US5763129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing gloss and transparency clarity of fused toner images
Assignee: Eastman Kodak Co
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Filing: 1996-08-01
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Granted: 1998-06-09
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Expires: 2016-08-01
Abstract
Abstract This invention provides a method of increasing the gloss value of a fused toner image comprising the steps of: a) transferring toner to a receiver to make a toner bearing receiver; and b) passing the toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; wherein said heated fuser system consists of a fuser roller and a pressure roller; said fuser roller has a surface roughness of less than or equal to 1.25 mu m Ra; said pressure roller comprises a metal core, and a fluoropolymer resin layer, said fluoropolymer resin layer has a thermal conductivity greater than 0.29 W/m DEG C. and a surface energy less than or equal to 20 dyne/cm.
Inventors
- 👤 Jiann H. Chen
- 👤 Borden H. Mills, III
- 👤 Robert G. Scheidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:38
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6588; G03G15/6591; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/206; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00493; G03G2215/00497
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
116 words
In a method fusing a toner image comprising the steps of: a) applying toner to a receiver to make a toner bearing receiver; and b) passing said toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; said heated fuser system consisting of a fuser roller and a pressure member; the improvement wherein said fuser roller has a surface roughness of less than or equal to 1.25 μm Ra; said pressure member comprises a support, and a fluoropolymer resin layer, said fluoropolymer resin layer having conductive fillers, a thermal conductivity greater than or equal to 0.29 W/m° C. and a surface energy less than or equal to 20 dyne/cm.
Claim 2
Dependent Claim
116 words
In a method fusing a toner image comprising the steps of: a) applying toner to a receiver to make a toner bearing receiver; and b) passing said toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; said heated fuser system consisting of a fuser roller and a pressure member; the improvement wherein said fuser roller has a surface roughness of less than or equal to 1.25 μm Ra; said pressure member comprises a support, and a fluoropolymer resin layer, said fluoropolymer resin layer having conductive fillers, a thermal conductivity greater than or equal to 0.29 W/m° C. and a surface energy less than or equal to 20 dyne/cm.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein said fuser roller (member) is heated.
Claim 4
Dependent Claim
28 words
The method of claim 1, wherein said fused toner image has an overall Gardner gloss value at an 85° angle (G85) of greater than or equal to 13.
Claim 5
Dependent Claim
31 words
The method of claim 1, wherein said fused toner image has an overall Gardner gloss value at an 85° angle (G85) from the receiver of greater than or equal to 25.
Claim 6
Dependent Claim
31 words
The method of claim 1, wherein said fused toner image has an overall Gardner gloss value at a 20° angle (G20) from the receiver of greater than or equal to 1.7.
Claim 7
Dependent Claim
31 words
The method of claim 1, wherein said fused toner image has an overall Gardner gross value at a 20° angle (G20) from the receiver of greater than or equal to 3.0.
Claim 8
Dependent Claim
21 words
The method of claim 1, wherein said fused toner image has an overall transparency clarity greater than or equal to 0.865.
Claim 9
Dependent Claim
21 words
The method of claim 1, wherein said fused toner image has an overall transparency clarity greater than or equal to 0.875.
Claim 10
Dependent Claim
21 words
The method of claim 1 wherein said fuser roller has a surface roughness less than or equal to 1 μm Ra.
Claim 11
Independent Claim
120 words
A method of increasing the gloss value of a fused toner image comprising the steps of: a) applying toner to a receiver to make a toner bearing receiver; and b) passing the toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; wherein said heated fuser system consists of a fuser roller and a pressure roller; said fuser roller has a surface roughness of less than or equal to 0.75 μm Ra; said pressure roller comprises a metal core, and a fluoropolymer resin layer, said fluoropolymer resin layer has conductive fillers, a thermal conductivity greater than or equal to 0.35 W/m° C. and a surface energy less than or equal to 20 dyne/cm.
Claim 12
Independent Claim
120 words
A method of increasing the gloss value of a fused toner image comprising the steps of: a) applying toner to a receiver to make a toner bearing receiver; and b) passing the toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; wherein said heated fuser system consists of a fuser roller and a pressure roller; said fuser roller has a surface roughness of less than or equal to 0.75 μm Ra; said pressure roller comprises a metal core, and a fluoropolymer resin layer, said fluoropolymer resin layer has conductive fillers, a thermal conductivity greater than or equal to 0.35 W/m° C. and a surface energy less than or equal to 20 dyne/cm.
Claim 13
Dependent Claim
19 words
The method of claim 11 wherein said pressure roller has a surface roughness between 0.5 and 2.5 μm Ra.
Claim 14
Dependent Claim
18 words
The method of claim 11 wherein said fluoropolymer resin layer of said pressure roller comprises polyfluoroalkylvinylether and filler.
Claim 15
Dependent Claim
19 words
The method of claim 10 wherein said pressure roller has a surface roughness between 0.75 and 1.25 μm Ra.
Claim 16
Dependent Claim
19 words
The method of claim 10 wherein said fluoropolymer resin layer of said pressure roller further comprises polytetrafluoroethylene and filler.
Claim 17
Dependent Claim
18 words
The method of claim 10 wherein said fluoropolymer resin layer of said pressure roller comprises polyfluoroethylenepropylene and filler.
Claim 18
Dependent Claim
22 words
The method of claim 10 wherein said fluoropolymer resin layer of said pressure roller comprises a mixture of polytetrafluoroethylene, polyfluoroalkylvinylether, and filler.
Claim 19
Independent Claim
28 words
The method of claims 1 or 16 wherein said filler is selected from the group consisting of aluminum, aluminum oxide and a mixture of aluminum and aluminum oxide.
Claim 20
Dependent Claim
14 words
The method of claim 17, wherein said core of said pressure roller is aluminum.
Claim 21
Dependent Claim
14 words
The method of claim 18, wherein said fuser roller comprises a polydimethylsiloxane top coat.
Claim 22
Dependent Claim
117 words
In a method fusing a toner image comprising the steps of: a) applying toner to a receiver to make a toner bearing receiver; and b) passing said toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; said heated fuser system consisting of a fuser roller and a pressure roller; the improvement wherein said fuser roller has a surface roughness of less than or equal to 1.25 μm Ra; said pressure roller comprises a support, and a fluoropolymer resin layer, said fluoropolymer resin layer comprising conductive filler and having a thermal conductivity greater than or equal to 0.29 W/m°C. and a surface energy less than or equal to 20 dyne/cm.
Claim 23
Dependent Claim
117 words
In a method fusing a toner image comprising the steps of: a) applying toner to a receiver to make a toner bearing receiver; and b) passing said toner bearing receiver through a heated fuser system to create a fused toner image on a receiver; said heated fuser system consisting of a fuser roller and a pressure roller; the improvement wherein said fuser roller has a surface roughness of less than or equal to 1.25 μm Ra; said pressure roller comprises a support, and a fluoropolymer resin layer, said fluoropolymer resin layer comprising conductive filler and having a thermal conductivity greater than or equal to 0.29 W/m°C. and a surface energy less than or equal to 20 dyne/cm.
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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) | 2001-06-08 | 2001-12-08 | 2002-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-08 | 2005-12-08 | 2006-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-08 | 2009-12-08 | 2010-06-09 | $7700.00 | Window Closed / Lapsed |