Lexmark Dot Matrix Technical Reference - Page 28

Code Name Symbol Description Value (Dec) Carriage CR Return Moves the current print position to the left 13 margin of the current line. Double- SO Wide Printing by Line Prints all characters in double-width 14 mode. Condensed SI Printing Condenses printing from 10 characters per 15 inch (cpi) to 17.1 and 12 cpi to 20. Select DC1 Selects the printer. 17 Printer Select 10 DC2 cpi Returns condensed printing to normal (10 18 cpi) Deselect DC3 Printer Signals the printer to stop accepting data 19 from the computer. This control code has no effect on the parallel interface. Cancel DC4 DoubleWide Printing by Line Cancels double-width printing mode and 20 returns printing to normal. Cancel Data CAN Clears current line buffer of data already 24 received to print on the current line since last Form Feed, Line Feed, Carrier Return, or Cancel. Space SP Moves the print position one character 32 space to the right. Value (Hex) 0D 0E 0F 11 12 13 14 18 20 Escape Sequences An escape sequence (two or more characters of information) lets you change the way the printer is currently printing. Like a control code, it gives you control over the printed output. The escape sequence begins with the character ESC (decimal 027, hexadecimal 1B). The printer recognizes this character as the beginning of a printer command signalling that the information that follows is control information and not data to be printed. Printer Command Parameters A command parameter sets the value for a command. This value stays constant until either a different value resets the command or a command resets the printer to its default values. For example, after the printer receives a command 28 Section 3: IBM Emulation Mode Printer Commands