
Press and hold Option, then choose Apple menu > System Information. If your printer is connected to your computer’s USB port, check the System Report to see that it has an active connection. If you use a shared printer connected to another Mac, make sure the Mac has macOS 10.5 or later installed, isn’t in sleep, and has sharing turned on. If the network has multiple printers, check which printer you chose-it may be different from the one you think you chose. If the printer is on the network, make sure your Mac and the printer are still on the same network, the printer is turned on, and the network isn’t experiencing problems. If your printer is connected to your Mac, make sure the printer cable is firmly connected, and the printer is plugged into an electrical outlet, and turned on. If you’re having trouble printing, first try these suggestions:

Install and reinstall apps from the App Store.
