摘要:
The present invention is to provide a sheet aligning apparatus that is capable of detecting misalignment. A control portion of a post-processing apparatus causes a front aligning member and a rear aligning member to be moved to an aligning position to align sheets conveyed to a processing tray, causes the front aligning member to be moved from the aligning position to a detecting position, and determines whether an electrostatic capacitance sensor detects misalignment (sheet shifting from a sheet bundle). When it is determined that the senor detects misalignment, the front aligning member is moved from the detecting position to the aligning position so that sheets are realigned.
摘要:
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.
摘要:
This invention relates to a method and apparatus for measuring the resistivity, dialectic constant, and thickness of a media. Such structures of this type, generally, employ a pair of interdigital capacitive sensors that contact only one side of the media. An AC voltage is used to measure capacitance between the interdigital capacitive sensors. The capacitance readings from the sensors can be combined to compute the dialectic constant and the thickness of the media.