Printronix l7032 参照マニュアル

 291

The UPCSHIP bar code structure is shown in Figure 26 and described on the 
following pages.

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.

Unique start and stop codes permit bidirectional scanning. Both start and stop 
codes contain bars and spaces. They are automatically produced.

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.

DATA FIELD

QUIET

QUIET START

STOP

LOWER GUARD BAND

CODE

CODE

ZONE

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