Unisys E-@CTION EFP9800 - Manual (Page 166)

EFP9800 ESC/POS Commands
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Flash Memory Commands
These commands copy user-defined character sets or logos to the printer’s flash
memory. Depending on the command chosen, the object stored in flash memory
is then copied to RAM when the printer is powered up, or kept in flash memory
for later use. Either way, it is available from the flash memory whenever
needed.
These commands are only available for the EFP9800 ESC POS emulation.
Copy Downloaded Object to Flash Memory
Copies the current downloaded object to flash memory. The object can either
be a user-defined logo as defined by the Define Downloaded Bit Image
command (1D 2A), or a user-defined character set as defined by the Define
User-Defined Characters command (1B 26).
When the printer is powered up, or reset with the Initialize Printer command
(1B 40), the object is restored to RAM from the flash memory. This function of
the command is the same as the Copy the Object from Flash Memory to
External Ram command (1B 7D 03), described later in this section.
Anything previously copied to flash memory is lost. If no object has been
downloaded, nothing is copied to flash memory or enabled.
After the application sends 1B 7D 00, it must wait for the printer to return
hexadecimal 0D before sending any more data. Any data sent by the application
before it receives this response will likely be lost. If the application is unable to
receive a response from the printer, it must wait for five seconds after sending
1B 7D 00 before sending any more data.
Hexadecimal Decimal ASCII
1B 7D 00 27 125 0 ESC } NUL
When user-defined characters (not logos) are copied to flash memory, the
following occurs:
•
If no user-defined characters have been downloaded to the printer with the
Define User-Defined Characters command (1B 26), nothing is copied to
flash memory.