JPS5565967A - Recording system - Google Patents

Recording system

Info

Publication number
JPS5565967A
JPS5565967A JP13941878A JP13941878A JPS5565967A JP S5565967 A JPS5565967 A JP S5565967A JP 13941878 A JP13941878 A JP 13941878A JP 13941878 A JP13941878 A JP 13941878A JP S5565967 A JPS5565967 A JP S5565967A
Authority
JP
Japan
Prior art keywords
negative
potential
images
region
positive
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
JP13941878A
Other languages
Japanese (ja)
Inventor
Masao Konishi
Atsushi Ishii
Shohei Segawa
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.)
Fujitsu Ltd
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 JP13941878A priority Critical patent/JPS5565967A/en
Publication of JPS5565967A publication Critical patent/JPS5565967A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrophotography Using Other Than Carlson'S Method (AREA)

Abstract

PURPOSE: To eliminate the need for negative formation by charging the charges of the polarity opposite from that of the multiple carriers of a photoconductive layer to a recording medium then charging the charges of the same polarity and performing exposure of negative images simultaneously thence performing exposure of positive images.
CONSTITUTION: Negative charges are induced on the surface of an insulation layer 8 by maintaining a charger 12 at a negative potential with respect to an conductive substrate 8 by a DC power source 17, thence the surface becomes of the potential of about -2000V. Next, when the region P of a recording medium 3 is negative exposed by light beam 15 by maintaining a charger 13 at a positive potential with respect to the conductive substrate 8 by a DC power source 18, then the region Q which is not exposed also becomes of about +500V in surface potential. After this, positive image exposure is done without charging with the charger and when light falls onto the region R alone, the surface potential becomes about -1000V and in the region S where no light falls, it is held at the potential of about +500V. Hence, the negative images and positive images may be made to visible images by using the negatively charged toner.
COPYRIGHT: (C)1980,JPO&Japio
JP13941878A 1978-11-14 1978-11-14 Recording system Pending JPS5565967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13941878A JPS5565967A (en) 1978-11-14 1978-11-14 Recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13941878A JPS5565967A (en) 1978-11-14 1978-11-14 Recording system

Publications (1)

Publication Number Publication Date
JPS5565967A true JPS5565967A (en) 1980-05-17

Family

ID=15244750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13941878A Pending JPS5565967A (en) 1978-11-14 1978-11-14 Recording system

Country Status (1)

Country Link
JP (1) JPS5565967A (en)

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