Epson TM-T90 Printer User Manual


 
CONFIDENTIAL
Paper roll Two-dimension code commands GS ( k
Ver. 10.01 p. 544
When mode 3 is selected, the Primary Message includes all data except following.
When using Mode 2 or 3, execute the process as listed below:
(
RS
,
GS
indicates control code of MaxiCode (
RS
= 1EH,
GS
= 1DH). “
yy
” indicates numeric data of 2 byte.)
a) When the top of symbol data is “[)>”
RS
“01”
GS
yy
”, these 9 bytes of data are treated as header
– Next data of the header is treated as Primary Message.
– When printing, header is set to top of Secondary Message.
b) When the top of symbol data is not “[)>”
RS
“01”
GS
yy
”, the data is treated as Primary Message.
c) In Primary Message,
GS
separate message into Postal code and ISO country code and Class of service.
This
GS
is disregarded.
d) In Primary Message, it does not check each code.
(ex: specified Postal code and correct Postal code. etc.)
e) All data of Secondary message is treated as symbol data. (In Secondary Message,
GS
is treated as
symbol data.)
In mode 4, 5 and 6, all of the data in the symbol storage area is treated as Primary Message and Secondary
Message. It does not check each code.
MaxiCode employs the Reed-Solomon Error Detection and Correction algorithm for error correction
codeword.
The following data are added automatically by the encode processing.
Finder Pattern
Orientation Pattern
Error correction codewords
Mode indicator
Pad codeword
Factor of Primary Message Number of data Character
Postal code 1 ~ 6 byte Code set A
ISO country code 1 ~ 3 byte Numeric
Class of service code 1 ~ 3 byte Numeric