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Chapter 7Bar Codes
Australian 4-State
The Australian 4-State structure is shown in Figure 6 and described below.
Figure 6. Australian 4-StateStructure
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.
Start/Stop Codes
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 left most end of the bar
code. The stop bar consists of a full height bar, and is positioned at the right
mostend of the bar code adjacent to the check digit.
Data Field
The first two characters of the data field is the FCC code. The maximum
length for each FCC code is described in Table 64.
For example, if 1101234567 is specifiedas the bar code data, 11 indicates
the FCC code and 01234567 is the 8-digitdata field.
Readable Data
The optional readable data field provides a readable interpretation of th e bar
code data. It can be printed above or below the bar code symbol. The
readable field prints left-aligned below the bar code structure.
Table 64. FCC Codes and Maximum Bar Code Lengths
FCC ValidData Maximum Length
11, 87,45, or 92 Any 8 +0
59 A-Z,a-z,0-9,space,# 8+5
44, 62 A-Z,a-z,0-9,space,# 8+10
DATAFIELD QUIETQUIET START STOP
OPTIONALREADABLE DATA FIELD
CODE CODEZONE ZONE
SR,SC
HEIGHT
POSITION
GUARDBAND

Normal