Prints corrupted by extra black printed

[MrKokholm]

Black cartridge prints out extra black over the text...  Check out the attached scans of the errors on image (word document, text completely corrupted)

[Jay_G24]

Hi @MrKokholm,

Welcome to the HP Support Community

 I'd like to help!

I understand you are facing a print quality issue

To assist better-

1) Does the copy print out the same way? 

2) What's the application you are trying to print from? Have you tried printing from a different application or device? 

While you respond to that, let's print a Print Quality Diagnostic page -

Load plain white paper in the tray.

Print the report.

Printers with a touchscreen or menus: On the printer, open the Settings or Setup menu, touch Tools or Reports, and then touch Print Quality Report or similar.

Post the Print Quality Diagnostic page here so we can help you further. 

You may also refer to this document with steps to fix the " Print Quality Issues" issue applicable to your printer -  Print Quality Issues

 Also, try updating the printer's firmware - HP Printers - Updating or Upgrading Printer Firmware 

Hope this helps! Keep me posted.  

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