GB1154225A - Improvements in or relating to an apparatus for producing a D.C. Corona - Google Patents

Improvements in or relating to an apparatus for producing a D.C. Corona

Info

Publication number
GB1154225A
GB1154225A GB37230/66A GB3723066A GB1154225A GB 1154225 A GB1154225 A GB 1154225A GB 37230/66 A GB37230/66 A GB 37230/66A GB 3723066 A GB3723066 A GB 3723066A GB 1154225 A GB1154225 A GB 1154225A
Authority
GB
United Kingdom
Prior art keywords
grid
corona
rectifier
aug
relating
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
GB37230/66A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1154225A publication Critical patent/GB1154225A/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
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Elimination Of Static Electricity (AREA)
  • Electrostatic Separation (AREA)

Abstract

1,154,225. Rectifying. EASTMAN KODAK CO. 19 Aug., 1966 [19 Aug., 1965], No. 37230/66. Heading H2F. [Also in Division G2] An A.C. corona current from an electrode 6 is rectified by passing it through a grid 14 which is earthed through a rectifier. The rectifier may be a diode 18 (Fig. 1), or a coating of unsensitized zinc oxide in a resin binder on the grid (Fig. 2, not shown). Alternatively the grid may be connected through a thyristor. A D.C. bias may be put on the grid. The invention may be used in electrophotography or in a dust trap in an air conditioning unit.
GB37230/66A 1965-08-19 1966-08-19 Improvements in or relating to an apparatus for producing a D.C. Corona Expired GB1154225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US480980A US3370212A (en) 1965-08-19 1965-08-19 Corona charging apparatus

Publications (1)

Publication Number Publication Date
GB1154225A true GB1154225A (en) 1969-06-04

Family

ID=23910097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37230/66A Expired GB1154225A (en) 1965-08-19 1966-08-19 Improvements in or relating to an apparatus for producing a D.C. Corona

Country Status (3)

Country Link
US (1) US3370212A (en)
DE (1) DE1563173B1 (en)
GB (1) GB1154225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087944A (en) * 1989-05-31 1992-02-11 Kabushiki Kaisha Toshiba Image forming apparatus with control means for the surface potential of a photosensitive body

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612864A (en) * 1968-01-13 1971-10-12 Yasuo Tamai Imaging system utilizing an electrode treated with a mixture of a hygroscopic material and a hydrophilic binder
US3566110A (en) * 1968-02-20 1971-02-23 Rca Corp Electrostatic charging apparatus with means to blow electrostatic charge onto a photoconductive surface from a remotely located corona generator
US3635157A (en) * 1968-12-30 1972-01-18 Continental Can Co Method and apparatus for electrostatically charging particles for printing or coating
US3777214A (en) * 1968-12-30 1973-12-04 Continental Can Co Method and apparatus for electrostatically charging particles for printing or coating
BE754426A (en) * 1969-08-06 1971-01-18 Xerox Corp ELECTROSTATIC CHARGING DEVICE
JPS5419260B2 (en) * 1973-12-10 1979-07-13
JPS5641113B2 (en) * 1973-12-13 1981-09-25
US3989519A (en) * 1974-09-03 1976-11-02 Gaf Corporation Means for improving the contrast of an electrostatic latent image
US3963488A (en) * 1974-09-03 1976-06-15 Gaf Corporation Contrast of electrostatic latent images with a light flooding step
JPS5252641A (en) * 1975-10-25 1977-04-27 Mita Ind Co Ltd Corona discharge device
JPS54126032A (en) * 1978-03-24 1979-09-29 Ricoh Co Ltd Charger
JPS5511255A (en) * 1978-07-11 1980-01-26 Ricoh Co Ltd Corona discharge device
US4332875A (en) * 1980-06-05 1982-06-01 Eastman Kodak Company Polymeric electrically active conductive layer for electrically activatable recording element and process
US4309497A (en) * 1980-06-13 1982-01-05 Eastman Kodak Company Polyester interlayers for electrically activatable recording (ear) elements
EP0072862B1 (en) * 1981-02-24 1989-06-21 Dennison Manufacturing Company Corona charging apparatus
US4476387A (en) * 1981-02-24 1984-10-09 Delphax Systems Corona charging apparatus
US4379969A (en) * 1981-02-24 1983-04-12 Dennison Manufacturing Company Corona charging apparatus
US4634259A (en) * 1983-12-13 1987-01-06 Casio Computer Co., Ltd. Apparatus for maintaining distinct edges between two colors in a two-color image forming device
US4637709A (en) * 1983-12-23 1987-01-20 Fuji Xerox Co., Ltd. Apparatus for generating an image from within a sheet-like member
US5319481A (en) * 1986-12-23 1994-06-07 Raychem Corporation Encapsulated liquid crystal optical read/write storage medium and system
US4731633A (en) * 1987-04-27 1988-03-15 Xerox Corporation Elimination of streamer formation in positive charging corona devices
US4868907A (en) * 1988-05-18 1989-09-19 Zerox Corporation Self-biased scorotron grid power supply and electrostatic voltmeter operable therefrom
US11228844B2 (en) 2017-05-18 2022-01-18 The Johns Hopkins University Push-pull electret transducer with controlled restoring force for low frequency microphones and energy harvesting

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2777957A (en) * 1950-04-06 1957-01-15 Haloid Co Corona discharge device
US2778946A (en) * 1951-04-18 1957-01-22 Haloid Co Corona discharge device and method of xerographic charging
US2879395A (en) * 1955-06-08 1959-03-24 Haloid Xerox Inc Charging device
US2982647A (en) * 1956-06-14 1961-05-02 Haloid Xerox Inc Electrostatic image reproduction
US2890343A (en) * 1957-12-27 1959-06-09 Ibm Xerographic drum charging apparatus
US3068356A (en) * 1960-06-15 1962-12-11 Xerox Corp Xerographic charging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087944A (en) * 1989-05-31 1992-02-11 Kabushiki Kaisha Toshiba Image forming apparatus with control means for the surface potential of a photosensitive body

Also Published As

Publication number Publication date
DE1563173B1 (en) 1972-01-13
US3370212A (en) 1968-02-20

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