Patent
Fluid ejecting apparatus
Satoru Hosono,Sayuri Kawakami +1 more
- 18 Sep 2008
39
TL;DR: In this paper, a fluid ejecting apparatus that ejects fluid includes: a pressure chamber that is filled with the fluid, a pressure generating element that deforms a wall face of the pressure chamber to change a volume of the volume, and a control unit that generates a drive pulse for controlling the pressure generator.
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Abstract: A fluid ejecting apparatus that ejects fluid includes: a pressure chamber that is filled with the fluid; a pressure generating element that deforms a wall face of the pressure chamber to change a volume of the pressure chamber; a nozzle that is in fluid communication with the pressure chamber and that is used for ejecting the fluid; and a control unit that generates a drive pulse for controlling the pressure generating element. The control unit is able to generate a maintenance drive pulse for ejecting a bubble together with the fluid from the pressure chamber. The maintenance drive pulse includes a first pulse portion that drives the pressure generating element to cause the pressure chamber to expand into an expanded state and a second pulse portion that causes the pressure chamber to contract from the expanded state. The width of the second pulse portion is equal to or smaller than half the Helmholtz resonance period of the fluid with which the pressure chamber is filled.
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Citations
Patent
Liquid droplet jetting apparatus
Hiroto Sugahara
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TL;DR: A liquid droplet jetting apparatus as discussed by the authors includes a jetting head unit which has a nozzle which jets droplets of a liquid, and a heat generating section, a suction port which is formed in the jetting unit, and which opens near the nozzle.
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Shunya Fukuda
- 14 Nov 2014
TL;DR: A liquid ejecting apparatus as mentioned in this paper consists of an inflow channel to which liquid is supplied; an outflow channel communicated with a nozzle; a liquid chamber formed with a spiral flow channel having a substantially constant cross-sectional area between the inflow and the outflow channels and having a given volume; a volume changing portion configured to deform the liquid chamber so as to change the volume of the liquid to a volume smaller than the given volume.
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TL;DR: A fluid ejection device is a fluid container having a fluid accommodation portion that has formed therein a fluid outlet and accommodates a fluid as mentioned in this paper, and a fluid pressing unit presses the fluid accommodation part to cause the fluid to flow out of the fluid outlet.
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TL;DR: A liquid ejecting head that ejects liquid in a manifold as liquid droplets from a nozzle opening, a supply path that supplies the liquid to the manifold, a pump unit that is disposed in the supply path and pumps the liquid, and a discharge path that discharges the liquid from the manifold.
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Yasutoshi Hirabayashi,Shinji Seto +1 more
- 27 Mar 2014
TL;DR: A liquid ejection head includes a nozzle including a nozzle opening and a communication channel communicating at one end thereof with the nozzle opening; a liquid chamber communicating with another end of the nozzle communication channel; a pressurizing element configured to pressurize liquid in the liquid chamber; circulation outlets formed at the nozzle; individual circulation channels communicating with the sprayer; and a common circulation channel at which communication ports respectively communicating with individual channels are formed, the circulation outlets arranged symmetrically with respect to a nozzle axis passing through a barycenter of the opening and perpendicular to a sprayer
11
References
Patent
Liquid droplet jetting apparatus
Hiroto Sugahara
- 26 Nov 2008
TL;DR: A liquid droplet jetting apparatus as discussed by the authors includes a jetting head unit which has a nozzle which jets droplets of a liquid, and a heat generating section, a suction port which is formed in the jetting unit, and which opens near the nozzle.
147
Patent
Ink jet recording apparatus
Okoda Keiji
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TL;DR: In this paper, the authors propose an ink jet recording apparatus capable of stably feeding even a thick recording medium and good in workability at the time of maintenance, by arranging an ink supply in the space surrounded by the feed route.
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Patent
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Maekawa Tsutomu,Tamahashi Kunihiro,Shoji Yutaka,Takahagi Hiroshi,Watabiki Michimasa,Ouchi Akiyoshi,Fujii Hidetoshi +6 more
- 08 Jan 2003
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112
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- 20 Apr 2001
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101
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Hiroshi Suzuki,Yoshiyuki Yamada,儀行 山田,弘 鈴木 +3 more
- 07 Jan 1998
TL;DR: In this article, the problem of providing an ink-jet recording apparatus which can surely detect that an ink cartridge is loaded was solved by using a switch lever fixed at the leading end of the clamp lever 40 and a lower face of a leading end 42b pressing down a button 61a of a detection switch 61.
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