HP 2500 HP PCL/PJL reference - Printer Job Language Technical Reference Manual - Page 24

Format of PJL Commands All PJL command lines follow one of the following four formats. Each format defines how commands using that format are structured. Format #1 %-12345X The only command that uses this format is the Universal Exit Language (UEL) command. Format #2 @PJL [] This format allows a PJL line with no command, and is used to add clarity to PJL command listings. You can use one or more of these commands to visually break up several lines of PJL commands. Format #3 @PJL command [] [] The COMMENT and ECHO commands currently are the only PJL commands using format number 3. Format #4 @PJL command [command modifier : value] ~ [option name [= value]] [] This format is used for all of the other PJL commands and is described in more detail below. command - command is one of the assigned PJL command names, such as ENTER, RDYMSG, or RESET. [command modifier : value] - The command modifier enables the user to specify what is effected by the command. For example, with the command modifier LPARM you can specify language-specific variables. A PJL command with a command modifier of LPARM : PCL only affects PCL-specific settings. A PJL command can contain only one command modifier. For example, in the command: @PJL SET 2-4 PJL Command Syntax and Format EN