Denso HC36IITK-A Operation Manual page 23

C/D transmission for Interleaved 2 of 5
This setting will take effect when "Reading Interleaved 2 of 5 with
C/D" is specified (see page 25).
"Enable" (Default)
C/D transmission for Codabar (NW-7)
This setting will take effect when "Reading Codabar (NW-7) with
C/D" is specified (see page 26).
"Enable" (Default)
Calculation system for C/D of Codabar (NW-7)
"MOD-16" (Default)
C/D transmission for Code 39
This setting will take effect when "Reading Code 39 with C/D" is
specified (see page 26).
"Enable" (Default)
"Disable"
"Disable"
"7-check system"
"Disable"
C/D: Check digit
20