JPS5789780A - Improvement of magnetic brush developing method - Google Patents

Improvement of magnetic brush developing method

Info

Publication number
JPS5789780A
JPS5789780A JP55165387A JP16538780A JPS5789780A JP S5789780 A JPS5789780 A JP S5789780A JP 55165387 A JP55165387 A JP 55165387A JP 16538780 A JP16538780 A JP 16538780A JP S5789780 A JPS5789780 A JP S5789780A
Authority
JP
Japan
Prior art keywords
toner
magnetic brush
brush
generation
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.)
Granted
Application number
JP55165387A
Other languages
Japanese (ja)
Other versions
JPS6356981B2 (en
Inventor
Akio Yanagi
Noriki Kawachi
Takashi Tejima
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP55165387A priority Critical patent/JPS5789780A/en
Publication of JPS5789780A publication Critical patent/JPS5789780A/en
Publication of JPS6356981B2 publication Critical patent/JPS6356981B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals

Abstract

PURPOSE:To prevent toner from scattering into a copying machine and to eliminate the generation of a brush mark without tailing, by providing a sealing means at the opening part of a developing device and by specifying the movement direction of a magnetic brush and the content of the toner in a developer. CONSTITUTION:The movement direction 17 of the magnetic brush of a magnetic brush developing device 1 is set opposite to the movement direction 14 of a photosensitive layer 12, and floating toner shielding walls 16a and 16c made of elastic bodies are provided at the photosensitive-layer introduction side end part and both side end parts of the opening part of the developing device. The rate of toner particles in a magnetic brush development area to magnetic carrier particles is set 20-150% greater than the amount of toner particles saturated and adsorbed to the magnetic carrier particles, thus performing development. Leakage through carriers due to excessive toner particles is prevented, and the generation of a brush mark is suppressed; and the said content results in that the generation of toner powder smoke, the dirtying of a background, the occurrence of tailing are also suppressed.
JP55165387A 1980-11-26 1980-11-26 Improvement of magnetic brush developing method Granted JPS5789780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55165387A JPS5789780A (en) 1980-11-26 1980-11-26 Improvement of magnetic brush developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55165387A JPS5789780A (en) 1980-11-26 1980-11-26 Improvement of magnetic brush developing method

Publications (2)

Publication Number Publication Date
JPS5789780A true JPS5789780A (en) 1982-06-04
JPS6356981B2 JPS6356981B2 (en) 1988-11-09

Family

ID=15811417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55165387A Granted JPS5789780A (en) 1980-11-26 1980-11-26 Improvement of magnetic brush developing method

Country Status (1)

Country Link
JP (1) JPS5789780A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107457U (en) * 1986-12-29 1988-07-11

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036133A (en) * 1973-07-24 1975-04-05
JPS53111738A (en) * 1977-03-11 1978-09-29 Toshiba Corp Developing device of magnetic brush type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036133A (en) * 1973-07-24 1975-04-05
JPS53111738A (en) * 1977-03-11 1978-09-29 Toshiba Corp Developing device of magnetic brush type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107457U (en) * 1986-12-29 1988-07-11

Also Published As

Publication number Publication date
JPS6356981B2 (en) 1988-11-09

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