Patent US5156470A successfully refreshed from Google Patents.
US5156470A
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US
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Two cartridge ink-supply system for a multi-color dot matrix printer
Assignee: Seiko Epson Corp
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Filing: 1990-11-30
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Granted: 1992-10-20
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Expires: 2010-11-30
Abstract
Abstract An ink-supply system for a dot matrix printer including a unitary ink-supply tank formed with a plurality of ink-supply sections and a further separate ink-supply tank. An ink absorbing member formed of a porous material is positioned in each of the ink-supply sections and in the further separate ink-supply tank, each of the ink absorbing members substantially filling its respective ink-supply section or further separate ink-supply tank, substantially the desired capacity of ink for each of the ink-supply sections of the further separate ink-supply tank being carried by the respective ink absorbing member thereof. At least two of the ink-supply sections carry ink of different colors other than black, the further ink-supply tank carrying black ink.
Inventors
- 👤 Takashi Suzuki
- 👤 Masanao Matsuzawa
- 👤 Yoshinori Miyazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:17
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/22; B41J2/23; B41J2/235; B41J2/25; B41J2/255; B41J2/005; B41J2/01; B41J2/17; B41J2/175; B41J2/17503; B41J2/17513; B41J2/305
Claims Analysis
Total Claims: 72
Claim 1
Independent Claim
152 words
An ink-supply system for a dot matrix printer head, comprising: a unitary ink-supply tank formed with a plurality of ink-supply sections, each of said in-supply sections having an ink-supply delivery port; an ink absorbing member in each of said ink-supply sections formed of a porous material, each said ink absorbing member substantially filling its respective ink-supply section; and substantially the desired capacity of ink for each of said ink-supply sections being carried by the corresponding ink absorbing member, at least two of said ink-supply sections carrying ink of different colors, said ink in said ink-supply sections being of a color other than black; and a further separate ink-supply tank formed with an ink-supply delivery port, a separate ink absorbing member formed of a porous material contained within said separate ink-supply tank, said separate ink absorbing member substantially filling said separate ink-supply tank, the ink contained in said separate ink-supply tank being black.
Claim 2
Dependent Claim
152 words
An ink-supply system for a dot matrix printer head, comprising: a unitary ink-supply tank formed with a plurality of ink-supply sections, each of said in-supply sections having an ink-supply delivery port; an ink absorbing member in each of said ink-supply sections formed of a porous material, each said ink absorbing member substantially filling its respective ink-supply section; and substantially the desired capacity of ink for each of said ink-supply sections being carried by the corresponding ink absorbing member, at least two of said ink-supply sections carrying ink of different colors, said ink in said ink-supply sections being of a color other than black; and a further separate ink-supply tank formed with an ink-supply delivery port, a separate ink absorbing member formed of a porous material contained within said separate ink-supply tank, said separate ink absorbing member substantially filling said separate ink-supply tank, the ink contained in said separate ink-supply tank being black.
Claim 3
Dependent Claim
65 words
The ink-supply system of claim 1, wherein each of said ink absorbing members comprises at least two separate porous members disposed as stacked layers, one of said porous members which is closer to the associated ink-supply port being made of a porous material having a smaller average pore size than the porous material of the other porous member more remote from the associated ink-supply port.
Claim 4
Dependent Claim
23 words
The ink-supply system of claim 1, wherein said ink-supply sections comprised three ink tank sections for respectively storing yellow, magenta and cyan inks.
Claim 5
Dependent Claim
59 words
The ink-supply system of claim 3, and including a dot matrix printer head, said dot matrix printer head being adapted to be scanned in a printing direction, said ink-supply sections being positioned on said head with the ink-supply section containing said yellow ink being positioned first in a direction of scanning of the dot matrix printer head during printing.
Claim 6
Dependent Claim
24 words
The ink-supply system of claim 1, wherein each of said ink absorbing members is compressed in the vicinity of the associated ink-supply delivery port.
Claim 7
Dependent Claim
54 words
The ink-supply system of claim 5, wherein each of said ink-supply sections and said further ink-supply tank includes a wall facing the associated ink-supply delivery port, at least a portion of the each of said ink absorbing members being compressingly contained in the space between the associated ink-supply delivery port and the associated wall.
Claim 8
Dependent Claim
72 words
The ink-supply system of claim 6, wherein the respective wall of each of said ink-supply sections and of said further ink-supply tank facing an associated ink-supply delivery port forms a part of a cover means bearing on the associated ink absorbing member when assembled to said first mentioned and further ink-supply tanks to at least in part apply the compressive force to effect compression of said each of said ink absorbing members.
Claim 9
Dependent Claim
38 words
The ink-supply system of claim 5, said ink-supply sections and further ink-supply tank each including an inner wall surface having projections to provide a space between said each of said ink absorbing members and the associated wall surface.
Claim 10
Dependent Claim
29 words
The ink-supply system of claim 8, and including means for providing ambient air to the space between said each of said ink absorbing members and the associated wall surface.
Claim 11
Dependent Claim
89 words
The ink-supply system of claim 9, wherein the wall of each of said ink-supply sections and of said further ink-supply tank facing the associated ink-supply delivery port said part of a cover means each bearing on an associated ink absorbing member when assembled to said ink-supply sections and said further ink-supply tank to at least in part apply a compressive force to effect compression of said each of said ink absorbing members, at least a portion of said projections extending from the inner wall surfaces of said cover means.
Claim 12
Dependent Claim
37 words
The ink-supply system of claim 8, wherein said projections are formed in an inner wall surface of the respective wall of each of said ink-supply sections an said further ink-supply tank facing the associated ink-supply delivery port.
Claim 13
Dependent Claim
28 words
The ink-supply system of claim 11, and including means for providing ambient air to the space between said each of said ink absorbing members and said wall surface.
Claim 14
Dependent Claim
33 words
The ink-supply system of claim 8, said ink being impregnated in each ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 15
Dependent Claim
33 words
The ink-supply system of claim 1, said ink being impregnated in each ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 16
Dependent Claim
41 words
An ink-supply system as recited in claim 1, where the unitary ink-supply tank is formed with three ink-supply sections, the ink capacity of said further separate ink-supply tank being in excess of one-third times the capacity of said three ink-supply sections.
Claim 17
Dependent Claim
144 words
An ink-supply system for a dot matrix printer head, comprising: a unitary ink-supply tank formed with a plurality of ink-supply sections; a further separate ink-supply tank; an ink absorbing member formed of a porous material in each of said ink-supply sections and in said further separate ink-supply tank, each said ink absorbing member substantially filling its respective ink-supply section or further separate ink-supply tank; substantially the desired capacity of ink for each of said ink-supply sections and of said further separate ink-supply tank being carried by the respective ink absorbing member thereof, at least two of said ink-supply sections carrying ink of different colors other an black, said further separate ink-supply tank carrying blank ink; and separate means projecting into each of said ink-supply tank sections and into said further separate ink-supply tank for receiving and transmitting ink from the associated ink absorbing member.
Claim 18
Dependent Claim
144 words
An ink-supply system for a dot matrix printer head, comprising: a unitary ink-supply tank formed with a plurality of ink-supply sections; a further separate ink-supply tank; an ink absorbing member formed of a porous material in each of said ink-supply sections and in said further separate ink-supply tank, each said ink absorbing member substantially filling its respective ink-supply section or further separate ink-supply tank; substantially the desired capacity of ink for each of said ink-supply sections and of said further separate ink-supply tank being carried by the respective ink absorbing member thereof, at least two of said ink-supply sections carrying ink of different colors other an black, said further separate ink-supply tank carrying blank ink; and separate means projecting into each of said ink-supply tank sections and into said further separate ink-supply tank for receiving and transmitting ink from the associated ink absorbing member.
Claim 19
Dependent Claim
23 words
The ink-supply system of claim 16, wherein said ink-supply sections comprise three ink tank sections for respectively storing yellow, magenta and cyan inks.
Claim 20
Dependent Claim
56 words
The ink-supply system of claim 16, and including a dot matrix printer head, said dot matrix printer head being adapted to be scanned in a printing direction, said ink-supply sections being positioned with the ink-supply section containing said yellow ink being positioned first in a direction of scanning of the dot matrix printer head during printing.
Claim 21
Dependent Claim
26 words
The ink-supply system of claim 17, wherein each of said ink absorbing members is compressed in the vicinity of the associated ink receiving and transmitting means.
Claim 22
Dependent Claim
70 words
The ink-supply system of claim 19, wherein each of said ink absorbing members comprises at least two separate porous members disposed as stacked layers, one of said porous members which is closer to the associated ink receiving and transmitting means being made of a porous material having a smaller average pore size than the porous material of the other porous member more remote from said ink receiving and transmitting means.
Claim 23
Dependent Claim
49 words
The ink-supply of claim 19, wherein said ink-supply sections and further ink-supply tank each includes a wall facing the associated receiving and transmitting means, said each of said ink absorbing members being compressingly contained in the space intermediate the associated wall and the associated ink receiving and transmitting means.
Claim 24
Dependent Claim
72 words
The ink-supply system of claim 21, wherein said wall of each of said ink-supply sections and further ink-supply tank facing the associated ink receiving and transmitting means is part of a covered means bearing on said each of said ink absorbing members when assembled to said first mentioned or further ink-supply tanks to at least in part apply a compressive force to effect compression of said each of said ink absorbing members.
Claim 25
Dependent Claim
38 words
The ink-supply system of claim 21, said ink-supply sections and further ink-supply tank each including an inner wall surface having projections to provide a space between said each of said ink absorbing members and the associated wall surface.
Claim 26
Dependent Claim
28 words
The ink-supply system of claim 23, and including means for providing ambient air to the space between said each of said ink absorbing members and the wall surface.
Claim 27
Dependent Claim
89 words
The ink-supply system of claim 24, wherein the wall of each of said ink-supply sections and further ink-supply tank facing the associated ink receiving and transmitting means is a part of a cover means each bearing on an associated ink absorbing member when assembled to said ink-supply tank and further ink-supply tank to at least in part apply a compressive force to effect compression of said each of said ink absorbing members, at least a portion of said projections extending from the inner wall surface of said cover means.
Claim 28
Dependent Claim
37 words
The ink-supply system of claim 22, wherein said projections are formed in an inner wall surface of said wall of each of said ink-supply sections and further ink-supply tank facing the associated ink receiving and transmitting means.
Claim 29
Dependent Claim
28 words
The ink-supply system of claim 26, and including means for providing ambient air to the space between said each of said ink absorbing members and associated wall surface.
Claim 30
Dependent Claim
32 words
The ink-supply system of claim 22, said ink being impregnated in each ink-absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 31
Dependent Claim
32 words
The ink-supply system of claim 22, said ink being impregnated in each ink-absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 32
Dependent Claim
41 words
An ink-supply system as recited in claim 16, wherein the unitary ink-supply tank is formed with three ink-supply sections, the ink capacity of said further separate ink-supply tank being in excess of one-third times the capacity of said three ink-supply sections.
Claim 33
Dependent Claim
171 words
A dot matrix printer, comprising: printing means for applying ink in a dot matrix to effect printing; and an ink supply means for delivering ink to said printing means comprising: a unitary ink-supply tank formed with plurality of ink-supply sections, each of said ink-supply sections having an ink-supply delivery port; an ink absorbing member in each of said ink-supply sections formed of a porous material, each said ink absorbing member substantially filling its respective ink-supply section; and substantially the desired capacity of ink for each of said ink-supply sections being carried by the corresponding ink absorbing members, at least two of said ink-supply sections carrying ink of different colors, said ink in said ink-supply sections being of a color other than black; and a further separate ink-supply tank formed with an ink-supply delivery port, a separate ink absorbing member formed of a porous material contained within said separate ink-supply tank, said separate ink absorbing member substantially filling said separate ink-supply tank, the ink contained in said separate ink-supply tank being black.
Claim 34
Dependent Claim
171 words
A dot matrix printer, comprising: printing means for applying ink in a dot matrix to effect printing; and an ink supply means for delivering ink to said printing means comprising: a unitary ink-supply tank formed with plurality of ink-supply sections, each of said ink-supply sections having an ink-supply delivery port; an ink absorbing member in each of said ink-supply sections formed of a porous material, each said ink absorbing member substantially filling its respective ink-supply section; and substantially the desired capacity of ink for each of said ink-supply sections being carried by the corresponding ink absorbing members, at least two of said ink-supply sections carrying ink of different colors, said ink in said ink-supply sections being of a color other than black; and a further separate ink-supply tank formed with an ink-supply delivery port, a separate ink absorbing member formed of a porous material contained within said separate ink-supply tank, said separate ink absorbing member substantially filling said separate ink-supply tank, the ink contained in said separate ink-supply tank being black.
Claim 35
Dependent Claim
66 words
The dot matrix printer of claim 31, wherein each of said ink absorbing members comprises at least two separate porous members disposed as stacked layers, one of said porous members which is closer to the associated ink-supply port being made of a porous material having a smaller average pore size than the porous material of the other porous member more remote from the associated ink-supply port.
Claim 36
Dependent Claim
24 words
The dot matrix printer of claim 31, wherein said ink-supply sections comprise three ink tank sections for respectively storing yellow, magenta and cyan inks.
Claim 37
Dependent Claim
64 words
The dot matrix printer of claim 33, said printer means including a dot matrix printer head carrying said ink supply means, said dot matrix printer head being adapted to be scanned in a printing direction, said ink-supply sections being positioned with the ink-supply section containing said yellow ink being positioned first in a direction of scanning of the dot matrix printer head during printing.
Claim 38
Dependent Claim
25 words
The dot matrix printer of claim 31, wherein each of said ink absorbing members is compressed in the vicinity of the associated ink-supply delivery port.
Claim 39
Dependent Claim
55 words
The dot matrix printer of claim 35, wherein each of said ink-supply sections and said further ink-supply tank includes a wall facing the associated ink-supply delivery port, at least a portion of the each of said ink absorbing members being compressingly contained in the space between the associated ink-supply delivery port and the associated wall.
Claim 40
Dependent Claim
73 words
The dot matrix printer of claim 36, wherein the respective wall of each of said ink-supply sections nd of said further ink-supply tank facing an associated ink-supply delivery port forms a part of a cover means bearing on the associated ink absorbing member when assembled to said first mentioned and further ink-supply tanks to at least in part apply the compressive force to effect compression of said each of said ink absorbing members.
Claim 41
Dependent Claim
39 words
The dot matrix printer of claim 35, said ink-supply sections and further ink-supply tank each including an inner wall surface having projections to provide a space between said each of said ink absorbing members and the associated wall surface.
Claim 42
Dependent Claim
30 words
The dot matrix printer of claim 38, and including means for providing ambient air to the space between said each of said ink absorbing members and the associated wall surface.
Claim 43
Dependent Claim
90 words
The dot matrix printer of claim 39, wherein the wall of each of said ink-supply sections and of said further ink-supply tank facing the associated ink-supply delivery port is apart of a cover means each bearing on an associated ink absorbing member when assembled to said ink-supply sections and said further ink-supply tank to at least in part apply a compressive force to effect compression of said each of said ink absorbing members, at least a portion of said projections extending from the inner wall surfaces of said cover means.
Claim 44
Dependent Claim
38 words
The dot matrix printer of claim 38, wherein said projections are formed in an inner wall surface of the respective wall of each of said ink-supply sections and said further ink-supply tank facing the associated ink-supply delivery port.
Claim 45
Dependent Claim
29 words
The dot matrix printer of claim 41, and including means for providing ambient air to the space between said each of said ink absorbing members and said wall surface.
Claim 46
Dependent Claim
34 words
The dot matrix printer of claim 38, said ink being impregnated in each ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 47
Dependent Claim
34 words
The dot matrix printer of claim 31, said ink being impregnated in each ink absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 48
Dependent Claim
41 words
The dot matrix printer of claim 31, wherein the unitary ink-supply tank is formed with three ink-supply sections, the ink capacity of said further separate ink-supply tank being in excess of one-third times the capacity of said the reed ink-supply sections.
Claim 49
Dependent Claim
161 words
A dot matrix printer, comprising: printing means for applying ink in a dot matrix to effect printing; and an ink supply means for delivering ink to said printing means comprising: a unitary ink-supply tank formed with a plurality of ink-supply sections; a further separate ink-supply tank; an ink absorbing member formed of a porous material in each of said ink-supply sections and in said further separate ink-supply tank, each said ink absorbing member substantially filling its respective ink-supply section or further separate ink-supply tank; substantially the desired capacity of ink for each of said ink-supply sections and of said further separate ink-supply tank being carried by the respective ink absorbing members thereof, at least tow of said ink-supply sections carrying ink of different colors, said further separate ink-supply tank carrying blank ink; and separate means projecting into each of said ink-supply tank sections and into said further separate ink-supply tank for receiving and transmitting ink from the associated ink absorbing member.
Claim 50
Dependent Claim
161 words
A dot matrix printer, comprising: printing means for applying ink in a dot matrix to effect printing; and an ink supply means for delivering ink to said printing means comprising: a unitary ink-supply tank formed with a plurality of ink-supply sections; a further separate ink-supply tank; an ink absorbing member formed of a porous material in each of said ink-supply sections and in said further separate ink-supply tank, each said ink absorbing member substantially filling its respective ink-supply section or further separate ink-supply tank; substantially the desired capacity of ink for each of said ink-supply sections and of said further separate ink-supply tank being carried by the respective ink absorbing members thereof, at least tow of said ink-supply sections carrying ink of different colors, said further separate ink-supply tank carrying blank ink; and separate means projecting into each of said ink-supply tank sections and into said further separate ink-supply tank for receiving and transmitting ink from the associated ink absorbing member.
Claim 51
Dependent Claim
24 words
The dot matrix printer of claim 46, wherein said ink-supply sections comprise three ink tank sections for respectively storing yellow, magenta and cyan inks.
Claim 52
Dependent Claim
64 words
The dot matrix printer of claim 46, said printing means including a dot matrix printer head carrying said ink supply means, said dot matrix printer head being adapted to be scanned inn a printing direction, said ink-supply sections being positioned with the ink-supply section containing said yellow ink being positioned first in a direction of scanning of the dot matrix printer head during printing.
Claim 53
Dependent Claim
27 words
The dot matrix printer of claim 47, wherein each of said ink absorbing members is compressed in the vicinity of the associated ink receiving and transmitting means.
Claim 54
Dependent Claim
71 words
The dot matrix printer of claim 49, wherein each of said ink absorbing members comprises at least two separate porous members disposed as stacked layers, one of said porous members which is closer to the associated ink receiving and transmitting means being made of a porous material having a smaller average pore size than the porous material of the other porous member more remote from said ink receiving and transmitting means.
Claim 55
Dependent Claim
51 words
The dot matrix printer of claim 49, wherein said ink-supply sections and further ink-supply tank each includes a wall facing the associated receiving and transmitting means, said each of said ink absorbing members being compressingly contained in the space intermediate the associated wall and the associated ink receiving and transmitting means.
Claim 56
Dependent Claim
71 words
The dot matrix printer of claim 51, wherein said wall of each of said ink-supply sections and further ink-supply tank facing the associated ink receiving and transmitting means is part of a cover means bearing on the respective ink absorbing member when assembled to said first mentioned or further ink-supply tanks to at least in part apply a compressive force to effect compression of said each of said ink absorbing members.
Claim 57
Dependent Claim
39 words
The dot matrix printer of claim 51, said ink-supply sections and further ink-supply tank each including an inner wall surface having projections to provide a space between said each of said ink absorbing members and the associated wall surface.
Claim 58
Dependent Claim
29 words
The dot matrix printer of claim 53, and including means for providing ambient air to the space between said each of said ink absorbing members and the wall surface.
Claim 59
Dependent Claim
90 words
The dot matrix printer of claim 54, wherein the wall of each of said ink-supply sections and further ink-supply tank facing the associated ink receiving and transmitting means is a part of a cover means each bearing on an associated ink absorbing member when assembled to said ink-supply tank and further ink-supply tank to at least in part apply a compressive force to effect compression of said each of said ink absorbing members, at least a portion of said projections extending from the inner wall surface of said cover means.
Claim 60
Dependent Claim
38 words
The dot matrix printer of claim 52, wherein said projections are formed in an inner wall surface of said wall of each of said ink-supply sections and further ink-supply tank facing the associated ink receiving and transmitting means.
Claim 61
Dependent Claim
29 words
The dot matrix printer of claim 56, and including means for providing ambient air to the space between said each of said ink absorbing members and associated wall surface.
Claim 62
Dependent Claim
33 words
The dot matrix printer of claim 52, said ink being impregnated in each ink-absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 63
Dependent Claim
33 words
The dot matrix printer of claim 52, said ink being impregnated in each ink-absorbing member under a pressure sufficiently low to substantially eliminate air bubbles in the each of said ink absorbing members.
Claim 64
Dependent Claim
40 words
The dot matrix printer of claim 46, wherein the unitary ink-supply tank is formed with three ink-supply sections, the ink capacity of said further separate ink-supply tank being in excess of one-third times the capacity of said three ink-supply sections.
Claim 65
Independent Claim
129 words
The method of applying ink to a dot matrix printer, comprising: storing ink of at least two different colors not including black in different ink-supply sections of a unitary ink-supply tank having a plurality of ink-supply sections, each of said ink-supply sections having an ink-supply delivery port; storing black ink in a further separate ink-supply tank formed with an ink-supply delivery port; and providing an ink absorbing member formed of a porous material in each of the ink-supply sections and in the further separate ink-supply tank so that substantially the desired capacity of ink for each of said ink-supply sections and further separate ink-supply tank is carried by the associated ink absorbing member, each said ink absorbing member substantially filling its respective ink-supply section or further separate ink-supply tank.
Claim 66
Independent Claim
129 words
The method of applying ink to a dot matrix printer, comprising: storing ink of at least two different colors not including black in different ink-supply sections of a unitary ink-supply tank having a plurality of ink-supply sections, each of said ink-supply sections having an ink-supply delivery port; storing black ink in a further separate ink-supply tank formed with an ink-supply delivery port; and providing an ink absorbing member formed of a porous material in each of the ink-supply sections and in the further separate ink-supply tank so that substantially the desired capacity of ink for each of said ink-supply sections and further separate ink-supply tank is carried by the associated ink absorbing member, each said ink absorbing member substantially filling its respective ink-supply section or further separate ink-supply tank.
Claim 67
Dependent Claim
21 words
The method of claim 61, wherein the color of the ink provided in the ink-supply sections comprises yellow, magenta and cyan.
Claim 68
Dependent Claim
43 words
The method of claim 62, wherein the unitary ink-supply tank is formed with three ink-supply sections, the quantity of ink stored in the further separate ink-supply tank being in excess of one-third times the quantity of ink stored in the three ink-supply sections.
Claim 69
Independent Claim
131 words
The method of applying ink to a dot matrix printer comprising: storing ink of at least two different colors not including black in different ink-supply sections of a unitary ink-supply tank having a plurality of ink-supply sections, storing black ink in a further separate ink-supply tank; storing black ink in a further separate ink-supply tank, each of said ink-supply sections and said further separate ink-supply tank having means for receiving and transmitting ink from the associated ink absorbing member; and providing an ink absorbing member formed of a porous material in each of the ink-supply sections and in the further separate ink-supply tank so that substantially the desired capacity of ink for each of said ink-supply sections and said further separate ink-supply tank is carried by the corresponding ink absorbing members.
Claim 70
Independent Claim
131 words
The method of applying ink to a dot matrix printer comprising: storing ink of at least two different colors not including black in different ink-supply sections of a unitary ink-supply tank having a plurality of ink-supply sections, storing black ink in a further separate ink-supply tank; storing black ink in a further separate ink-supply tank, each of said ink-supply sections and said further separate ink-supply tank having means for receiving and transmitting ink from the associated ink absorbing member; and providing an ink absorbing member formed of a porous material in each of the ink-supply sections and in the further separate ink-supply tank so that substantially the desired capacity of ink for each of said ink-supply sections and said further separate ink-supply tank is carried by the corresponding ink absorbing members.
Claim 71
Dependent Claim
20 words
The method of claim 64, wherein the color of the ink provided in the ink-supply comprises yellow, magenta and cyan.
Claim 72
Dependent Claim
43 words
The method of claim 64, wherein the unitary ink-supply tank is formed with three ink-supply sections, the quantity of ink stored in the further separate ink-supply tank being in excess of one-third times the quantity of ink stored in the three ink-supply sections.
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USPTO Annuity & Maintenance Windows
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| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |