UPC-A and EAN-13: Variable Price/Weight Barcodes
The EAN/UPC standard allows for an additional checksum to be generated in the
middle of the barcode based on the data. This is used when the price or weight of an
item is embedded into the barcode data (commonly used in the food industry).
For the printer to generate this checksum, a “V” must be placed in the data stream in
the position the checksum is requested. If the “V” is placed in the 6th position for
UPC-A or the 7th position for EAN-13, a checksum will be generated using the next
five digits in the data stream. If the “V” is placed in the 7th position for UPC-A or the
8th position for EAN-13, a checksum will be generated using the next four digits in
the data stream. The checksum is generated per the EAN/UPC barcode standard.
Example 1
1B110000200020012345V01199
Prints the UPC-A barcode with the variable price checksum in the sixth position.
Example 2
1B1100002000200123456V0150
Prints the UPC-A barcode with the variable price checksum in the seventh position.
Example 3
1F1100002000200123456V01199
Prints the EAN-13 barcode with the variable price checksum in the seventh position.
Example 4
1F11000020002001234567V0150
Prints the EAN-13 barcode with the variable price checksum in the eighth position.
DPL Command Reference
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