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:
Feb. 12, 2008
Filed:
Mar. 10, 2004
Yusuke Sakagami, Shiojiri, JP;
Osamu Shinkawa, Chino, JP;
Yusuke Sakagami, Shiojiri, JP;
Osamu Shinkawa, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
It is an object of the invention to provide a droplet ejection apparatus that can detect whether or not a missing dot (absence of a pixel) actually occurs on a formed image, and can carry out appropriate recovery processing according to a cause of the ejection failure without conventional sequential recovery processing by identifying the cause thereof in the case where a missing dot is detected. The droplet ejection apparatus of the invention includes a plurality of droplet ejection heads, ejection failure detecting meansfor detecting an ejection failure of the droplet through the nozzle, and recovery meansfor carrying out recovery processing to eliminate a cause of the ejection failure of the droplet. The ejection failure detecting meansdetects the ejection failure with respect to a droplet ejection operation of each droplet ejected through the nozzles when the plurality of droplet ejection heads eject the droplets onto the droplet receptor. In the case where the ejection failure is detected, the droplet ejection apparatusinterrupts the ejection of the droplets onto the droplet receptor and make the recovery meanscarry out the recovery processing in accordance with the cause of the ejection failure.