JPS56168666A - Electrophotographic method - Google Patents

Electrophotographic method

Info

Publication number
JPS56168666A
JPS56168666A JP7258880A JP7258880A JPS56168666A JP S56168666 A JPS56168666 A JP S56168666A JP 7258880 A JP7258880 A JP 7258880A JP 7258880 A JP7258880 A JP 7258880A JP S56168666 A JPS56168666 A JP S56168666A
Authority
JP
Japan
Prior art keywords
photoreceptor
voltage
ohm
law
charging
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
JP7258880A
Other languages
Japanese (ja)
Inventor
Tatsuya Kato
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7258880A priority Critical patent/JPS56168666A/en
Publication of JPS56168666A publication Critical patent/JPS56168666A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To reduce fatigue deterioration of characteristics due to repeated charging of a photoreceptor, to enhance durability, and to always obtain a good image, by charging the photoreceptor in the range in which Ohm's law that voltage/current relationship is linear applies. CONSTITUTION:A photoreceptor is charged within a voltage VH in the region I in which Ohm's law is appliable, i.e., the characteristic curve of voltage/current of the photoreceptor is linear as shown in the figure. In the region II, the relationship deviates from Ohm's law and current I increases nonlinearly, and when voltage exceeds VS and enters the region III, dielectric breakdown occurs at least. For example, a specified pirylene pigment is vapor-deposited on a conductive substrate to form a carrier generating layer, and a carrier transfer layer containing a specified electron donor is formed on this layer to form a photoreceptor, and when the charged voltage exceeds >=-560V negative voltage as the voltage VH, the charging fatigue of the photoreceptor occurs soon, but when the charge is <=-560V, even repeated imaging in >=10,000 times does not cause deterioration of image quality.
JP7258880A 1980-05-30 1980-05-30 Electrophotographic method Pending JPS56168666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7258880A JPS56168666A (en) 1980-05-30 1980-05-30 Electrophotographic method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7258880A JPS56168666A (en) 1980-05-30 1980-05-30 Electrophotographic method

Publications (1)

Publication Number Publication Date
JPS56168666A true JPS56168666A (en) 1981-12-24

Family

ID=13493691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7258880A Pending JPS56168666A (en) 1980-05-30 1980-05-30 Electrophotographic method

Country Status (1)

Country Link
JP (1) JPS56168666A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254160A (en) * 1984-05-31 1985-12-14 Mita Ind Co Ltd Electrophotographic method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60254160A (en) * 1984-05-31 1985-12-14 Mita Ind Co Ltd Electrophotographic method

Similar Documents

Publication Publication Date Title
US3244083A (en) Xerographic device
US2976144A (en) Electrophotography
GB1448385A (en) Electrophotographic apparatus and transfer method
JPS5454041A (en) Compliex image formation
US4153836A (en) Method of altering the gradation in electrostatic recording of half-tone images
JPS6045258A (en) Electrophotographic sensitive body
JPS56168666A (en) Electrophotographic method
US4282297A (en) Charge transfer imaging
JPS5562469A (en) Electrostatic latent image developing method
US3054897A (en) Process of and apparatus for printing or copying by electrostatic photography
JPS55134874A (en) Developing method of electrostatic latent image
JPS56153782A (en) Photoconductive thin-film for television camera tube using photosensitizer layer containing amorphous silicon
JPS5574567A (en) Developing device of one-component toner
JPS56113147A (en) Recording method
JPS5692555A (en) Transfer device of electrophotographic copier
JPS5768855A (en) Electrophotography method
JPS5587165A (en) Electrostatic recorder
JPS55108681A (en) Magnetic printing method
JPS64571A (en) Electrophotographic sensitive body
GB1561810A (en) Electrophotographic deveoping processes
JPS5565970A (en) Multicolor recording system
JPS5462827A (en) Electrostatic recording and developing system
JPS5629269A (en) Electrophoretic image taking method
GB982285A (en) Process for the production of electrophotographic continuous-tone images
JPS5666875A (en) Electrophotographic method