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Ink cartridge

A technology of ink cartridges and ink chambers, which is applied in printing and other directions, and can solve problems such as complex structures and large quantities

Active Publication Date: 2014-06-18
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this valve mechanism involves a large number of parts and results in a complicated construction

Method used

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Examples

Experimental program
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no. 1 example

[0055] will refer to Figures 1 to 5B The ink cartridge 30 according to the first embodiment of the present invention is described.

[0056] 1. The overall structure of the printer

[0057] First, refer to figure 1 The printer 10 adapted to accommodate the ink cartridge 30 according to the first embodiment will be described.

[0058] The printer 10 is configured to form an image by ejecting ink droplets onto a sheet according to an ink jet recording system. as in figure 1 As shown in , the printer 10 includes an ink supply device 100 provided with a cartridge accommodating portion 110 configured to detachably accommodate an ink cartridge 30 therein. One side of the cartridge accommodating portion 110 is formed with an opening 112 exposed to the atmosphere. The ink cartridge 30 can be inserted into and removed from the cartridge accommodating portion 110 through the opening 112 .

[0059] The ink cartridge 30 stores ink to be used in the printer 10 . The printer 10 furth...

no. 2 example

[0146] then refer to Figures 6 to 9B The slider 223 according to the second embodiment of the present invention is described, wherein similar parts and members will be given the same reference numerals as those of the first embodiment to avoid redundant explanation.

[0147] The slider 223 of the second embodiment includes a slider body 224 , a cover cap 225 connected to the slider body 224 , a semipermeable membrane 127 and an O-ring 126 .

[0148] The slider body 224 includes a large diameter portion 229 and a small diameter portion 230 . The slider main body 224 is placed in the air passage 121 in an orientation such that the large-diameter portion 229 is located upstream of the small-diameter portion 230 in the sliding direction.

[0149] As in the first embodiment, the large-diameter portion 229 is formed with a large-diameter hole 233 passing through the large-diameter portion 229 in the sliding direction. However, instead of a single hole (ie, the small-diameter hole...

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PUM

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Abstract

Disclosed is an ink cartridge. The ink cartridge includes a cartridge body, an ink supply portion and an air communication portion provided at the cartridge body, a block member and a slider. The air communication portion has an inner peripheral wall defining an air passage, and a communication port for allowing communication between an ink chamber and the air passage. The block member moves from a first position to a second position by contact with the slider sliding in a sliding direction to block and open the air passage. The slider includes: a first cylindrical portion having an upstream through-hole penetrating therethrough; a second cylindrical portion having a downstream through-hole penetrating therethrough and communicating with the upstream through-hole; and a semipermeable membrane closing the upstream through-hole. The slider has a contact portion in close contact with the inner peripheral wall and positioned upstream of the block member at the first position in the sliding direction.

Description

technical field [0001] The present invention relates to an ink cartridge provided with an ink chamber and an air communication portion allowing the ink chamber to communicate with ambient air so that the pressure of the ink chamber becomes atmospheric pressure. Background technique [0002] There is known an image recording apparatus that records an image onto a recording sheet using ink. The image recording apparatus includes an inkjet type recording head, and is configured to selectively eject ink droplets from the recording head toward a recording sheet. The ink droplets adhere to the recording sheet, and thus a desired image is recorded on the recording sheet. The image recording apparatus is provided with an accommodating portion configured to accommodate an ink cartridge storing ink to be supplied to a recording head (for example, refer to Japanese Patent Application Publication No. 2009-96126). [0003] An ink cartridge to be connected to an image recording apparatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175
CPCB41J2/17556B41J2/17513
Inventor 小林哲郎佐佐木丰纪
Owner BROTHER KOGYO KK
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