JPS52105832A - Developing apparatus - Google Patents

Developing apparatus

Info

Publication number
JPS52105832A
JPS52105832A JP2220376A JP2220376A JPS52105832A JP S52105832 A JPS52105832 A JP S52105832A JP 2220376 A JP2220376 A JP 2220376A JP 2220376 A JP2220376 A JP 2220376A JP S52105832 A JPS52105832 A JP S52105832A
Authority
JP
Japan
Prior art keywords
developing
face
pole portion
developing apparatus
magnetic pole
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
JP2220376A
Other languages
Japanese (ja)
Inventor
Hisayoshi Takenaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP2220376A priority Critical patent/JPS52105832A/en
Publication of JPS52105832A publication Critical patent/JPS52105832A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE: To accomplish the copying operation of multiple colors in the system, in which the developing powders are transferred to a magnet roll by a magnetic force, by arranging a magnetic pole portion to face an electrostatic latent image, during the developing operation, but a non-magnetic pole portion to face the same during the non-developing operation.
COPYRIGHT: (C)1977,JPO&Japio
JP2220376A 1976-03-03 1976-03-03 Developing apparatus Pending JPS52105832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2220376A JPS52105832A (en) 1976-03-03 1976-03-03 Developing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2220376A JPS52105832A (en) 1976-03-03 1976-03-03 Developing apparatus

Publications (1)

Publication Number Publication Date
JPS52105832A true JPS52105832A (en) 1977-09-05

Family

ID=12076225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2220376A Pending JPS52105832A (en) 1976-03-03 1976-03-03 Developing apparatus

Country Status (1)

Country Link
JP (1) JPS52105832A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188560A (en) * 1985-02-16 1986-08-22 Konishiroku Photo Ind Co Ltd Multi-color image forming device
JPH01152481A (en) * 1988-06-08 1989-06-14 Mita Ind Co Ltd Magnetic brush developing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61188560A (en) * 1985-02-16 1986-08-22 Konishiroku Photo Ind Co Ltd Multi-color image forming device
JPH01152481A (en) * 1988-06-08 1989-06-14 Mita Ind Co Ltd Magnetic brush developing device
JPH0423270B2 (en) * 1988-06-08 1992-04-21 Mita Industrial Co Ltd

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