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. 20, 2014
Filed:
Nov. 29, 2012
Hiroshi Noda, Kanagawa, JP;
Hiroshi Noda, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A droplet ejection device includes a droplet ejection head. The droplet ejection head includes droplet ejection nozzles, a common liquid chamber, an air vent nozzle, and a nozzle face. The ejection nozzles are arranged side by side in a vertical direction. Each ejection nozzle has a first channel to eject droplets. The vent nozzle has a second channel to vent air from the common chamber. The nozzle face is disposed in the vertical direction or a direction tilted downward relative to the vertical direction. The first channel is tilted downward so that a side proximal to the nozzle face is lower than another side proximal to the common chamber. The vent nozzle is disposed above a topmost one of the ejection nozzles. The second channel is tilted upward so that a side proximal to the nozzle face is higher than another side proximal to the common chamber.