JPS5689762A - Developing device of electronic copying machine - Google Patents

Developing device of electronic copying machine

Info

Publication number
JPS5689762A
JPS5689762A JP16682979A JP16682979A JPS5689762A JP S5689762 A JPS5689762 A JP S5689762A JP 16682979 A JP16682979 A JP 16682979A JP 16682979 A JP16682979 A JP 16682979A JP S5689762 A JPS5689762 A JP S5689762A
Authority
JP
Japan
Prior art keywords
developer
sleeves
magnetic poles
dripping
developing device
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
JP16682979A
Other languages
Japanese (ja)
Inventor
Toru Yamazaki
Yusuke Ogita
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP16682979A priority Critical patent/JPS5689762A/en
Publication of JPS5689762A publication Critical patent/JPS5689762A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To prevent a developer from dripping to a photoreceptor drum, by providing magnetic poles of different polarities opposite to each other in sleeves rotating in reverse directions each other and by providing a freely rotatable roll between sleeves.
CONSTITUTION: Two developing rolls 6 and 9 with fixed magnets 4 and 7 respectively are provided in sleeves 5 and 8 rotating in reverse directions each other. Magnetic poles N2 and S3 of different polarities are arranged on respective fixed magnets so that said N2 and N3 oppose to each other in the region where both rolls are arranged close to each other. A freely rotatable roll 14 is brought into contact with the developer surface 15 to be carried slightly and is arranged in the space between a photoreceptor drum 1 and the face connecting these magnetic poles. Consequently, since roll 14 is rotated in the arrow direction by the stream of the developer, the clouded toner is cleaned out even if it sticks. As the result, the developer is prevented from dripping to drum 1.
COPYRIGHT: (C)1981,JPO&Japio
JP16682979A 1979-12-24 1979-12-24 Developing device of electronic copying machine Pending JPS5689762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16682979A JPS5689762A (en) 1979-12-24 1979-12-24 Developing device of electronic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16682979A JPS5689762A (en) 1979-12-24 1979-12-24 Developing device of electronic copying machine

Publications (1)

Publication Number Publication Date
JPS5689762A true JPS5689762A (en) 1981-07-21

Family

ID=15838425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16682979A Pending JPS5689762A (en) 1979-12-24 1979-12-24 Developing device of electronic copying machine

Country Status (1)

Country Link
JP (1) JPS5689762A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013156516A (en) * 2012-01-31 2013-08-15 Fuji Xerox Co Ltd Developing device and image forming apparatus using the same
JP2013171166A (en) * 2012-02-21 2013-09-02 Fuji Xerox Co Ltd Development device, and image formation apparatus using the same
JP2014186246A (en) * 2013-03-25 2014-10-02 Fuji Xerox Co Ltd Developing device and image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013156516A (en) * 2012-01-31 2013-08-15 Fuji Xerox Co Ltd Developing device and image forming apparatus using the same
JP2013171166A (en) * 2012-02-21 2013-09-02 Fuji Xerox Co Ltd Development device, and image formation apparatus using the same
JP2014186246A (en) * 2013-03-25 2014-10-02 Fuji Xerox Co Ltd Developing device and image forming apparatus

Similar Documents

Publication Publication Date Title
JPS55103565A (en) Plural sheets copying apparatus
JPS5689762A (en) Developing device of electronic copying machine
JPS5289923A (en) Cleaning of remaining toner in electrophotographic copier
JPS55113073A (en) Magnetic brush developing device
JPS5674283A (en) Cleaning device in electrostatic reproducing device
JPS55138768A (en) Developing device for magnetic toner
JPS54158934A (en) Developing device
JPS5730859A (en) Magnetic brush developing device
JPS5298534A (en) Copying machine
JPS5660469A (en) Developing device
JPS53116161A (en) Electrophotographic copier for multicolor image
JPS5434245A (en) Magnetic brush developing device
JPS5635162A (en) Electrostatic recorder
JPS5512949A (en) Device for developing electrostatic latent image
JPS5630157A (en) Magnetic brush developing device
JPS55100577A (en) Developing device
JPS5442152A (en) Magnetic brush developing device in dry type electrostatographic copier
JPS5394942A (en) Liquid developing device in transfer type electrophotographic copying machine
JPS5689763A (en) Magnetic brush developing device
JPS5584960A (en) Magnetic brush developing device
JPS5553338A (en) Developing method of electrostatic latent image
JPS55157768A (en) Magnetic latent image developing device
JPS55569A (en) Electrophotographic developing device
JPS53129053A (en) Electrostatic image developing method
JPS5528030A (en) Developing device in electrophotographic copier