Lexmark Dot Matrix Technical Reference - Page 29
Command Structure
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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 The printer commands use ASCII; the decimal and hexadecimal digits are shown for your convenience. Most commands have the following structure (spaces have been added for readability; do not include spaces when you type the command): ESC & a n C data & Parameterized character from ASCII table range 33-47 decimal. a Group character from ASCII table range 96-126 decimal that specifies a group type of control. n Value within specified numeric range, from ASCII table range 48-57, 45, 46 decimal. If a value is not specified, a value of 0 is assumed. C Termination character from ASCII table range 64-90 (47-122 w/chaining) decimal. data Binary 8-bit data (from graphics, and so on). The value field specifies the number of bytes of binary data. 29 Section 3: IBM Emulation Mode Printer Commands