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:
Aug. 28, 2012
Filed:
Dec. 07, 2010
Kazuyuki Morinaga, Machida, JP;
Kenji Kawazoe, Yokohama, JP;
Masaya Shimmachi, Kawasaki, JP;
Tetsu Hamano, Tokyo, JP;
Toshiaki Tokisawa, Yokohama, JP;
Kazuyuki Morinaga, Machida, JP;
Kenji Kawazoe, Yokohama, JP;
Masaya Shimmachi, Kawasaki, JP;
Tetsu Hamano, Tokyo, JP;
Toshiaki Tokisawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printer has a separating unit, such as a depressing cam and a depressing slider, which presses a middle plate against the biasing force of a spring and separates a sheet on the middle plate from a sheet feeding roller by a predetermined distance, a separation driving unit, such as a DC motor, which moves the separating unit, a measuring unit which measures the driving load applied to the separation driving unit when the separation driving unit drives the separating unit, and a load imparting unit, such as a brake plate, which imparts load to the middle plate, the separating unit, or the like. The brake plate or the like imparts load when a sheet is separated from the sheet feeding roller by the separating unit, and the brake plate or the like changes the load to be imparted, according to the turning angle of the middle plate.