US3894869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polychromatic migration imaging system
Assignee: Xerox Corp
•
Filing: 1973-05-23
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Granted: 1975-07-15
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Expires: 1993-05-23
Abstract
Abstract A polychromatic migration imaging system is disclosed. Typically, a plate comprising a conductive substrate coated with a softenable insulating layer overcoated with a mixture of different colored photosensitive particles is electrostatically charged and exposed to a polychromatic image. The softenable layer is softened, allowing selective migration of some particles to the substrate, resulting in a polychromatic image.
Inventors
- 👤 William L Goffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:17
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
42 words
AN IMAGINING MEMBER COMPRISING AN ELECTRICALLY INSULATING SOFTENABLE LAYER SUBSTANTIALLY DEVOID OF ELECTICALLY HOTOSENSITIVE PARTICLES EXCEPT HAVING IN CONTRACT THEREWITH AND CONTIGUOUS ONE SURFACE AND AT LEAST PARTIALLY EMBEDDED THEREIN, A LAYER OF ELECTRICALLY PHOTOSENSITIVE MIGRATION PARTICLES OF AT LEAST TWO COLORS.
Claim 2
Dependent Claim
42 words
AN IMAGINING MEMBER COMPRISING AN ELECTRICALLY INSULATING SOFTENABLE LAYER SUBSTANTIALLY DEVOID OF ELECTICALLY HOTOSENSITIVE PARTICLES EXCEPT HAVING IN CONTRACT THEREWITH AND CONTIGUOUS ONE SURFACE AND AT LEAST PARTIALLY EMBEDDED THEREIN, A LAYER OF ELECTRICALLY PHOTOSENSITIVE MIGRATION PARTICLES OF AT LEAST TWO COLORS.
Claim 3
Dependent Claim
21 words
The imaging member of claim 1 wherein the electrically photosensitive particles comprise a photoconductive outer coating over an invert inner core.
Claim 4
Dependent Claim
16 words
The imaging member of claim 1 further including a substrate in contact with said softenable layer.
Claim 5
Dependent Claim
12 words
The imaging member of claim 3 wherein said substrate is electrically conductive.
Claim 6
Dependent Claim
12 words
The imaging member of claim 3 wherein said substrate is electrically insulating.
Claim 7
Dependent Claim
29 words
An imaging member according to claim 1 wherein said electrically insulating softenable layer has embedded in the free surface thereof a thin non-continuous layer comprising said electrically photosensitive particles.
Claim 8
Dependent Claim
12 words
The imaging member of claim 6 wherein said substrate is electrically conductive.
Claim 9
Dependent Claim
21 words
The imaging member of claim 6 wherein said insulating layer has a thickness of from about 1 to about 4 microns.
Claim 10
Dependent Claim
40 words
The imaging member of claim 6 wherein said electrically photosensitive particles comprise a mixture of cyan colored particles sensitive mainly to red light, magenta colored particles sensitive mainly to green light and yellow colored particles sensitive mainly to blue light.
Claim 11
Dependent Claim
19 words
An imaging member of claim 6 wherein the softenable material comprises a glyceryl tri-ester of 50% hydrogenated wood resin.
Claim 12
Dependent Claim
15 words
An imaging member of claim 1 wherein the softenable layer comprises an organic polymeric material.
Claim 13
Dependent Claim
40 words
The imaging member of claim 1 wherein said electrically photosensitive particles comprise a mixture of cyan colored particles sensitive mainly to red light, magenta colored particles sensitive mainly to green light and yellow colored particles sensitive mainly to blue light.
References Cited (Backward Citations)
US3140175A
Cited
US3520681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |