JPS62112169A - Developing method - Google Patents

Developing method

Info

Publication number
JPS62112169A
JPS62112169A JP25231685A JP25231685A JPS62112169A JP S62112169 A JPS62112169 A JP S62112169A JP 25231685 A JP25231685 A JP 25231685A JP 25231685 A JP25231685 A JP 25231685A JP S62112169 A JPS62112169 A JP S62112169A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
electric field
carrying body
toner particles
alternating electric
developing part
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
JP25231685A
Inventor
Norihisa Hoshika
Atsushi Hosoi
Hiroshi Tajika
Hatsuo Tajima
Masaaki Yamaji
Original Assignee
Canon Inc
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

Links

Abstract

PURPOSE: To permit the formation of a developed image with a high image density by forming an alternating electric field generating means for forming the alternating electric field to transfer the toner particles deposited on the surface of a developer carrying member conveyed to a developing part to an electrostatic latent image carrying body in the developing part and specifying the rotating speed of the developer carrying body then making development.
CONSTITUTION: This device has the 2nd magnetic field generating means 23 positioned on the upper stream of a developer controlling member 24 with respect to the rotating direction of the developer carrying body 22 and the alternating electric field forming means to form the alternating electric field to transfer the toner particles deposited on the surface of the developer carrying member conveyed to the developing part to the electrostatic latent image carrying body in the developing part. The development is executed by impressing the alternating electric field to the toner particles 28 sticking to the surface of the magnetic particles 27 and the toner particles sticking to the surface of the developer carrying body 22 while the rotating speed of the body 22 is controlled to the speed substantially equal to the speed 1.5W0.8 times the rotating speed of the image carrying body 1. Then, just the slight magnetic particles exist in addition to the toner particles in the developing part and maintain a coarse state, i.e., form naps of the coarse state under the influence of magnetic power. The developing characteristic is improved by the effect thereof.
COPYRIGHT: (C)1987,JPO&Japio
JP25231685A 1985-11-11 1985-11-11 Developing method Pending JPS62112169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25231685A JPS62112169A (en) 1985-11-11 1985-11-11 Developing method

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP25231685A JPS62112169A (en) 1985-11-11 1985-11-11 Developing method
DE19863689887 DE3689887T2 (en) 1985-09-17 1986-09-17 Development method and apparatus.
EP19860307177 EP0219233B1 (en) 1985-09-17 1986-09-17 Developing method and apparatus
EP19890122280 EP0364007B1 (en) 1985-09-17 1986-09-17 Developing method and apparatus
DE19863650246 DE3650246D1 (en) 1985-09-17 1986-09-17 Development method and apparatus.
DE19863683584 DE3683584D1 (en) 1985-09-17 1986-09-17 Development method and apparatus.
DE19863650246 DE3650246T2 (en) 1985-09-17 1986-09-17 Development method and apparatus.
EP19900200219 EP0371011B1 (en) 1985-09-17 1986-09-17 Developing method and apparatus
DE19863689887 DE3689887D1 (en) 1985-09-17 1986-09-17 Development method and apparatus.
US07257164 US4933254A (en) 1985-09-17 1988-10-13 Method and apparatus for transferring toner from carrying member to image bearing member using chains of magnetic particles
US08445716 US5574545A (en) 1985-09-02 1995-05-22 Method for transferring toner from developer carrying member to image bearing member using chains of magnetic particles formed on developer carrying member and contacting image bearing member, and alternating electric field

Publications (1)

Publication Number Publication Date
JPS62112169A true true JPS62112169A (en) 1987-05-23

Family

ID=17235555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25231685A Pending JPS62112169A (en) 1985-11-11 1985-11-11 Developing method

Country Status (1)

Country Link
JP (1) JPS62112169A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120042A (en) * 1979-03-08 1980-09-16 Canon Inc Developing method and device
JPS58108565A (en) * 1981-12-22 1983-06-28 Konishiroku Photo Ind Co Ltd Developing device
JPS5967565A (en) * 1982-10-08 1984-04-17 Minolta Camera Co Ltd Electrostatic latent image developing method
JPS59121056A (en) * 1982-12-27 1984-07-12 Hitachi Metals Ltd Developing method
JPS59154470A (en) * 1983-02-23 1984-09-03 Canon Inc Method of reversing development

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120042A (en) * 1979-03-08 1980-09-16 Canon Inc Developing method and device
JPS58108565A (en) * 1981-12-22 1983-06-28 Konishiroku Photo Ind Co Ltd Developing device
JPS5967565A (en) * 1982-10-08 1984-04-17 Minolta Camera Co Ltd Electrostatic latent image developing method
JPS59121056A (en) * 1982-12-27 1984-07-12 Hitachi Metals Ltd Developing method
JPS59154470A (en) * 1983-02-23 1984-09-03 Canon Inc Method of reversing development

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