SATO CL4NX Programming Reference Manual page 181

(5) Composition of check digit
Refer to the table below for check digit in each barcode.
[Composition of C/D]
Barcode specification
parameter
3
4
C
E
G
H
I
Note: C/D stands for "Check Digit".
(6) Barcode Rotation Print
Print direction of barcode can be rotated. Note that when specifying Serial 1 and Serial 2 for barcode
rotation, it may cause blurring due to barcode enlargement ratio.
Avoid printing of 1-dot narrow bar since 1 dot becomes 0.125 / 0.083 / 0.042 mm when head density
is 8 dots/mm (203 dpi) or 12 dots/mm (305 dpi) or 24 dots/mm (609 dpi).
Parallel 1: Forward feed print
Parallel 2: Backfeed print at 180-degree rotation
Serial 1: Forward feed print at 90-degree rotation
Serial 2: Forward feed print at 270-degree rotation
* Forward feed: Prints horizontally to label feed direction
Barcode Input
specification digit
No.
JAN/EAN13 12-digit
13-digit
JAN/EAN8 7-digit
8-digit
CODE93 Max.
99-digit
UPC-E 6-digit
only
CODE128 -
UPC-A 11-digit
only
UCC/EAN128 for 17-digit
standard carton ID only
179
Print digit number and contents
13-digit
(Input data of barcode + C/D)
C/D is calculated by modulus10.
13-digit (Input data of barcode)
C/D is not checked.
8-digit
(Input data of barcode + C/D)
C/D is calculated by modulus10.
8-digit (Input data of barcode)
C/D is not checked.
C/D is calculated by modulus47.
C/D is calculated by modulus10.
C/D is calculated by modulus103.
12-digit (Input data of barcode + C/D)
C/D is calculated by modulus10.
C/D is calculated by modulus103.