GB1306665A - Electrophotographic recording element and method of charging same - Google Patents

Electrophotographic recording element and method of charging same

Info

Publication number
GB1306665A
GB1306665A GB3918271A GB3918271A GB1306665A GB 1306665 A GB1306665 A GB 1306665A GB 3918271 A GB3918271 A GB 3918271A GB 3918271 A GB3918271 A GB 3918271A GB 1306665 A GB1306665 A GB 1306665A
Authority
GB
United Kingdom
Prior art keywords
aug
temperature change
layer
plate
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3918271A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Corp filed Critical RCA Corp
Publication of GB1306665A publication Critical patent/GB1306665A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/028—Layers in which after being exposed to heat patterns electrically conductive patterns are formed in the layers, e.g. for thermoxerography
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02—Charge-receiving layers
    • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
    • G03G5/082—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and not being incorporated in a bonding material, e.g. vacuum deposited
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/02—Arrangements for laying down a uniform charge
    • G03G2215/026—Arrangements for laying down a uniform charge by coronas
    • G03G2215/028—Arrangements for laying down a uniform charge by coronas using pointed electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001—Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/102—Electrically charging radiation-conductive surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

1306665 Electrostatic charging process RCA CORPORATION 20 Aug 1971 [31 Aug 1970] 39182/71 Heading G2H [Also in Division H1] A uniform electrostatic charge is produced on an electro-photographic element comprising a layer of photo-conductive pyroelectric material by heating or cooling the layer. In a preferred embodiment a plate 32 of Al, Cu or stainless steel has joined thereto by solder or conductive paste 36, a plurality 28 of monocrystalline ZnO wafers doped with Cu or Li oriented with the c-axis normal to the plate 32. Wafers of hexagonal, rectangular or square shape may be used. The element may be warmed by heater 42 or cooled by jets 47 to produce the temperature change. Once charged the element may be imagewise exposed, developed &c. in a conventional manner. Peltier elements may be used to effect cooling. The temperature change is preferably between 5 and 30‹C. and the voltage developed is proportional to the wafer thickness.
GB3918271A 1970-08-31 1971-08-20 Electrophotographic recording element and method of charging same Expired GB1306665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6806770A 1970-08-31 1970-08-31

Publications (1)

Publication Number Publication Date
GB1306665A true GB1306665A (en) 1973-02-14

Family

ID=22080212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3918271A Expired GB1306665A (en) 1970-08-31 1971-08-20 Electrophotographic recording element and method of charging same

Country Status (11)

Country Link
US (1) US3713822A (en)
JP (1) JPS4931659B1 (en)
AU (1) AU459574B2 (en)
BE (1) BE771909A (en)
CA (1) CA945423A (en)
CH (1) CH542465A (en)
DE (1) DE2141918A1 (en)
FR (1) FR2104360A5 (en)
GB (1) GB1306665A (en)
NL (1) NL7111935A (en)
SE (1) SE361746B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935327A (en) * 1973-08-06 1976-01-27 Minnesota Mining And Manufacturing Company Copying using pyroelectric film
US3899969A (en) * 1973-08-06 1975-08-19 Minnesota Mining & Mfg Printing using pyroelectric film
US3992204A (en) * 1973-08-06 1976-11-16 Minnesota Mining And Manufacturing Company Method and medium for producing electrostatic charge patterns
JPS5112242U (en) * 1974-07-15 1976-01-29
JPS5183443U (en) * 1974-12-24 1976-07-05
US4106933A (en) * 1975-06-18 1978-08-15 Minnesota Mining And Manufacturing Company Piezoelectric method and medium for producing electrostatic charge patterns
US4092862A (en) * 1976-05-04 1978-06-06 Minnesota Mining And Manufacturing Thermal gradient temperature sensor
US4465764A (en) * 1982-09-30 1984-08-14 Pennwalt Corporation Use of pyroelectric and photovoltaic polyvinylidene fluoride to enchance the photosensitivity of silver halide emulsions and the products made thereby
JPH0233155A (en) * 1988-07-22 1990-02-02 Canon Inc Electrophotographic sensitive body
US5153615A (en) * 1991-04-26 1992-10-06 Xerox Corporation Pyroelectric direct marking method and apparatus
US5185619A (en) * 1991-04-26 1993-02-09 Xerox Corporation Electrostatic printing method and apparatus employing a pyroelectric imaging member
JPH09254442A (en) * 1996-03-19 1997-09-30 Sharp Corp Image forming apparatus
US6342313B1 (en) 1998-08-03 2002-01-29 The Curators Of The University Of Missouri Oxide films and process for preparing same
US6291085B1 (en) 1998-08-03 2001-09-18 The Curators Of The University Of Missouri Zinc oxide films containing P-type dopant and process for preparing same
US6936101B2 (en) * 2002-06-24 2005-08-30 Cermet, Inc. Semi-insulating bulk zinc oxide single crystal
US7172813B2 (en) * 2003-05-20 2007-02-06 Burgener Ii Robert H Zinc oxide crystal growth substrate
US11968899B2 (en) * 2012-02-07 2024-04-23 Ethan James Ciccotelli Method and device for the generation of electricity directly from heat

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573906A (en) * 1967-01-11 1971-04-06 Xerox Corp Electrophotographic plate and process
US3579332A (en) * 1968-05-27 1971-05-18 Rca Corp Single-crystal zinc oxide and an electrophotographic plate made therefrom

Also Published As

Publication number Publication date
FR2104360A5 (en) 1972-04-14
BE771909A (en) 1971-12-31
AU3229871A (en) 1973-02-15
DE2141918A1 (en) 1972-03-02
CH542465A (en) 1973-09-30
JPS4931659B1 (en) 1974-08-23
US3713822A (en) 1973-01-30
SE361746B (en) 1973-11-12
CA945423A (en) 1974-04-16
NL7111935A (en) 1972-03-02
AU459574B2 (en) 1975-03-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees