US3975739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Migration imaging system using shaped electrode
Assignee: Xerox Corp
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Filing: 1975-04-03
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Granted: 1976-08-17
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Expires: 1995-04-03
Abstract
Abstract A migration imaging system wherein migration imaging members typically comprising a substrate, a layer of softenable material, and migration marking material, additionally comprises an overlayer of electrically conductive material which is electrically connected to electrically charge the imaging member.
Inventors
- 👤 William L. Goffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/10; G03G13/00; G03G13/06; G03G5/00; G03G5/02; G03G5/04; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 60
Claim 1
Independent Claim
163 words
An imaging process comprising: providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer, a fracturable layer of migration marking material contiguous the surface of and contacting the softenable layer spaced apart from the substrate, said softenable layer capable of having its resistance to migration of migration marking material decreased sufficiently to allow migration of migration marking material in depth in said softenable material, and an imagewise-shaped electrically conductive member to the surface of said softenable layer spaced apart from the substrate; and then electrically latently imaging said imaging member by electrically connecting said imagewise-shaped electrically conductive member to a first electrical potential and contacting the substrate to ground or to an electrical potential different from the first electrical potential, and developing said imaging member by decreasing the resistance to migration of migration marking material in depth in said softenable layer at least sufficient to allow imagewise migration of migration marking material at least in depth in said softenable layer.
Claim 2
Dependent Claim
163 words
An imaging process comprising: providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer, a fracturable layer of migration marking material contiguous the surface of and contacting the softenable layer spaced apart from the substrate, said softenable layer capable of having its resistance to migration of migration marking material decreased sufficiently to allow migration of migration marking material in depth in said softenable material, and an imagewise-shaped electrically conductive member to the surface of said softenable layer spaced apart from the substrate; and then electrically latently imaging said imaging member by electrically connecting said imagewise-shaped electrically conductive member to a first electrical potential and contacting the substrate to ground or to an electrical potential different from the first electrical potential, and developing said imaging member by decreasing the resistance to migration of migration marking material in depth in said softenable layer at least sufficient to allow imagewise migration of migration marking material at least in depth in said softenable layer.
Claim 3
Dependent Claim
136 words
An imaging process comprising: providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer containing migration marking material, said softenable layer capable of having its resistance to migration of migration marking material decreased sufficiently to allow migration of migration marking material in depth in said softenable material, and contacting an imagewise-shaped electrically conductive member to the surface of said softenable layer spaced apart from the substrate; and then electrically latently imaging said imaging member by electrically connecting said imagewise-shaped electrically conductive member to a first electrical potential and contacting the substrate to ground or to an electrical potential different from the first electrical potential, and developing said imaging member by softening said softenable layer at least sufficient to allow imagewise migration of migration marking material at least in depth in said softenable layer.
Claim 4
Dependent Claim
136 words
An imaging process comprising: providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer containing migration marking material, said softenable layer capable of having its resistance to migration of migration marking material decreased sufficiently to allow migration of migration marking material in depth in said softenable material, and contacting an imagewise-shaped electrically conductive member to the surface of said softenable layer spaced apart from the substrate; and then electrically latently imaging said imaging member by electrically connecting said imagewise-shaped electrically conductive member to a first electrical potential and contacting the substrate to ground or to an electrical potential different from the first electrical potential, and developing said imaging member by softening said softenable layer at least sufficient to allow imagewise migration of migration marking material at least in depth in said softenable layer.
Claim 5
Dependent Claim
140 words
An imaging process comprising: providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer containing migration marking material, said softenable layer capable of having its resistance to migration of migration marking material decreased sufficiently to allow migration of migration marking material in depth in said softenable material, and contacting an imagewise-shaped electrically conductive member to the surface of said softenable layer spaced apart from the substrate; and then electrically latently imaging said imaging member by electrically connecting said imagewise-shaped electrically conductive member to a first electrical potential and contacting the substrate to ground or to an electrical potential different from the first electrical potential, and developing said imaging member by removing the softenable material and unmigrated material by contacting the imaging member with a solvent liquid which dissolves said softenable layer and washes away said unmigrated material.
Claim 6
Dependent Claim
140 words
An imaging process comprising: providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer containing migration marking material, said softenable layer capable of having its resistance to migration of migration marking material decreased sufficiently to allow migration of migration marking material in depth in said softenable material, and contacting an imagewise-shaped electrically conductive member to the surface of said softenable layer spaced apart from the substrate; and then electrically latently imaging said imaging member by electrically connecting said imagewise-shaped electrically conductive member to a first electrical potential and contacting the substrate to ground or to an electrical potential different from the first electrical potential, and developing said imaging member by removing the softenable material and unmigrated material by contacting the imaging member with a solvent liquid which dissolves said softenable layer and washes away said unmigrated material.
Claim 7
Dependent Claim
39 words
The process of claim 1 wherein the softenable layer is of a thickness in the range between about 1/2 and about 16 microns, and the migration marking material is of average particle size not greater than about 2 microns.
Claim 8
Dependent Claim
24 words
The process of claim 1 wherein said fracturable layer is of a thickness in the range between about 0.01 microns and about 2 microns.
Claim 9
Dependent Claim
16 words
The process of claim 1 wherein said substrate is sufficiently transparent to transmit activating electromagnetic radiation.
Claim 10
Dependent Claim
18 words
The process of claim 1 wherein said electrically conductive member is sufficiently transparent to transmit activating electromagnetic radiation.
Claim 11
Dependent Claim
11 words
The process of claim 1 wherein said substrate is electrically conductive.
Claim 12
Dependent Claim
47 words
The process of claim 1 wherein said substrate is substantially electrically insulating and said member is electrically latently imaged while said insulating substrate is substantially everywhere contacting a conductive member which is electrically grounded or electrically connected to the opposite pole of the source of electrical potential.
Claim 13
Dependent Claim
22 words
The process of claim 1 wherein the imaging member comprising the substrate, softenable layer and migration marking material comprises electrically photosensitive material.
Claim 14
Dependent Claim
14 words
The process of claim 10 wherein said migration marking material comprises electrically photosensitive material.
Claim 15
Dependent Claim
14 words
The process of claim 10 wherein the softenable layer comprises electrically photosensitive softenable material.
Claim 16
Dependent Claim
49 words
The process of claim 1 wherein the electrically conductive member comprises a composite member comprising an electrically conductive member overlying a layer of material which is more insulating than the electrically conductive portion of the composite member, and said more insulating layer contacts the surface of the softenable layer.
Claim 17
Dependent Claim
20 words
The process of claim 13 wherein said more insulating layer is of a thickness not greater than about 75 microns.
Claim 18
Dependent Claim
14 words
The process of claim 13 wherein said more insulating layer comprises an insulating liquid.
Claim 19
Dependent Claim
29 words
The process of claim 13 wherein the layer of more insulating material contacting the surface of said softenable layer, is in a shape corresponding to the desired image configuration.
Claim 20
Dependent Claim
24 words
The process of claim 1 wherein said softenable layer and said supporting substrate are separate members and are brought into contact with each other.
Claim 21
Dependent Claim
24 words
The process of claim 1 wherein said softenable layer and said conductive member are separate members and are brought into contact with each other.
Claim 22
Dependent Claim
37 words
The process of claim 15 wherein said electrically conductive member is coated with said liquid layer, the surface of the softenable layer is brought into contact with said liquid layer and then separated from said liquid layer.
Claim 23
Dependent Claim
39 words
The process of claim 2 wherein the softenable layer is of a thickness in the range between about 1/2 and about 16 microns, and the migration marking material is of average particle size not greater than about 2 microns.
Claim 24
Dependent Claim
29 words
The process of claim 2 wherein said migration marking material initially comprises a fracturable layer contiguous and contacting the surface of the softenable layer spaced apart from the substrate.
Claim 25
Dependent Claim
24 words
The process of claim 21 wherein said fracturable layer is of a thickness in the range between about 0.01 microns and about 2 microns.
Claim 26
Dependent Claim
17 words
The process of claim 2 wherein the migration marking material is initially dispersed throughout said softenable layer.
Claim 27
Dependent Claim
16 words
The process of claim 2 wherein said substrate is sufficiently transparent to transmit activating electromagnetic radiation.
Claim 28
Dependent Claim
18 words
The process of claim 2 wherein said electrically conductive member is sufficiently transparent to transmit activating electromagnetic radiation.
Claim 29
Dependent Claim
11 words
The process of claim 2 wherein said substrate is electrically conductive.
Claim 30
Dependent Claim
47 words
The process of claim 2 wherein said substrate is substantially electrically insulating and said member is electrically latently imaged while said insulating substrate is substantially everywhere contacting a conductive member which is electrically grounded or electrically connected to the opposite pole of the source of electrical potential.
Claim 31
Dependent Claim
22 words
The process of claim 2 wherein the imaging member comprising the substrate, softenable layer and migration marking material comprises electrically photosensitive material.
Claim 32
Dependent Claim
14 words
The process of claim 28 wherein said migration marking material comprises electrically photosensitive material.
Claim 33
Dependent Claim
14 words
The process of claim 28 wherein the softenable layer comprises electrically photosensitive softenable material.
Claim 34
Dependent Claim
49 words
The process of claim 2 wherein the electrically conductive member comprises a composite member comprising an electrically conductive member overlying a layer of material which is more insulating than the electrically conductive portion of the composite member, and said more insulating layer contacts the surface of the softenable layer.
Claim 35
Dependent Claim
20 words
The process of claim 31 wherein said more insulating layer is of a thickness not greater than about 75 microns.
Claim 36
Dependent Claim
14 words
The process of claim 31 wherein said more insulating layer comprises an insulating liquid.
Claim 37
Dependent Claim
29 words
The process of claim 31 wherein the layer of more insulating material contacting the surface of said softenable layer, is in a shape corresponding to the desired image configuration.
Claim 38
Dependent Claim
22 words
The process of claim 2 wherein said softenable layer and said supporting substrate members and are brought into contact with each other.
Claim 39
Dependent Claim
24 words
The process of claim 2 wherein said softenable layer and said conductive member are separate members and are brought into contact with each other.
Claim 40
Dependent Claim
37 words
The process of claim 33 wherein said electrically conductive member is coated with said liquid layer, the surface of the softenable layer is brought into contact with said liquid layer and then separated from said liquid layers.
Claim 41
Dependent Claim
39 words
The process of claim 3 wherein the softenable layer is of a thickness in the range between about 1/2 and about 16 microns, and the migration marking material is of average particle size not greater than about 2 microns.
Claim 42
Dependent Claim
29 words
The process of claim 3 wherein said migration marking material initially comprises a fracturable layer contiguous and contacting the surface of the softenable layer spaced apart from the substrate.
Claim 43
Dependent Claim
24 words
The process of claim 39 wherein said fracturable layer is of a thickness in the range between about 0.01 microns and about 2 microns.
Claim 44
Dependent Claim
17 words
The process of claim 3 wherein the migration marking material is initially dispersed throughout said softenable layer.
Claim 45
Dependent Claim
16 words
The process of claim 3 wherein said substrate is sufficiently transparent to transmit activating electromagnetic radiation.
Claim 46
Dependent Claim
18 words
The process of claim 3 wherein said electrically conductive member is sufficiently transparent to transmit activating electromagnetic radiation.
Claim 47
Dependent Claim
11 words
The process of claim 3 wherein said substrate is electrically conductive.
Claim 48
Dependent Claim
47 words
The process of claim 3 wherein said substrate is substantially electrically insulating and said member is electrically latently imaged while said insulating substrate is substantially everywhere contacting a conductive member which is electrically grounded or electrically connected to the opposite pole of the source of electrical potential.
Claim 49
Dependent Claim
22 words
The process of claim 42 wherein the imaging member comprising the substrate, softenable layer and migration marking material comprises electrically photosensitive material.
Claim 50
Dependent Claim
14 words
The process of claim 46 wherein said migration marking material comprises electrically photosensitive material.
Claim 51
Dependent Claim
14 words
The process of claim 46 wherein the softenable layer comprises electrically photosensitive softenable material.
Claim 52
Dependent Claim
49 words
The process of claim 3 wherein the electrically conductive member comprises a composite member comprising an electrically conductive member overlying a layer of material which is more insulating than the electrically conductive portion of the composite member, and said more insulating layer contacts the surface of the softenable layer.
Claim 53
Dependent Claim
20 words
The process of claim 49 wherein said more insulating layer is of a thickness not greater than about 75 microns.
Claim 54
Dependent Claim
14 words
The process of claim 49 wherein said more insulating layer comprises an insulating liquid.
Claim 55
Dependent Claim
29 words
The process of claim 49 wherein the layer of more insulating material contacting the surface of said softenable layer, is in a shape corresponding to the desired image configuration.
Claim 56
Dependent Claim
24 words
The process of claim 3 wherein saiid softenable layer and said supporting substrate are separate members and are brought into contact with each other.
Claim 57
Dependent Claim
24 words
The process of claim 3 wherein said softenable layer and said conductive member are separate members and are brought into contact with each other.
Claim 58
Dependent Claim
37 words
The process of claim 51 wherein said electrically conductive member is coated with said liquid layer, the surface of the softenable layer is brought into contact with said liquid layer and then separated from said liquid layers.
Claim 59
Independent Claim
105 words
A method of imaging comprising the steps of: a. providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer on said substrate, said softenable layer containing a layer of electrically photosensitive material contiguous the surface of said softenable layer opposite said substrate; b. imagewise contacting and removing a biased electrode to the surface portions of said softenable layer to be charged; and c. developing said imaging member by decreasing the resistance to migration of said photosensitive material in depth in said softenable layer at least sufficient to allow imagewise migration of said photosensitive material at least in depth in said softenable layer.
Claim 60
Independent Claim
105 words
A method of imaging comprising the steps of: a. providing an imaging member comprising a substrate, a substantially electrically insulating softenable layer on said substrate, said softenable layer containing a layer of electrically photosensitive material contiguous the surface of said softenable layer opposite said substrate; b. imagewise contacting and removing a biased electrode to the surface portions of said softenable layer to be charged; and c. developing said imaging member by decreasing the resistance to migration of said photosensitive material in depth in said softenable layer at least sufficient to allow imagewise migration of said photosensitive material at least in depth in said softenable layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |