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:
Jul. 31, 2012
Filed:
Jun. 21, 2010
Akizou Ohtani, Osaka, JP;
Fujio Tabata, Osaka, JP;
Akizou Ohtani, Osaka, JP;
Fujio Tabata, Osaka, JP;
Kyocera Mita Corporation, , JP;
Abstract
A remaining amount detector measures beforehand a distance H where there is one sheet. A motor displaces a lifting plate to a paper-feeding position upon storing paper in the feeding unit. The remaining amount detector measures a distance yto the lower face of a paper stack. Thereafter, upon transport of paper from the stack, a control unit causes the remaining amount detector to measure a distance yfor every predetermined number n of fed sheets. A remaining sheet calculation unit calculates a displacement y−y=Δy to the bottom of the paper stack S, and calculates the thickness of one sheet on the basis of the displacement Δy and the number n of fed sheets (t=Δy/n). The remaining sheet calculation unit divides the thickness (H−y) of the paper stack by the thickness t of one paper sheet, and calculates the number of remaining sheets m as (m=((H−y)/t)+1).