The USB cable used for printers is called a USB AB cable, named for the plugs on each end. The USB-A end is a flat, rectangular plug; the USB-B end is a square plug with two curved edges, which goes into the printer.
Standard type-A (computer) connector at one end, standard type-B (printer) connector on opposite end
USB 2.0 A Male to USB 2.0 B Male USB Extension Cable
USB 2.0 Interface,compatible with USB 1.1