Original feeding apparatus having a plurality of sensors

Details Original feeding apparatus having a plurality of sensors Original feeding apparatus having a plurality of sensors

2005-10-04

2005-10-04

Chen, Sophia S. (Department: 2852)

Electrophotography

Diagnostics

Document handling

C271S265020, C399S371000

Reexamination Certificate

active

06952537

ABSTRACT:
An original feeding apparatus has a sensor for detecting an original by a light emitting element and a light receiving element. A first detector for detecting presence/absence of a sheet, and a second detector capable of being electrically switched between a detection possible condition that the presence/absence of the sheet can be detected and a detection impossible condition that the presence/absence of the sheet cannot be detected are provided and the second sensor is switched to the detection impossible condition when presence of the original is detected by the first detector.

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patent: 2002-289885 (2000-10-01), None

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