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Printing ink tank, ink and ink jet recording system using the same tank

An inkjet recording and printing ink technology, which is applied to measuring devices, measuring devices, inks, etc., can solve problems such as ink leakage, unstable internal negative pressure, and inability to reach ink, etc.

Inactive Publication Date: 2003-09-03
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the divided chamber type has a problem that when the position of the ink tank changes, the small hole cannot reach the ink depending on the amount of remaining ink, and as a result, the internal negative pressure becomes unstable, and the ink may even leak out. Therefore, this ink tank has just been restricted in use

Method used

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  • Printing ink tank, ink and ink jet recording system using the same tank
  • Printing ink tank, ink and ink jet recording system using the same tank
  • Printing ink tank, ink and ink jet recording system using the same tank

Examples

Experimental program
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Effect test

Embodiment 2

[0120] Figure 5 represents another example device.

[0121] In this embodiment, two ribs 61 are provided on the partition rib 5 of the vacuum-generating material tank 4 . An air introduction passage A51 is formed between these two ribs and the absorbent material 3 . The position of the bottom end A of the rib 61 is higher than the bottom end B of the rib plate 5, so that, as long as a rectangular parallelepiped absorbent material 3 is simply put into the vacuum-generating material tank 4, the gap 8 is covered by the absorbent material 3 . Therefore, the air introduction channel A51 can easily and stably extend to a position very close to the gap 8 . Arrow A52 indicates the air flow direction.

[0122] With this ink tank, the printing process can be effectively performed, and it has been confirmed that Figure 5 The ink surface and meniscus shown in , can be formed quickly due to the ink supply surface caused by the recording work, and the rapid replacement between air and ...

Embodiment 3

[0123] Figure 6 A device showing a third embodiment in which the number of ribs 71 is increased to increase the number of air introduction passages. Ribs 71 are provided to separate the vacuum-generating material tanks. According to this embodiment, a plurality of air introduction passages can provide stable airflow from the vent 13 to the vicinity of the gap 8, so, like the first and second embodiments, ink supply can be realized with a small pressure loss, And can stably realize high-speed printing process.

[0124] In this embodiment, even if the passage port 13 is arranged far from the gap 8, air can be smoothly introduced. Example 4

Embodiment 4

[0125] Figure 7 A device showing a fourth embodiment of the present invention.

[0126] In this embodiment, similarly to the second and third embodiments, ribs 81 are provided on the partition ribs to form air introduction passages A71. The ribs 81 are asymmetrical with respect to the ribs 5, so that the ink flows from the ink tank 6 through the gap 8 into the passage in the material tank 4 that creates a vacuum, corresponding to this ink flow A72, passing along the air introduction passage A71. The passage of the air flow A73 of the space 8 into the ink tank 6 can be formed independently of each other with respect to the center line A, so that the pressure loss due to exchange can be reduced.

[0127] More specifically, this structure is effective in reducing the pressure loss ?P required for the exchange between ink and air by about half.

[0128] Thus, ink can be stably ejected from the recording head. Example 5

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Abstract

A liquid container for a liquid jet recording apparatus comprises a first chamber containing negative pressure producing material and having a liquid outlet connectable to a liquid jet head to supply liquid from the container to the liquid jet head and an air vent for allowing ambient air into the container, wherein the liquid outlet is provided in a bottom portion of the first chamber. A second chamber communicates with the first chamber by a communication path and is substantially hermetically sealed. A wall extends upwardly from the communication path of the first chamber. An ambient air introducing path is provided for between the wall and the negative pressure producing material extending from a point partly up the wall toward the communication path for introducing ambient air into the second chamber.

Description

technical field [0001] The present invention relates to an ink tank containing ink supplied to an ink jet recording head, ink, and a jet recording apparatus using the ink tank. Background technique [0002] An ink tank used with an inkjet recording apparatus supplies an appropriate amount of ink according to the amount of ink ejected by the recording head during recording, and at the same time prevents ink from leaking through the ejection port of the recording head when recording is not performed. [0003] When the ink tank is a replaceable form, it is required that the ink tank can be easily disassembled from the recording device without ink leakage, and that the ink can be reliably supplied into the recording head. [0004] A common example of an ink tank that can be used in conjunction with an inkjet recording device is disclosed in Japanese Laid-Open Patent Application No. 87242 / 1988 (first prior art). In this application, the inkjet recording holder has an ink tank ta...

Claims

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Application Information

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IPC IPC(8): B41J2/175G01D15/16
CPCB41J2/17506B41J2/17513B41J2/1752B41J2/17523B41J2/17533B41J2/17536B41J2/17553B41J2/17556B41J2/17566B41J2002/17573C09D11/30
Inventor 小板桥规文池田雅实须釜定之浅井直人平林弘光阿部力佐藤博名越重泰清水英一郎日隈昌彦秋山勇治杉本仁松原美由纪佐藤真一后藤史博植月雅哉
Owner CANON KK
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