JPS56106252A - Developing method - Google Patents

Developing method

Info

Publication number
JPS56106252A
JPS56106252A JP862480A JP862480A JPS56106252A JP S56106252 A JPS56106252 A JP S56106252A JP 862480 A JP862480 A JP 862480A JP 862480 A JP862480 A JP 862480A JP S56106252 A JPS56106252 A JP S56106252A
Authority
JP
Japan
Prior art keywords
toner
cylinder
friction
image
resin layer
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.)
Granted
Application number
JP862480A
Other languages
Japanese (ja)
Other versions
JPS644171B2 (en
Inventor
Yasuo Mihashi
Ichiro Osaki
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.)
Canon Inc
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP862480A priority Critical patent/JPS56106252A/en
Publication of JPS56106252A publication Critical patent/JPS56106252A/en
Publication of JPS644171B2 publication Critical patent/JPS644171B2/ja
Granted 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration
    • G03G15/0928—Details concerning the magnetic brush roller structure, e.g. magnet configuration relating to the shell, e.g. structure, composition

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To form an always high quality image even in making a large number of copies in the method for developing an electrostatic latent image using a one- component type insulating toner charged by friction, by providing a cellulosic resin layer on the surface of a material for imparting friction charge to said toner. CONSTITUTION:Nonmagnetic cylinder 4b is rotated in the arrow direction, one- component type insulating magnetic developer (toner) 11 fed from developer container 12 is spread on the surface of cylinder 4b, is friction-charged simultaneously to a reverse polarity to that of an electrostatic latent image, leveled with doctor blade 10 to a given thickness, and toner 11 is transferred to the electrostatic image on image bearing surface 1. Inside the cylinder 4b fixed multipermanent magnets 9 are provided. In said apparatus, a cellulosic resin layer of about 10mum thickness, such as cellulose acetate-butyrate is formed on the surface of nonmagnetic cylinder 4b to cause friction charging.
JP862480A 1980-01-28 1980-01-28 Developing method Granted JPS56106252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP862480A JPS56106252A (en) 1980-01-28 1980-01-28 Developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP862480A JPS56106252A (en) 1980-01-28 1980-01-28 Developing method

Publications (2)

Publication Number Publication Date
JPS56106252A true JPS56106252A (en) 1981-08-24
JPS644171B2 JPS644171B2 (en) 1989-01-24

Family

ID=11698094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP862480A Granted JPS56106252A (en) 1980-01-28 1980-01-28 Developing method

Country Status (1)

Country Link
JP (1) JPS56106252A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073649A (en) * 1983-09-30 1985-04-25 Toshiba Corp Developing device
JPS60146268A (en) * 1984-01-10 1985-08-01 Konishiroku Photo Ind Co Ltd Developing device
JPH0432852A (en) * 1990-05-30 1992-02-04 Mita Ind Co Ltd Electrophotographic developing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
US3893418A (en) * 1974-05-30 1975-07-08 Xerox Corp Xerographic developing apparatus
JPS5149028A (en) * 1974-10-25 1976-04-27 Hitachi Ltd
JPS5323638A (en) * 1976-08-18 1978-03-04 Esukofuotsuto Risaachi As Toner powder spreading device for electrostatic copying machine
JPS5443036A (en) * 1977-09-10 1979-04-05 Canon Inc Electrostatic image developing device
JPS54108634A (en) * 1978-02-14 1979-08-25 Canon Inc Electrostatic image developing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045639A (en) * 1973-08-27 1975-04-23
US3893418A (en) * 1974-05-30 1975-07-08 Xerox Corp Xerographic developing apparatus
JPS5149028A (en) * 1974-10-25 1976-04-27 Hitachi Ltd
JPS5323638A (en) * 1976-08-18 1978-03-04 Esukofuotsuto Risaachi As Toner powder spreading device for electrostatic copying machine
JPS5443036A (en) * 1977-09-10 1979-04-05 Canon Inc Electrostatic image developing device
JPS54108634A (en) * 1978-02-14 1979-08-25 Canon Inc Electrostatic image developing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073649A (en) * 1983-09-30 1985-04-25 Toshiba Corp Developing device
JPS60146268A (en) * 1984-01-10 1985-08-01 Konishiroku Photo Ind Co Ltd Developing device
JPH0432852A (en) * 1990-05-30 1992-02-04 Mita Ind Co Ltd Electrophotographic developing device

Also Published As

Publication number Publication date
JPS644171B2 (en) 1989-01-24

Similar Documents

Publication Publication Date Title
GB828188A (en) Process and apparatus for applying developer powder to photo-conductive insulating material
JPS55118049A (en) Developing method
GB1376278A (en) Electro photographic copying methods
GB1481332A (en) Method for the development of electrostatic images
JPS5486335A (en) Developing method for electrostatic latent image
JPS57185052A (en) Developing method
JPS5699350A (en) Developing method
GB827291A (en) Method and apparatus for developing an electrostatic latent image
US4288515A (en) Process for reversal development using inductively chargeable magnetic powdery developer
JPS576856A (en) Developing method
JPS56106252A (en) Developing method
JPS54136339A (en) Developing apparatus
JPS55137551A (en) Electrophotographic dry type developing device
JPS5687061A (en) Magnetic toner two-color developing method
JPS5677870A (en) Developing method
JPS56138757A (en) Dry type developing method of electrostatic latent image
JPS56107275A (en) Developing method
JPS56137372A (en) Developing device
JPS557769A (en) Electrostatic latent image developing method
JPS57130051A (en) Developing method
JPS5651756A (en) Developing method
JPS5647051A (en) Developing method in multiple sheet copying method
JPS60103368A (en) Developing device of electrophotographic copying machine
JPS5670559A (en) Developing method
JPS5778049A (en) Development method