Lexmark 23B0225 Technical Reference - Page 43
Command Structure, Control Codes, Commands
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2-31 PCL Command Structure This section introduces the different types of PCL emulation commands and their structure, or syntax. It also demonstrates how you can link commands to abbreviate them. Control Codes Control Codes are single-character instructions. Table 2-9: Control Codes Code Dec Hex Function BS 8 08 Backspace HT 9 09 Horizontal Tab LF 10 0A Line Feed FF 12 0C Form Feed CR 13 0D Carriage Return SP 32 20 Space SI 15 0F Primary Font SO 14 0E Secondary Font Result Moves the cursor toward the left margin one horizontal space equal to the last printed character Moves the cursor to the next defined tab stop Advances the cursor to the same horizontal position on the following line as determined by either the Vertical Motion Index (VMI) or Set Line Spacing command Advances the cursor to the same horizontal position at the top margin of the next page Moves the cursor to the left margin Moves the cursor to the right one column Selects the primary font Selects the secondary font Commands PCL commands are multibyte strings (also known as "escape sequences") that begin with the Escape control code (ESC, ←, decimal 27, or hexadecimal 1B). The ESC control code notifies the printer that the characters that follow are to be interpreted as part of a command and are not control codes or data to be printed.