Why is my Mac not connecting to my printer anymore?
To troubleshoot your connections, disconnect every cable between the printer and computer, then reconnect, making sure that the connections are tight. Each Mac model has several USB ports; if your printer still doesn’t work after reconnecting the cables, try another USB port.
How do I fix my printer settings on a Mac?
0:072:43How to Change Print Settings in MacOS | HP Printers | @HPSupportYouTubeStart of suggested clipEnd of suggested clipMake sure your printer is selected and then click show details if this option is displayed to accessMoreMake sure your printer is selected and then click show details if this option is displayed to access print settings.