Numeric A character set that includes only numbers. O OCR Optical Character Recognition. Omnidirectional Bar codes which can be read in any orientation relative to the scanner. The property of a substrate material that minimizes show-through from the back side or the next sheet. The ratio of the reflectance with a black backing to the reflectance with a white backing.
Ink opacity is the property of an ink that prevents the substrate from showing through.
The alignment of the symbol's scan path. Overhead The fixed number of characters required for start, stop and checking in a given symbol. Thus, to encode three characters, seven characters are required. All Rights Reserved.