US3847642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for transferring electrostatographically formed images
Assignee: Xerox Corp
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Filing: 1972-01-20
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Granted: 1974-11-12
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Expires: 1992-01-20
Abstract
Abstract A method and apparatus for transferring and fixing images formed by electrostatographic imaging techniques is disclosed. Accordingly, a thin film of a viscous material is applied to an imaging member prior to, or after, forming an electrostatic latent image thereon. The latent image is developed with electroscopic marking material and the thus developed image is transferred by contact to a recording medium. A portion of the viscous material is also transferred to the recording medium with the image and is subsequently solidified thereby fixing the image to the recording medium.
Inventors
- 👤 W Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:22
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/169; G03G15/20
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
189 words
AN ELECTROSTATOGRAPHIC IMAGING PROCESS COMPRISING PROVIDING AN IMAGING MEMBER CARRYING AN ELECTROSTATIC LATENT IMAGE, SAID IMAGING MEMBER COMPRISING A LAYER OF AN ORGANIC FILM FORMING MATERIAL HAVING A THICKNESS OF FROM ABOUT 2 MICRONS TO ABOUT 25 MICRONS OVERLYING AN ELECTROSTATOGRPHIC IMAGING SURFACE, SAID ORGANIC MATERIAL HAVING A RESISTIVITY ABOVE ABOUT 10**10 OHM-CM, A MELTING POINT BETWEEN ABOUT 25*C AND ABOUT 95*C AND A VISICOSITY AT ITS MELTING POINT OF FROM ABOUT 10 TO ABOUT 200 CENTIPOISES; DEVELOPING SAID ELECTROSTATIC LATENT IMAGE TO FORM A VISIBLE IMAGE; AND TRANSFERRING SAID DEVELOPED IMAGE TO A RECEIVING MEMBER BY BRINGING SAID RECEIVING MEMBER INTO CONTACT WITH THE SURFACE OF SAID IMAGING MEMBER CARRYING SAID DEVELOPED IMAGE AND SEPARATING SAID RECEIVING MEMBER FROM SAID IMAGING MEMBER, WHEREIN SAID ORGANIC MATERIAL IS IN A LIQUEFIED STATE DURING SAID STEP OF TRANSFERRING AND SAID RECEIVING MEMBER COMPRISES A MATERIAL CAPABLE OF BEING WET BY SAID LIQUEFIED ORGANIC MATERIAL, WHEREIN SAID ORGANIC MATERIAL LAYER SPLITS DURING SAID STEP OF TRANSFERRING WITH A PORTION OF SAID LAYER REMAINING ON SAID IMAGING MEMBER AND A PORTION OF SAID LAYER ACCOMPANYING SAID DEVELOPED IMAGE TO SAID RECEIVING MEMBER.
Claim 2
Dependent Claim
189 words
AN ELECTROSTATOGRAPHIC IMAGING PROCESS COMPRISING PROVIDING AN IMAGING MEMBER CARRYING AN ELECTROSTATIC LATENT IMAGE, SAID IMAGING MEMBER COMPRISING A LAYER OF AN ORGANIC FILM FORMING MATERIAL HAVING A THICKNESS OF FROM ABOUT 2 MICRONS TO ABOUT 25 MICRONS OVERLYING AN ELECTROSTATOGRPHIC IMAGING SURFACE, SAID ORGANIC MATERIAL HAVING A RESISTIVITY ABOVE ABOUT 10**10 OHM-CM, A MELTING POINT BETWEEN ABOUT 25*C AND ABOUT 95*C AND A VISICOSITY AT ITS MELTING POINT OF FROM ABOUT 10 TO ABOUT 200 CENTIPOISES; DEVELOPING SAID ELECTROSTATIC LATENT IMAGE TO FORM A VISIBLE IMAGE; AND TRANSFERRING SAID DEVELOPED IMAGE TO A RECEIVING MEMBER BY BRINGING SAID RECEIVING MEMBER INTO CONTACT WITH THE SURFACE OF SAID IMAGING MEMBER CARRYING SAID DEVELOPED IMAGE AND SEPARATING SAID RECEIVING MEMBER FROM SAID IMAGING MEMBER, WHEREIN SAID ORGANIC MATERIAL IS IN A LIQUEFIED STATE DURING SAID STEP OF TRANSFERRING AND SAID RECEIVING MEMBER COMPRISES A MATERIAL CAPABLE OF BEING WET BY SAID LIQUEFIED ORGANIC MATERIAL, WHEREIN SAID ORGANIC MATERIAL LAYER SPLITS DURING SAID STEP OF TRANSFERRING WITH A PORTION OF SAID LAYER REMAINING ON SAID IMAGING MEMBER AND A PORTION OF SAID LAYER ACCOMPANYING SAID DEVELOPED IMAGE TO SAID RECEIVING MEMBER.
Claim 3
Dependent Claim
20 words
The process as defined in claim 1 wherein said organic film forming material is coated on said electrostatographic imaging surface.
Claim 4
Dependent Claim
27 words
The process as defined in claim 2 wherein said latent image is formed on said electrostatographic imaging surface prior to contact with said organic film forming material.
Claim 5
Dependent Claim
26 words
The process as defined in claim 3 wherein the organic film forming material is in the liquid phase during application thereof to said electrostatographic imaging surface.
Claim 6
Dependent Claim
26 words
The process as defined in claim 3 wherein the organic film forming material is in the solid phase during application thereof to said electrostatographic imaging surface.
Claim 7
Dependent Claim
17 words
The process as defined in claim 3 wherein the latent image is developed with a liquid developer.
Claim 8
Dependent Claim
42 words
The process as defined in claim 3 wherein said organic film forming material is in the solid state during the step of developing and said step of developing is carried out with a liquid developer whose carrier liquid softens said organic material.
Claim 9
Dependent Claim
35 words
The process as defined in claim 3 and further including performing the steps of forming an electrostatic latent image on said member, applying additional organic film forming material, developing and transferring at least one time.
Claim 10
Dependent Claim
31 words
The process as defined in claim 4 wherein the organic film forming material is in the liquid state throughout the process and the latent image is developed with a liquid developer.
Claim 11
Dependent Claim
32 words
The process as defined in claim 5 wherein the latent image is developed with a particulate developer and said organic film forming material is liquefied prior to transfer of the developed image.
Claim 12
Dependent Claim
27 words
The process as defined in claim 2 wherein the organic film forming material is applied to said electrostatographic imaging surface prior to formation of the latent image.
Claim 13
Dependent Claim
42 words
The process as defined in claim 11 wherein said organic film forming material is in the solid state during the step of developing and said step of developing is carried out with a liquid developer whose carrier liquid softens said organic material.
Claim 14
Dependent Claim
35 words
The process as defined in claim 11 and further including performing the steps of applying additional film forming material, forming an electrostatic latent image on said imaging member, developing and transferring at least one time.
Claim 15
Dependent Claim
26 words
The process as defined in claim 11 wherein the organic film forming material is in the solid phase during application thereof to said electrostatographic imaging surface.
Claim 16
Dependent Claim
26 words
The process as defined in claim 11 wherein the organic film forming material is in the liquid phase during application thereof to said electrostatographic imaging surface.
Claim 17
Dependent Claim
31 words
The process as defined in claim 15 wherein the organic film forming material is in the liquid state throughout the process and the latent image is developed with a liquid developer.
Claim 18
Dependent Claim
32 words
The process as defined in claim 14 wherein the latent image is developed with a particulate developer and said organic film forming material is liquefied prior to transfer of the developed image.
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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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |