Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2006-06-13
2006-06-13
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C348S246000
Reexamination Certificate
active
07061001
ABSTRACT:
A method and apparatus for troubleshooting a plurality of photosensors in a machine, such as a mail sorter and mail inserter. The troubleshooting procedure is carried out by a software program. As each photosensor comprises a photo-detector and an associated light emitter for illuminating the photo-detector, the test is based on the output voltage of the photo-detector in response to a current value on the light emitter. Based on the two or more current values set to the light emitter and the corresponding measured output voltage values, the software program determines whether the photosensor is functional. If the photosensor is not functional, possible causes and suggested remedies are provided to the operator of the machine.
REFERENCES:
patent: 5416516 (1995-05-01), Kameyama et al.
patent: 6307393 (2001-10-01), Shimura
Chaudhary Vishal
Ebrahimifard Badi
Allen Stephone B.
Chaclas Angelo N.
Cummings Michael J.
Pitney Bowes Inc.
Shapiro Steven J.
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