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. 29, 2005
Filed:
Mar. 27, 2002
Kenji Matsuda, Shizuoka, JP;
Akiyoshi Fujita, Shizuoka, JP;
Nobuharu Hoshi, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In conventional image forming apparatus, there is a type of a printer in which a developing device and a developer supplying container are separately provided and the developer supplying container is replaced individually to supply a developer that is an expendable agent. The printer of this type has an advantage that it is unecessary to replace frequently the component having a relatively long durable life, while the printer has the disadvantage that leakage of the developer easily occurs when the developer supplying container is removed from the printer main body. Therefore, an image forming apparatus capable of controlling leakage of developer is provided.