12-8   Macros EN
ROM-Based Macros 
Macros can be supplied in ROM (read only memory), such as custom 
macro cartridges or on SIMM modules. The following considerations 
apply to all ROM-based macros.
z ROM-based macros include the macro ID numbers for their 
macros. These numbers cannot be changed. It is possible for 
a downloaded macro to be assigned the same ID number as 
a ROM macro. If this occurs, the downloaded macro has 
precedence. To access the ROM macro, the downloaded 
macro must be deleted.
z The ID numbers for ROM-based macros range from 0-32767.
z In case of conflicting ID numbers in ROM-based macros, the 
following priorities apply: 
1 Cartridge macros. (In printers that have two cartridge slots, 
one cartridge has priority over the other. This priority 
depends on the printer. Refer to Appendix E of the PCL 5 
Comparison Guide for the macro cartridge priority.) 
2 SIMM macros. SIMM 1=highest, then SIMM 2, etc. 
Example
To define a macro with an ID of 7, send:
E
C
&f7y0X
z
z
z
escape sequences, control codes, and data
z
z
z
To stop the macro definition, send:
E
C
&f1X
To make the macro with an ID of 7 permanent, send:
E
C
&f7y10X