EP0476317A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ink tank and ink jet recording apparatus using the aforesaid ink tank
Assignee: Canon Inc
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Filing: 1991-08-16
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Granted: —
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Expires: 2011-08-16
Abstract
Abstract An ink tank for storing ink comprises an ink storage unit (B), an induction outlet (17a) provided in the ink storage unit (B) for delivering to the outside the ink stored in the ink storage unit (B), and a partition member (17e) for partitioning the region where the induction outlet (17a) is provided from the other region, having at least a part higher than the height at which the induction outlet (17a) is provided and at least a part lower than the liquid level of ink stored in the ink storage unit; thus preventing any inconveniences resulting from the mixture of air and ink by vibration in order to obtain a stable printing condition for an ink jet recording apparatus to be operated at a high speed.
Inventors
- 👤 Soichi C/O Canon Kabushiki Kaisha Hiramatsu
- 👤 Hideki C/O Canon Kabushiki Kaisha Yamaguchi
- 👤 Shinya C/O Canon Kabushiki Kaisha Matsui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17513
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
85 words
An ink tank for storing ink, comprising: an ink storage unit; an induction outlet provided in said ink storage unit for delivering to the outside the ink stored in said ink storage unit; and a partition member for partitioning the region where said induction outlet is provided from the other region, having at least a part higher than the height at which said induction outlet is provided and at least a part lower than the liquid level of ink stored in said ink storage unit.
Claim 2
Dependent Claim
38 words
The ink tank according to Claim 1, wherein an inner wall which is higher than the height of said partition member is further provided in said ink storage unit on the diagonal line of said ink storage unit.
Claim 3
Dependent Claim
42 words
The ink tank according to Claim 1, wherein said induction outlet is mounted on the leading end of an ink supply tube positioned in said ink storage unit for supplying the ink stored in said ink storage unit to the recording head.
Claim 4
Dependent Claim
41 words
The ink tank according to Claim 1, wherein said ink storage unit is provided in a sub-tank which reserves once the ink supplied from the main tank on the main body side prior to supplying the ink to the recording head.
Claim 5
Dependent Claim
22 words
The ink tank according to Claim 1, wherein said partition member comprises a plate member having two sides rectangular to each other.
Claim 6
Dependent Claim
24 words
The ink tank according to Claim 1, wherein said ink tank is the head integrated type which is provided integrally with the recording head.
Claim 7
Dependent Claim
27 words
The ink tank according to Claim 1, wherein said ink tank is installed in a carraige capable of shuttling along a platen provided for the recording apparatus.
Claim 8
Dependent Claim
82 words
An ink tank for storing ink, comprising: ink storage means for storing ink; induction outlet means provided in said ink storage means for delivering to the outside the ink stored in said ink storage means; and means provided to encircle said induction outlet, having at least a part higher than the height at which the induction outlet of said induction outlet means is provided and at least a part lower than the liquid level of ink stored in said ink storage means.
Claim 9
Dependent Claim
42 words
The ink tank according to Claim 8, wherein an inner wall which is higher than the height of said means for encircling said induction outlet is further provided in said ink storage means on the diagonal line of said ink storage means.
Claim 10
Dependent Claim
42 words
The ink tank according to Claim 8, wherein said induction outlet is mounted on the leading end of an ink supply tube positioned in said ink storage means for supplying the ink stored in said ink storage means to the recording head.
Claim 11
Dependent Claim
41 words
The ink tank according to Claim 8, wherein said ink storage means is provided in a sub-tank which reserves once the ink supplied from the main tank on the main body side prior to supplying the ink to the recording head.
Claim 12
Dependent Claim
27 words
The ink tank according to Claim 8, wherein said means provided to encircle said induction outlet comprises a plate member having two sides rectangular to each other.
Claim 13
Dependent Claim
24 words
The ink tank according to Claim 8, wherein said ink tank is the head integrated type which is provided integrally with the recording head.
Claim 14
Dependent Claim
27 words
The ink tank according to Claim 8, wherein said ink tank is installed in a carriage capable of shuttling along a platen provided for the recording apparatus.
Claim 15
Dependent Claim
129 words
An ink jet recording apparatus capable of installing an ink tank storing ink and performing recording onto a recording medium, comprising: a carriage capable of installing the ink tank and shuttling in the direction intersecting the conveying direction of the recording medium, having an ink storage unit, an induction outlet provided in said ink storage unit for delivering to the outside the ink stored in said ink storage unit, and a partition member for partitioning the region where said induction outlet is provided from the other region, having at least a part higher than the height at which said induction outlet is provided and at least a part lower than the liquid level of ink stored in said ink storage unit; and conveying means for conveying said recording medium.
Claim 16
Dependent Claim
33 words
The ink jet recording apparatus according to Claim 15, wherein said ink jet recording apparatus is of a recording type to perform recording by discharging ink from the discharging port utilizing thermal energy.
Claim 17
Dependent Claim
110 words
A closed type recording ink intermediate reservoir member receiving ink from a recording ink supply source, and at the same time that said ink received is supplied to an ink jet recording head, a predetermined liquid level of ink being defined in its inside, wherein said recording intermediate reservoir member is provided with a member encircling the vicinity of the ink induction outlet to the recording head of the main body of said recording apparatus, said member having a portion to induce the reserved ink in the enclosed space, and at least a part thereof is higher than the height of the ink induction inlet from said ink supply source.
Claim 18
Dependent Claim
37 words
The recording ink intermediate reservoir according to Claim 17, wherein at least a part of said member is shorter than the height of said liquid level, and said part is the portion where said ink is induced.
Claim 19
Dependent Claim
124 words
An ink jet recording apparatus for performing recording onto a recording medium, comprising: a recording ink intermediate reservoir having a member encircling the vicinity of the ink induction outlet to the recording head of the main body of said recording apparatus, said member having a portion to induce the reserved ink in the enclosed space, and at least a part thereof is higher than the height of the ink induction inlet from said ink supply source; means for installing the ink jet recording head, which travels in the predetermined direction with respect to the recording medium; recording control means for driving said ink jet recording head to discharge ink in the course of said traveling for the performance of recording on the recording medium.
Claim 20
Dependent Claim
42 words
The ink jet recording apparatus according to Claim 19, wherein said ink jet recording apparatus has an electrothermal converter for generating thermal energy to cause ink to generate film boiling as means to generate the energy to be utilized for ink discharging.
References Cited (Backward Citations)
No citation records indexed.
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