HP LineJet Printers - QMS Code V Technical Reference Manual, 171251-001PX

German Interleaved 2/5
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German Interleaved 2/5
The German Interleaved 2/5 bar code structure is shown in Figure 14 and
described on the following pages.
Figure 14. German 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.
Start/Stop Codes
Unique start and stop codes permit bidirectional scanning. Both start and stop
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.
DATA FIELD
QUIETQUIET
START
STOP
LOWER GUARD BAND
CODE
CODEZONE
ZONE
OPTIONAL READABLE DATA FIELD
HEIGHT
STARTING
DATA
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