Why won’t my HP printer print from my Apple laptop?
This is due to a code-signing snafu affecting macOS Catalina (version 10.15) and Mojave (10.14), specifically. HP’s printer driver software is cryptographically signed with a certificate that macOS uses to determine whether the application is legit and can be trusted.
Why is my HP printer not responding to my Mac?
Click the Apple menu , click System Preferences, and then click Printers & Scanners or Print and Scan. Right-click or control + click anywhere in the Printers list, and then click Reset printing system. Click Reset to confirm. Type the administrator name and password, and then click OK to complete the reset.
Why is my printer connected but not printing Mac?
Check the queue windows for other printers, or try printing again, making sure you choose the correct printer. To check the print queue for other printers, choose Apple menu > System Preferences, then click Printers & Scanners . Select a printer in the list, then click Open Print Queue.