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:
Sep. 02, 2014
Filed:
Sep. 29, 2009
Applicant:
Katsuyuki Hirato, Kanagawa-ken, JP;
Inventor:
Katsuyuki Hirato, Kanagawa-ken, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01);
U.S. Cl.
CPC ...
B41J 2/16585 (2013.01); B41J 2/16535 (2013.01);
Abstract
A maintenance method of a liquid ejection head including a nozzle forming surface where a plurality of nozzles having a polygonal planar shape including a plurality of corners which each have two sides and an angle between the two sides are formed, includes the step of causing a relative movement of a sweep member and the head so as to sweep the nozzle forming surface of the liquid ejection head in such a manner that the sweep member is moved in a direction making an angle within π/8 radian with respect to a direction in which any of the sides extends.