Patent EP0685339A2 successfully refreshed from Google Patents.
EP0685339A2
Expired / Lapsed
EP
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Ink tank cartridge and ink filling device therefor
Assignee: Canon Inc
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Filing: 1995-05-22
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Granted: —
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Expires: 2015-05-22
Abstract
Abstract An ink tank cartridge (1) having ink-storing part for storing ink to be supplied to a recording head which ejects ink in droplets and being mountable to and demountable from a recording apparatus, the ink tank cartridge comprises a main body of a container constituting the ink-storing part; an ink-absorbent held in the main body of the container for storing the ink; an ink-supplying part for supplying the ink to the recording head; and an air communication part (4) to communicate the interior of the main body of the container with the air, the air communication part having a large-diameter opening capable of opening the interior of the main body of the container to the outside and being provided with a plug member (4a) having a fine opening (4c) attachably to and detachably from the large-diameter opening.
Inventors
- 👤 Akihiko C/O Canon K.K. Shimomura
- 👤 Hajime C/O Canon K.K. Kishida
- 👤 Makoto C/O Canon K.K. Shioya
- 👤 Osamu C/O Canon K.K. Sato
- 👤 Shoji C/O Canon K.K. Shiba
- 👤 Yoichi C/O Canon K.K. Taneya
- 👤 Mariko C/O Canon K.K. Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 23:28
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17513; B41J2/17506
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
133 words
An ink tank cartridge having ink-storing part for storing ink to be supplied to a recording head which ejects ink in droplets and being mountable to and demountable from a recording apparatus, the ink tank cartridge comprising a main body of a container constituting the ink-storing part; an ink-absorbent held in the main body of the container for storing the ink; an ink-supplying part for supplying the ink to the recording head; and an air communication part to communicate the interior of the main body of the container with the air, the air communication part having a large-diameter opening capable of opening the interior of the main body of the container to the outside and being provided with a plug member having a fine opening, attachably to and detachably from the large-diameter opening.
Claim 2
Dependent Claim
28 words
The ink tank cartridge according to claim 1, wherein ink is refilled to the ink absorbent through the large-diameter opening from which the plug member has been detached.
Claim 3
Dependent Claim
18 words
The ink tank cartridge according to claim 2, wherein the ink is filled with an ink refill kit.
Claim 4
Dependent Claim
40 words
The ink tank cartridge according to claim 3, wherein the ink refill kit comprises an ink-holding part for holding ink to be refilled, a hollow tube extending from the holding part, and a pressing mechanism to press the ink-holding part.
Claim 5
Dependent Claim
37 words
The ink tank cartridge according to claim 1, wherein the cartridge has an opening closed by a detachable plug member separately from the air communication part, and ink is filled to the ink absorbent through the opening.
Claim 6
Dependent Claim
94 words
An ink-filling device for filling ink to an ink tank through an injection opening of an ink tank for storing ink to be supplied to a recording head, the ink filling device comprising an ink-holding part for holding ink to be refilled, pressing mechanism for pressing the ink-holding part, a hollow tube extending from the ink-holding part, and a fitting member provided along the hollow tube for fitting to the injection opening, the fitting member having an air hole to communicate the interior of the ink tank with the outside in a fitted state.
Claim 7
Dependent Claim
26 words
The ink-filling device according to claim 6, wherein the ink-filling device is constructed from a biodegradable material and an ink-contacting face is worked for ink resistance.
Claim 8
Dependent Claim
27 words
The ink-filling device according to claim 7, wherein working for ink resistance is conducted with a material selected from SiO x , SiN y , and alumina.
Claim 9
Dependent Claim
29 words
The ink-filling device according to claim 8, wherein a layer of the SiO x or the SiN y is formed in a thickness ranging from 4 to 7 µm.
Claim 10
Dependent Claim
23 words
The ink-filling device according to claim 8, wherein a layer of alumina is formed in a thickness ranging from 60 to 150 nm.
Claim 11
Dependent Claim
18 words
The ink-filling device according to claim 6, wherein a gas permeation membrane is provided at the air hole.
References Cited (Backward Citations)
US4723129A
Cited
US4740796A
Cited
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