CognitiveTPG A760 - Manual (Page 65)

A760 User Guide: Programming Supplement
Chapter 4: Programming commands
65 Revision F January 2010
Select the current logo (downloaded bit image)
ASCII GS # n
Hexadecimal 1D 23 n
Decimal
29 35 n
Range of n: 0 – 255
Default: 0
Selects a color or monochrome logo to be defined or
printed. The active logo n remains in use until this
command is sent again with a different logo n.
When this command precedes a logo definition, that
definition is stored in flash memory as logo n. If there is
already a different definition in flash memory for logo n,
the first is inactivated and the new definition is used. The
inactive definition is not erased from flash and continues to
take up space in flash memory.
When this command precedes a logo print command and
n is different from the previously active logo selected,
the printer retrieves the logo definition for n from flash
memory and prints it. If there is no definition for logo n,
then no logo is printed.
In the case of a previously existing application that
expects only one possible logo, the printer will not
receive the select current logo (1D 23 n) command. In
this case, the printer assigns 0 as the active logo identifier.
It automatically stores any new logo definition in flash
memory as logo 0, inactivating any previous logo 0
definition. If the flash memory space available for logos
fills up with inactive logo 0 definitions, the firmware
erases the old definitions at the next power cycle. This is
the only case in which the printer erases flash memory
without an application command.
In the case of a new application using multiple logos,
the select current logo (1D 23 n) command is used. After
that, the printer no longer automatically erases the logo
definition flash memory page when it fills with multiple
definitions. A new application using multiple logos,
writing a user-defined character set into flash memory, or
both, is responsible for erasing the logo and user-defined
character set flash memory page when the logo area is full
or before a new character set is defined.
Exception
This command is only valid for the receipt station,
However, it will processed correctly, regardless of whether
the receipt station is currently selected.