Epson ColorWorks C7500 ESC/label Command Reference Guide - Page 10
Command Basic Specifications
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1.3. 1.3.1 1.3.2 Command Basic Specifications Format Commands and Control Commands Commands for ESC/Label command belong to either format commands or control commands, depending on their purpose and execution priority. Format commands are used for defining and printing labels, and control commands are used for controlling the printer. Format commands and control commands have their own fixed prefix character, so the type can be determined based on the prefix character in the command code. Format commands are executed FIFO (First In, First Out). A part of control commands are executed with priority over format commands. Table 1.3.1 Command Type by Purpose Type Main purpose Prefix character Format Command Defining and printing labels Caret Control Command Controlling the printer Tilde Basic Data Format for the Command ESC/Label command is defined in a character string of ASCII code (20h to 7Eh). The command format is as follows. (,,...) : : : Indicate a format command with a caret and a control command with a tilde . Indicate the command type with 1 to 3 characters of ASCII code. Designate 1 character or more of ASCII code. This controls the command functions. Whether there are parameters or not and their number depend on the command type. The is defined as both the and the . Commands without a parameter will be a command with just the command code. Commands with 2 or more parameters must be punctuated by a comma when listed. The number of parameters a command can have depends on the command type. ESC/Label Command Reference Guide Rev. E Page 10