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:
Jun. 16, 2009
Filed:
Oct. 14, 2005
Applicants:
Kenji Tsukada, Nagano-ken, JP;
Takeo Seino, Nagano-ken, JP;
Inventors:
Kenji Tsukada, Nagano-ken, JP;
Takeo Seino, Nagano-ken, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); B41J 2/19 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a first preliminary filling step, ink edge is moved to a position between first and second pressure chambers in an ink supply passage and the second pressure chamber is filled preliminarily with the ink. In a second preliminary filling step, the ink edge is moved to a position between the first pressure chamber and a nozzle in the ink supply passage. Meanwhile, bubbles are discharged from the second pressure chamber and the first pressure chamber is preliminarily filled with the ink. Finally, in the complete filling step, the supply passage is filled entirely with the ink.