Intermec 3440 User Manual page 204

3440 Bar Code Label Printer User's Manual
Using m1 to Select the Number of Columns
m1 is the number of columns of data characters. The range for m1 is 0 to 30
and the default is 0. If you select zero, the printer provides the number of
columns needed to create a symbol that is as close to a square as possible.
Note: When you select zero, the printer selects a height magnification that is three
times the width magnification. The specifications of PDF417 recommend these
magnification values for creating a symbol that you can scan easily.
Using ,m2 to Select an Error Correction Level
,m2 determines the level of error correction. Each level provides a certain
number of detection characters, which can detect and recover a specific
number of faulty characters. The range for ,m2 is 0 to 9. The default is 9 and
allows the printer to automatically select the appropriate 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 setting lets the printer select a level, between level 2 and
level 5, that provides the most efficient error correction of your data. The
printer bases the level selection on the number of symbol characters your
data generates.
The following table shows the m2 values (error correction levels), the
recommended data amount that you should use for each, and the number of
error correction characters that it generates.
6-58
*1233*
FranklinGothic
FG 9pt Italic
*1233*