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:
Sep. 23, 2014
Filed:
Jun. 12, 2013
Riso Kagaku Corporation, Tokyo, JP;
Akihiro Yamagata, Ibaraki-ken, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A sheet supply device includes registration rollers for feeding a print sheet, a sheet supply roller for feeding a print sheet to the registration rollers, and a controller configured to control the registration rollers and the sheet supply roller. The controller is operable to start first rotation of the sheet supply roller to contact a leading edge of the print sheet to a nip between the registration rollers to form a slack of the print sheet, stop the first rotation after the slack is formed, start rotation of the registration rollers after the first rotation is stopped, start second rotation of the sheet supply roller after the rotation of the registration rollers is started, and keep a speed difference between a feed speed of the registration rollers and a feed speed of the sheet supply rollers until the slack is flattened. According to the device, noises can be reduced.