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:
May. 06, 2003
Filed:
Aug. 10, 2001
Applicant:
Inventors:
Yasunari Kobaru, Shizuoka, JP;
Takashi Narahara, Shizuoka, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/514 ; G03G 1/520 ;
U.S. Cl.
CPC ...
G03G 1/514 ; G03G 1/520 ;
Abstract
In a conventional type of an image forming apparatus, when the top end of the paper whose charge is eliminated is brought into contact with the roller, or when the potential of the pressure roller is fluctuated by a separating discharge of the paper rear end, black spots phenomenon sometimes occurs at a portion in which the potential of the roller was lowered. It is provided, an image forming apparatus for preventing black spots of toner.
Kobaru, Yasunari. (2003). Image forming apparatus with second power source for charge elimination means (U.S. Patent No. 6560437). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6560437
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile