TransAct Ithaca 280 Programmer's Manual page 168

Programming Codes
Function Send Character Definition
ASCII [ESC] + 5 <low byte length> <high byte length>
Hexadecimal 1BH 2BH 35H
Decimal <27> <43> <53>
Description The [ESC] + 5 command is sent before sending the character definition.
The format of this character definition uses the ―HP PCL Soft Font
Design‖ version 4 (PCL4). The description of PLC Soft Font technology is
not discussed here. Not all of the values in the character definition are
used, but they should be set to a reasonable value in case they are used
in future implementations.
printing use of the printer.
Function Delete Current Selected Soft Font
ASCII [ESC] + 6
Hexadecimal 1BH 2BH 36H
Decimal <27> <43> <54>
Description The [ESC] + 6 command deletes the current selected font from RAM. It
will not delete a font from flash memory for from ROM
NOTE: This command will reselect the last used internal font. If another
soft font is to be used, it must be selected.
Function Delete All Soft Fonts
ASCII [ESC] + 7
Hexadecimal 1BH 2BH 37H
Decimal <27> <43> <55>
Description The [ESC] + 7 command deletes all the soft fonts from RAM. It will not
delete a font from flash memory for from ROM
NOTE: This command will reselect the last used internal font.
Function Query Soft/RAM Font Information
ASCII [ESC] + Q
Hexadecimal 1BH 2BH 51H
Decimal <27> <43> <81>
Return 64 bytes of font header.
Description The [ESC] + Q command will return the raw font header data for the
currently selected font.
Function Copy Soft Font from RAM to User memory/flash memory.
ASCII [ESC] + U
Hexadecimal 1BH 2BH 55H
Decimal <27> <43> <85>
Description The [ESC] + U command will copy the currently selected soft font from
RAM to user/flash memory to make the font permanent.
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This command is not used during normal
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280 Programmer's Guide