Optical sensor for monitoring the status of a bill magazine in a

Details Optical sensor for monitoring the status of a bill magazine in a Optical sensor for monitoring the status of a bill magazine in a

1995-01-23

1997-04-01

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250223R, 25055911, 25055912, 2505594, 209534, 209585, G01N 904, G06M 700

Patent

active

056169159

ABSTRACT:
A bill validator comprising a removable magazine having reflective surfaces, such as a prism, which reflects light from a light source, such as a light emitting diode, to a photodetector, such as a phototransistor, is disclosed. The prism can include a recess and the magazine can further comprise a blocker with an arm that can be moved into and out of the recess based on movement of a pressure plate within the magazine, to block light from passing across the recess. This arrangement can be used to determine whether the bill validator can go back into service, whether the magazine has been removed from and reattached to the validator, whether bills have been removed from the magazine, whether the magazine is full and whether a bill is in position for stacking, for example.

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