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:
Apr. 06, 2010
Filed:
Jan. 31, 2007
Yutaka Kubochi, Mishima, JP;
Yutaka Kubochi, Mishima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus is provided that detects a sheet remaining between a transfer unit and fixing unit using a loop sensor. The loop sensor is configured to detect a loop of a sheet conveyed between the transfer unit and the fixing unit. The image forming apparatus includes a control unit to control, in accordance with an output from the loop sensor, a sheet conveyance speed of the fixing unit so as to form the loop of the sheet conveyed by the transfer unit and the fixing unit. If the loop sensor detects a presence of the sheet while driving of the transfer unit and the fixing unit for conveying the sheet has stopped, the control unit determines that a remaining sheet is present, and outputs a warning signal.