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Inkjet printing device

An inkjet printing device and printing head technology, applied in the directions of inking device, printing, etc., can solve the problems of increased cost, difficulty in restarting the device, etc., and achieve the effect of preventing leakage

Active Publication Date: 2011-05-04
STORK BRADANT BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Discarding valuable fluids increases costs
In addition, restarting the device will be more difficult

Method used

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  • Inkjet printing device
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Examples

Experimental program
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Embodiment Construction

[0027] exist figure 1 In , the inkjet printing device is indicated by reference numeral 10 . Basically, the inkjet printing device 10 includes a serial printhead 20 having a nozzle array 22 and a fluid supply and circulation system. In this embodiment, the system includes a main reservoir 30 which is vented to the atmosphere through a ventilation opening 32 . The main reservoir 30 has an outlet 34 connected to an inlet 36 of a supply surge tank 38 by a supply conduit 40 provided with a pump 42 . Pump 42 draws fluid from main reservoir 30 into supply surge tank 38 . The supply surge tank 38 is closed to the atmosphere. The supply surge tank 38 includes two compartments 44 and 46 separated from each other by an overflow weir 48 . The outlet 50 of the supply conduit 40 is “connected” to the compartment 46 . In this case, the outlet 50 extends into the supply surge tank 38 so that fluid flows into the compartment 46 . The compartment 46 is provided with a bottom opening 51 a...

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PUM

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Abstract

Drop-on-demand inkjet printing device (10) comprising a through-flow print head (20) having nozzles (22) and a fluid circulation system comprising a main reservoir (30), a supply buffer tank (38), a return manifold (64), wherein the main reservoir (30) is connected to the supply buffer tank (38) wherein the supply buffer tank (38) is in fluid communication with the nozzles (22) print head (20) the nozzles (22) being in fluid communication with the return manifold (38) wherein the return manifold (64) is connected to the main reservoir (30) and both are arranged in height with respect to the nozzles (22), wherein the supply buffer tank (38) is provided with a lockable conduit (56) connecting the supply buffer tank (38) to the main reservoir (30).

Description

technical field [0001] The present invention relates to inkjet printing, and more particularly to a drop-on-demand inkjet printing device with a through-flow printing head. Background technique [0002] Inkjet printing devices with serial printheads are well known in the art, eg WO2006 / 030235A2 and WO2006 / 064036A1. In printheads with a cross-flow arrangement, fluid is continuously expelled from the nozzles to remove dust and air bubbles that may clog the nozzles, or other similar substances that may interfere with proper operation. Also the heat generated by the electronics of the printhead, such as the piezoelectric sensors used to generate the droplets, is also removed, thereby regulating the temperature of the fluid in the printhead, which is important because of the viscosity of the fluid and thus the Fluid ejection performance is temperature dependent. Inkjet printheads can be designed to produce droplets continuously or on demand. In drop-on-demand inkjet printing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/18B41J2/175
CPCB41J2/175B41J2/17513B41J2/17556B41J2/17596B41J2/18B41J2202/12
Inventor M·G·J·曼德斯F·W·J·G·范德克勒伊斯
Owner STORK BRADANT BV