... paper width 3, ideal for different bill printing 4, USB/BLUETHOOTH/RS232 interface USB desktop printers SpecificationsPrinting SpecPrint Methodthermal linePrint Speed50mm/sResolution8dot/mm ... ASCII 96; 6x8dot matrix ASCII 352Control Systeminterfaceparallel interface/serial interface/USB/BLUETOOTH/irDAprinter buffer memory32Kcommand systemESC/P printing command,and compatible ...