Print's erratic caracteres instead of the correct paper

[DuarteNuno]

I 've already deleted and reinstalled multiple times the printer. Cleaned the print queue under system preferences. Result is always da same. Sometimes just by sending a document with a single page it prints instead 2 or 3 pages with erratic letters symbols and numbers. The printer is connect by airport. 

When a use a different print (hp inkjet) the result is ok.

[Kumar0307]

@DuarteNuno, Welcome to the HP Support Community!

• Which application are you trying to print from?
• Have you tried printing different types of documents like PDF, Word, or Webpages and check if the issue persists?
• Try making a standalone copy and check if that prints fine. By this, we can conclude if this is a hardware or a driver issue.

Update the printer firmware

Click here to download and install the latest printer firmware from your MAC.

Click here to know different methods of updating printer firmware.

Also, check for any software updates on MAC

Click the Apple icon > About This Mac > Software Update and install any available update.

Perform the troubleshooting steps from this document - Fixing Poor Print Quality

You may also refer to - Print quality troubleshooting guide

Hope this helps! Keep me posted. 

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