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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 25 and
described on the following pages.
STARTING
START
POSITION
CODE
QUIET
ZONE
HEIGHT
N
NUMBER
NUMBER SYSTEM
SYSTEM
CHARACTER FIELD
CHARACTER
Quiet Zone
Quiet zones extend on both ends of the bar code to permit the scan to begin
and end in a blank area. VGL automatically produces an 11-module wide left
quiet zone; You are responsible for providing sufficient space (minimum of 7
modules) on the form for the right quiet zone. (A trailing quiet zone is provided
automatically if an add-on code has been specified in the bar code
command.) The number system character is printed automatically in the left
quiet zone. If specified, the check digit is automatically printed in the right
quiet zone.
STOP
CODE
DATA
QUIET
CHECK
FIELD
ZONE
DIGIT
CHECK
OPTIONAL
DIGIT
READABLE
CHARACTER
DATA FIELD
Figure 25. UPC-E Structure
STARTING
POSITION
HEIGHT
NUMBER
SYSTEM
N
CHARACTER
QUIET
ZONE
NUMBER
SYSTEM
CHARACTER
FIELD
OPTIONAL
READABLE
DATA
DATA
FIELD
FIELD
CHECK
DIGIT
QUIET
ZONE
CHECK
C
DIGIT
CHARACTER
2- or 5-
DIGIT
ADD-ON
CODE
2- or 5-
DIGIT
ADD-ON
CODE
C
UPC-E
START CODE
STOP CODE
283
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