JPS53105237A - Electrophotographic developing device - Google Patents

Electrophotographic developing device

Info

Publication number
JPS53105237A
JPS53105237A JP1991077A JP1991077A JPS53105237A JP S53105237 A JPS53105237 A JP S53105237A JP 1991077 A JP1991077 A JP 1991077A JP 1991077 A JP1991077 A JP 1991077A JP S53105237 A JPS53105237 A JP S53105237A
Authority
JP
Japan
Prior art keywords
developing device
electrophotographic developing
developing
photosensitive body
expressivity
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
JP1991077A
Other languages
Japanese (ja)
Inventor
Seiichi Miyagawa
Susumu Tatsumi
Koji Sakamoto
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 JP1991077A priority Critical patent/JPS53105237A/en
Publication of JPS53105237A publication Critical patent/JPS53105237A/en
Pending legal-status Critical Current

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  • Developing For Electrophotography (AREA)

Abstract

PURPOSE: To achieve not only the higher speed of developing but also the improvement in gradation expressivity by applying bias voltages subsequently changing along the advancing direction of a photosensitive body to a plurality of developing rollers disposed along the photosensitive body in a dry system electrophotographic developing device.
COPYRIGHT: (C)1978,JPO&Japio
JP1991077A 1977-02-25 1977-02-25 Electrophotographic developing device Pending JPS53105237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1991077A JPS53105237A (en) 1977-02-25 1977-02-25 Electrophotographic developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991077A JPS53105237A (en) 1977-02-25 1977-02-25 Electrophotographic developing device

Publications (1)

Publication Number Publication Date
JPS53105237A true JPS53105237A (en) 1978-09-13

Family

ID=12012359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1991077A Pending JPS53105237A (en) 1977-02-25 1977-02-25 Electrophotographic developing device

Country Status (1)

Country Link
JP (1) JPS53105237A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028537A1 (en) * 1979-11-05 1981-05-13 Xerox Corporation Apparatus for developing a latent image and electrostatographic printing machine incorporating same
JPS5797551A (en) * 1980-12-11 1982-06-17 Ricoh Co Ltd Magnetic brush developing device
JPS6298382A (en) * 1985-10-25 1987-05-07 Hitachi Ltd Toner image recording device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028537A1 (en) * 1979-11-05 1981-05-13 Xerox Corporation Apparatus for developing a latent image and electrostatographic printing machine incorporating same
JPS5797551A (en) * 1980-12-11 1982-06-17 Ricoh Co Ltd Magnetic brush developing device
JPS6298382A (en) * 1985-10-25 1987-05-07 Hitachi Ltd Toner image recording device

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