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

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Chapter 3 Bar Codes
UPC-E
UPC-E bar codes are special zero-suppressed Universal Product Codes that
compress 10 data characters down to 6 characters under specific rules. UPC-
E bar code types include UPC-E0, UPC-E+2, UPC-E+5, UPC-E0+2, and
UPC-E0+5. UPC-E also offers optional extended data fields onto existing
UPC-E bar codes. The UPC-E bar code structure is shown in Figure 21 and
described on the following pages.
Figure 21. UPC-E Structure
QUIET
ZONE
QUIET
ZONE
DATA
FIELD
START
CODE
STOP
CODE
NUMBER
SYSTEM
CHARACTER
N
OPTIONAL
CHECK
DIGIT
HEIGHT
C
CHECK
DIGIT
CHARACTER
NUMBER SYSTEM
CHARACTER FIELD
READABLE
DATA FIELD
2- or 5-
DIGIT
ADD-ON
CODE
N
START CODE
NUMBER
QUIET
ZONE
STARTING
QUIET
ZONE
C
CHECK
DIGIT
STOP CODE
CHECK
DIGIT
SYSTEM
DATA
NUMBER
CHARACTER
CHARACTER
OPTIONAL
READABLE
DATA
FIELD
FIELD
CHARACTER
SYSTEM
2- or 5-
DIGIT
ADD-ON
CODE
HEIGHT
FIELD
POSITION
STARTING
POSITION