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APPENDIX
(4) UPC (5) JAN/EAN-8 (6) JAN/EAN-13
These codes are common commodity codes, mainly used for miscellaneous
goods or groceries sold at supermarkets.
1) Each mode and bar code width
a) Horizontal printing
Item
Module width
Bar code width
JAN/EAN-8
JAN/EAN-13, UPC
Mode 1 Mode 2 Mode 3
2 dots 3 dots 4 dots
16.75 mm 25.125 mm 33.5 mm
23.75 mm 36.625 mm 47.5 mm
Note: Right and left guard bars are included, white spaces are not included.
b) Vertical printing
Item
Module width
Bar code width
JAN/EAN-8
JAN/EAN-13, UPC
Mode 1 Mode 2 Mode 3
2 dots 3 dots 4 dots
13.375 mm 27.75 mm 36.125 mm
27.624 mm 39.5 mm 51.375 mm
Note: Right and left guard bars are included, white spaces are not included.
2) REQUIREMENTS
a) JAN/EAN-8
Must consist of a 7 or 8 numeric digits, otherwise, the command is ignored.
The check digit is automatically added using modules 10/3 weight.
When the calculated value and the value in the 8th digit differ, the former
value has precedence over the latter values.
b) JAN/EAN-13
Must consist of a 12 or 13 numeric digits; otherwise, the command is
ignored. The check digit is automatically added using modules 10/3 weight.
When the calculated value and the value in the 13th digit differ, the former
value has precedence over the latter values.
c) UPC-A Must consist of a 11 or 12 numeric digits, otherwise, the command
is ignored. The check digit is automatically added using modules 10/3
weight.
When the calculated value and the value in the 12th digit differ, the former
value has precedence over the latter values.
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