JPS552242A - Developing device - Google Patents

Developing device

Info

Publication number
JPS552242A
JPS552242A JP7449678A JP7449678A JPS552242A JP S552242 A JPS552242 A JP S552242A JP 7449678 A JP7449678 A JP 7449678A JP 7449678 A JP7449678 A JP 7449678A JP S552242 A JPS552242 A JP S552242A
Authority
JP
Japan
Prior art keywords
magnetic
magnet
developing
drum
latent image
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
JP7449678A
Other languages
Japanese (ja)
Inventor
Yoshio Iino
Takayuki Kokai
Masakatsu Horie
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7449678A priority Critical patent/JPS552242A/en
Publication of JPS552242A publication Critical patent/JPS552242A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To increase developing ability with the simple constitution of installing a magnet in the latent image drum of a magnetic brush developing device. CONSTITUTION:A magnet 4 of opposite polarity is disposed on the inner side of a latent image drum 1 in opposition to the magnetic poles of a developing magnetic roller 2. The magnet in the magnetic roller 2 is held stationary and the outside circumferential portion of the magnetic roller rotates. By the effect of the magnet 4 placed in the latent image drum 1, the magnetic field at the contact part of the magnetic brush 5 and drum 1 increases and the state of the magnetic field changes, thereby increasing the area where developing material 6 contacts the drum 1, i.e., making earing of the brush 5 better and increasing developing ability.
JP7449678A 1978-06-20 1978-06-20 Developing device Pending JPS552242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7449678A JPS552242A (en) 1978-06-20 1978-06-20 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7449678A JPS552242A (en) 1978-06-20 1978-06-20 Developing device

Publications (1)

Publication Number Publication Date
JPS552242A true JPS552242A (en) 1980-01-09

Family

ID=13548962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7449678A Pending JPS552242A (en) 1978-06-20 1978-06-20 Developing device

Country Status (1)

Country Link
JP (1) JPS552242A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836753U (en) * 1981-08-31 1983-03-10 株式会社リコー Copying machine developing device
JPS60181754A (en) * 1984-02-29 1985-09-17 Mita Ind Co Ltd Development method using binary type developer
JPS61270777A (en) * 1985-05-27 1986-12-01 Hitachi Ltd Electrophotographic device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836753U (en) * 1981-08-31 1983-03-10 株式会社リコー Copying machine developing device
JPS60181754A (en) * 1984-02-29 1985-09-17 Mita Ind Co Ltd Development method using binary type developer
JPH0511312B2 (en) * 1984-02-29 1993-02-15 Mita Industrial Co Ltd
JPS61270777A (en) * 1985-05-27 1986-12-01 Hitachi Ltd Electrophotographic device

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