Title:
LIQUID DISCHARGE HEAD, LIQUID DISCHARGE UNIT, LIQUID DISCHARGING DEVICE
Document Type and Number:
Japanese Patent JP2019142203
Kind Code:
A
Abstract:
To suppress pressure propagation of a common channel, thereby reducing crosstalk.SOLUTION: A liquid discharge head has: an individual liquid chamber 6 which is communicated with a nozzle 4 for discharging a liquid; a first actuator 11 which pressurizes the liquid in the individual liquid chamber 6; a first fluid resistance part 71 which is communicated with the individual liquid chamber 6; a second fluid resistance part 72 which is communicated with the first fluid resistance part 71; a channel 73 between fluid resistances which is interposed between the first fluid resistance part 71 and the second fluid resistance part 72, and has a fluid resistance lower than that of the first fluid resistance part 71 and the second fluid resistance part 72; and a second actuator 12 which pressurizes the channel 73 between fluid resistances. The first actuator 11 and the second actuator 12 include a common piezoelectric material 14, and an upper electrode 15 which becomes an electrically connected individual electrode.SELECTED DRAWING: Figure 2
Inventors:
SANO TAKESHI
Application Number:
JP2018031399A
Publication Date:
August 29, 2019
Filing Date:
February 24, 2018
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
B41J2/045; B41J2/055; B41J2/14
Domestic Patent References:
| JP2012245733A | 2012-12-13 | |||
| JP2016087793A | 2016-05-23 | |||
| JP4269608B2 | 2009-05-27 |
Foreign References:
| US5752303A | 1998-05-19 |
Attorney, Agent or Firm:
Tomiho Inamoto