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Circulation passing multiple trough

A technology of fluid and fluid jetting, which is applied in the direction of printing and inking devices, and can solve problems such as unfavorable fluid jetting devices

Inactive Publication Date: 2004-05-26
HEWLETT PACKARD DEV CO LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, air bubbles that are detrimental to the operation of the fluid ejection device and / or allow particles to collect within the openings of the substrate
Moreover, heat is generated during operation of the fluid ejection device that is detrimental to the operation of the fluid ejection device

Method used

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  • Circulation passing multiple trough
  • Circulation passing multiple trough
  • Circulation passing multiple trough

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] In the following detailed description of the preferred embodiments, reference is made to the drawings constituting a part thereof, and specific embodiments in which the present invention can be implemented are illustrated by examples. In this regard, directional terms, such as "top", "bottom", "front", "rear", "front", "rear", etc., can be used with reference to the directions of the described figures. Because the components of the present invention can be placed in many different orientations, the directional terminology is used for explanatory purposes rather than being restrictive. It is understood that other embodiments can be used and structural or logical changes can be made without departing from the scope of the present invention. Therefore, the following detailed description has no limiting meaning, and the scope of the present invention is defined by the appended claims.

[0015] figure 1 One embodiment of the inkjet printing system 10 according to the present i...

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PUM

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Abstract

A fluid ejection device includes a substrate having a first side and a second side opposite the first side, and a plurality of drop ejecting elements formed on the first side of the substrate. The substrate includes a first opening formed in the first side and a plurality of second openings formed in the second side with each of the second openings communicating with the first opening, wherein the second openings and the first opening are adapted to circulate fluid through the substrate.

Description

Technical field [0001] The present invention relates generally to fluid ejection devices, and more particularly to fluid circulation through the fluid ejection devices. Background technique [0002] An inkjet printing system (as an embodiment of a fluid ejection system) includes a printing head, an ink supply source for supplying fluid ink to the printing head, and an electronic controller for controlling the printing head. The print head (as an embodiment of the fluid ejection device) ejects ink droplets through a plurality of nozzles or nozzles to a printing medium (for example, a piece of paper, etc.) to print on the printing medium. Generally, the nozzles are arranged in an array or multiple arrays so that when the print head and the printing medium move relative to each other, the ink ejected from the nozzles in an appropriate sequence causes characters or other images to be printed on the printing medium. [0003] In some fluid ejection devices such as print heads, a plural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/05B41J2/14B41J2/18
CPCB41J2002/14387B41J2202/05B41J2/14145B41J2/18
Inventor A·E·齐尔兹J·S·赫斯J·P·基姆斯S·D·纳帕克
Owner HEWLETT PACKARD DEV CO LP