Specifications

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• Marker area
Markers are used to align the print start position. In the back barcode specification, the back barcode
read start position is also aligned
• Space between marker and barcode
This is a space (blank) to distinguish between the marker and the barcode.
• Barcode area
The combination of black and white bars represents 6 or 15 digits. Barcodes consist of a start bar,
data characters, parity bars and stop bar.
• Start bar
This bar indicates the start of the barcode. It consists of one black and one white bar.
• Character bars
Data characters are binarized and converted so that bit data “0” is represented by a black bar, and “1”
by a white bar.
One separator (white bar) is inserted for every four bits, to distinguish from markers.
For six digits, the first three digits (0-255) are represented by 8 bits, and the last three (0~127) by 7
bits.
For 15 digits (0-281474976710655), the barcode consists of two rows. The first 24 bits are on the right
side, and the last 24 bits on the left side. For six digits, binarized data is converted so that bit data “0”
is represented by a black bar, and “1” by a white bar, with a separator (white bar) inserted every four
bits.
• Parity bar (even parity for black bars)
This bar indicates even parity for the black bars from the start bar to the last data characters (the stop
bar is not included). It consists of one black or one white bar.
• Stop bar
This bar indicates the end of the barcode. It consists of one white and one black bar.