Method and apparatus to eject drops having straight trajectories

A technology of droplets and equipment, applied in the field of spraying droplets with straight trajectories, can solve problems such as image quality deterioration

Active Publication Date: 2012-10-03
FUJIFILM DIMATIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In either case, the image quality produced by the curved jet is degraded

Method used

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  • Method and apparatus to eject drops having straight trajectories
  • Method and apparatus to eject drops having straight trajectories
  • Method and apparatus to eject drops having straight trajectories

Examples

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Embodiment Construction

[0028] Described herein is a method and apparatus for driving a drop ejection device to produce droplets ejected in a straight line trajectory. In one embodiment, a method for driving a droplet ejection device having an actuator comprises building a fluid with at least one drive pulse by applying a multi-pulse waveform having at least one drive pulse and a straightening pulse to the actuator. of droplets. Next, the method includes causing the droplet ejection device to eject a droplet having a linear trajectory in response to the pulses of the multi-pulse waveform. Straightening pulses are designed to ensure that droplets are ejected without droplet trajectory errors.

[0029] To reduce potential droplet trajectory errors, the straightening pulse causes straightening of the droplet formed by the at least one drive pulse by raising the meniscus position of the fluid past the nozzle. The straightening pulse also reduces asymmetric wetting problems by changing the properties of...

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PUM

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Abstract

Described herein is a method and apparatus for driving a drop ejection device to produce drops having straight trajectories. In one embodiment, a method for driving a drop ejection device having an actuator includes building a drop of a fluid with at least one drive pulse by applying a multi- pulse waveform having the at least one drive pulse and a straightening pulse to the actuator. Next, the method includes causing the drop ejection device to eject the drop with a straight trajectory in response to the pulses of the multi-pulse waveform. The straightening pulse is designed to ensure that the drop is ejected without a drop trajectory error.

Description

technical field [0001] Embodiments of the present invention relate to droplet ejection, and more particularly to ejecting droplets having a straight line trajectory. Background technique [0002] Drop ejection devices are used for various purposes, most commonly for printing images on various media. They are often referred to as inkjet or inkjet printers. Drop-on-demand drop ejection devices are used in many applications because of their flexibility and economy. A drop-on-demand device ejects one or more droplets in response to a specific signal, typically an electrical waveform or a waveform that may include a single pulse or multiple pulses. Different parts of the multi-pulse waveform can be selectively activated to generate droplets. The one or more drive pulses build up the droplets that emerge from the nozzles of the droplet ejection device. [0003] Drop ejection devices typically include a fluid path from a fluid supply to a nozzle path. The nozzle path terminate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/07B41J2/175
CPCB41J2/04526B41J2/04588B41J2/04586
Inventor W·R·莱滕德雷X·王R·哈森拜恩M·麦克唐纳J·拉斯佩雷
Owner FUJIFILM DIMATIX
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