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. 21, 1990
Filed:
Oct. 27, 1988
Koji Terasawa, Mitaka, JP;
Akira Miyakawa, Tanashi, JP;
Hideki Yamaguchi, Yokohama, JP;
Shinya Matsui, Yokohama, JP;
Mikio Shiga, Yokohama, JP;
Shigeru Tsuyukubo, Kawasaki, JP;
Yoji Ara, Yokohama, JP;
Katsuyuki Yokoi, Yokohama, JP;
Masaaki Nakamura, Toyonaka, JP;
Yoshiaki Kaburagi, Tokyo, JP;
Takanori Mukai, Chichibu, JP;
Shoichiro Shoda, Yokohama, JP;
Tetsuo Kimura, Sagamihara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of cleaning a discharge port surface of an ink jet recording apparatus includes wiping the surface using a blade having a certain contact area with the surface and rubbing the surface using a rubbing member having a larger contact area with the surface than the blade. The wiping and rubbing operations are performed independently of each other so that their different purposes can be better accomplished. For example, since rubbing the surface need not be done as often as wiping, they can both be performed at optimum intervals. The rubbing member can be removably mounted to a replacement ink cartridge so that the rubbing member can be conveniently replaced at the same time as the cartridge.