Barcode scanners; Document printers for use with computers; Computer printers for printing documents; Print heads for document printers and plotters; Bar code printers; Dot matrix printers; Photo printers; RFID readers; Radio frequency identification (RFID) tags; Document printers for computers; Downloadable computer software for word processing; Thermal printers; Document printers; Downloadable computer operating programs and computer operating systems; Ticket printers