GB1405337A - Method of and apparatus for reducing the degree of ozone formation in discharge devices - Google Patents

Method of and apparatus for reducing the degree of ozone formation in discharge devices

Info

Publication number
GB1405337A
GB1405337A GB1278373A GB1278373A GB1405337A GB 1405337 A GB1405337 A GB 1405337A GB 1278373 A GB1278373 A GB 1278373A GB 1278373 A GB1278373 A GB 1278373A GB 1405337 A GB1405337 A GB 1405337A
Authority
GB
United Kingdom
Prior art keywords
degree
reducing
discharge devices
potential
voltage
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
GB1278373A
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of GB1405337A publication Critical patent/GB1405337A/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

Abstract

1405337 Electro-photography HOECHST AG 16 March 1973 [20 March 1972] 12783/73 Heading G2H [Also in Division H1] To reduce the degree of ozone generation during the charging of a material 4 using a corona discharge wire 1 screened by a substantially U-shaped electrically conductive screen 2, a voltage from a source 5 is applied to the screen 2 the potential of which lies between the potential of the voltage from a source 7 applied to the wire 1 and the potential of the material 4. The apparatus may include a grid 3 connected to a third voltage source 8.
GB1278373A 1972-03-20 1973-03-16 Method of and apparatus for reducing the degree of ozone formation in discharge devices Expired GB1405337A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2213419A DE2213419A1 (en) 1972-03-20 1972-03-20 METHODS FOR REDUCING OZONE PRODUCTION

Publications (1)

Publication Number Publication Date
GB1405337A true GB1405337A (en) 1975-09-10

Family

ID=5839478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1278373A Expired GB1405337A (en) 1972-03-20 1973-03-16 Method of and apparatus for reducing the degree of ozone formation in discharge devices

Country Status (7)

Country Link
US (1) US3843906A (en)
JP (1) JPS498240A (en)
AU (1) AU464794B2 (en)
DE (1) DE2213419A1 (en)
FR (1) FR2176915A1 (en)
GB (1) GB1405337A (en)
NL (1) NL7303359A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2270700B1 (en) * 1974-05-09 1980-01-11 Breton Jacques
DE2611503C2 (en) * 1975-04-28 1986-09-04 Xerox Corp., Rochester, N.Y. Electrostatic copier
JPS5343537A (en) * 1976-10-01 1978-04-19 Olympus Optical Co Ltd Corona charger
JPS54156546A (en) * 1978-05-31 1979-12-10 Olympus Optical Co Ltd Corona charger
JPS5511255A (en) * 1978-07-11 1980-01-26 Ricoh Co Ltd Corona discharge device
US4239373A (en) * 1978-11-01 1980-12-16 Xerox Corporation Full wave rectification apparatus for operation of DC corotrons
JPS5825661A (en) * 1981-08-07 1983-02-15 Ricoh Co Ltd Electrostatic charger
JPS5972067A (en) * 1982-10-18 1984-04-23 Toshiba Corp Detector for abnormality of electrifier
JPS59208563A (en) * 1983-05-02 1984-11-26 ゼロツクス・コ−ポレ−シヨン Minicorotron
JPS60150561U (en) * 1984-03-09 1985-10-05 ミノルタ株式会社 Corona discharge device
JPH034247A (en) * 1989-05-31 1991-01-10 Toshiba Corp Surface potential controller for photosensitive body
US7149458B2 (en) * 2005-02-28 2006-12-12 Xerox Corporation Xerographic charging device having three pin arrays
JP4396633B2 (en) * 2005-12-27 2010-01-13 ブラザー工業株式会社 Image forming apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756687A (en) * 1969-11-24 1971-03-01 Ibm CORONA CHARGING DEVICE

Also Published As

Publication number Publication date
AU464794B2 (en) 1975-09-04
NL7303359A (en) 1973-09-24
AU5339073A (en) 1974-10-10
DE2213419A1 (en) 1973-10-04
FR2176915A1 (en) 1973-11-02
JPS498240A (en) 1974-01-24
US3843906A (en) 1974-10-22

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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