JPS5642242A - Electrophotographic method - Google Patents

Electrophotographic method

Info

Publication number
JPS5642242A
JPS5642242A JP11825279A JP11825279A JPS5642242A JP S5642242 A JPS5642242 A JP S5642242A JP 11825279 A JP11825279 A JP 11825279A JP 11825279 A JP11825279 A JP 11825279A JP S5642242 A JPS5642242 A JP S5642242A
Authority
JP
Japan
Prior art keywords
potential
exposure
background
image
exposed
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
JP11825279A
Other languages
Japanese (ja)
Inventor
Masayuki Hida
Junzo Nakajima
Masakatsu Horie
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP11825279A priority Critical patent/JPS5642242A/en
Publication of JPS5642242A publication Critical patent/JPS5642242A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To form always a superior image, by changing over development bias potential when the same photoreceptor is exposed to the lights from 2 kinds of images to form a synthetic image using positive originals, and when an image is formed by exposure to only one light image. CONSTITUTION:Photoreceptor 1 is exposed to light from positive original 1 and when the second exposure to OFT or laser beams 7, bias potential of developing unit 8 is set to VDB2 approximate to the background potential. When only either of both the exposures is carried out, exposure quantity of the background is about half of that in the case of 2 time exposure, so the background potential is raised. As a result, the bias potential is changed over to potential VDB1 near the background potential having high potential.
JP11825279A 1979-09-14 1979-09-14 Electrophotographic method Pending JPS5642242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11825279A JPS5642242A (en) 1979-09-14 1979-09-14 Electrophotographic method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11825279A JPS5642242A (en) 1979-09-14 1979-09-14 Electrophotographic method

Publications (1)

Publication Number Publication Date
JPS5642242A true JPS5642242A (en) 1981-04-20

Family

ID=14732001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11825279A Pending JPS5642242A (en) 1979-09-14 1979-09-14 Electrophotographic method

Country Status (1)

Country Link
JP (1) JPS5642242A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104675A (en) * 1982-12-07 1984-06-16 Oki Electric Ind Co Ltd Electrophotographic printer
DE3422358A1 (en) * 1983-06-16 1984-12-20 Canon K.K., Tokio/Tokyo IMAGE PROCESSING SYSTEM
JPS6146922U (en) * 1984-08-31 1986-03-28
JPS6279818A (en) * 1985-10-02 1987-04-13 Rinfuoosu Kogyo Kk Filter for bath
JPS62110715A (en) * 1985-11-08 1987-05-21 Rinfuoosu Kogyo Kk Filtering and foaming device for bath

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104675A (en) * 1982-12-07 1984-06-16 Oki Electric Ind Co Ltd Electrophotographic printer
JPH037114B2 (en) * 1982-12-07 1991-01-31 Oki Denki Kogyo Kk
DE3422358A1 (en) * 1983-06-16 1984-12-20 Canon K.K., Tokio/Tokyo IMAGE PROCESSING SYSTEM
JPS6146922U (en) * 1984-08-31 1986-03-28
JPH0120330Y2 (en) * 1984-08-31 1989-06-16
JPS6279818A (en) * 1985-10-02 1987-04-13 Rinfuoosu Kogyo Kk Filter for bath
JPS62110715A (en) * 1985-11-08 1987-05-21 Rinfuoosu Kogyo Kk Filtering and foaming device for bath

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