Paper thickness detecting apparatus with applying electrodes

Details Paper thickness detecting apparatus with applying electrodes Paper thickness detecting apparatus with applying electrodes

2010-01-20

2011-10-04

McClain, Gerald (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C324S663000, C324S671000, C324S672000, C340S674000, C340S675000

Reexamination Certificate

active

08028990

ABSTRACT:
A paper thickness detecting apparatus includes a first sensor and a second sensor in which the electrostatic capacitance changes when a piece of paper such as a bank note or a piece of copying paper is inserted, and a thickness detecting unit for detecting the thickness of the piece of paper from the signals obtained from the respective first sensor and the second sensor, in order to provide a paper thickness detecting apparatus that can reliably detect a foreign object adhered to the paper.

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patent: 2001-240271 (2001-09-01), None
patent: 2004-280367 (2004-10-01), None

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