Epson TM-L90 series, Programming Manual

Page: 349 / 679

C O N F I D E N T I A L
Paper roll Bar code commands GS k Ver. 10.01 p. 349
[Notes for JAN13/EAN13 (
m
= 2, 67) process]
■
Modular check character (1 character) is processed as follows:
• Automatically added when processing data is 13 byte.
• The 13th byte data is processed as a modular check character when processing data is 13 byte. In this
case, modular check character is not checked.
■
Left guard bar/center bar/right guard bar are added automatically.
[Notes for JAN8/EAN8 (
m
= 3, 68) process]
■
Modular check character (1 character) is processed as follows:
• Automatically added when processing data is 7 byte.
• The 8th byte data is processed as a modular check character when processing data is 8 byte. In this case,
modular check character is not checked.
■
Left guard bar/center bar/right guard bar are added automatically.
[Notes for CODE39 (
m
= 4, 69) process]
■
The printer processes the start character (ASCII = */ Hex = 2Ah/Decimal = 42) as follows:
• When the first bar code ( d1 ) is “ * ”, the printer processes the data as a first character.
• If the first bar code ( d1 ) is not “ * ”, the printer adds a start character ( * ) automatically.
■
The printer processes the start character (ASCII = */ Hex = 2Ah/Decimal = 42) as follows:
• When the last bar code ( dk or dn ) is “ * ”, the printer processes the data as a last character.
• If the last bar code ( dk or dn ) is not “ * ”, the printer adds a last character ( * ) automatically.
• When “ * ” is processed during bar code data processing, the printer processes “ * ” as a stop character.
The printer prints data preceding “ * ” and finishes command processing. Therefore, data following “ * ”
are processed as normal data.
■
Check digits are not calculated and added.