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JPS64971A - Developing device - Google Patents

Developing device

Info

Publication number
JPS64971A
JPS64971A JP62156010A JP15601087A JPS64971A JP S64971 A JPS64971 A JP S64971A JP 62156010 A JP62156010 A JP 62156010A JP 15601087 A JP15601087 A JP 15601087A JP S64971 A JPS64971 A JP S64971A
Authority
JP
Japan
Prior art keywords
power transmission
driving
transmission connecting
disconnecting
enabled
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
JP62156010A
Other languages
Japanese (ja)
Other versions
JPH01971A (en
Inventor
Susumu Wagi
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 JP62156010A priority Critical patent/JPS64971A/en
Publication of JPH01971A publication Critical patent/JPH01971A/en
Publication of JPS64971A publication Critical patent/JPS64971A/en
Pending legal-status Critical Current

Links

Landscapes

  • Color Electrophotography (AREA)

Abstract

PURPOSE: To simplify a device and to improve the reliability to switching of forward and backward revolutions by providing a piece of transmission connecting/disconnecting member (clutch) to each developing sleeve and executing the transmission driving to the clutches by a piece of motor.
CONSTITUTION: Power transmission means are respectively provided to the respective rotary shafts of the developing sleeves 1AW3A and the single power transmission connecting/disconnection means MC1WMC3 are corresponded to these power transmission means. These power transmission connecting/ disconnecting means are connected commonly to the single driving source 15 which can rotate forward and backward. Namely, the driving control of the plural developing sleeves is enabled by decreasing the number of the power transmission connecting/disconnecting means. The driving transmission with the simplified driving construction is thereby enabled without degrading the reliability.
COPYRIGHT: (C)1989,JPO&Japio
JP62156010A 1987-06-23 1987-06-23 Developing device Pending JPS64971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156010A JPS64971A (en) 1987-06-23 1987-06-23 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156010A JPS64971A (en) 1987-06-23 1987-06-23 Developing device

Publications (2)

Publication Number Publication Date
JPH01971A JPH01971A (en) 1989-01-05
JPS64971A true JPS64971A (en) 1989-01-05

Family

ID=15618351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156010A Pending JPS64971A (en) 1987-06-23 1987-06-23 Developing device

Country Status (1)

Country Link
JP (1) JPS64971A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387769A (en) * 1989-08-30 1991-04-12 Konica Corp Development driving device for color image forming device
JPH0387770A (en) * 1989-08-30 1991-04-12 Konica Corp Development driving device for color image forming device
EP0509726A2 (en) * 1991-04-15 1992-10-21 Canon Kabushiki Kaisha Image forming apparatus
US6292641B1 (en) 1997-07-28 2001-09-18 Ricoh Company, Ltd. Image forming apparatus selectively operating one of a plurality of developing units and a method for controlling a switching operation for the developing units

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387769A (en) * 1989-08-30 1991-04-12 Konica Corp Development driving device for color image forming device
JPH0387770A (en) * 1989-08-30 1991-04-12 Konica Corp Development driving device for color image forming device
EP0509726A2 (en) * 1991-04-15 1992-10-21 Canon Kabushiki Kaisha Image forming apparatus
US5495327A (en) * 1991-04-15 1996-02-27 Canon Kabushiki Kaisha Image forming apparatus
US6292641B1 (en) 1997-07-28 2001-09-18 Ricoh Company, Ltd. Image forming apparatus selectively operating one of a plurality of developing units and a method for controlling a switching operation for the developing units

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