An All-in-One Printer is a versatile device that combines multiple functionalities into a single unit, including printing, scanning, copying, and sometimes faxing. It integrates these functions to streamline tasks and save space.

An all-in-one printer – or MFP (multifunction printer), 4-in-1 or 3-in-1 – includes printing, copying, scanning and, in some cases, faxing capabilities. All-in-one printers can come with a variety of secondary features as well, including wireless connectivity, the ability to read media cards, the ability to print directly from a DSLR or digital camera, and versatile media options including photo paper, envelopes and business cards.

At a minimum, an all-in-one printer will print, copy and scan. A device that performs just these three functions is a 3-in-1; a 4-in-1 includes a fax function. Even if a fax machine is not built into the hardware, you can still fax from an all-in-one printer. You can send and receive faxes over the Internet; look for the I-Fax function on select Canon imageCLASS devices. You can also scan the document on your device, then use an online fax service to transmit it.