Lexmark Forms Printer 2581 Technical Reference - Page 23
Escape Sequences, Printer Command Parameters, Command Structure
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Draft document 2-3 Escape Sequences 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 signaling that the information following 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 that selects a right margin beginning at column 63, the right margin of each printed page begins at column 63. The margin remains constant until a right margin command with a different value resets the margin, or the printer is reset. In this section, command parameters are indicated by a lowercase n. Usage Notes explain how to compute this parameter. Command Structure Data is pending. Example of IBM Emulation Mode Printer Command Data is pending.