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Liquid ejecting apparatus

A technology of liquid and ejection parts, applied in the direction of inking device, printing, etc.

Pending Publication Date: 2022-05-03
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in view of the fact that the number of piezoelectric elements included in the liquid ejection device is further increasing in recent years, in the inkjet printers described in Patent Document 1 and Patent Document 2, the high voltage for driving the piezoelectric elements , When transmitting a high-current drive signal, there is still room for further improvement from the viewpoint of reducing the waveform disturbance of the drive signal caused by the inductance component generated in the transmission path

Method used

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  • Liquid ejecting apparatus
  • Liquid ejecting apparatus
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Embodiment Construction

[0031] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The drawings used are for convenience of description. In addition, the embodiments described below do not unduly limit the content of the present invention described in the claims. In addition, all the structures demonstrated below are not necessarily the essential structural elements of this invention.

[0032] 1. Functional structure of the liquid ejection device

[0033] First, use figure 1 The functional configuration of the liquid ejecting device 1 in the present embodiment will be described. The liquid ejection device 1 in the present embodiment will be described by taking an example of an inkjet printer that ejects ink onto a medium as an example of a liquid to form a desired image on the medium. Such a liquid ejection apparatus 1 receives image data transmitted by wired communication or wireless communication from an external device such as a compute...

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PUM

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Abstract

The invention provides a liquid ejecting apparatus which can reduce waveform disorder of a driving signal generated by an inductance component generated in a transmission path. A head unit that ejects a liquid includes an ejection portion that ejects the liquid, a first rigid substrate that transmits a drive signal, and a first connector that includes a first terminal to which the drive signal is input. A drive signal output unit that outputs a drive signal has a second rigid substrate, a second connector including a second terminal that outputs the drive signal, a D / A converter, and a drive signal output circuit, the first connector being provided on the first rigid substrate, the second connector, the D / A converter, and the drive signal output circuit being provided on the second rigid substrate. One of the first connector and the second connector is in the shape of a socket, the other is in the shape of a plug, and the first connector and the second connector are embedded in a manner that the first terminal and the second terminal are in direct contact.

Description

technical field [0001] The present invention relates to a liquid ejection device. Background technique [0002] A liquid ejecting device such as an inkjet printer drives a piezoelectric element as a driving element provided in a print head included in the head unit by a drive signal, thereby ejecting a liquid such as ink filled in a chamber from a nozzle, onto a medium. Form text and images. Since the piezoelectric element is a capacitive load such as a capacitor from an electrical point of view, it is necessary to supply a sufficient current in order to operate the piezoelectric element of each nozzle. Therefore, in the above-described inkjet printer, the drive circuit is configured to supply a high-voltage drive signal amplified by the amplifier circuit to the head to drive the piezoelectric element. [0003] For example, Patent Document 1 discloses an ink jet printer in which a piezoelectric element included in a discharge module is supplied with a drive signal output f...

Claims

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Application Information

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IPC IPC(8): B41J2/07B41J2/045
CPCB41J2/07B41J2/04501B41J2/04581B41J2/04541B41J2/04588B41J2/04593B41J2/04596B41J2/0455B41J2202/20B41J2202/19B41J2/14233B41J2002/14419B41J2002/14491
Inventor 松本祐介松山彻
Owner SEIKO EPSON CORP