JPS5752065A - Developing device with magnetic brush - Google Patents

Developing device with magnetic brush

Info

Publication number
JPS5752065A
JPS5752065A JP12708080A JP12708080A JPS5752065A JP S5752065 A JPS5752065 A JP S5752065A JP 12708080 A JP12708080 A JP 12708080A JP 12708080 A JP12708080 A JP 12708080A JP S5752065 A JPS5752065 A JP S5752065A
Authority
JP
Japan
Prior art keywords
developer
carrying member
hollow roller
thickness
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.)
Pending
Application number
JP12708080A
Other languages
Japanese (ja)
Inventor
Koji Sakamoto
Kazuo Kobayashi
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 JP12708080A priority Critical patent/JPS5752065A/en
Publication of JPS5752065A publication Critical patent/JPS5752065A/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
    • 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

Landscapes

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

Abstract

PURPOSE:To prevent blocking at a narrow clearance between a latent image carrier and a developer carrying member with the developer, by installing at least two developer carrying members and by thinning the thickness of a layer of the developer by changing the rotating speed of these carrying members. CONSTITUTION:The first developer carrying member constructed as the first hollow roller 6 is installed at a location facing to a developer port 5 of a developer tank 4. Moreover, the second developer carrying member constructed as the second hollow roller 7 is installed in parallel to the hollow roller 6. Then, rotating speeds v1 and v2 of each roller 6 and 7 are set to become v1<v2. In this way, the thickness A of the layer of developer to be carried to the surface of the first hollow roller is controlled and the thickness of the layer of the developer is made thinner than conventional ones. Thus it is prevented that the narrow space between the latent image carrier and the developer carrying member is blocked with the developer.
JP12708080A 1980-09-16 1980-09-16 Developing device with magnetic brush Pending JPS5752065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12708080A JPS5752065A (en) 1980-09-16 1980-09-16 Developing device with magnetic brush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12708080A JPS5752065A (en) 1980-09-16 1980-09-16 Developing device with magnetic brush

Publications (1)

Publication Number Publication Date
JPS5752065A true JPS5752065A (en) 1982-03-27

Family

ID=14951071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12708080A Pending JPS5752065A (en) 1980-09-16 1980-09-16 Developing device with magnetic brush

Country Status (1)

Country Link
JP (1) JPS5752065A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049372A (en) * 1983-08-30 1985-03-18 Fuji Xerox Co Ltd Developing device of copying machine
JPS6314269U (en) * 1986-07-11 1988-01-29
US4835565A (en) * 1986-06-11 1989-05-30 Ricoh Company, Ltd. Image developing device for electrophotography
JP2017167409A (en) * 2016-03-17 2017-09-21 京セラドキュメントソリューションズ株式会社 Developing device and image forming apparatus including the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049372A (en) * 1983-08-30 1985-03-18 Fuji Xerox Co Ltd Developing device of copying machine
JPH0513316B2 (en) * 1983-08-30 1993-02-22 Fuji Xerox Co Ltd
US4835565A (en) * 1986-06-11 1989-05-30 Ricoh Company, Ltd. Image developing device for electrophotography
JPS6314269U (en) * 1986-07-11 1988-01-29
JP2017167409A (en) * 2016-03-17 2017-09-21 京セラドキュメントソリューションズ株式会社 Developing device and image forming apparatus including the same

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