Symbol
are positioned horizontally on the product, causing them to ends of all bars will enter the scan window first. See par.
A combination of characters including start/stop and checksum characters, as required, that form a complete scannable barcode.
Tilt
Rotation around the Z axis. Used to describe the position of the barcode with respect to the laser scan line. See pars. 2.5 and 3.1.
Trigger Signal
A signal, typically provided by a photoelectric sensor or proximity switch, which informs the scanner of the presence of an object within its reading zone.
UPC
Acronym for Universal Product Code. The standard barcode type for retail food packaging in the United States.
Visible Laser Diode
A light source used in scanners to illuminate the barcode symbol. Generates visible red light at wavelengths between 630 and 680 nm.
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