Epson 570e User Manual - Page 208

Barcode commands Your printer has powerful barcode printing capabilities and includes the following resident barcode fonts: EAN-13, EAN-8, Interleaved 2 of 5, UPC-A, UPC-E, Code 39, Code 128, and POSTNET. See the barcode commands below: ESC ( B Select Barcode Printing Format: ASCII code: ESC ( B m n Decimal: 27 40 66 m n Hexadecimal: 1B 28 42 m n Function: ESC ( B n1 n2 k m s v1 v2 c data n = (n1 + (256 × n2)) k: Select barcode k = 0: EAN-13, 1: EAN-8, 2: Interleaved 2 of 5, 3: UPC-A, 4: UPC-E, 5: Code 39, 6: Code 128, 7: POSTNET m: Module width (180 dpi) m = 2: 2 dots, 3: 3 dots, 4: 4 dots, 5: 5 dots s: Space adjustment value -3 ≤ s ≤ 3 (1/360-inch units) v1, v2: Bar length v1 + v2 × 256 (1/180-inch units) Note: ❏ The v1 and v2 values are ignored when POSTNET is selected. ❏ The long bar length of POSTNET is always 0.125 inch; the short bar length is always 0.050 inch. C-16 Specifications