More About Pdf 417; Using M1 To Select Number Of Columns; Using M2 To Select An Error Correction Level; Using M3 To Set The Truncate Flag - Intermec 4400 User Manual

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More About PDF 417

2D symbols encode data by compressing it in different amounts. Therefore,
these values should be used as guidelines. The exact data capacity varies with
the actual data being encoded.
Full ASCII Alphanumeric
1108 1850

Using m1 to Select Number of Columns

When you select the default for m1 (0), the printer selects a height
magnification that is three times the width magnification. The specifications of
PDF 417 recommend these magnification values for creating a symbol that you
can easily scan.

Using m2 to Select an Error Correction Level

The level of error correction that works best for your data depends on the
amount of characters in your symbols. If you decide to select your own error
correction level, you will need to estimate the number of characters since they
are formed by compressing the raw data you send to the printer. In general, 1.8
alphanumeric characters generate one symbol character. If you are using
numeric data, 2.9 digits generate one data symbol character.
Intermec recommends that you leave the error correction level at the default
setting of 9. This default setting lets the printer select a level, between level 2
and level 5, that provides the most efficient error correction of your data. The
level selection is based on the number of symbol characters generated by your
data.

Using m3 to Set the Truncate Flag

m3 is a truncate flag that indicates whether to print the symbol in truncated
form. If truncated, the symbols are printed without right row indicators and
with only a one-module wide stop character. To minimize errors and maintain
the best reading performance, Intermec recommends that you leave m3 equal
to 0. Setting the truncate flag loses the symbol redundancy. Since row
indicators are not error-corrected, elimination of one set of them increases your
chances of losing row identification.

More About Code One

Code One modules must be square. Therefore, when you define a field for
Code One, you only need to enter one value for both the height and width
magnification. If you enter more than one value, the printer uses the last value
for both height and width and ignores all previously entered magnification
values. If no value is entered, the printer uses the default value.
C o d e 3 9
Printer Commands
Numeric
2725
7
7-77