End Macro Definition; Defining A Macro - Brother HL-1050 Technical Reference Manual

7.2.

Defining a Macro

To define a macro you must first assign an ID number to it, then send to the printer a Start Macro Definition
command, the macro definition itself (consisting of a sequence of PCL commands) and finally an End Macro
Definition command.
7.2.1. Macro ID
Esc&f#Y (27)(38)(102)#(89)
 This command assigns an identity number to a macro that is to be downloaded, or references an existing
macro in the printer's memory.
 # is the ID number of a macro. The ID number must be in the range 0-32767.
 If you specify the ID number of an existing macro and then download a new macro definition to the printer,
the new macro will overwrite the existing macro.
7.2.2. Start macro definition
Esc&f0X (27)(38)(102)(48)(88)
 This command signifies that the following commands constitute a macro definition.

7.2.3. End macro definition

Esc&f1X (27)(38)(102)(49)(88)
 This command terminates the macro definition.
<1Bh><26h><66h>#<59h>
<1Bh><26h><66h><30h><58h>
<1Bh><26h><66h><31h><58h>
CHAPTER 2 PCL - 102