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:
May. 10, 1983
Filed:
Mar. 17, 1982
Masaharu Tsukata, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An original document presser includes a pressing member for pressing an original document on an original carriage, a driver for driving the pressing member for its opening and closing, a detector for detecting that the pressing member is in a predetermined position, and a control unit for controlling the motion of the pressing member. The control unit has a first signal generator and a second signal generator. In response to the start of an image forming operation, the first generator generates a signal to make the driver close the pressing member, and in response to the end of the image forming operation, the second generator generates a signal to make the driver open the pressing member. The control unit controls also the operation of the driver at the start of an image forming operation by means of an output signal from the detector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile