Resetting the printing system on a Mac can resolve problems such as print jobs stuck in the queue, connection issues, and incomplete driver setups. Note: A printing system reset removes all HP and non-HP printers and scanners, and clears all print jobs and saved print settings. Download the latest drivers, firmware, and software for your HP OfficeJet Pro 7740 Wide Format All-in-One Printer series. This is HP’s official website to download the correct drivers free of cost for Windows and Mac. Download the latest drivers, firmware, and software for your HP DeskJet 3750 All-in-One Printer. This is HP’s official website to download the correct drivers free of cost for Windows and Mac. HP Recommended. 01-28-2020 UPDATE: macOS Catalina 10.15.3 contains the fix for this issue . Once the macOS is updated you can scan from the glass and ADF as normal, t hanks for sharing @IronBadger. Follow and check HP Support for any updated drivers in the future, HP Easy Scan is not currently supported on Catalina. Installation Software and Full/Basic Driver-Supports print and scan functionality only (1) Download the latest drivers, firmware, and software for your HP DeskJet Ink Advantage 2135 All-in-One Printer. This is HP’s official website to download the correct drivers free of cost for Windows and Mac. The printer worked fine with the older mini, but wont' work with the newer mini. I unstalled the HP drivers which were transferred from the older mini to the newer one. I then installed new drivers from the HP site that were supposed to be for High Sierra. However, I keep getting the same "printer not connected" message when I try to print On your Mac, go to 123.hp.com . Type your printer model in the search box, and then review the drop-down list. If your printer is listed, an HP driver or app is available. Select your printer, click Next, and then follow the instructions to download and install software. If your printer is not listed and the Next button is disabled, an HP Once you have uninstalled the printer software, reset the printing system. Restart the MAC and connect the printer to your computer and run an Apple update. HP Printers - Installing a Mac Printer Driver Using Apple Software Update. This should resolve the issue you are facing. HeZPOO.