Patent US5625397A successfully refreshed from Google Patents.
US5625397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dot on dot ink jet printing using inks of differing densities
Assignee: Eastman Kodak Co
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Filing: 1994-11-23
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Granted: 1997-04-29
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Expires: 2014-11-23
Abstract
Abstract An ink jet printer comprising a plurality of ink jets arranged for dot-on-dot continuous ink jet printing, at least two of said plurality of ink jets being supplied with ink of the same dye and different densities. A printed article and a method of printing are also disclosed.
Inventors
- 👤 Donald R. Allred
- 👤 John L. Ingraham
- 👤 Foster M. Fargo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:50
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/205; B41J2/2056
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
101 words
An ink jet printer comprising: a plurality of ink jets arranged for dot-on-dot continuous ink jet printing; and an ink supply assembly associated with said plurality of ink jets and being operative to supply at least two of said plurality of ink jets with inks of the same dye and different dye concentrations, said at least two of said plurality of ink jets being operative to produce multi-pixel ink dots including at least one pixel at which ink having a relatively higher dye concentration is printed over only part of a region printed with ink having a relatively lower dye concentration.
Claim 2
Dependent Claim
101 words
An ink jet printer comprising: a plurality of ink jets arranged for dot-on-dot continuous ink jet printing; and an ink supply assembly associated with said plurality of ink jets and being operative to supply at least two of said plurality of ink jets with inks of the same dye and different dye concentrations, said at least two of said plurality of ink jets being operative to produce multi-pixel ink dots including at least one pixel at which ink having a relatively higher dye concentration is printed over only part of a region printed with ink having a relatively lower dye concentration.
Claim 3
Dependent Claim
27 words
An ink jet printer according to claim 1 and wherein the relatively higher density dye concentration is an integer multiple of the relatively lower density dye concentration.
Claim 4
Dependent Claim
23 words
An ink jet printer according to claim 2 and wherein the inks have concentration ratios in a range extending between 20:1 and 2:1.
Claim 5
Dependent Claim
24 words
An ink jet printer according to claim 2 and wherein the inks have dye concentration ratios in a range extending between 6:1 and 3:1.
Claim 6
Dependent Claim
14 words
An ink jet printer according to claim 1 and providing black and white printing.
Claim 7
Dependent Claim
12 words
An ink jet printer according to claim 1 and providing color printing.
Claim 8
Dependent Claim
53 words
An ink jet printed article including sub-dot pixel printed areas wherein inks of the same dye and differing dye concentrations are printed one over the other, and at which ink having a relatively higher dye concentration is printed over only part of a region printed with ink having a relatively lower dye concentration.
Claim 9
Dependent Claim
53 words
An ink jet printed article including sub-dot pixel printed areas wherein inks of the same dye and differing dye concentrations are printed one over the other, and at which ink having a relatively higher dye concentration is printed over only part of a region printed with ink having a relatively lower dye concentration.
Claim 10
Dependent Claim
28 words
An ink jet printed article according to claim 7 and wherein the relatively higher density dye concentration is an integer multiple of the relatively lower density dye concentration.
Claim 11
Dependent Claim
25 words
An ink jet printed article according to claim 7 and wherein the inks have dye concentration ratios in a range extending between 20:1 and 2:1.
Claim 12
Dependent Claim
25 words
An ink jet printed article according to claim 7 and wherein the inks have dye concentration ratios in a range extending between 6:1 and 3:1.
Claim 13
Dependent Claim
15 words
An ink jet printed article according to claim 7 and providing black and white printing.
Claim 14
Dependent Claim
13 words
An ink jet printed article according to claim 7 and providing color printing.
Claim 15
Independent Claim
89 words
A method of continuous ink jet printing onto a substrate including: providing an ink jet printer comprising a plurality of ink jets arranged for dot-on-dot continuous ink jet printing; providing at least two inks from the same dye and having different dye concentrations to at least two of said plurality of ink jets; and printing multi-pixel ink dots including at least one pixel at which ink having a relatively higher dye concentration is printed over only part of a region printed with ink having a relatively lower dye concentration.
Claim 16
Independent Claim
89 words
A method of continuous ink jet printing onto a substrate including: providing an ink jet printer comprising a plurality of ink jets arranged for dot-on-dot continuous ink jet printing; providing at least two inks from the same dye and having different dye concentrations to at least two of said plurality of ink jets; and printing multi-pixel ink dots including at least one pixel at which ink having a relatively higher dye concentration is printed over only part of a region printed with ink having a relatively lower dye concentration.
Claim 17
Dependent Claim
22 words
A method according to claim 13 and wherein the inks have dye concentration ratios in a range extending between 20:1 and 2:1.
Claim 18
Dependent Claim
22 words
A method according to claim 13 and wherein the inks have dye concentration ratios in a range extending between 6:1 and 3:1.
Claim 19
Dependent Claim
12 words
A method according to claim 13 and providing black and white printing.
Claim 20
Dependent Claim
10 words
A method according to claim 13 and providing color printing.
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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) | 2000-04-28 | 2000-10-28 | 2001-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-28 | 2004-10-28 | 2005-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-28 | 2008-10-28 | 2009-04-29 | $7700.00 | Window Closed / Lapsed |