Patent Number: 6,296,351

Title: Ink jet recording head with narrowed reservoir ends

Abstract: In order to ease the discharge of air bubbles stagnated in end portions of a reservoir in an ink jet recording head, the end portions of the reservoir are so formed that the widths thereof are substantially equal to the depths thereof. Air bubbles entered in those portions are drawn into pressure generating chambers by directly applying negative pressure to discharge outwards from nozzle orifices.

Inventors: Tanaka; Ryoichi (Nagano, JP), Kitahara; Tsuyoshi (Nagano, JP), Okazawa; Noriaki (Nagano, JP), Kimura; Hitotoshi (Nagano, JP), Iijima; Takayuki (Nagano, JP)

Assignee: Seiko Epson Corporation

International Classification: B41J 2/14 (20060101); B41J 2/17 (20060101); B41J 2/19 (20060101); B41J 2/175 (20060101); B41J 002/045 ()

Expiration Date: 10/02/2018