JPS61219975A - Developing device - Google Patents

Developing device

Info

Publication number
JPS61219975A
JPS61219975A JP6147785A JP6147785A JPS61219975A JP S61219975 A JPS61219975 A JP S61219975A JP 6147785 A JP6147785 A JP 6147785A JP 6147785 A JP6147785 A JP 6147785A JP S61219975 A JPS61219975 A JP S61219975A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
developing device
developing
device
arm
instance
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
JP6147785A
Inventor
Junji Watanabe
Original Assignee
Toshiba Corp
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 simplify the structure of the titled device by constituting the said device so that the first and the second developing devices are moved selectively by a moving means, and driven selectively by a driving means. CONSTITUTION:The first and the second developing devices 23, 24 are moved selectively by an arm (moving means) 36, and driven selectively by gears (driving means) 42-44. For instance, when the arm 36 is turned clockwise, the developing device 24 is pressed through a spring 39 by its lower end part, and the developing device 24 advances along a guide rail, and stops, when its pin 32 abuts on a V-groove 34 of a frame 35. In this case, the developing device 23 is drawn through a spring 38 and moved backward. Subsequently, a gear 41 of a revolving shaft 26a of a developing roller 26 of a developing device 2 is engaged with a gear 44 of a body frame 33 side. In this way, the roller 26 is rotated, a magnetic brush of, for instance, a black toner 30, which has been formed on its peripheral surface is slid and brought into contact with a photosensitive drum 2, and black development is executed. On the other hand, when the arm 36 is turned counterclockwise, for instance, red development can be executed by the developing device 23.
JP6147785A 1985-03-26 1985-03-26 Developing device Pending JPS61219975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6147785A JPS61219975A (en) 1985-03-26 1985-03-26 Developing device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6147785A JPS61219975A (en) 1985-03-26 1985-03-26 Developing device
US4710016B1 US4710016B1 (en) 1985-03-26 1986-03-03 Developing apparatus
DE19863609129 DE3609129C2 (en) 1985-03-26 1986-03-19

Publications (1)

Publication Number Publication Date
JPS61219975A true true JPS61219975A (en) 1986-09-30

Family

ID=13172183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6147785A Pending JPS61219975A (en) 1985-03-26 1985-03-26 Developing device

Country Status (1)

Country Link
JP (1) JPS61219975A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211880A (en) * 1985-07-09 1987-01-20 Mita Ind Co Ltd Developing device for electrophotography
JPS6227774A (en) * 1985-07-27 1987-02-05 Mita Ind Co Ltd Electrophotographic developing device
US4860049A (en) * 1987-04-30 1989-08-22 Kabushiki Kaisha Toshiba Image forming apparatus
JPH0476566A (en) * 1990-07-19 1992-03-11 Canon Inc Color image forming device
US5119137A (en) * 1989-03-24 1992-06-02 Kabushiki Kaisha Toshiba Structure and method of mounting recording units in electrophotographic recording apparatus
EP0679959A2 (en) * 1994-04-28 1995-11-02 Canon Kabushiki Kaisha Developing means frame, process cartridge and image forming apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6211880A (en) * 1985-07-09 1987-01-20 Mita Ind Co Ltd Developing device for electrophotography
JPS6227774A (en) * 1985-07-27 1987-02-05 Mita Ind Co Ltd Electrophotographic developing device
US4860049A (en) * 1987-04-30 1989-08-22 Kabushiki Kaisha Toshiba Image forming apparatus
US5119137A (en) * 1989-03-24 1992-06-02 Kabushiki Kaisha Toshiba Structure and method of mounting recording units in electrophotographic recording apparatus
JPH0476566A (en) * 1990-07-19 1992-03-11 Canon Inc Color image forming device
EP0679959A2 (en) * 1994-04-28 1995-11-02 Canon Kabushiki Kaisha Developing means frame, process cartridge and image forming apparatus
EP0679959A3 (en) * 1994-04-28 1997-11-19 Canon Kabushiki Kaisha Developing means frame, process cartridge and image forming apparatus
US5815644A (en) * 1994-04-28 1998-09-29 Canon Kabushiki Kaisha Developing frame, process cartridge and image forming apparatus

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