System for detecting markings

Details System for detecting markings System for detecting markings

G - Physics

06

K

G06K 7/10 (2006.01)

Patent

CA 2658230

A marking detection system detects markings on a printed medium, such as pencil markings in bubbles on the printed medium. The marking detection system includes a circuit board with a plurality of components thereon, including an optical subsystem and an electronic subsystem including circuitry. The marking detection system further includes a shroud for optically isolating a plurality of emitting and detecting elements of the system.

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