JPS54122127A - Magnetic toner development process - Google Patents

Magnetic toner development process

Info

Publication number
JPS54122127A
JPS54122127A JP2950678A JP2950678A JPS54122127A JP S54122127 A JPS54122127 A JP S54122127A JP 2950678 A JP2950678 A JP 2950678A JP 2950678 A JP2950678 A JP 2950678A JP S54122127 A JPS54122127 A JP S54122127A
Authority
JP
Japan
Prior art keywords
toner
corona discharger
image
ohm
magnets
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
JP2950678A
Other languages
Japanese (ja)
Inventor
Yoshizumi Ikegami
Toshiaki Narisawa
Hirofumi Okuyama
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 JP2950678A priority Critical patent/JPS54122127A/en
Publication of JPS54122127A publication Critical patent/JPS54122127A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance transfer efficiency with a developer free of carrier, by charging the developer prepared by mixing a low resistance toner with a high resistance toner, by corona discharge immediately before development.
CONSTITUTION: The photosensitive surface of drum 1 successively passes by corona discharger 2a for destaticization, ultraviolet lamp 3, and cleaner 4, and a static latent image is formed on its surface with corona discharger 2b for precharging and exposer 5. Toner A prepared by blending a magnetic colored resin powder of resistivity below 1014 ohm.cm with a magnetic colored resin powder of resistivity above 1014 ohm.cm in an amount of 20W50 % based on the total weight is supplied onto the outer surface of sleeve 6 from storage container 8, attracted by the magnetic force of magnets 7 to sleeve 6, and conveyed in the direction reverse to that of rotation of magnets 7. On this way toner A is charged with corona discharger 2c and forms a toner image A on the photosensitive surface of drum 1. Image A is contacted to plain paper 9 and transferred to paper 9 with corona discharger 2d for transfer.
COPYRIGHT: (C)1979,JPO&Japio
JP2950678A 1978-03-15 1978-03-15 Magnetic toner development process Pending JPS54122127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2950678A JPS54122127A (en) 1978-03-15 1978-03-15 Magnetic toner development process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2950678A JPS54122127A (en) 1978-03-15 1978-03-15 Magnetic toner development process

Publications (1)

Publication Number Publication Date
JPS54122127A true JPS54122127A (en) 1979-09-21

Family

ID=12277966

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2950678A Pending JPS54122127A (en) 1978-03-15 1978-03-15 Magnetic toner development process

Country Status (1)

Country Link
JP (1) JPS54122127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794755A (en) * 1980-12-04 1982-06-12 Ricoh Co Ltd Method for electronic photography

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5333152A (en) * 1976-09-08 1978-03-28 Matsushita Electric Ind Co Ltd Dry developer agent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
JPS5333152A (en) * 1976-09-08 1978-03-28 Matsushita Electric Ind Co Ltd Dry developer agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794755A (en) * 1980-12-04 1982-06-12 Ricoh Co Ltd Method for electronic photography

Similar Documents

Publication Publication Date Title
JPS55147651A (en) Electrophotographic apparatus
US3599605A (en) Self-biasing development electrode for electrophotography
JPS54119929A (en) Developer and method of copying thereby
JPS57155553A (en) Electrostatic image developing method
US4466732A (en) Development system having a bounded electrical bias
JPS5486335A (en) Developing method for electrostatic latent image
JPS5532073A (en) Electrophotographic developing method
JPS5529834A (en) Electrophotographic developing apparatus
JPS57119366A (en) Developing method
JPS54122127A (en) Magnetic toner development process
US3615398A (en) Method for electrostatic copying including an improved process of cleaning the photoconductive surface
JPS54136339A (en) Developing apparatus
JPS54115233A (en) Reversal development process
JPS557769A (en) Electrostatic latent image developing method
JPS54147837A (en) Electrophotogaraphic developing method
JPS5267640A (en) Method for developing charge latent image in electronic photography
JPS55117172A (en) Developing device
JPS5589873A (en) Developing device for electronic copier
JPS6488554A (en) Electrophotographic developer
JPS5455442A (en) Magnetic brush developing device
US4499166A (en) Method of developing an electrostatic latent image uses magnetic developer
JPS5680080A (en) Electrophotographing device
JPS5517143A (en) Two color recording method
JPS5583058A (en) Electrostatic latent image development method
JPS5526517A (en) Magnetic brush developing device