Printronix l7032 参照マニュアル
Interleaved 2/5
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Interleaved 2/5
The Interleaved 2/5 bar code structure is shown in Figure 14 and described
on following pages.
on following pages.
Figure 14. Interleaved 2/5 Structure
Quiet Zone
Both ends of the bar code structure have blank quiet zones. 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.
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
Unique start and stop codes permit bidirectional scanning. Both start and stop
codes contain bars and spaces. They are automatically produced.
codes contain bars and spaces. They are automatically produced.
Data Field
The bar code symbol uses a series of wide and narrow bars and spaces to
represent numeric characters. The structure is 2 wide elements (bars or
spaces) and 3 narrow elements. In the bar code, two characters are
interleaved (paired); bars are used to represent data characters occupying
the odd-numbered positions, and spaces are used to represent data
characters occupying the even-numbered positions. The interleaving process
requires an even number of characters; if an odd number of characters are
encoded, a leading zero is automatically inserted to change the number of
characters to an even number.
represent numeric characters. The structure is 2 wide elements (bars or
spaces) and 3 narrow elements. In the bar code, two characters are
interleaved (paired); bars are used to represent data characters occupying
the odd-numbered positions, and spaces are used to represent data
characters occupying the even-numbered positions. The interleaving process
requires an even number of characters; if an odd number of characters are
encoded, a leading zero is automatically inserted to change the number of
characters to an even number.
DATA FIELD
QUIET
QUIET
START
STOP
LOWER GUARD BAND
CODE
CODE
ZONE
ZONE
OPTIONAL READABLE DATA FIELD
HEIGHT
STARTING
DATA
FIELD
FIELD
QUIET
ZONE
STOP
CODE
START
CODE
OPTIONAL
READABLE
DATA
FIELD
HEIGHT
STARTING
GUARD
BAND
LOWER
CHECK
OPTIONAL
DIGIT
POSITION
POSITION
CHECK DIGIT
OPTIONAL
QUIET
ZONE