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:
Jan. 02, 1996
Filed:
Sep. 08, 1993
Hideaki Furukawa, Yokohama, JP;
Tadashi Yamakawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A paper feeding device for a printer, a copying machine or the like is detachable therefrom and need not be electrically connected thereto. The device has a lifter or deck to store a large number of paper sheets thereon, transfer rollers for transferring paper sheets, a lifter motor for vertically moving the lifter, sensors for detecting the position of the lifter, paper size, the no paper sheet state, etc., and a microcomputer to control the transfer timing of the paper sheet. The device allows continuous copying or printing without frequent interruption for replenishment of paper sheets or interruption due to incorrect detection of abnormal operation.