How to Setup a Printer A few key steps to ensure that your printer is properly installed and ready to use. Here's a general guide: Plug in the printer's power cable to the outlet . Before doing anything else, it's important to make sure your printer is plugged in and ready . Connect the included cable (usually a  USB   cable ) from the printer to the computer or laptop. Note:   The process will be different if you're using a  wireless printer.