90 N4680 2D Decoded Scan Engine User Guide
Code 39 Check Character
No Check Character indicates that the scanner reads and transmits bar code data 
with or without a check character.
When Check Character is set to Validate, but Don’t Transmit, the unit only reads 
Code 39 bar codes printed with a check character, but will not transmit the check 
character with the scanned data. 
When Check Character is set to Validate and Transmit, the scanner only reads 
Code 39 bar codes printed with a check character, and will transmit this character 
at the end of the scanned data. Default = No Check Character.
Code 39 Message Length
Scan the bar codes below to change the message length. Refer to Message Length 
Description (page 86) for additional information. Minimum and Maximum lengths 
= 0-48. Minimum Default = 0, Maximum Default = 48.
Validate, but Don’t Transmit