JPS53133442A - Electrophotographic method and apparatus - Google Patents

Electrophotographic method and apparatus

Info

Publication number
JPS53133442A
JPS53133442A JP4781777A JP4781777A JPS53133442A JP S53133442 A JPS53133442 A JP S53133442A JP 4781777 A JP4781777 A JP 4781777A JP 4781777 A JP4781777 A JP 4781777A JP S53133442 A JPS53133442 A JP S53133442A
Authority
JP
Japan
Prior art keywords
image
electrophotographic method
latent image
charge
holding member
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.)
Pending
Application number
JP4781777A
Other languages
English (en)
Inventor
Masaharu Nishikawa
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP4781777A priority Critical patent/JPS53133442A/ja
Priority to US05/899,416 priority patent/US4248518A/en
Priority to DE2818597A priority patent/DE2818597C3/de
Publication of JPS53133442A publication Critical patent/JPS53133442A/ja
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/04Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/045Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/001Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc. Process, composition, or product
    • Y10S430/102Electrically charging radiation-conductive surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
JP4781777A 1977-04-27 1977-04-27 Electrophotographic method and apparatus Pending JPS53133442A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4781777A JPS53133442A (en) 1977-04-27 1977-04-27 Electrophotographic method and apparatus
US05/899,416 US4248518A (en) 1977-04-27 1978-04-24 Electrophotographic copying apparatus
DE2818597A DE2818597C3 (de) 1977-04-27 1978-04-27 Verfahren und Vorrichtung zum wahlweisen Herstellen eines positiven oder negativen Tonerbildes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4781777A JPS53133442A (en) 1977-04-27 1977-04-27 Electrophotographic method and apparatus

Publications (1)

Publication Number Publication Date
JPS53133442A true JPS53133442A (en) 1978-11-21

Family

ID=12785898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4781777A Pending JPS53133442A (en) 1977-04-27 1977-04-27 Electrophotographic method and apparatus

Country Status (3)

Country Link
US (1) US4248518A (ja)
JP (1) JPS53133442A (ja)
DE (1) DE2818597C3 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0664393B2 (ja) * 1988-02-11 1994-08-22 キヤノン株式会社 帯電用部材、それを有する接触帯電装置、それを用いた接触帯電方法およびそれを有する電子写真装置
JPH034247A (ja) * 1989-05-31 1991-01-10 Toshiba Corp 感光体の表面電位制御装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817765A (en) * 1956-01-03 1957-12-24 Haloid Co Xerographic method
US2934649A (en) * 1957-01-09 1960-04-26 Haloid Xerox Inc Induction charging
US3615395A (en) * 1966-09-28 1971-10-26 Canon Camera Co Electrostatic and electrophotographic variable contrast image-forming methods
JPS4813455B1 (ja) * 1968-11-05 1973-04-27
US3794418A (en) * 1971-03-04 1974-02-26 Xerox Corp Imaging system
JPS5026546A (ja) * 1973-07-06 1975-03-19
US3997259A (en) * 1973-11-08 1976-12-14 Xerox Corporation Apparatus for reducing image background in electrostatic reproduction machines
US3967891A (en) * 1975-04-14 1976-07-06 Xerox Corporation Imaging system for electrostatic reproduction machines

Also Published As

Publication number Publication date
DE2818597A1 (de) 1978-11-09
DE2818597C3 (de) 1981-01-29
DE2818597B2 (de) 1980-05-08
US4248518A (en) 1981-02-03

Similar Documents

Publication Publication Date Title
JPS5430039A (en) Recorder
JPS5422837A (en) Charge control of copying apparatus for zerography
JPS5242125A (en) Transfer process for toner image and device therefor
JPS5345245A (en) Electrostatic latent image developing apparatus
JPS53136838A (en) Automatic controlling method of image quality in transfer type electrostatic copier
JPS5264936A (en) Apparatus for electronic photography
JPS5425830A (en) Image forming method in electrophotographic copiers and others
JPS53133442A (en) Electrophotographic method and apparatus
JPS5427433A (en) Transfer method
JPS5424638A (en) Magnetic brush developing device
JPS53121623A (en) Dichromatic electrophotographic copying method
JPS5273736A (en) Development process for electrostatic latent image
JPS5437761A (en) Developing device in copying apparatus
JPS547332A (en) Electrophotographic method
JPS5417846A (en) Dichromatic electrophotographic copying method
JPS543537A (en) Dichromatic electrophotographic copying method
JPS53109635A (en) Electrophotographic apparatus
JPS51113635A (en) Image forming apparatus
JPS52101049A (en) Copying material separating method and device thereof
JPS52146638A (en) Developing device for electrostatic image
JPS53121629A (en) Electrophotographic method and device
JPS545430A (en) Dichromatic electrophotographic copying method
JPS53115229A (en) Reversal developing method and device by making use of single component magnetic toner
JPS5437750A (en) Cleaning device in electrophotographic copier and other
JPS5442143A (en) Electrophotographic method