Ink cartridge

A technology of ink cartridges and ink reservoirs, which is used in printing, buoy liquid level indicators, etc. to achieve the effect of simplifying the structure of the ink cartridge and minimizing the size

Active Publication Date: 2007-08-15
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the ink cartridge disclosed in Patent Document 1, since a relatively large light shielding mechanism having a light shield and a float provided on both ends of a lever supported by a support table is provided in the ink tank, the ink cartridge must be enlarged. dimensions to accommodate such shading mechanisms

Method used

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Examples

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Embodiment Construction

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below while referring to the accompanying drawings. Fig. 1 is a perspective view showing the exterior of an ink cartridge 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of FIG. 1 . The side wall 160 to be described later is light-transmissive (see-through), and enables observation of the inside of the ink tank 100 to be described later. However, the inside of the ink tank 100 is omitted in FIG. 2 .

[0019] As shown in Figures 1 and 2, the ink cartridge 1 includes an ink reservoir 100, an outer case 200, and a protector 300, the ink reservoir 100 is used to store light-transmittable ink, and the outer case 200 covers the entire ink reservoir 100, when the ink cartridge 1 is transported, the protector 300 is connected to the case 200 to protect the ink tank 100. In the present embodiment, the ink tank 100, th...

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PUM

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Abstract

An ink cartridge is disclosed to detect whether ink within an ink reservoir chamber has been reduced while stringently avoiding any increase in size of the ink cartridge and reducing the amount of ink that can be stored within the ink reservoir chamber. A light blocking part (42) is formed near the edge of the left side of an arm part (41), which is supported such that it can rotate on a support table (31) by the fulcrum (41a) near the edge of the right side. The arm part (41) has a branched arm part (44), which is branched and extends downwards in the part between the light blocking part (41) and the fulcrum (41a), and a float part (43) is disposed at the edge of branched arm part. When sufficient ink is remained within the ink reservoir chamber (111), the light blocking part (42) will block the light emitted from an light emitting part (1014a) of an optical sensor. When the ink within the ink reservoir chamber (111) is reduced, the light blocking part (42) will move downwards, and it will no longer block the light emitted by the light emitting part (1014a), so that a light receiving part (1014b) will receive the light.

Description

technical field [0001] The present invention relates to ink cartridges for supplying ink to inkjet printers. Background technique [0002] Among the ink cartridges that supply ink to the printer, there are ink cartridges configured to be able to detect when the amount of remaining ink in the ink cartridge has become low. For example, in the ink cartridge described in Patent Document 1, a light-shielding mechanism including a lever whose center portion in the direction in which the lever extends is supported so that the lever can be wound around the ink container (ink storage) The support table at the bottom of the device) rotates. The shade mechanism includes a shade (light blocking portion) at one end of the lever and a float at the other end of the lever. When there is a large amount of ink in the ink tank, due to the upward movement of the float due to buoyancy, the lever turns, and the shutter is located near the bottom of the concave part of the ink tank, and blocks t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175G01F23/30G01F23/64
CPCB41J2002/17573B41J2/17566B41J2002/17576
Inventor 佐佐木丰纪服部信吾横江好则桃崎元博
Owner BROTHER KOGYO KK
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