Ink jet image forming apparatus

An imaging device and inkjet technology, applied in printing and other directions, can solve problems such as ink jetting resistance

Inactive Publication Date: 2008-12-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This pressure loss is transferred to the print head by the ink filled in the ink circulation pipe and creates resistance to ink ejection

Method used

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Embodiment Construction

[0033] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like parts throughout. The embodiment is described below in order to explain the present invention by referring to the figures.

[0034] figure 1 is a conceptual view showing the structure of an inkjet image forming apparatus according to an embodiment of the present invention.

[0035] Such as figure 1 As shown, the inkjet image forming apparatus according to the embodiment of the present invention includes a paper supply unit 10 for supplying the printing medium M; a feeding unit 20 for feeding the printing medium; An image is formed on the fed printing medium; the ink supply device 100 to supply ink to the print head 30; and the discharge unit 40 to discharge the printing medium on which the image has been printed to the outside of the image forming device.

[0036] The paper feeding unit 10 ...

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PUM

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Abstract

An ink jet image forming apparatus, which is improved in a structure of an ink supply device so as to minimize an influence due to a pressure loss generated in an ink flow passage, is provided. The ink jet image forming apparatus includes a print head to eject an ink to a printing medium, an ink tank to store the ink, an ink circulation passage through which the ink circulates between the ink tank and the print head, a pressure controller which has an ink storage unit communicating with the ink circulation passage and an air storage unit communicating with external air, a valve mounted in the ink circulation passage between the ink tank and the pressure controller, a pump mounted in the ink circulation passage and pumps the ink, and a control unit to control operations of the valve and the pump.

Description

technical field [0001] The present invention relates to an inkjet image forming device, and more particularly to an inkjet image forming device in which the structure of an ink supply device is improved so that ink can be stably ejected from a printing head. Background technique [0002] An inkjet imaging device is a device that forms an image by ejecting ink onto a printing medium. Inkjet imaging devices generally include an ink supply for supplying ink stored in an ink reservoir to ink channels within the printhead. Ink supplied to the printhead is ejected onto a print medium through the printhead to print an image. At this time, if the ink stored in the ink tank contains gas components dissolved therein, or if air bubbles are generated in the ink when the ink passes through the ink supply device, the ink cannot be ejected stably, which causes image quality problems. deterioration. [0003] In order to solve this problem, Korean Patent No. 708195 relates to an ink circu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175
CPCB41J2/17556B41J2/18B41J2/175B41J2/17596B41J2/17509B41J2/125
Inventor 李济允朴辰昊姜承旭李泳洙李仁秀文溢柱
Owner SAMSUNG ELECTRONICS CO LTD
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