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Commands
Program Mode Commands
11/24/09 APL-I Reference Guide 14177L-003
Using ,m1 to Select the Number of Columns
Purpose To set the number of columns in the PDF417 bar code.
Syntax This parameter, which defaults to 0, is the number of columns of data characters; the
range of values is 0 to 30.
Supported Based on testing, this command works the same on the Zebra printer with
APL-I firmware as on the 3400D printer.
Notes ,m1 represents the number of columns needed to create a symbol. The range is 0
(default) to 30. If you select 0, the printer automatically uses the number of columns necessary
for the symbol that is closest to the shape of a square.
Using ,m2 to Select an Error Correction Level
Purpose To set an error correction level for a PDF417 bar code.
Syntax This parameter, which defaults to 9, is the error correction level; the range of values
is 0 to 9.
Supported Based on testing, this command works the same on the Zebra printer with
APL-I firmware as on the 3400D printer.
Notes The error correction level should be set according to the number of code words
(compressed data) generated from the PDF417 bar code’s data. The table below shows a list of
the values of m2, the corresponding suggested number of code words, and the error detection
characters that will be generated at that setting.
m2 Number of Code words
Error Detection Characters
Generated
0 <not recommended> 2 (no error recovery)
1 <not recommended> 4
2 1-40 8
3 41-160 16
4 161-320 32
5 321-863 64
6 <reserved for special applications> 128
7 <reserved for special applications> 256
8 <reserved for special applications> 512
9
<printer automatically determines
error correction level> varies