Two-dimensional bar codes
48
Two-dimensional bar codes
Bar code descriptor for PDF417 (Lexmark)
Bytes MSB LSB Range
Default
(if not
specified)
Definition
0–1 Symbology
ID byte 1
(00x)
Symbology
ID byte 2
(03x)
n/a n/a Required
The two bytes with values 00
and 03 (hex) or 0 and 3 (dec)
signify the symbology.
2–3 Reserved Units 0=Default
1=1/300” units
2=1/600” units
3=1/1200” units
0 or 2 (dec)
00 or 02 (hex)
Optional
Sets the units used in specifying
any further parameters or
dimensions. The default value is
1/600” (00 or 02 (hex)).
4–5 X
dimension
byte 1 (in
Units)
X
dimension
byte 2 (in
units)
240–12000 (dec) 945 (dec)
03 B1 (hex)
Optional
Sets the X dimension of the
module (white or black
rectangle) in 100th of an inch.
Note: Values that go beyond
the defined range are
appropriately clipped and set to
the minimum and maximum
values.
To set the X dimension to
default at 600 dpi requires a
value of 9.45, which is specified
as 945 (dec) or 03 B1 (hex).
The Units enumeration will be
set to 02 or 00 (hex), and these
two bytes will be 03 and B1
(hex).
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