Epson 570e User Manual - Page 210

The valid data for each barcode type is described below. If invalid data is included in the barcode data string, the barcode is not printed. Barcode type EAN-13 EAN-8 UPC-A UPC-E Interleaved 2 of 5 POSTNET Code 39 Code 128 Barcode data 0-9 (Hex 30-39) 0-9 (Hex 30-39) 0-9 (Hex 30-39) 0-9 (Hex 30-39) 0-9 (Hex 30-39) 0-9 (Hex 30-39) 0-9 (Hex 30-39), (Hex 41-5A), (Hex 20, 24, 25, 2B, 2D, 2E, 2F) Set A, Set B, Set C The following conditions are required for barcode printing: ❏ Barcode printing is always performed unidirectionally. However, when it is mixed with raster bit image data, neither barcode nor raster bit image data is printed. ❏ A barcode is not printed when part of the barcode extends beyond the right margin. ❏ When barcode data and text data are mixed in a data sequence, barcodes and text are printed in the same place. ❏ The start and stop (*) characters of Code 39 are added to human readable characters. ❏ The initial data of Code 128 (Set A, B, or C) is identified as the first data of Code 128, and must be hexadecimal (41, 42, and 43, respectively). ❏ When Code 128 Set C and Interleaved 2 of 5 are selected, barcode data requires an even number data string. However, if an odd number string is sent, a 0 is automatically added, making it an even number data string. ❏ The barcode print start position (except for POSTNET) is always 40/360 inch above the baseline. C-18 Specifications