Title:
液体吐出装置およびそれを備えたインクジェットプリンタ
Document Type and Number:
Japanese Patent JP7184670
Kind Code:
B2
Abstract:
To provide a liquid discharge device which can stably discharge droplets in a wide temperature range.SOLUTION: A liquid discharge device 20 comprises: a correction coefficient calculation circuit 50 which calculates a first temperature correction coefficient or a second temperature correction coefficient on the basis of a temperature detected by a thermistor 27; and a drive signal correction circuit 60 which corrects a reference drive signal S with the first temperature correction coefficient or the second temperature correction coefficient. When an amount of change in drive voltage at a minimum potential of a third drive pulse P3 corrected with the first temperature correction coefficient or the second temperature correction coefficient is represented by ΔV3 and an amount of change in drive voltage at a minimum potential of a fourth drive pulse is represented by ΔV4, the relationship of ΔV3<ΔV4 is established when the temperature detected by the thermistor 27 is lower than a reference temperature, and the relationship of ΔV3>ΔV4 is established when the temperature detected by the thermistor 27 is higher than the reference temperature.SELECTED DRAWING: Figure 6
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Inventors:
Keisuke Misawa
Application Number:
JP2019032285A
Publication Date:
December 06, 2022
Filing Date:
February 26, 2019
Export Citation:
Assignee:
Roland DG Co., Ltd.
International Classes:
B41J2/01; B41J2/015; B41J2/14
Domestic Patent References:
| JP2017189899A | ||||
| JP2012125998A | ||||
| JP2017159463A |
Attorney, Agent or Firm:
Takashi Goto
Hiroaki Yamane
Akihiro Furuichi
Hiroaki Yamane
Akihiro Furuichi
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