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. 05, 2009
Filed:
Mar. 02, 2006
Masaya Uetsuki, Yokohama, JP;
Takumi Kaneko, Tokyo, JP;
Tsutomu Abe, Isehara, JP;
Nobuyuki Matsumoto, Tokyo, JP;
Masaya Uetsuki, Yokohama, JP;
Takumi Kaneko, Tokyo, JP;
Tsutomu Abe, Isehara, JP;
Nobuyuki Matsumoto, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an ink jet printing apparatus carrying out printing using a plurality of ejecting portions for respectively ejecting different kinds of inks, a condition for wiping of an ejection face provided with ink ejection openings of the plurality of ejecting portions is appropriately determined and defective ejection due to a wet and dirty ejection face is effectively prevented. A timing of wiping is controlled considering kinds of inks. Specifically, the timing of wiping is determined not simply based on a number of ejections carried out by the plurality of ejecting portions to perform printing, but also a condition of an amount of mist generated in accordance with the kinds of ink.