Title:
INKJET HEAD, METHOD FOR MANUFACTURING SAME, AND INKJET PRINTER
Document Type and Number:
WIPO Patent Application WO/2016/042878
Kind Code:
A1
Abstract:
An inkjet head (10) comprises: a substrate (11) in which pressure chambers (16a, 16d) are formed, and which has a vibration layer (11f) extending over the pressure chambers (16a, 16d); driving piezoelectric elements (15a, 15c) which are provided on the vibration layer of the substrate so as to be in a one-to-one correspondence relationship with the pressure chambers (16a, 16d), and which expand and contract to vibrate the vibration layer, thereby pressurizing the corresponding pressure chambers so as to eject ink; a detection piezoelectric element (15b) which is provided on the vibration layer of the substrate separately from the driving piezoelectric elements, and which detects a change in liquid pressure within the pressure chambers corresponding to the expanding/contracting driving piezoelectric elements when the driving piezoelectric elements are expanding/contracting; and a control device which determines whether the pressure chambers are in a state in which ink can be properly discharged on the basis of the change in the liquid pressure within the pressure chambers detected by the detection piezoelectric element.
Inventors:
MATSUDA SHINYA (JP)
Application Number:
PCT/JP2015/068655
Publication Date:
March 24, 2016
Filing Date:
June 29, 2015
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B41J2/01; B41J2/14; B41J2/16; B41J2/18
Foreign References:
| JP2005289048A | 2005-10-20 | |||
| JP2010274620A | 2010-12-09 |
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
Patent business corporation Fukami patent firm (JP)
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