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. 05, 2014
Filed:
Jul. 08, 2013
Riso Kagaku Corporation, Tokyo, JP;
Akihiro Yamagata, Ibaraki, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A sheet supply device includes registration rollers for feeding a print sheet to a print unit, feed rollers for feeding a print sheet to the registration rollers, and a controller for controlling the registration rollers and the feed rollers. The controller starts first rotation of the feed rollers to contact a leading edge of the print sheet to the registration rollers to form a slack with a predetermined slack amount, stops the first rotation after the slack is formed, starts rotation of the registration rollers after the first rotation is stopped to reduce a slack amount of the slack, and starts second rotation of the feed rollers after the rotation of the registration rollers is started so as to make the slack remained until a trailing edge of the print sheet passes through the feed rollers. According to the sheet supply device, noises during feeding print sheets can be reduced.