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Ink box and its negative pressure regulating mechanism

A technology of adjusting mechanism and ink cartridge, which is applied in printing and other directions, can solve the problems of inability to supply ink and output ink, unstable pressure adjustment, and ink leakage from the ink outlet.

Inactive Publication Date: 2007-09-19
MICROJET TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the introduction of the negative pressure adjustment mechanism of the ink cartridge of the present invention, the stability of the ink supply of the ink cartridge can be improved, and the pressure regulation instability, insufficient sensitivity, limited negative pressure adjustment range and ink leakage of the ink outlet of the conventional ink cartridge can be solved. Unable to supply ink or uneven ink output

Method used

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  • Ink box and its negative pressure regulating mechanism
  • Ink box and its negative pressure regulating mechanism
  • Ink box and its negative pressure regulating mechanism

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Embodiment Construction

[0033] Please refer to FIG. 3( a )-( d ), which are schematic diagrams showing the structure of the ink cartridge and its negative pressure adjustment according to a preferred embodiment of the present invention. As shown in FIGS. 3( a )-( d ), the ink cartridge of the present invention includes a casing 31 inside which is provided an ink tank 311 for storing ink. A first ventilation hole 312 is formed on the top of the casing 31 and a second ventilation hole 313 is formed on the bottom thereof. The first and second ventilation holes 312, 313 can communicate with external atmospheric pressure. The bottom of the casing 31 is further provided with an ink outlet 32 ​​, which communicates with the ink tank 311 and can spray ink onto the inkjet medium as required. In this embodiment, the air bag set 33 has at least two air bags, and each air bag is disposed in the ink tank 311 and adjacent to the inner wall of the casing 31 . The air bag set 33 communicates with the first air hole...

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PUM

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Abstract

A ink cartridge consists of casing, ink groove, first venthole on top of casign, second venthole on bottom of casing and ink oulet, air bag group having at least two air bags in casing wherein the air bags are respectively near inner wall of casing and connected with first venthole, filter core seat on bottom of casing and connected with second venthole, filter core in filter core seat for adjusting air entering ink cartridge to regulate pressure in ink cartridge and / or make relative the volume change of air bag, spring chip group having at least two spring chips mounted on bottom of filter core seat or casing wherein said spring chips are respectively extended to inner wall of casing and contacted with relative air bag for adjusting the volume change of relative air bag.

Description

(1) Technical field [0001] The invention relates to an ink cartridge and its negative pressure regulating mechanism, especially an ink cartridge and its negative pressure regulating mechanism suitable for an inkjet printer. (2) Background technology [0002] With the popularization of personal computers and the rapid growth of the Internet in recent years, inkjet printers have almost become an indispensable product in personal computer equipment. For general users, a basic inkjet printer is enough to meet all document processing needs. However, in addition to the function of the printer itself, the choice of ink, consumables, printing paper, and usage will determine the quality of printing and whether the printer can be used for a long time. [0003] With the development of inkjet printing technology up to now, the ways of controlling the ink droplets released from the printhead to the inkjet media can be roughly divided into two main streams. One is Thermal Bubble Ink Jet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/175
CPCB41J2/17596B41J2/17513B41J2/17556
Inventor 罗进添
Owner MICROJET TECH