JPS5732456A - Copy printing method - Google Patents

Copy printing method

Info

Publication number
JPS5732456A
JPS5732456A JP10639880A JP10639880A JPS5732456A JP S5732456 A JPS5732456 A JP S5732456A JP 10639880 A JP10639880 A JP 10639880A JP 10639880 A JP10639880 A JP 10639880A JP S5732456 A JPS5732456 A JP S5732456A
Authority
JP
Japan
Prior art keywords
photoreceptor
image
organic photochromic
toner
charge
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
JP10639880A
Other languages
Japanese (ja)
Inventor
Yoji Ide
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 JP10639880A priority Critical patent/JPS5732456A/en
Publication of JPS5732456A publication Critical patent/JPS5732456A/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
    • G03G13/00—Electrographic processes using a charge pattern

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE:To print many copies stably by using an organic photochromic compound as a photoreceptor and by charging it after light-image irradiation. CONSTITUTION:An organic photochromic polymer or organic photochromic compound is dissolved in a solvent together with a polymer, and the solution is applied over a drum-shaped conductive base 1, such as an Al plate 3, to provide a photosensitive layer 2, thus forming a photoreceptor 3. An exposure unit 4 is used to irradiate the photoreceptor 3 an optical image of ultraviolet rays. When corona discharge is performed by a charging corona charger 5 to charge the photoreceptor 3, its irradiated part is being energized, so its charge is lessened to be held on the surface at an unirradiated part, thereby forming an electrostatic latent image. This electrostatic latent image is developed by a developing unit 6 with toner to obtain a visible image. The visible image is transferred to transfer paper 7 by performing corona discharge of the opposite polarity to the toner from the reverse surface of the transfer paper 7 by using a transfer charger 8, thereby obtaining a clear picture printed body.
JP10639880A 1980-08-04 1980-08-04 Copy printing method Pending JPS5732456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10639880A JPS5732456A (en) 1980-08-04 1980-08-04 Copy printing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10639880A JPS5732456A (en) 1980-08-04 1980-08-04 Copy printing method

Publications (1)

Publication Number Publication Date
JPS5732456A true JPS5732456A (en) 1982-02-22

Family

ID=14432577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10639880A Pending JPS5732456A (en) 1980-08-04 1980-08-04 Copy printing method

Country Status (1)

Country Link
JP (1) JPS5732456A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614128A (en) * 1984-06-11 1986-01-10 ゼネラル・エレクトリツク・カンパニイ Ac drive latching relay and its operating method
JPS62154427A (en) * 1985-12-23 1987-07-09 ゼネラル・エレクトリツク・カンパニイ Improved piezoelectric switching device and manufacture of the same
EP0299801A2 (en) * 1987-07-17 1989-01-18 Sharp Kabushiki Kaisha An electrophotographic printing process
USRE33568E (en) * 1984-12-21 1991-04-09 General Electric Company Piezoelectric ceramic switching devices and systems and methods of making the same
USRE33577E (en) * 1984-12-21 1991-04-23 General Electric Company Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture
USRE33587E (en) * 1984-12-21 1991-05-14 General Electric Company Method for (prepolarizing and centering) operating a piezoceramic power switching device
USRE33618E (en) * 1984-12-21 1991-06-25 General Electric Company Method for initially polarizing and centering a piezoelectric ceramic switching device
USRE33691E (en) * 1984-12-21 1991-09-17 General Electric Company Piezoelectric ceramic switching devices and systems and method of making the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614128A (en) * 1984-06-11 1986-01-10 ゼネラル・エレクトリツク・カンパニイ Ac drive latching relay and its operating method
USRE33568E (en) * 1984-12-21 1991-04-09 General Electric Company Piezoelectric ceramic switching devices and systems and methods of making the same
USRE33577E (en) * 1984-12-21 1991-04-23 General Electric Company Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture
USRE33587E (en) * 1984-12-21 1991-05-14 General Electric Company Method for (prepolarizing and centering) operating a piezoceramic power switching device
USRE33618E (en) * 1984-12-21 1991-06-25 General Electric Company Method for initially polarizing and centering a piezoelectric ceramic switching device
USRE33691E (en) * 1984-12-21 1991-09-17 General Electric Company Piezoelectric ceramic switching devices and systems and method of making the same
JPS62154427A (en) * 1985-12-23 1987-07-09 ゼネラル・エレクトリツク・カンパニイ Improved piezoelectric switching device and manufacture of the same
EP0299801A2 (en) * 1987-07-17 1989-01-18 Sharp Kabushiki Kaisha An electrophotographic printing process
JPS6423264A (en) * 1987-07-17 1989-01-25 Sharp Kk Electrophotographic printing process

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