EP0640482A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Exchangeable ink cartridge
Assignee: Canon Inc
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Filing: 1994-08-19
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Granted: —
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Expires: 2014-08-19
Abstract
Abstract An ink cartridge includes a negative pressure producing material; an accommodating portion for accommodating the negative pressure producing material, the accommodating portion is provided with an opening for receiving an ink supply tube of an ink jet recording head; wherein the material is sandwiched between surfaces in the accommodating portion, and a distance between the surfaces smaller than twice an outer diameter of the ink supply tube. <IMAGE>
Inventors
- 👤 Masami C/O Canon Kabushiki Kaisha Ikeda
- 👤 Sadayuki C/O Canon Kabushiki Kaisha Sugama
- 👤 Tsutomu C/O Canon Kabushiki Kaisha Abe
- 👤 Toshio C/O Canon Kabushiki Kaisha Kashino
- 👤 Masahiko C/O Canon Kabushiki Kaisha Higuma
- 👤 Takeshi C/O Canon Kabushiki Kaisha Okazaki
- 👤 Hiroki C/O Canon Kabushiki Kaisha Tajima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 10:03
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17513; B41J2/1752; B41J2/17523; B41J2/17556
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
67 words
An ink cartridge comprising: a negative pressure producing material; an accommodating portion for accommodating said negative pressure producing material, said accommodating portion is provided with an opening for receiving an ink supply tube of an ink jet recording head; wherein said material is sandwiched between surfaces in said accommodating portion, and a distance between the surfaces smaller than twice an outer diameter of the ink supply tube.
Claim 2
Dependent Claim
25 words
An ink cartridge according to Claim 1, wherein a distance of insertion of the ink supply tube is smaller than the distance between the surfaces.
Claim 3
Dependent Claim
24 words
An ink cartridge according to Claim 1, wherein the distance between the surfaces is substantially equal to the diameter of the ink supply tube.
Claim 4
Dependent Claim
19 words
An ink cartridge according to Claim 1, further comprising an ink container in fluid communication with said accommodating portion.
Claim 5
Dependent Claim
19 words
An ink cartridge according to Claim 1, wherein a plurality of said ink cartridges are juxtaposed, containing different inks.
Claim 6
Dependent Claim
74 words
An ink cartridge comprising: a negative pressure producing material; an accommodating portion for accommodating said negative pressure producing member, said accommodating portion being provided with an opening for receiving an ink supply tube of a recording head; wherein a width W of a side having said opening, a height H and a depth D satisfy W ≦ H ≦ 4W, and W ≦ D ≦ 10W, wherein said ink cartridge is generally rectangular parallelepiped.
Claim 7
Dependent Claim
48 words
An ink cartridge according to Claim 6, wherein a plurality of said ink cartridges are juxtaposed into a unified ink cartridge, and for each of ink cartridges, W < = P ≦ H where P is an interval between adjacent ink jet recording head in its moving direction.
Claim 8
Dependent Claim
84 words
An ink cartridge comprising: a negative pressure producing material; an accommodating portion for accommodating said negative pressure producing material, said accommodating portion being provided with an opening for receiving an ink supply tube of an ink jet recording head; where a width W of a side having said opening, H height, a depth D and a diameter of the ink supply tube satisfy: W ≦ H ≦ 4W, W ≦ D ≦ 10W, W/2 ≦ N, wherein said ink cartridge is generally rectangular parallelepiped.
References Cited (Backward Citations)
No citation records indexed.
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