US5708950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfuser
Assignee: Xerox Corp
•
Filing: 1995-12-06
•
Granted: 1998-01-13
•
Expires: 2015-12-06
Abstract
Abstract Printing machines which incorporate a transfusing station having a transfusing member with a resistive heater layer, a substrate, and a release layer. The transfusing station is entrained between at least two electrically conductive contact members, such as rollers, which electrically contact the heater layer. An electrical source sends current through the conductive rollers and the heater layer, heating that layer, the substrate, the release layer, and any toner on the release layer. A backup roller adjacent the transfusing member and the conductive rollers induces pressure on marking substrates which pass between the backup roller and the transfusing member. The combination of heat from the heater layer and pressure induced by the backup roller causes any toner image on the transfusing member to fuse onto the marking substrate. The release layer assists in transferring the toner onto the marking substrate.
Inventors
- 👤 Santokh S. Badesha
- 👤 Werner E. Haas
- 👤 Rasin Moser
- 👤 Henry R. Till
- 👤 Anthony M. Wallace
- 👤 William H. Wayman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:44
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1605; G03G15/162; G03G2215/00; G03G2215/16; G03G2215/1676; G03G2215/168; G03G2215/1685
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
35 words
A transfuse member comprised of: a substrate have a first surface and a second surface: a resistive layer disposed on said first surface; and a release layer comprised of polyorganosiloxane disposed on said second surface.
Claim 2
Dependent Claim
35 words
A transfuse member comprised of: a substrate have a first surface and a second surface: a resistive layer disposed on said first surface; and a release layer comprised of polyorganosiloxane disposed on said second surface.
Claim 3
Dependent Claim
16 words
The transfuse member according to claim 1, wherein said resistive layer is comprised of a fluorohydropolymer.
Claim 4
Dependent Claim
16 words
The transfuse member according to claim 1, wherein said resistive layer is comprised of a silicone.
Claim 5
Dependent Claim
18 words
The transfuse member according to claim 1, wherein said resistive layer is comprised of an electrically conductive particle.
Claim 6
Dependent Claim
94 words
A transfuse station comprised of: a transfuse member comprised of a substrate have a first surface and a second surface, a resistive layer disposed on said first surface, and a release layer disposed on said second surface; an electrical source, operatively connected to said resistive layer, for sending electrical current through said resistive layer such that said resistive layer heats said release layer; and a backup roller adjacent said release layer, said backup roller for inducing pressure on a marking substrate when said marking substrate passes between said backup roller and said release layer.
Claim 7
Dependent Claim
94 words
A transfuse station comprised of: a transfuse member comprised of a substrate have a first surface and a second surface, a resistive layer disposed on said first surface, and a release layer disposed on said second surface; an electrical source, operatively connected to said resistive layer, for sending electrical current through said resistive layer such that said resistive layer heats said release layer; and a backup roller adjacent said release layer, said backup roller for inducing pressure on a marking substrate when said marking substrate passes between said backup roller and said release layer.
Claim 8
Dependent Claim
15 words
The transfuse station according to claim 5, wherein said release layer is comprised of polyorganosiloxane.
Claim 9
Dependent Claim
16 words
The transfuse station according to claim 6, wherein said resistive layer is comprised of a fluorohydropolymer.
Claim 10
Dependent Claim
16 words
The transfuse station according to claim 6, wherein said resistive layer is comprised of a silicone.
Claim 11
Dependent Claim
18 words
The transfuse station according to claim 6, wherein said resistive layer is comprised of an electrically conductive material.
Claim 12
Dependent Claim
200 words
A printing machine comprising: a photoreceptor having a photoconductive surface; a charging station for charging said photoconductive surface to a predetermined potential; an exposure station for exposing said photoconductive surface to produce a first electrostatic latent images on said photoconductive surface; a first developing station for depositing developing material on said first electrostatic latent image so as to produce a first toner image on said photoconductive surface; a transfusing member for receiving said first toner image from said photoconductive surface, said transfusing member having a release layer for receiving said first toner image, a substrate for supporting said release layer, and a heating layer comprised of a resistive material; an electrically conductive first contact member contacting said heating layer at a first location; an electrically conductive second contact member contacting said heating layer at a second location; an electrical source for sending electrical current through said first contact member, through said heating layer, and through said second contact member such that said heating layer heats said first toner image; and a backup roller adjacent said transfusing member, said backup roller for inducing pressure on a marking substrate when said marking substrate passes between said backup roller and said transfusing member.
Claim 13
Dependent Claim
200 words
A printing machine comprising: a photoreceptor having a photoconductive surface; a charging station for charging said photoconductive surface to a predetermined potential; an exposure station for exposing said photoconductive surface to produce a first electrostatic latent images on said photoconductive surface; a first developing station for depositing developing material on said first electrostatic latent image so as to produce a first toner image on said photoconductive surface; a transfusing member for receiving said first toner image from said photoconductive surface, said transfusing member having a release layer for receiving said first toner image, a substrate for supporting said release layer, and a heating layer comprised of a resistive material; an electrically conductive first contact member contacting said heating layer at a first location; an electrically conductive second contact member contacting said heating layer at a second location; an electrical source for sending electrical current through said first contact member, through said heating layer, and through said second contact member such that said heating layer heats said first toner image; and a backup roller adjacent said transfusing member, said backup roller for inducing pressure on a marking substrate when said marking substrate passes between said backup roller and said transfusing member.
Claim 14
Dependent Claim
15 words
The printing machine according to claim 10, wherein said release layer is comprised of polyorganosiloxane.
Claim 15
Dependent Claim
16 words
The printing machine according to claim 11, wherein said resistive layer is comprised of a fluorohydropolymer.
Claim 16
Dependent Claim
16 words
The printing machine according to claim 11, wherein said heater layer is comprised of a silicone.
Claim 17
Dependent Claim
20 words
The printing machine transfuse member according to claim 11, wherein said heater layer is comprised of an electrically conductive material.
Claim 18
Dependent Claim
16 words
The printing machine according to claim 14, wherein said heater layer is comprised of carbon black.
Claim 19
Dependent Claim
16 words
The printing machine according to claim 11, wherein said developing material is a liquid developing material.
Claim 20
Dependent Claim
16 words
The printing machine according to claim 11, wherein said developing material is a dry developing material.
Claim 21
Dependent Claim
89 words
The printing machine according to claim 11, further including: an exposure station for exposing said photoconductive surface to produce a second electrostatic latent images on said photoconductive surface; and a second developing station for depositing developing material on said second electrostatic latent image so as to produce a second toner image on said photoconductive surface; wherein said second toner image is transferred onto said transfusing member in superimposed registration with said first toner image, and wherein both said first and second toner images are fused onto a marking substrate.
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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) | 2001-01-12 | 2001-07-14 | 2002-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-12 | 2005-07-14 | 2006-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-12 | 2009-07-14 | 2010-01-13 | $7700.00 | Window Closed / Lapsed |