Title:
Inkjet heads and inkjet printers
Document Type and Number:
Japanese Patent JP6368691
Kind Code:
B2
Abstract:
An inkjet head comprises a pressure chamber into which ink is filled, a nozzle connected with the pressure chamber, an actuator which changes volume of the inside of the pressure chamber to eject an ink droplet from the nozzle connected with the pressure chamber, and a drive circuit which outputs a drive signal which contains an expansion pulse for increasing the volume of the pressure chamber and a contraction pulse for decreasing the volume of the pressure chamber when an ink droplet is ejected and outputs a precursor signal for changing the volume of the pressure chamber to a level at which the ink droplet is not ejected from the nozzle at the time of a precursor minute vibration for minutely vibrating ink.
Inventors:
Mitsuyuki Hiyoshi
Noboru Nita
Noboru Nita
Application Number:
JP2015135247A
Publication Date:
August 01, 2018
Filing Date:
July 06, 2015
Export Citation:
Assignee:
Toshiba Corporation
TOSHIBA TEC CORPORATION
TOSHIBA TEC CORPORATION
International Classes:
B41J2/01; B41J2/045; B41J2/14; B41J2/205
Domestic Patent References:
| JP2002086712A | ||||
| JP2005305912A | ||||
| JP2013107303A |
Foreign References:
| WO2014051073A1 |
Attorney, Agent or Firm:
Kurata Masatoshi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
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