My printer does not print since I updated my MacBook Pro

[Conroy1]

After I updated to OS 11.5.2 my HP Photosmart 7520 keeps giving me a paper size incorrect messagePrint.  I have unplugged printer and power cord, realigned all paper, and even made sure the page settings were correct.  

[Kumar0307]

@Conroy1, Welcome to the HP Support Community! I’m here to help.

I understand you are not able to print from your Mac. To assist you better,

• 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?
• Check the print settings on the app, you may refer to - HP print settings guide

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.

Install the printer using the AirPrint driver (recommended)

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, 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 click Add Printer or Scanner, click the printer name. 

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

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

Try printing.

Hope this helps! Keep me posted. 

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Have a great day!