18524952. LIQUID DROPLET DISCHARGING APPARATUS simplified abstract (BROTHER KOGYO KABUSHIKI KAISHA)

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LIQUID DROPLET DISCHARGING APPARATUS

Organization Name

BROTHER KOGYO KABUSHIKI KAISHA

Inventor(s)

TAKAAKI Yoshino of Nagoya (JP)

TORU Kakiuchi of Chita (JP)

LIQUID DROPLET DISCHARGING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18524952 titled 'LIQUID DROPLET DISCHARGING APPARATUS

The liquid droplet discharging apparatus described in the patent application includes a channel member with a nozzle and a pressure chamber, an actuator that applies pressure to the liquid inside the pressure chamber, and a controller that applies a driving signal to the actuator.

  • The driving signal in one discharging cycle consists of a main pulse to discharge a liquid droplet and a cancel pulse applied to the actuator after the main pulse.
  • The timing and duration of the cancel pulse are determined by the driving frequency of the signal, with specific constraints outlined in the expressions provided in the abstract.

Potential Applications:

  • This technology can be used in inkjet printers, medical devices, and industrial applications requiring precise liquid droplet discharging.
  • It may also find applications in 3D printing, biotechnology, and microfluidics.

Problems Solved:

  • The apparatus addresses the need for accurate and controlled liquid droplet discharging in various industries.
  • It ensures efficient and reliable operation of devices that rely on liquid droplet ejection.

Benefits:

  • Improved precision and consistency in liquid droplet discharging.
  • Enhanced performance and reliability of devices utilizing this technology.
  • Cost-effective solution for applications requiring controlled liquid droplet ejection.

Commercial Applications:

  • "Liquid Droplet Discharging Apparatus for Precision Applications"

Questions about the technology: 1. How does the cancel pulse contribute to the overall efficiency of liquid droplet discharging? 2. What are the key factors influencing the timing and duration of the cancel pulse in the driving signal?


Original Abstract Submitted

A liquid droplet discharging apparatus includes: a channel member having a nozzle and a pressure chamber; an actuator which applies pressure to liquid inside the pressure chamber; and a controller which applies a driving signal to the actuator. Within one discharging cycle, the driving signal includes: a main pulse for causing a liquid droplet to be discharged from the nozzle; and a cancel pulse which is applied to the actuator after the main pulse. In a case that a driving frequency of the driving signal is f (unit: kHz), a time from an end point of the main pulse to a start point of the cancel pulse is Tw (unit: μsec) and a width of the cancel pulse is Tc (unit: μsec), the following expressions (1) and (2) hold: 50≤f≤−11.3×(Tw+Tc)+120 . . . (1); and Tw+Tc≤5.2 . . . (2).

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