5525B/31/32 Line Matrix Printer Code V Programmer's Reference Manual

212
Chapter 3 Bar Codes
UPCSHIP
The UPCSHIP bar code structure is shown in Figure 22 described on the
following pages.
Figure 22. UPCSHIP 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.
Readable Data
The optional readable data field provides a readable interpretation of the bar
code data. Readable data is printed below the horizontal bar code symbol and
to the left of a vertical bar code symbol. The lower guard band is provided
when the readable data field is selected.
DATA FIELD
QUIETQUIET START STOP
LOWER GUARD BAND
CODE CODEZONE ZONE
OPTIONAL READABLE DATA FIELD
HEIGHT
STARTING
DATA
FIELD
QUIET
ZONE
QUIET
ZONE
STOP
CODE
START
CODE
OPTIONAL
READABLE
DATA
FIELD
HEIGHT
STARTING
GUARD
BAND
LOWER
CHECK
OPTIONAL
DIGIT
POSITION
POSITION
CHECK DIGIT
OPTIONAL