TH320/TH420
Programmers Guide
49
Select the current logo (downloaded bit image)
ASCII
GS # n
Hexadecimal
1D23n
Decimal
2935n
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 are 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 definitions. 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.
Define downloaded bit image
ASCII
GS * n1 n2 d1 ... dn]
Hexadecimal
1D 2A n1 n2 d1 ... dn]
Decimal
29 42 n1 n2 d1 ... dn]
Value of n1
See the following table
Value of n2
See the following table
Value of d
See the following table
Summary of Contents for TH320
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Page 121: ...TH320 TH420 Programmers Guide 113 Character Sets Character code 437 USA Standard Europe ...
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Page 142: ...Programmers Guide TH320 420 134 TH420 Additional Features ...
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