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Liquid-ejecting method and liquid-ejecting apparatus

A jetting method and jetting device technology, applied in directions such as printing, can solve problems such as image quality deterioration

Inactive Publication Date: 2013-06-05
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if Figure 21 As shown, when dots formed of a plurality of ink droplets are combined to form one pixel, the shape of the pixel is not close to a circle, which may cause deterioration of image quality (fourth problem)

Method used

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  • Liquid-ejecting method and liquid-ejecting apparatus
  • Liquid-ejecting method and liquid-ejecting apparatus
  • Liquid-ejecting method and liquid-ejecting apparatus

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Embodiment Construction

[0044] An embodiment of the present invention will be described below with reference to the accompanying drawings. In the following description, an ink jet printer (hereinafter simply referred to as a printer) is taken as an example of the liquid ejecting apparatus of the present invention.

[0045] In the description, "ink droplet" refers to a minute amount (for example, several picoliters) of ink (liquid) ejected from the nozzle 18 of the liquid ejection unit, which will be described later. Likewise, "dot" refers to a substance formed by a train of ink droplets landing on a recording medium such as photographic paper.

[0046] In addition, "pixel" refers to the smallest unit of an image, and a "pixel area" is defined as an area on which one pixel is formed,

[0047] On one pixel area, a predetermined number of liquid droplets land to form one pixel without one dot (one-gradation gradation) or one pixel composed of a plurality of dots (three-gradation or multi-gradation grad...

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Abstract

The invention relates to a liquid-ejecting method and liquid-ejecting apparatus. In a liquid-ejecting method for ejecting liquid contained in a liquid chamber from a nozzle as a liquid droplet group, the ejection amount of each liquid droplet of the continuously ejected liquid-droplet group can be stabilized corresponding to a wide frequency band of a pulse signal. Also, when one pixel is formed with a plurality of liquid droplets using a head capable of deflecting the ejecting direction of the liquid droplet, the image quality is improved by reducing the landing positional displacement between plural liquid droplets for forming the one pixel.

Description

technical field [0001] The present invention relates to a liquid ejecting device having a head with a plurality of liquid ejecting units each having a nozzle, and to a liquid ejecting method. Background technique [0002] As an example of a liquid ejecting apparatus having a head with a plurality of liquid ejecting units each having a nozzle, an ink jet type recording apparatus is widely known. Ink-jet type recording devices such as ink-jet printers have been widely used, and their high-speed recording, cheap running cost and easy colorization, the technology of forming high-resolution and high-quality printed images has been well developed. [0003] For example, there is a serial print head which reciprocates over the entire width of a recording medium, in which ink is ejected from a liquid ejection unit arranged in the print head to form a printed image. In the string printhead, a multi-channel system is used. During the reciprocating movement of the print head, when the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/01B41J2/045B41J2/135B41J2/07B41J2/055B41J2/205
Inventor 桑原宗市河野稔中村正人
Owner SONY CORP
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