Detection apparatus and image forming apparatus

Details Detection apparatus and image forming apparatus Detection apparatus and image forming apparatus

2011-06-28

2011-06-28

Wu, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S012550, C340S013240, C340S572800, C340S520000, C399S388000, C399S397000

Reexamination Certificate

active

07969317

ABSTRACT:
A detection apparatus includes a casing, a movable member moving from a position outside the casing to a position inside the casing upon contact of a detection object, a radio communication device disposed on the movable member and configured for radio communication with a sending and receiving unit via radio waves, a shielding member for shielding the radio communication between the radio communication device and the sending and receiving unit in a state that the movable member is located within the casing, and a controller for determining the presence of the detection object by determining whether the sending and receiving unit can communicate with the radio communication device.

REFERENCES:
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patent: 2001/0010771 (2001-08-01), Nagai et al.
patent: 2002/0089678 (2002-07-01), Aoto et al.
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patent: 2006/0226987 (2006-10-01), Nagase
patent: 2007/0095227 (2007-05-01), Belbey et al.
patent: 2008/0068140 (2008-03-01), Taki et al.
patent: H10-087115 (1998-04-01), None

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