Upc-A - Printronix ThermaLine Series Programmer's Reference Manual

UPC–A
The UPC–A bar code structure is shown in Figure 5–27 and described on the
following pages.
SR, SC
START CODE
POSITION
QUIET
ZONE
NUMBER
N
SYSTEM
CHARACTER
NUMBER SYSTEM
CHARACTER FIELD
SR, SC
POSITION
QUIET
ZONE
NUMBER
N
SYSTEM
CHARACTER
START CODE
2– or 5–
DIGIT
ADD–ON
CODE
QUIET
ZONE
SR, SC
POSITION
STOP CODE
CHECK
DIGIT
FIELD
RIGHT
DATA
FIELD
CENTER CODE
LEFT
DATA
FIELD
START CODE
QUIET
ZONE
HEIGHT
5–104
CENTER CODE
LEFT DATA
RIGHT DATA
FIELD
FIELD
OPTIONAL READABLE
DATA FIELD
LEFT DATA
RIGHT DATA
FIELD
FIELD
CENTER
CODE
CHECK
C
DIGIT
CHARACTER
OPTIONAL
READABLE
DATA
FIELD
NUMBER
SYSTEM
CHARACTER
FIELD
NUMBER
N
SYSTEM
CHARACTER
Figure 5–27. UPC–A Structure
STOP CODE
QUIET 2– or 5–
ZONE
ADD–ON
CODE
C
CHECK DIGIT
CHECK DIGIT FIELD
CHARACTER
2– or 5–
QUIET
DIGIT
ZONE
ADD–ON
CODE
C
STOP CODE
CHECK DIGIT
CHECK DIGIT FIELD
CHARACTER
2– or 5–
DIGIT
ADD–ON
CODE
C
QUIET
SR, SC
ZONE
POSITION
STOP CODE
RIGHT
DATA
FIELD
OPTIONAL
READABLE
DATA
FIELD
LEFT
DATA
FIELD
START CODE
QUIET
ZONE
N
HEIGHT
DIGIT
HEIGHT
HEIGHT
CHECK
DIGIT
CHARACTER
CHECK
DIGIT
FIELD
CENTER
CODE
NUMBER
SYSTEM
CHARACTER
FIELD
NUMBER
SYSTEM
CHARACTER
Bar Codes