Patent US3787208A successfully refreshed from Google Patents.
US3787208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic imaging member having photoconductive material in inter-locking continuous paths
Assignee: Xerox Corp
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Filing: 1970-09-25
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Granted: 1974-01-22
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Expires: 1990-09-25
Abstract
Abstract A xerographic photoreceptor layer which comprises photoconductive particles dispersed in an insulating resin matrix, the photoconductive particles are present in an amount from about 1 to 25 percent by volume of the layer, and are dispersed in a controlled manner to form a plurality of continuous paths through the thickness of said layer. Methods of making and imaging the photoreceptor layer are also disclosed.
Inventors
- 👤 R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:33
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/0571; G03G5/0575; G03G5/0582; G03G5/0596
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
23 words
The layer of claim 1 in which the photoconductive material is present in an amount from about 3 to 15 percent by volume.
Claim 2
Dependent Claim
21 words
The layer of claim 1 in which the matrix material is selected from the group consisting of thermoplastic and thermosetting resins.
Claim 3
Dependent Claim
13 words
The layer of claim 1 in which the photoconductor comprises an inorganic material.
Claim 4
Dependent Claim
14 words
The layer of claim 4 in which the inorganic material comprises a photoconductive glass.
Claim 5
Dependent Claim
13 words
The layer of claim 1 in which the photoconductor comprises an inorganic material.
Claim 6
Dependent Claim
32 words
The layer of claim 1 in which the photoconductor comprises a material selected from the group consisting of cadmium sulfide, cadmium sulfoselenide, zinc oxide, vitreous selenium, and the X-form of metal-free phthalocyanine.
Claim 7
Dependent Claim
12 words
The layer of claim 1 in which the photoconductor comprises cadmium sulfoselenide.
Claim 8
Dependent Claim
37 words
The layer of claim 1 in which the resin comprises a material selected from the group consisting of polysulfones, acrylates, polyethylene, styrene, diallyphthalate, polyphenylene sulfide, melamine formaldehyde, epoxies, polyesters, polyvinyl chloride, nylon, polyvinyl fluoride, and mixtures thereof.
Claim 9
Dependent Claim
19 words
The layer of claim 1 in which the resin material comprises a polyester and the photoconductor comprises cadmium sulfoselenide.
Claim 10
Dependent Claim
89 words
A xerographic imaging member which includes a supporting substrate having thereon a photoconductive insulating layer, said layer comprising an insulating organic resin matrix containing therein photoconductive particles, with substantially all of the photoconductive particles being in substantiAl particle-to-particle contact in said member in a multiplicity of interlocking photoconductive paths through the thickness of said layer, said photoconductive paths being present in a volume concentration, based on the volume of said layer, of from about 1 to 25 percent, with the outer surface of said layer comprising organic resin material.
Claim 11
Dependent Claim
22 words
The member of claim 11 in which the photoconductor is present in an amount from about 3 to 15 percent by volume.
Claim 12
Dependent Claim
18 words
The member of claim 11 in which the resin comprises a polyester, and the photoconductor comprises cadmium sulfoselenide.
Claim 13
Independent Claim
114 words
A method of imaging which comprises: a. providing a xerographic imaging member which includes a photoconductive insulating layer, said layer comprising an insulating organic resin matrix and a photoconductive material, with substantially all of the photoconductive material in said member in a multiplicity of interlocking photoconductive continuous paths through the thickness of said layer, said photoconductive paths being present in a volume concentration, based on the volume of said layer, of from about 1 to 25 percent, with the outer surface of said layer comprising organic resin material, b. forming a latent electrostatic image on at least one surface of said layer, and c. developing said latent electrostatic image to form a visible image.
Claim 14
Dependent Claim
23 words
The method of claim 14 in which the photoconductive particles are present in an amount from about 3 to 15 percent by volume.
Claim 15
Independent Claim
124 words
A method of imaging which comprises: a. providing a xerographic imaging member which includes a photoconductive insulating layer, said layer comprising an insulating organic resin matrix and a photoconductive material, with substantially all of the photoconductive material in said member in a multiplicity of interlocking photoconductive continuous paths through the thickness of said layer, said photoconductive paths being present in a volume concentration, based on the volume of said layer, of from about 1 to 25 percent, with the outer surface of said layer comprising organic resin material, b. uniformly electrostatically charging the surface of said layer, c. exposing said layer to a source of activating radiation to form a latent electrostatic image, and d. developing said latent image to form a visible image.
Claim 16
Dependent Claim
22 words
The plate of claim 16 in which the photoconductor is present in an amount from about 3 to 15 percent by volume.
Claim 17
Dependent Claim
21 words
The method of claim 16 in which the imaging steps (b), (c) and (d) are repeated at least one additional time.
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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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |