Print method    9-pin, Serial Impact Dot Matrix Print font    7 x 9 / 9 x 9 Column Capacity    40 / 42 or 33 / 35 Character size(mm)    1.2 (W) x 3.1 (H) / 1.6 (W) x 3.1 (H) Character set    95 Alphanumeric, 37 International, 128 x 12 Graphic English, Traditional Chinese, Thai and Vietnamese Character per inch    17.8 / 16 cpi or 14.5 / 13.3 cpi Interfaces    RS-232, Bi-directional parallel, Dealer Option: USB, 10 Base-T I/F Data Buffer    4 KB or 40 bytes Print Speed    4.7 lps (at 40 columns, 16 cpi) 6.0 lps (at 30 columns, 16cpi) Dimensions(mm)    57.5 ± 0.5, 69.5 ± 0.5, 76.0 ± 0.5 (W) x dia. 83.0 Thickness(mm)    0.06 to 0.085 Copy Capability    One original and one copy Inked Ribbon    ERC-38 (Black, Black / Red) Ribbon Life    Black : 3 x 106 characters, B / R : 15 x 105 characters (Black), 75 x 104 characters (Red) Power    AC adaptor (included) Power Consumption    Approx. 31 W D.K.D.Function    2 drivers MTBF    18 x 104 hours MCBF    18 x 106 lines Overall Dimensions(mm)    Type A : 160 (W) x 286 (D) x 157.5 (H) Type B : 160 (W) x 248 (D) x 138.5 (H) Type D : 160 (W) x 248 (D) x 138.5 (H) Weight(Approx.)    Type A : 2.7 Kg Type B : 2.5 Kg Type D : 2.3 Kg EMC Standards    VCCI class A, FCC class A, CE marking, AS / NZS 3548 class B Power Supply    Exclusive AC adaptor (included) Factory Option    Near-end sensor Option    Wall-hanging bracket WH-10 Safety Standards    UL / CSA / TÜV (EN60950)