JPS569771A - Magnetic brush developing device - Google Patents

Magnetic brush developing device

Info

Publication number
JPS569771A
JPS569771A JP8474879A JP8474879A JPS569771A JP S569771 A JPS569771 A JP S569771A JP 8474879 A JP8474879 A JP 8474879A JP 8474879 A JP8474879 A JP 8474879A JP S569771 A JPS569771 A JP S569771A
Authority
JP
Japan
Prior art keywords
developer
magnetic
roller
conveying
magnetic brush
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
JP8474879A
Other languages
Japanese (ja)
Other versions
JPS5930271B2 (en
Inventor
Isamu Komatsu
Masayasu Anzai
Hirotsugu Sawada
Kiyoshi Niinuma
Isao Fujimoto
Kunitoshi Nishimura
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.)
Koki Holdings Co Ltd
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Hitachi Koki 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 Hitachi Ltd, Nippon Telegraph and Telephone Corp, Hitachi Koki Co Ltd filed Critical Hitachi Ltd
Priority to JP8474879A priority Critical patent/JPS5930271B2/en
Publication of JPS569771A publication Critical patent/JPS569771A/en
Publication of JPS5930271B2 publication Critical patent/JPS5930271B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the leakage of the developer and make possible the perfect discharging of the deteriorated developer by controlling the developer passage between the spacially installed magnetic rolls for conveying developer and for forming magnetic brush by way of a freely turnable conveying member. CONSTITUTION:A predetermined amount of the developer which is uniformly stirred and mixed and is flowed down by an outflow rate control member 18 is conveyed along a non-magnetic sleeve 11 turnfing around the outside circumference of a stationary magnetic roller 10 and is pushed upward along a conveying member 9 after it has passed the conveying magnetic pole 10a. This causes the magnetic brush of the height corresponding to a shaping member 20 to be formed by the nonmagnetic sleeve 13 turning around the outside circumference of a magnetic roller 6 for forming magnetic brush intalled spacially from the roller 10, whereby a photosensitive drum 21 is subjected to development. Thence, the 2nd developing is accomplished by a similar roller 7, etc. On the other hand, if the member 9 is turned and a discharge port 3 is opened, the developer conveyed by the roller 10 is discharged, thus the leakage of the developer is perfectly prevented at the developing and the perfect discharging of the deteriorated developer may be done.
JP8474879A 1979-07-03 1979-07-03 magnetic brush developing device Expired JPS5930271B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8474879A JPS5930271B2 (en) 1979-07-03 1979-07-03 magnetic brush developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8474879A JPS5930271B2 (en) 1979-07-03 1979-07-03 magnetic brush developing device

Publications (2)

Publication Number Publication Date
JPS569771A true JPS569771A (en) 1981-01-31
JPS5930271B2 JPS5930271B2 (en) 1984-07-26

Family

ID=13839306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8474879A Expired JPS5930271B2 (en) 1979-07-03 1979-07-03 magnetic brush developing device

Country Status (1)

Country Link
JP (1) JPS5930271B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0418595Y2 (en) * 1985-03-08 1992-04-24
JPH0423574Y2 (en) * 1985-08-21 1992-06-02

Also Published As

Publication number Publication date
JPS5930271B2 (en) 1984-07-26

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