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46 Operation
You will find a list of the bar code printer commands for each emulation in appendix
C.
Here is a brief explanation of each of the available bar codes, along with a sample
printout for each one.
UPC A Bar Code
UPC (Universal Product Code) bar coding is used in the supermarket industry. UPC
A coding contains ten digits: the first five digits represent the manufacturer, the sec-
ond five digits identify the product.
UPC E
UPC E bar coding is a six-digit variation of UPC A, used for labeling small items.