Do you want to copy and scan alongside printing? Get an all-in-one printer for at home. An all-in-one printer is a printer you can use to print, scan, and copy. You can also often automatically print in duplex with these printers, so you save time and paper. There are also all-in-one printers with an automatic document feeder. that allow you to copy a stack of paper in one go. Do you want to fax too? Get a 4-in-1 model.