donmillie wrote:
My MacBook is unable to print or scan to my HP printer. I get the following message: “Matterhorn.framework” will damage your computer.
It used to print and scan and stopped recently, but I can still print from my iPad and iPhone.
Any suggestions?
Do not feel alone here, there is currently a HP issue…And we are flooded with similar complaints
Open >System Preferences>Software Update (Command R will reload and do a fresh check)
Update: HP Printer Software 5.1 should now be becoming available through Software Update to fix this issue.
(2220 UTC 23 October 2020)
If you still have an issue, delete the existing printer in
> System Preferences> Printers & Scanners, and add it again.
Connect an AirPrint printer to a Wi-Fi network - Apple Support.
https://support.apple.com/en-us/HT201900
you can also try reset print system if necessary:
If you can't print from your Mac or iOS device - Apple Support
https://support.apple.com/en-us/HT203343
If you are still at a loss:
download this package which will update drivers AND THE CERTIFICATE:
ftp.hp.com/pub/softlib/software12/HP_Quick_Start/osx/Installations/Essentials/hp-printer-essentials-S-5_14_8_4.pkg
or
contact https://123.hp.com/us/en/