JPS57212458A - Electrophotographic copying method - Google Patents

Electrophotographic copying method

Info

Publication number
JPS57212458A
JPS57212458A JP9673181A JP9673181A JPS57212458A JP S57212458 A JPS57212458 A JP S57212458A JP 9673181 A JP9673181 A JP 9673181A JP 9673181 A JP9673181 A JP 9673181A JP S57212458 A JPS57212458 A JP S57212458A
Authority
JP
Japan
Prior art keywords
peak wavelength
light
destaticizer
drum
lights
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
JP9673181A
Other languages
Japanese (ja)
Inventor
Masahide Harada
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 JP9673181A priority Critical patent/JPS57212458A/en
Publication of JPS57212458A publication Critical patent/JPS57212458A/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/06—Eliminating residual charges from a reusable imaging member
    • G03G21/08—Eliminating residual charges from a reusable imaging member using optical radiation

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

PURPOSE:To avoid the change of the electrostatic capacity of a photoreceptor due to the repetitive use and to prevent the fluctuation of the charging potential, by performing the irradiation for destaticization with the 1st peak wavelength light and then with the 2nd peak wavelength light of different wavelength and at the same time superposing both lights on each other at least at a part of them. CONSTITUTION:The 1st and 2nd destaticizers 8 and 9 are provided at the positions near the circumference surface of a photoreceptor drum 1 provided between a cleaning device 7 and a charger 2. The destaticizer 8 emits the light having a >=6,000Angstrom peak wavelength to give an exposure over the entire region in the width direction of the drum 1 with a proper width secured in the circumference direction. The 2nd destaticizer 9 emits the light having a <=6,000Angstrom peak wavelength to perform an exposure like the destaticizer 8. These two lights superpose at the end part in the width direction which is the circumferential direction of the drum 1.
JP9673181A 1981-06-24 1981-06-24 Electrophotographic copying method Pending JPS57212458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9673181A JPS57212458A (en) 1981-06-24 1981-06-24 Electrophotographic copying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9673181A JPS57212458A (en) 1981-06-24 1981-06-24 Electrophotographic copying method

Publications (1)

Publication Number Publication Date
JPS57212458A true JPS57212458A (en) 1982-12-27

Family

ID=14172862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9673181A Pending JPS57212458A (en) 1981-06-24 1981-06-24 Electrophotographic copying method

Country Status (1)

Country Link
JP (1) JPS57212458A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603690A (en) * 1983-06-22 1985-01-10 Mita Ind Co Ltd Electrophotographic method
JPS6093475A (en) * 1983-10-27 1985-05-25 Minolta Camera Co Ltd Copying method
JPS6138969A (en) * 1984-07-31 1986-02-25 Mita Ind Co Ltd Formation of picture
JP2014182182A (en) * 2013-03-18 2014-09-29 Toshiba Corp Image forming apparatus and electricity removing method of image carrier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547347A (en) * 1977-06-14 1979-01-20 Siemens Ag Electronic copy apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547347A (en) * 1977-06-14 1979-01-20 Siemens Ag Electronic copy apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603690A (en) * 1983-06-22 1985-01-10 Mita Ind Co Ltd Electrophotographic method
JPH0475517B2 (en) * 1983-06-22 1992-12-01 Mita Industrial Co Ltd
JPS6093475A (en) * 1983-10-27 1985-05-25 Minolta Camera Co Ltd Copying method
JPS6138969A (en) * 1984-07-31 1986-02-25 Mita Ind Co Ltd Formation of picture
JP2014182182A (en) * 2013-03-18 2014-09-29 Toshiba Corp Image forming apparatus and electricity removing method of image carrier

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