!R!
215
!R! — PRESCRIBE start sequence
Format
!command-recognition-character!
Parameter
command-recognition-character:
capital R, unless changed by the SCRC or FRPO P9 command
Function
When the printing system receives !R!, it enters PRESCRIBE mode and treats the
following data as PRESCRIBE commands. The command that follows the !R! command
should be separated from the !R! by a space or placed on a new line.
The command recognition character can be changed from capital R to another character.
Temporary changes can be made using the SCRC (Set Command Recognition Character)
command described later. The RES command restores the command recognition
character to its FRPO-set value. Permanent changes can be made with the FRPO
command described in Chapter 6 of the Technical Reference manual.
If !R! is used by mistake when the printer is already in the PRESCRIBE mode, the
printer ignores the mistaken !R! and whatever follows, up to the next semicolon.
File
!R! SFNT ’Helvetica’, 14; EXIT;
Following these five
lines, the printer
enters PRESCRIBE
mode to execute
commands.
!R! UNIT I;
BOX 2, 2;
BOX 1, 1, E;
CIR 1;
BOX 1, 1;
PAGE;
EXIT;
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