Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fluid droplet ejection devices and methods

A jetting device, jetting direction technology, applied in the printing device, printing and other directions, can solve the problems such as the degree of limit improvement, to achieve the effect of reducing inaccuracy, large drop volume, and reducing drop tail size

Active Publication Date: 2009-04-29
FUJIFILM DIMATIX
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Drop ejector manufacturers apply various techniques to improve frequency response, however, the physical requirements of actuating drops in drop-on-demand ejectors limit how much frequency response can be improved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fluid droplet ejection devices and methods
  • Fluid droplet ejection devices and methods
  • Fluid droplet ejection devices and methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] refer to figure 1 , the printhead 12 includes a plurality (for example, 128, 256 or more) of inkjet heads 10 ( figure 1 Only one is shown in ), the inkjet head 10 is driven by electrical drive pulses provided on signal lines 14 and 15 and distributed by an on-board control circuit 19 to control the actuation of the inkjet head 10 . An external controller 20 provides drive pulses on signal lines 14 and 15 and provides control data and logic power and timing on a further line 16 to on-board control circuitry 19 . Ink ejected by inkjet head 10 may be delivered to form one or more print lines on substrate 18 moving relative to print head 12 (eg, in the direction indicated by arrow 21 ). In some embodiments, the substrate 18 is moved past the stationary printhead 12 in a one-pass pattern. Alternatively, printhead 12 may also move across substrate 18 in a scanning pattern.

[0056] refer to Figure 2A (is a schematic vertical section), each inkjet head 10 includes an elon...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for driving a droplet ejection device having an actuator, including applying a primary drive pulse to the actuator to cause the droplet ejection device to eject a droplet of fluid in a jetting direction, and applying one or more secondary drive pulses to the actuator which reduce a length of the droplet in the jetting direction without substantially changing a volume of the droplet.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Application No. 11 / 279,496, filed April 12, 2006, entitled "HIGH PREQUENCY LETEJECTION DEVICE AND METHOD" and filed March 15, 2004. )", the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to drop ejection devices and methods for driving drop ejection devices. Background technique [0004] Drop ejection devices are used for various purposes, most commonly printing images on various media. They are commonly referred to as inkjet heads or inkjet printers. Due to its flexibility and economy, drop-on-demand drop ejection devices are used in various fields. Drop-on-demand devices eject a drop in response to a specific signal, usually an electrical waveform (waveform). [0005] Drop ejection devices typically include a flow path from a fluid source to a nozzle path. The nozzle passage terminates at the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B41J29/38B41J2/045
CPCB41J2/04593B41J2/04508B41J2/04581B41J2/04555B41J2/04595B41J2002/14403B41J2/04588B41J2/14233B41J2/14201B41J2/2142B41J29/393
Inventor 保罗·A·霍伊辛顿罗伯特·A·哈森贝因
Owner FUJIFILM DIMATIX
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com