TransAct Epic 3000, Руководство программиста

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Epic 3000 Programmer’s Guide Programming Codes
100-14362 Rev A Page 99
Code 128 Auto Encoding
To have the printer selected code set and automatically generate an optimal barcode,
the value of Code should be the length.
Function Code 128 Automatic Encoding
ASCII [ESC] b <2> <Length>{information}
Hexadecimal 1BH 62H <2> <Length>{information}
Decimal <27> <98> <2> <Length>{information}
If the first character <Length> is from 1 to 31, the printer will automatically select Code
A, B, or C depending on the data present. If the data is all numeric, the data can be
printed as pairs. This effectively doubles the amount of data that can be printed. The
check digit is generated and printed by the printer. In this mode the exact data sent to
the printer is encoded. There is no offset, function code, or shift code requirements.
For example the following is printed in a mixture of code A and C encoding:
[ESC] b <2> <10>NUM 123456
Figure 10 Automatic Encoding Example
Note: If the first character is greater than <31> and not <135> through
<137>, the printer will discard the first character and print the data as
defined in Code A.
In automatic mode, any ASCII data from 0 to 127 could be entered. Values less than 32
will be encoded as Code stick A NUL- US, values from 96 through 127 will be encoded
from Code stick B. Where ever possible numeric pairs will be encoded from Code stick
C.
FNC1, FNC2, FNC3, and FNC4 may be encoded based on the table below. All other
values will result in a barcode data error and the barcode will not be generated.
128 Code Value in
Decimal
Value in
Hex
FNC3 128 80
FNC2 129 81
Not Valid 130 82
131 83
132 84
FNC4 133 85
FNC1 134 86
Figure 11 Code 128 FNC encoding