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:
Feb. 13, 1996
Filed:
Apr. 21, 1994
Tadashi Renbutsu, Gifu, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
An image forming apparatus includes a photosensitive drum. A transfer roller is arranged in a manner that a periphery of the transfer roller is brought close to a peripheral surface of the photosensitive drum, and a PE sensor is arranged in front of the transfer roller, and paper leading end sensor is arranged in back of the transfer roller. When a paper supplied from a paper hopper is detected by the PE sensor, the photosensitive drum and the transfer roller are rotated, and therefore, the paper is fed until a leading end thereof is detected by the leading end sensor. The photosensitive drum and the transfer roller are independently driven by a main motor and a transfer motor, respectively. A printing operation is started in response to a print command, the paper is further fed by the photosensitive drum and the transfer roller, and then, when the leading end sensor does not detect the paper, the photosensitive drum and the transfer roller are stopped.