Chapter 11: Bar Code Commands for 24-Pin Printers120Table 95: IBM/Epson Select UPC A Command —Start/Stop Codes and Center Bars for Parameter n5 Values (24-Pin Printers)Value of n5 Start Code Center Bar Stop Code123456712/360"18/360"27/360"33/360"42/360"48/360"57/360"28/360"38/360"53/360"63/360"78/360"88/360"103/360"12/360"18/360"27/360"33/360"42/360"48/360"57/360"UPC A Parameter n8This parameter sets whether or not the readable characters are printed.n 8 = 1: print readable charactersn 8 = 0: do not print readable charactersPrint UPC A Bar Code CommandThe command for printing a UPC A bar code isESC DLE B m [data]where parameter m designates the number of characters which will follow in the data. If youwish to include a check digit, enter the ASCII character @ (64 Dec, 40 Hex) at the end of thedata.UPC E Bar Code CommandsUPC E bar coding is a six-digit variation of UPC A, used for labeling small items. The digits canbe any ASCII character from 0 to 9 (48 to 57 Dec, 30 to 39 Hex).Select UPC E Bar Code CommandThe command for selecting UPC E isESC DLE A m 1 4 n 3 n 4 n5 0 0 n 8UPC E Parameters n3 and n4These parameters set the vertical length of the bars in units of 15/180", as calculated by theequation[(n 3 x 10) + n 4 ] x 15/180"where the total value must be less than or equal to 25.
