US6290762B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of selecting an ink set of an ink jet printer
Assignee: Hewlett Packard Development Co LP
•
Filing: 1997-11-26
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Granted: 2001-09-18
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Expires: 2017-11-26
Abstract
Abstract A method of printing an image on a substrate with an ink jet printer, the method including the step of ejecting a plurality of discrete portions of ink from the ink jet printer toward the substrate, the ink including at least three different inks with each ink of each different pair of inks containing either different dyes or different concentrations of the same dye, and the step of sequentially forming a plurality of layers of ink dots on the substrate using the discrete portions of ink, with adjacent layers having overlapping ink dots formed of different inks, the plurality of layers of ink dots constituting the image, and the image fully covering all portions of the substrate beneath the image.
Inventors
- 👤 Hamdy A. Elwakil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:40
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
99 words
An ink jet printer ink set, the ink set comprising: at least one magenta ink, each of said at least one magenta ink comprising a magenta dye and a vehicle; at least one cyan ink, each of said at least one cyan ink comprising a cyan dye and the vehicle; at least one yellow ink each of said at least one yellow ink comprising, a yellow dye and the vehicle; and wherein each ink of the ink set has a surface tension of between about 30 dynes per centimeter and about 60 dynes per centimeter at 25 degrees Celsius.
Claim 2
Dependent Claim
99 words
An ink jet printer ink set, the ink set comprising: at least one magenta ink, each of said at least one magenta ink comprising a magenta dye and a vehicle; at least one cyan ink, each of said at least one cyan ink comprising a cyan dye and the vehicle; at least one yellow ink each of said at least one yellow ink comprising, a yellow dye and the vehicle; and wherein each ink of the ink set has a surface tension of between about 30 dynes per centimeter and about 60 dynes per centimeter at 25 degrees Celsius.
Claim 3
Dependent Claim
38 words
The ink jet printer ink set of claim 1 wherein the at least one magenta ink comprises: a set of three magenta inks each of said set of three magenta inks having differing concentrations of a magenta dye.
Claim 4
Dependent Claim
38 words
The ink jet printer ink set of claim 1 wherein the at least one cyan ink comprises: a set of three cyan inks each of said set of three cyan inks having differing concentrations of a cyan dye.
Claim 5
Dependent Claim
20 words
The ink jet printer ink set of claim 1 wherein the ink set further comprises at least one black ink.
Claim 6
Dependent Claim
32 words
The ink jet printer ink set of claim 1 wherein each of said inks of said ink set has a Brookfield viscosity of less than about 1.5 centipoise at 25 decrees Celsius.
Claim 7
Dependent Claim
32 words
The ink jet printer ink set of claim 5 wherein the surface tension of each of said inks of said ink set is about 50 dynes per centimeter at 25 degrees Celsius.
Claim 8
Dependent Claim
31 words
The ink jet printer ink set of claim 1 wherein the ink jet printer ink set consists of three magenta inks, three cyan inks, a yellow ink, and a black ink.
Claim 9
Dependent Claim
29 words
The ink jet printer ink set of claim 4 wherein each of said inks of said ink set has a Brookfield viscosity of about 2 centipoise at 25° C.
Claim 10
Dependent Claim
59 words
The ink jet printer ink set of claim 1 wherein each of said inks of said ink set is disposed in an independent on-board ink reservoir of a disposable ink jet cartridge and each said ink jet cartridge is electrically and physically coupled to a carriage assembly of a color printer having at least four ink jet cartridge receptacles.
Claim 11
Dependent Claim
29 words
The ink jet printer ink set of claim 1 wherein each of said inks of said ink set has a Brookfield viscosity of about 4 centipoise at 25° C.
Claim 12
Dependent Claim
26 words
The ink jet printer ink set of claim 4 wherein each of said inks of said ink set is fluidly coupled to a remote ink reservoir.
Claim 13
Dependent Claim
25 words
The ink jet printer ink set of claim 11 wherein each of the remote ink reservoirs contains at least two hundred fifty milliliters of ink.
Claim 14
Dependent Claim
30 words
The ink jet printer ink set of claim 1 wherein each magenta ink and each cyan ink has a conductivity of less than about 1.6 m mhos at 25° C.
Claim 15
Dependent Claim
48 words
An ink jet printer ink set, the ink set comprising: at least one magenta ink; at least one cyan ink; at least one yellow ink; and wherein each ink of the ink set has a surface tension of at least about 65 dynes per centimeter at 25° C.
Claim 16
Dependent Claim
48 words
An ink jet printer ink set, the ink set comprising: at least one magenta ink; at least one cyan ink; at least one yellow ink; and wherein each ink of the ink set has a surface tension of at least about 65 dynes per centimeter at 25° C.
Claim 17
Dependent Claim
32 words
The ink jet printer ink set of claim 14 wherein the at least one magenta ink comprises: three different magenta inks, each of the magenta inks having different concentrations of magenta dye.
Claim 18
Dependent Claim
32 words
The ink jet printer ink set of claim 14 wherein the at least one cyan ink comprises: three different cyan inks, each of the cyan inks having different concentrations of cyan dye.
Claim 19
Dependent Claim
20 words
The ink jet printer ink set of claim 14 wherein the ink set further comprises at least one black ink.
Claim 20
Dependent Claim
25 words
The ink jet printer ink set of claim 14 wherein each ink has a Brookfield viscosity of less than about 1.45 centipoise at 25° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-17 | 2005-03-19 | 2005-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-17 | 2009-03-19 | 2009-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-17 | 2013-03-19 | 2013-09-18 | $7700.00 | Window Closed / Lapsed |