UPC Shipping
255
UPC Shipping
The UPCSHIP bar code structure is shown in Figure 24 and described below.
Figure 24. 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. Bar code data is printed below the horizontal bar code symbol. The
lower guard band is provided when the readable data field is selected.
Check Digit
The modulo-10 check digit is automatically calculated and inserted in the bar
code symbol. The check digit provides the means to verify accurate scanning.
DATAFIELD
QUIETQUIET START STOP
LOWER GUARD BAND
CODE CODEZONE ZONE
OPTIONAL READABLE DATA FIELD
CHECK DIGIT
OPTIONAL
SR, SC
HEIGHT
POSITION
UPPER GUARD BAND
