Font Font A : 12 x 24 / Font B : 9 x 17 / Kanji : 24 x 24 Column capacity Font A : 48 columns Specification:Printing Method Thermal line Paper Path Curve or Straight or Drop in Print Font  Font Font A :                       12 x 24 / Font B : 9 x 17 / Kanji : 24 x 24  Column capacity Font A :     48 columnsCharacter size                     1.25 (W) x 3.0 (H) mm (Font A) / 0.88 (W) x 2.13 (H) mm (Font B)Character set 95 Alphanumeric, 37 International, 128 x 11 Graphic Interface RS -232 / IEEE 1284 Bi-directional parallel, USB Data buffer 4KB Print Speed (Max.)               150 mm / sec.Paper Dimensions                79.5 ± 0.5 mm x dia. 254 mm max. Paper Thickness                  0.06~0.15 mm (~ 0.18 mm for HF )Power                                 24 VDC ± 2.4 V Power consumption Approx. 1.75 A(print duty 25%)Operating Temperature          -15 to 70°C (without BA-T500 S eries ) Reliability MCBF                   37,000,000 linesReceipt printing - Printer life Mechanism : 15,000,000 lines , Thermal head :                     100 km (62.14 miles )Overall Dimensions               126.9 (W) x 91.9 (D) x 57.5 (H) mm Mass Approx.                       550 g Power Supply (option) PS -180 Factory Options Mark sensor, Autocutter Type