Code 39 - Printronix ThermaLine Series Programmer's Reference Manual

Code 39

The Code 39 structure is shown in Figure 5–1 and described on the following
pages.
SR, SC
POSITION
OPTIONAL
CHECK
DIGIT
OPTIONAL
READABLE
DATA
FIELD
UPPER
GUARD
BAND
SR, SC
POSITION
QUIET
ZONE
SR, SC
POSITION
QUIET
ZONE
Bar Codes
QUIET
ZONE
POSITION
STOP
CODE
OPTIONAL
DATA
FIELD
LOWER
GUARD
BAND
START
CODE
QUIET
ZONE
HEIGHT
OPTIONAL READABLE DATA FIELD
UPPER GUARD BAND
START
DATA FIELD
CODE
LOWER GUARD BAND
UPPER GUARD BAND
START
DATA FIELD
CODE
LOWER GUARD BAND
OPTIONAL READABLE DATA FIELD
Figure 5–1. Code 39 Structure
QUIET
SR, SC
ZONE
STOP
CODE
CHECK
DIGIT
DATA
FIELD
START
UPPER
CODE
GUARD
BAND
QUIET
ZONE
HEIGHT
OPTIONAL
CHECK DIGIT
HEIGHT
STOP QUIET
CODE ZONE
OPTIONAL
CHECK DIGIT
STOP QUIET
HEIGHT
CODE ZONE
OPTIONAL
READABLE
DATA
FIELD
LOWER
GUARD
BAND
5–21