I have an iMac and an HP all in one ;printer. All of a sudden nothing will print in color.

[McBride2]

cartridges are full and I've done all troubleshooting on the printer.    HELP

[Raj2111]

Hi @McBride2 

Welcome to the HP Support Community!

I understand the printer is not printing in color from the Mac. 

Try making a standalone color copy from the flatbed glass and check if that works. 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 the printer firmware.

Also, check for any software updates on Mac

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

Open a document, photo, or webpage, clickand  File > Print to open the Print window.

Make sure your printer is selected, and then click Show Details if it displays to access the print settings available for your printer.

Make sure the black and white box is not checked.

Refer to this document for more info on resolving this issue - Black or Color Ink Not Printing, Other Print Quality Issues

If the issue persists, reinstall the printer using the Airprint driver

1.) Click the Apple menu, click System Preferences, and then click Print & Scan or Printers & Scanners. 

2.) Check if your printer name displays in the Printers list, If your printer is listed, click the printer name, and click the minus sign to delete the printer. 

3.) If you see multiple printer queues for the same printer, remove all extra printers by selecting them one at a time, and then clicking the minus button at the bottom of the list. 

4.) Click the plus sign , Add Printer or Scanner, and click the printer name. 

5.) Click the Use or Print Using menu, and select AirPrint in the pop-up menu. Then click Add. 

Note: Select "Bonjour multifunction" under kind while installing.

Try printing.

Hope this helps!

Please perform these steps and Feel free to reply to your public post for any further assistance.

Thank you for being a Valuable Member of our HP Family.

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

-Regards,