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. 03, 2016
Filed:
May. 14, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Katsumi Shinkai, Fujimi-machi, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01);
U.S. Cl.
CPC ...
B41J 2/16523 (2013.01); B41J 2/1652 (2013.01); B41J 2/16532 (2013.01); B41J 2/16508 (2013.01); B41J 2/16547 (2013.01);
Abstract
A suction device for an ejection head provided with a nozzle includes a cap capable of sealing a nozzle surface provided with the nozzle, a decompression pump serving as a decompression device, and a suction passage provided between the cap and the decompression pump. The negative pressure level of the suction passage set by the decompression pump are controlled on the basis of a volume of the suction passage such that a liquid with which the ejection head has been filled is sucked out from the nozzle.