A Canon all-in-one printer prints, scans, and copies. Every Canon all-in-one printer is a color printer and has WiFi. With Canon WiFi printers, you can connect multiple devices and print wirelessly. A few all-in-one Canon printers also print in duplex, faxes, and have an automatic document feeder. Make sure that you know beforehand what you want to use your Canon all-in-one printer for and choose the model that suits you best.