The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2016
Filed:
Feb. 06, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Satohisa Tateishi, Abiko-shi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When a sheet is determined to arrive at a registration roller, a motor is temporarily stopped and then, is rotated so as to return a cam to an initial position. When the motor is rotated, in a case where a relation between a rotation angle θ of the cam at the time of stopping the motor and a rotation angle γ of the cam according to the rotation of the motor in a time required for the motor until acceleration up to constant-speed rotation from a stopped state of the motor and until deceleration from the constant-speed rotation and stop after the deceleration is 'θ<360−γ', the motor is rotated at a first speed by controlling acceleration/deceleration of the motor and, in a case where the relation is 'θ>360−γ', the motor is rotated at a constant second speed lower than the first speed.