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

Ink jet printing

An inkjet printer and inkjet technology, applied in printing devices, printing, etc., can solve the problems of condensation on the electrodes and other parts of the print head, and the air returning to the print head is not completely saturated.

Active Publication Date: 2010-03-10
LINX PRINTING TECH
View PDF17 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Although these means of returning air entering the ink tank to the printhead are theoretically effective in reducing solvent loss, in practice they tend to cause solvent to condense on the electrodes and other parts of the printhead unless steps are taken to avoid this , such as heating the electrodes and other components as proposed in US4283730 and US4356500 or removing some solvent vapor from the air as proposed in EP0560332 and WO93 / 17869 so that the air returning to the print head is not fully saturated

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
  • Ink jet printing
  • Ink jet printing
  • Ink jet printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] figure 1 It is a plan view of the printing head for the continuous ink jet printer according to the first embodiment of the present invention. figure 2 yes figure 1 Partial cutaway side view of the printhead. While the printer is operating, pressurized ink is continuously supplied to the ink guns within the printhead. In a cavity within the main portion of the ink gun (not shown), a vibrating piezoelectric transducer is used to apply continuous pressure oscillations to the ink to control the manner in which the ink jet breaks up into droplets. The ink, now subjected to pressure oscillations, travels along the tube 1 to the nozzle portion 5 of the ink gun via the support substrate 3 on which many components of the print head are mounted. When the pressurized ink exits through the jet-forming orifice in the nozzle portion 5, an ink jet 7 is formed.

[0052] Initially, the ink jet 7 is a continuous uninterrupted flow of ink, but when the ink jet 7 passes through the s...

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 continuous ink jet printer has a line (69a) for venting at least some of the air that has been sucked along the gutter line (17), and a line (69b) for recirculating back to the printhead (25) at least some of the air that has been sucked down the gutter line (17). Preferably the relative proportions of vented air and recirculated air can be varied, so as to reduce solvent loss during normal operation but allow increased solvent loss if the ink is over-dilute. Preferably the air recirculated to the printhead is connected directly into the flow path from the gutter orifice to the source of gutter suction, without opening into the space containing the ink jet. This reduces the tendency of solvent in the recirculated air condense on the printhead electrodes.

Description

technical field [0001] The present invention relates to continuous ink jet printers and their printheads, and to methods of their operation. Background technique [0002] During operation of a continuous inkjet printer, a continuous stream of ink droplets is generated and means are provided to deflect the ink droplets in flight so that different ink droplets travel to different destinations. Since ink drops are continuously generated, only some of these ink drops will be needed for printing. Thus, the ink droplets required for printing are arranged to travel in a direction such that they reach the surface to be printed, while the ink droplets not required for printing are arranged to travel to a type of ink droplet generally known as an ink gutter (gutter). device, where ink droplets are collected. In almost all modern continuous inkjet printers, the ink collected at the gutter returns to the ink tank from which it is supplied to the device (sometimes called the ink gun) t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/18B41J2/185
CPCB41J2/175B41J2/18B41J2/1714B41J2/16523B41J29/377B41J29/02B41J29/38B41J2/195B41J2/1707B41J2/185B41J2/02
Inventor 安托尼·希尔
Owner LINX PRINTING TECH
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