Printronix l7032 参照マニュアル
Australian 4-State
169
Australian 4-State
The Australian 4-State structure is shown in Figure 5 and described on the
following pages.
following pages.
Figure 5. Australian 4-State Structure
The Australian 4-State bar code supports the Australian Postal Service.
Australian 4-State bar codes are similar to POSTNET in terms of bar space
and width, but have four different types of bars (Full Height, Ascender,
Descender, and Tracker), whereas POSTNET only has two bar types (Tall
and Short).
Australian 4-State bar codes are similar to POSTNET in terms of bar space
and width, but have four different types of bars (Full Height, Ascender,
Descender, and Tracker), whereas POSTNET only has two bar types (Tall
and Short).
The Australian 4-State symbology converts alphanumeric characters into
patterns of four bars, using combinations of Full Height, Ascender,
Descender, and Trackers. It also adds start and stop bar codes as well as
Reed-Solomon parity information.
patterns of four bars, using combinations of Full Height, Ascender,
Descender, and Trackers. It also adds start and stop bar codes as well as
Reed-Solomon parity information.
Quiet Zone
Quiet zones extend on both ends of the bar code to permit the scan to begin
and end in a blank area. The quiet zones should be at least 0.25 inches wide
and completely blank to ensure accurate reading of the start/stop codes and
to prevent adjacent bar codes from overlapping. You are responsible for
providing sufficient space on the form for the quiet zones.
and end in a blank area. The quiet zones should be at least 0.25 inches wide
and completely blank to ensure accurate reading of the start/stop codes and
to prevent adjacent bar codes from overlapping. You are responsible for
providing sufficient space on the form for the quiet zones.
Start/Stop Code
The start and stop bars identify the orientation of the bar code. The start bar
consists of an ascender bar, and is positioned at the leftmost end of the bar
code. The stop bar consists of a full height bar, and is positioned at the
rightmost end of the bar code adjacent to the check digit.
consists of an ascender bar, and is positioned at the leftmost end of the bar
code. The stop bar consists of a full height bar, and is positioned at the
rightmost end of the bar code adjacent to the check digit.
DATA FIELD
QUIET
QUIET START
STOP
OPTIONAL READABLE DATA FIELD
CODE
CODE
ZONE
ZONE
HEIGHT
STARTING
POSITION
POSITION
DATA
FIELD
FIELD
QUIET
ZONE
ZONE
QUIET
ZONE
STOP
CODE
START
CODE
OPTIONAL
READABLE
DATA
FIELD
READABLE
DATA
FIELD
HEIGHT
STARTING
POSITION