JPS569766A - Developing device - Google Patents

Developing device

Info

Publication number
JPS569766A
JPS569766A JP8545879A JP8545879A JPS569766A JP S569766 A JPS569766 A JP S569766A JP 8545879 A JP8545879 A JP 8545879A JP 8545879 A JP8545879 A JP 8545879A JP S569766 A JPS569766 A JP S569766A
Authority
JP
Japan
Prior art keywords
toner
transport path
developer
circulatory transport
developing
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
JP8545879A
Other languages
Japanese (ja)
Inventor
Toshio Kawakubo
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 JP8545879A priority Critical patent/JPS569766A/en
Publication of JPS569766A publication Critical patent/JPS569766A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE: To prevent the developer from depositing on the inside surface of a conveying path and assure the stable circulation of the developer by discharging the charged charge of the developer moving in the circulatory transport path right after the development in a developing device which circulates the dry type developer of electrostatic latent images by carrying the same in air flow.
CONSTITUTION: The remainder of the dry type toner used in a developing chamber 2 for the purpose of developing of the electrostatic latent images on the surface of a dielectric drum 1 is carried together with air in a circulatory transport path 4 by the sucking force of a pump 5. Before the toner is separated from the air in a filter 6, an AC electric field is applied to the toner in a destaticization device 10 right after the development to neutralize the charged charge of the toner thereby preventing the toner from electrostatically depositing on the inside surface of the circulatory transport path 4. The destaticization device 10 consists of two opposing parallel electrode plates 11, 12 and is disposed in the pipe forming the circulatory transport path 4. AC voltage is applied from an AC power source 13 to the electrode plates 11, 12.
COPYRIGHT: (C)1981,JPO&Japio
JP8545879A 1979-07-05 1979-07-05 Developing device Pending JPS569766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8545879A JPS569766A (en) 1979-07-05 1979-07-05 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8545879A JPS569766A (en) 1979-07-05 1979-07-05 Developing device

Publications (1)

Publication Number Publication Date
JPS569766A true JPS569766A (en) 1981-01-31

Family

ID=13859429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8545879A Pending JPS569766A (en) 1979-07-05 1979-07-05 Developing device

Country Status (1)

Country Link
JP (1) JPS569766A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04105158U (en) * 1991-02-22 1992-09-10 三菱レイヨン株式会社 Ring for faucet fittings
JP2011039249A (en) * 2009-08-10 2011-02-24 Ricoh Co Ltd Developing device and image forming apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04105158U (en) * 1991-02-22 1992-09-10 三菱レイヨン株式会社 Ring for faucet fittings
JP2011039249A (en) * 2009-08-10 2011-02-24 Ricoh Co Ltd Developing device and image forming apparatus

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