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. 28, 1998
Filed:
Nov. 07, 1996
Akihiko Yamazaki, Hitachinaka, JP;
Shuho Yokokawa, Mito, JP;
Kunitomo Takahashi, Hitachinaka, JP;
Youji Hirose, Mito, JP;
Hidenori Iwanaga, Hitachinaka, JP;
Hitachi Koki Co., Ltd., , JP;
Abstract
An electrophotographic apparatus for transferring a toner image formed on a photosensitive drum onto a sheet of paper and melt-fixing the toner image on the sheet of paper, having a paper detector at a predetermined position in a transporting path of the sheet of paper, the paper detector being composed of a light projector, a reflecting member for reflecting a primary light beam emitted from the light projector and a light receiver for sensing a secondary light beam reflected by the reflecting member, to prevent erroneous detections the light receiver is placed at a position relatively displaced with respect to a position where the light projector is located so that the primary light beam and the secondary light beam have tilting components to both a plane parallel to a transporting plane of the sheet of paper and a plane vertical to the transporting plane.