JPS566251A - Electrophotographic method - Google Patents

Electrophotographic method

Info

Publication number
JPS566251A
JPS566251A JP8236379A JP8236379A JPS566251A JP S566251 A JPS566251 A JP S566251A JP 8236379 A JP8236379 A JP 8236379A JP 8236379 A JP8236379 A JP 8236379A JP S566251 A JPS566251 A JP S566251A
Authority
JP
Japan
Prior art keywords
copying
photoreceptor
uniform light
corona discharge
charger
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
JP8236379A
Other languages
Japanese (ja)
Inventor
Koichi Irihara
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP8236379A priority Critical patent/JPS566251A/en
Publication of JPS566251A publication Critical patent/JPS566251A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To render the states of a photoreceptor before and after copying constant, by performing at least charging and uniform light exposure in the step preceding a copying step in the electrophotographic method using a photoreceptor of 2-layer structure made of cadmium sulfide.
CONSTITUTION: A copying process during rotation of photoreceptor 1 comprises a pretreatment step for exposing to negative polarity corona discharge from corona charger 2 and uniform light from uniform light illuminating unit 13; a step for charging photoreceptor 1 by negative polarity corona discharge of corona charger 2; a step for forming a toner image with developing unit 7; and a step for copying the toner image on paper 9. Charger 2 for negative corona discharge and unit 13 are energized during the first rotation of receptor 1 in order to render the trap state and the surface potential similar to those of receptor 1 after copying, thus permitting a copy of constant density to be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP8236379A 1979-06-28 1979-06-28 Electrophotographic method Pending JPS566251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8236379A JPS566251A (en) 1979-06-28 1979-06-28 Electrophotographic method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8236379A JPS566251A (en) 1979-06-28 1979-06-28 Electrophotographic method

Publications (1)

Publication Number Publication Date
JPS566251A true JPS566251A (en) 1981-01-22

Family

ID=13772488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8236379A Pending JPS566251A (en) 1979-06-28 1979-06-28 Electrophotographic method

Country Status (1)

Country Link
JP (1) JPS566251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63196232A (en) * 1987-02-10 1988-08-15 Nissei Reiki Kk Reuse of residual mix in frozen food production machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491234A (en) * 1972-04-15 1974-01-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491234A (en) * 1972-04-15 1974-01-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63196232A (en) * 1987-02-10 1988-08-15 Nissei Reiki Kk Reuse of residual mix in frozen food production machine

Similar Documents

Publication Publication Date Title
JPS5612650A (en) Two-color electrophotographic developing method and its printing method
JPS5732456A (en) Copy printing method
JPS5882282A (en) Image forming device
JPS5654473A (en) Electrophotographic copier
JPS5782848A (en) Electrophotographing method
JPS5557875A (en) Transfer type electrostatic copying machine
JPS566252A (en) Electrophotographic method
JPS5782850A (en) Electrophotographic method
JPS5774767A (en) Electrophotographic device
JPS5636659A (en) Method for making plural copies
JPS566255A (en) Electrophotographic apparatus
JPS5794770A (en) Cleaning method of electrophotographic photoreceptor
JPS5782849A (en) Electrophotographing method
JPS6337392B2 (en)
JPS5710151A (en) Preparation of montage image in copying machine
JPS5646257A (en) Image composing method
JPS57147665A (en) Electrophotographic method
JPS56156849A (en) Method and device for regular copying and reversal copying
JPS58127949A (en) Electrostatic printing method
JPS5738450A (en) Electrostatic copying method
JPS55149951A (en) Electrophotographic copying method and apparatus
JPS5774766A (en) Electrophotographic device
JPS5786838A (en) Electronic copying method
JPS5515151A (en) Electrophotographic method
JPS576854A (en) Image reproduction method in copying machine