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US4103994A Expired / Lapsed US ⏱️ 0.0 years remaining

Recording plate

Assignee: Xerox Corp
•
Filing: 1977-02-11
•
Granted: 1978-08-01
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Expires: 1997-02-11
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Abstract

Abstract An image recording member in which a pair of conductive members are disposed in a photoconductive member contiguous with a support member. Each of the conductive members has an insulating coating thereon for electrical isolation thereof. An electrical potential is applied to one of the conductive members for creating a potential difference between the pair of conductive members. This forms an electrical field through the photoconductive member.

Inventors

  • 👤 Lloyd F. Bean

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 09:17
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G5/00; G03G5/14

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 74 words
An image recording member, including: a support member; a photoconductive layer contiguous with said support member; at least a pair of conductive members embedded in said photoconductive layer with each of said conductive members being spaced from one another and having an insulating coating thereon for electrical isolation thereof; and means for generating an electrical potential difference between said pair of conductive members so as to form an electrical field in said photoconductive layer.
Claim 2
Dependent Claim 74 words
An image recording member, including: a support member; a photoconductive layer contiguous with said support member; at least a pair of conductive members embedded in said photoconductive layer with each of said conductive members being spaced from one another and having an insulating coating thereon for electrical isolation thereof; and means for generating an electrical potential difference between said pair of conductive members so as to form an electrical field in said photoconductive layer.
Claim 3
Dependent Claim 26 words
A recording member as recited in claim 1, wherein said pair of conductive members includes a first conductive member comprising a first fine conductive grid pattern.
Claim 4
Dependent Claim 34 words
A recording member as recited in claim 2, wherein said pair of conductive members includes a second conductive member comprising a second fine conductive grid pattern spaced from said first fine conductive grid pattern.
Claim 5
Dependent Claim 16 words
A recording member as recited in claim 3, wherein said support member includes an insulating layer.
Claim 6
Dependent Claim 16 words
A recording member as recited in claim 3, wherein said support member includes a conductive layer.
Claim 7
Dependent Claim 119 words
An electrophotographic printing machine including: a recording layer comprising a support member, a photoconductive member contiguous with the support member, at least a pair of conductive members embedded in the photoconductive member with each of the conductive members being spaced from one another and having an insulating coating thereon for electrical isolation thereof, and means for generating an electrical potential difference between the pair of conductive members so as to form an electrical field in the photoconductive layer; and means for exposing said recording member to a light image of an original document being reproduced so that the electrical field in the illuminated regions of the photoconductive layer collapses forming a latent image therein corresponding to the original document.
Claim 8
Dependent Claim 119 words
An electrophotographic printing machine including: a recording layer comprising a support member, a photoconductive member contiguous with the support member, at least a pair of conductive members embedded in the photoconductive member with each of the conductive members being spaced from one another and having an insulating coating thereon for electrical isolation thereof, and means for generating an electrical potential difference between the pair of conductive members so as to form an electrical field in the photoconductive layer; and means for exposing said recording member to a light image of an original document being reproduced so that the electrical field in the illuminated regions of the photoconductive layer collapses forming a latent image therein corresponding to the original document.
Claim 9
Dependent Claim 30 words
A printing machine as recited in claim 6, wherein the pair of conductive members of said recording member includes a first conductive member comprising a first fine conductive grid pattern.
Claim 10
Dependent Claim 38 words
A printing machine as recited in claim 7, wherein the pair of conductive members of said recording member includes a second conductive member comprising a second fine conductive grid pattern spaced from the first fine conductive grid pattern.
Claim 11
Dependent Claim 20 words
A printing machine as recited in claim 8, wherein the support member of said recording member includes an insulating layer.
Claim 12
Dependent Claim 20 words
A printing machine as recited in claim 8, wherein the support member of said recording member includes a conductive layer.
Claim 13
Dependent Claim 23 words
A printing machine as recited in claim 8, further including means for depositing uncharged insulating particles on said recording member in image configuration.
Claim 14
Dependent Claim 49 words
A printing machine as recited in claim 11, further including: means for transferring the particles from said recording member to a sheet of support material; and means for affixing substantially permanently the particles to the sheet of support material so as to form a copy of the original document.

References Cited (Backward Citations)

US3288602A Cited
US3426354A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-07-31 1982-01-30 1982-08-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-07-31 1986-01-30 1986-08-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-07-31 1990-01-30 1990-08-01 $7700.00 Window Closed / Lapsed

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