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GB1288702A - - Google Patents

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Publication number
GB1288702A
GB1288702AGB1288702DAGB1288702AGB 1288702 AGB1288702 AGB 1288702AGB 1288702D AGB1288702D AGB 1288702DAGB 1288702 AGB1288702 AGB 1288702A
Authority
GB
United Kingdom
Prior art keywords
photo
heat
conductive layer
exposure
charging
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
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 filedfiledCritical
Publication of GB1288702ApublicationCriticalpatent/GB1288702A/en
Expiredlegal-statusCriticalCurrent

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Abstract

1288702 Electro-photography &c INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [16 March 1970] 21435/71 Heading G2H [Also in Division B6] A charge pattern is produced on the surface of a photo-conductive layer or an insulative coating thereon, the photo-conductive layer being in contact with a heat-sensitive recording layer, whereafter the photo-conductive layer is subjected to radio frequency heating, heat images thereby being formed in the photo-conductive and recording layers, the latter image being converted into a visible or magnetic image. The charge image may be formed by uniform charging followed by imagewise radiation exposure or by imagewise charging. Exposure may be by projection from an original or by scanning with a laser beam or an incoherent intensity-modulated light beam. The heat-sensitive recording layer may be of paper, cholesteric liquid crystals which change colour when heated, or magnetic film. Fig. 2 shows the successive steps of charging 8, exposure 10, and heating 12 of a photo-conductive layer 6 on a heat-sensitive paper 14 in a camera 16.
GB1288702D1970-03-161971-04-19ExpiredGB1288702A (en)

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
US1958870A1970-03-161970-03-16

Publications (1)

Publication NumberPublication Date
GB1288702Atrue GB1288702A (en)1972-09-13

Family

ID=21793992

Family Applications (1)

Application NumberTitlePriority DateFiling Date
GB1288702DExpiredGB1288702A (en)1970-03-161971-04-19

Country Status (6)

CountryLink
US (1)US3673594A (en)
JP (1)JPS5115746B1 (en)
CA (1)CA932377A (en)
DE (1)DE2112199A1 (en)
FR (1)FR2087778A5 (en)
GB (1)GB1288702A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE2218640C3 (en)*1972-04-181980-03-06Horst Prof. Dr.-Ing. 2948 Schortens Germer Device for recording characters or the like
US4052208A (en)*1973-05-041977-10-04Martinelli Michael AImage recording medium employing photoconductive granules and a heat disintegrable layer
US4583833A (en)*1984-06-071986-04-22Xerox CorporationOptical recording using field-effect control of heating
US5161233A (en)*1988-05-171992-11-03Dai Nippon Printing Co., Ltd.Method for recording and reproducing information, apparatus therefor and recording medium
GB8918622D0 (en)*1989-08-151989-09-27Minnesota Mining & MfgThermal imaging system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3043685A (en)*1957-07-181962-07-10Xerox CorpXerographic and magnetic image recording and reproducing
GB966694A (en)*1959-08-101964-08-12Minnesota Mining & MfgThe production of copies of graphic originals by successive exposures to light and to heat producing radiation
US3355289A (en)*1962-05-021967-11-28Xerox CorpCyclical xerographic process utilizing a selenium-tellurium xerographic plate
US3284196A (en)*1962-10-111966-11-08IbmApparatus and method for electric recording
US3250636A (en)*1963-01-021966-05-10Xerox CorpMethod and apparatus for image reproduction with the use of a reusable heat demagnetizable ferromagnetic imaging layer
GB1143836A (en)*1965-05-26

Also Published As

Publication numberPublication date
CA932377A (en)1973-08-21
JPS5115746B1 (en)1976-05-19
US3673594A (en)1972-06-27
FR2087778A5 (en)1971-12-31
DE2112199A1 (en)1971-10-07

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Legal Events

DateCodeTitleDescription
PSPatent sealed [section 19, patents act 1949]
PLNPPatent lapsed through nonpayment of renewal fees
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