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:
Aug. 19, 1997
Filed:
Sep. 28, 1992
Tadayuki Tsuda, Kawasaki, JP;
Kazumi Sekine, Kawasaki, JP;
Isao Ikemoto, Kawasaki, JP;
Kazushi Watanabe, Yokohama, JP;
Yoshikazu Sasago, Tokyo, JP;
Shinya Noda, Yokohama, JP;
Kazunori Kobayashi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process cartridge includes a first upper and second lower frame, separably engageable to each other, an image bearing member, a process means acting on the image bearing member, and a positioning device for positioning an optical unit of an image forming apparatus when the process cartridge is mounted within the image forming apparatus. With this arrangement, the present invention can provide a process cartridge and an image forming apparatus capable of mounting the process cartridge, which can form an image with higher quality than that of the conventional techniques, without distorting the image. The positioning member is located on the second lower frame and passes through openings formed on the first upper frame in order to position the optical unit.