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Liquid storage unit and liquid ejecting apparatus

A liquid storage and liquid technology, which is applied to the device for coating liquid on the surface, power transmission device, printing and other directions, which can solve the problem that the total degassing degree of the ink cannot reach a sufficient level.

Inactive Publication Date: 2007-02-14
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, despite one side being covered with a film with high gas barrier properties, the overall degree of outgassing of the ink filled in this space cannot be achieved sufficiently high, since a large part of the surface of said space is defined by the body

Method used

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  • Liquid storage unit and liquid ejecting apparatus
  • Liquid storage unit and liquid ejecting apparatus
  • Liquid storage unit and liquid ejecting apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] The following will refer to Figures 1 to 5 A first embodiment according to the present invention will be described.

[0049] In an inkjet printer (hereinafter referred to as a printer) as a liquid ejecting device, figure 1 The printer body 11 shown in is equipped in a case not shown. The printer body 11 includes a frame 12 and a paper feed member 13 provided in the frame 12 . The paper is conveyed onto the paper feeding part 13 by a paper feeding mechanism not shown. Also, a guide member 14 is provided between the right side plate 12a and the left side plate 12b in the frame 12 in parallel to the paper feeding member 13, and the carriage 15 is slidably supported on the guide member 14. The carriage 15 is connected to a carriage motor 17 provided on the rear plate 12 c of the frame 12 through a timing belt 16 . The carriage 15 reciprocates along the guide member 14 by the driving operation of the carriage motor 17 .

[0050] Also, a recording head 20 as a liquid e...

no. 2 example

[0078] The following will refer to Figure 6 A second embodiment according to the present invention is described. In the second embodiment, only the structure of the ink cartridge according to the first embodiment is changed. Therefore, detailed descriptions of the same parts will be omitted.

[0079] Figure 6 is along image 3 A cross-sectional view of the ink cartridge 49 taken along line A-A in the center illustrates the case of covering with the outer film 49b and the protective cap 49h. The ink cartridge 49 includes a case 49a in the shape of a rectangular parallelepiped, the upper surface of which is opened.

[0080] The film welding portion 49c and the cover welding portion 49d protrude from the case 49a formed of polypropylene. The welded portion 49c is formed like a square frame, and the cover welded portion 49d is formed like a square frame to surround the film welded portion 49c. In addition, the cover welding portion 49d is formed higher than the film weldin...

no. 3 example

[0089] The following will refer to Figures 7 to 9 A third embodiment according to the present invention will be described. The third embodiment relates to the connection portion of the ink cartridge. Therefore, detailed descriptions of the same parts will be omitted.

[0090] Figure 7 is a plan view showing the ink cartridge 50 according to the present embodiment viewed from above. Figure 8 is showing the cartridge 50 along the Figure 7 The sectional view taken on the line D-D in the middle, and Figure 9 is showing the cartridge 50 along the Figure 7 Sectional view taken along line E-E. Figure 8 and Figure 9 A case is shown where the housing 50a is covered by a cover 50b. The ink cartridge 50 includes a case 50a having a rectangular parallelepiped shape with an open upper surface, and the case 50a is sealed by covering the opening portion with a cap 50b.

[0091] The film welding portion 50c and the cover welding portion 50d protrude from the case 50a formed o...

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PUM

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Abstract

The invention provides a liquid storage unit comprising: a case, a liquid storage part for storing a liquid in the case, with which a liquid part communicates; at least one gas accommodation part for accommodating a gas in the case, with which a gas port communicates, wherein the liquid in the liquid storage part is led outs through the liquid port by a pressure of a gas introduced from the gas port; an inner case provided in the case having a pair of openings on opposite side faces thereof; and a pair of flexible partitioning members sealing said pair of openings of the inner case respectively, thereby partitioning the liquid storage part therebetween and defining said at least one of the gas accommodation part in cooperation with the case.

Description

technical field [0001] The present invention relates to a liquid storage unit and a liquid ejection device having the liquid storage unit mounted thereon. Background technique [0002] This application is based on Japanese Patent Application No. 2003-40631, the entire contents of which are hereby incorporated by reference. [0003] Conventionally, a liquid ejecting device for ejecting liquid droplets from nozzles of a liquid ejecting head includes an inkjet printer. Some inkjet printers include an off carriage type ink supply system for mounting the ink cartridges in a location other than the carriage. The case of having an ink supply system of the off-carriage type includes a case of having an ink cartridge having a large capacity for a larger amount of printing, and a case of not installing an ink cartridge but reducing the size of the carriage and reducing the size and thickness of the inkjet printer . [0004] For example, in an off-carriage type ink supply system, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175B41J25/34B05C11/11B05C11/10
Inventor 木村仁俊
Owner SEIKO EPSON CORP