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Ink-jet head

A technology of inkjet head and ink, applied in the direction of inking device, printing, etc.

Inactive Publication Date: 2004-05-19
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manifold channels are in fluid communication with each ink pressure chamber and distribute ink therebetween

Method used

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  • Ink-jet head
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Examples

Experimental program
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Embodiment Construction

[0063] Hereinafter, an ink jet head according to an embodiment of the present invention will be described with reference to the drawings.

[0064] FIG. 2 is an exploded perspective view of the inkjet head 1 according to the embodiment of the present invention. The inkjet head 1 includes a main body 2 and four trapezoidal plate-type piezoelectric sheets 10 , and the piezoelectric sheets 10 are fixed on the top surface of the main body 2 by an adhesive. The inkjet head 1 also includes four flexible printed circuit boards 50 , which will be referred to as FPC boards 50 hereinafter. Each FPC board 50 has an extension portion 51 fixed by an adhesive on the top surface of the corresponding piezoelectric sheet 10 so as to be electrically connected with the piezoelectric sheet 10 . Also, each FPC board 50 has thereon a driver integrated circuit (driver IC) (not shown).

[0065] FIG. 3 schematically shows an exploded perspective view of the main body 2 of the inkjet head 1 shown in F...

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PUM

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Abstract

An inkjet head is composed of a plurality of plates stacked on each other. The plurality of plates includes a cavity plate formed with a plurality of ink pressure chambers and a plurality of manifold plates for forming a manifold chamber being in fluid communication with the ink pressure chambers to distribute ink thereamong. Each manifold plate is provided with an opening formed therethrough with a portion thereof being left in the opening. When the manifold chambers are stacked on each other, the openings of the manifold plates formed as above constitute a manifold channel taking the form of a closed loop. The portions of the manifold plates left in the openings are supported by a plurality of beams formed on the manifold plates. The beams are thinner than respective manifold plates, and are arranged so as not to overlap each other when viewed in a direction the manifold plates are stacked.

Description

technical field [0001] The present invention relates to an inkjet head for printing images / text on a recording medium, and more particularly, to an inkjet head comprising a common ink chamber for distributing ink to a plurality of Ink pressure chamber. Background technique [0002] figure 1 A conventional ink flow path formed in the inkjet head disclosed in Japanese Patent Application Provisional Publication No. P2001-277496 is schematically shown. The ink flow path includes a plurality of ink pressure chambers 1020 connected to a common ink chamber 1026 through corresponding ink supply conduits 1027 . Ink to be ejected from the inkjet head is first introduced into the common ink chamber 1026 through the ink supply tube 1035 , and thereafter, it is distributed from the common ink chamber 1026 into each ink pressure chamber 1020 . The ink in each ink pressure chamber 1020 is selectively squeezed to eject the ink from a nozzle 1013 in fluid communication with the pressure c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/14
CPCB41J2002/14306B41J2002/14225B41J2002/14419B41J2002/14217B41J2202/20B41J2002/14403B41J2/14209
Inventor 渡边英年广田淳近本忠信
Owner BROTHER KOGYO KK