@midiweka, Welcome to HP Support Community!
Is it an issue with all applications or just one application?
Update the printer firmware
HP regularly releases new printer firmware versions with product enhancements or issue fixes. Depending on your printer, apps on the printer control panel might also receive updates. Update firmware and apps on a regular basis to make sure you are getting the most out of your printer. Refer to this link for help.
Refer to this document HP Printers - Print Settings Guide (Mac) to change the print settings
Refer to this document HP Printers - How to Print on Both Sides of the Paper (Duplex) (Mac) to know more about duplex printing.
Keep me posted for further assistance.
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TEJ1602
I am an HP Employee