Print Printing Method Thermal Line Printing Speed 30mm/s or 20 lps Resolution: 8 dots/mm, 384 dots/line Effective Printing Width 48mm Character Character Set IBM Character set II,GB2312-80(Chinese) Print Font ANK: 12 x24 Chinese: 24 x 24 Character per Line 32 Paper Spec Paper Type Thermal paper Paper Dimension 57.5?0.5mm x 40.0mm Paper Thickness 0.06 to 0.07mm Paper Supply Method Easy loading Reliability MCBF 15 million lines TPH 50km Barcodes EAN-13, EAN-8, UPC-A, UPC-E, CODE39, CODE93, CODE128, CODABAR, INTERLEAVED 25 Emulation ESC/POS Driver Windows98/2000/NT/XP/CE Sensor Paper End Sensor Interface RS-232, IrDA, Bluetooth(Optional) Receive buffer size 24K bytes Flash size 2M, 4M, 8M optional Power Supply (Adapter) Rechargeable 7.2V DC/ 1.5A (Li-ion) Battery duration 1 hour continuous printing Physical Weight 275g (Including battery & roll paper) Dimension (WxLxH) 102 x 77 x 44mm Color Beige Environment Operating Temp 5~ 45 癈 Storage Temp -20~70癈 Operating Humidity 20~85% Storage Humidity 5~95% Option Rechargeable Battery Carrying Leather Case Buckle