The black printing is blurred. Color is ok.

[Mercedes28]

In a document the text printed in black is blurred  ( like it prints it double). In color is ok and also when I print the evaluation reports from the printer everything is fine. 

[Jay_G24 · Accepted solution]

Hi @Mercedes28,

 I'd like to help!

To better assist you - 

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 devices? 

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

Print a Print Quality Diagnostic page in Windows

Use HP Printer Assistant to print a Print Quality Diagnostic page in Windows.

1. Load plain paper into the input tray.

2. Search Windows for your printer model name, and then click the printer name in the list of results.

   HP Printer Assistant opens.

3. Click Print & Scan, and then click Maintain Your Printer.

   The printer toolbox opens.

4. On the Device Services tab, click Print Quality Diagnostics Page.

Print a Print Quality Diagnostic page in Mac

Use HP Utility to print a Print Quality Diagnostic page in macOS or OS X.

1. Load plain paper into the input tray.

2. Click the Apple menu, and then click System Preferences.

3. Depending on your operating system, click Print & Scan or Printers & Scanners.

4. In the Print & Scan or Printers & Scanners window, select your printer, and then click Options & Supplies.

5. Click Utility, and then click Open Printer Utility.

   HP Utility opens.

6. Click Print Quality Diagnostics, and then click Print.

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 for 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. 

And, Welcome to the HP Support Community

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!