the black is concerned. I have tried multiple cartridges. It has worked fine for some years so I know how to install cartridges and set up the paper. The ink levels are fine. The black ink is not getting through and it appears it is blocked from doing so. Do I have to buy a new printer or is there an easy way to clear this suspected blockage?

[Kumar0307]

@chrisl290

I understand, and the steps I provided is to resolve black not printing issue. If you have tried the steps mentioned and the issue persists, I'm afraid this is a hardware failure with the printer as you have used alternate black ink cartridges. 

Please reach out to the HP Technical Support team in your region regarding the service options for your printer. 

You may create a case on the website to obtain a case number if required. Kindly watch this video to know how.

Keep me posted for any other assistance.