The Selphy CP500 is about the size of a thick paperback, though there's a
separate black power supply block and a cassette carrying the 6 x 4-inch
postcard blanks, which clips in at the front. You also need to allow a
space on your desk at the back of the printer, to accommodate each card
as it's fed out during the printing process. Various other paper sizes,
including credit card, are available, with separate cassettes and ink
film cartridges for each.