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:
Mar. 09, 2004
Filed:
Feb. 26, 2002
Yoshikazu Sasago, Shizuoka, JP;
Yoshiyuki Batori, Shizuoka, JP;
Takashi Akutsu, Kanagawa, JP;
Masanari Morioka, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic image forming apparatus, capable of detachably mounting a process cartridge, for forming an image on a recording medium includes, a mounting portion for detachably mounting the process cartridge. The apparatus also includes a transporting member for transporting the recording medium, a controlling portion for controlling the operation of the electrophotographic image forming apparatus to execute the reading and/or the writing of the information to a storing member of the cartridge; and an exposing portion for exposing an electrophotographic photosensitive body of the cartridge to light. The electrophotographic image forming apparatus is configured to execute a charge elimination operation of the electrophotographic photosensitive body if the electrophotographic image forming apparatus determines that the process cartridge is in an unused state on the basis of the information from the storing member. As a result, an electrophotographic image forming apparatus and a process cartridge, both being capable of preventing the occurrence of image defects such as a black streak in an initial state of the process cartridge, are provided.