Electricity: measuring and testing – Electrostatic field – Using modulation-type electrometer
Reexamination Certificate
2007-10-25
2009-12-29
Dole, Timothy J (Department: 2831)
Electricity: measuring and testing
Electrostatic field
Using modulation-type electrometer
C324S072500, C399S048000, C399S073000
Reexamination Certificate
active
07639020
ABSTRACT:
A potential sensor is provided in which the adhesion of toner particles to the potential sensor is reduced or prevented from occurring, reducing or preventing the occurrence of a situation that accurate detection cannot be performed. The potential sensor has a movable member, detecting electrodes formed on the movable member, a support which movably supports the movable member, a driving mechanism which drives the movable member, and a stationary member which supports the support. Between the movable member and the stationary member, a first gap is so formed as to make the movable member101movable. The first gap has a part that is not larger in width than the maximum size of toner particles when the movable member is not elastically deformed and is at a neutral position.
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Hirose Futoshi
Kandori Atsushi
Kato Kazuhiko
Noguchi Kaoru
Ogawa Toshiyuki
Canon Kabushiki Kaisha
Dole Timothy J
Fitzpatrick ,Cella, Harper & Scinto
Zhu John
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