JPS57116373A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57116373A
JPS57116373A JP290781A JP290781A JPS57116373A JP S57116373 A JPS57116373 A JP S57116373A JP 290781 A JP290781 A JP 290781A JP 290781 A JP290781 A JP 290781A JP S57116373 A JPS57116373 A JP S57116373A
Authority
JP
Japan
Prior art keywords
magnetic toner
removing member
foreign
loop
foreign matter
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
JP290781A
Other languages
Japanese (ja)
Inventor
Shigekazu Enoki
Hiroharu Suzuki
Hajime Koyama
Toshio Kaneko
Hidekazu Akutsu
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP290781A priority Critical patent/JPS57116373A/en
Publication of JPS57116373A publication Critical patent/JPS57116373A/en
Pending 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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To improve copying quality by preventing the blocking of a doctor gap due to foreign matter contained in a high-resistance magnetic toner, by providing a foreign-matter removing member whose tip is formed in a loop shape. CONSTITUTION:A foreign-matter removing member 13 whose tips are formed in a loop shape is provided closely to a rotary sleeve 3. When high-resistance magnetic toner on the sleeve 3 is carried onto the removing member 13, the magnetic toner is napped by the notched part 9a of a permanent magnet 9. This magnetic toner, when passing by the removing member 13, passes through a loop freely, but fibrous foreign matter contained in the magnetic toner is brushed off by the loop parts. Therefore, the blocking of a doctor gap due to the foreign matter is prevented and copying quality is improved.
JP290781A 1981-01-12 1981-01-12 Developing device Pending JPS57116373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP290781A JPS57116373A (en) 1981-01-12 1981-01-12 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP290781A JPS57116373A (en) 1981-01-12 1981-01-12 Developing device

Publications (1)

Publication Number Publication Date
JPS57116373A true JPS57116373A (en) 1982-07-20

Family

ID=11542423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP290781A Pending JPS57116373A (en) 1981-01-12 1981-01-12 Developing device

Country Status (1)

Country Link
JP (1) JPS57116373A (en)

Similar Documents

Publication Publication Date Title
EP0390472A3 (en) A developing apparatus
JPS57116373A (en) Developing device
JPS5289923A (en) Cleaning of remaining toner in electrophotographic copier
JPS55149962A (en) Magnetic brush type developing device
JPS5343530A (en) Developing method
JPS56149078A (en) Cleaning device
JPS5770572A (en) Developing device for copying machine
JPS548533A (en) Toner for electrostatic charge developing
JPS5681867A (en) Magnetic brush developing device
JPS5393841A (en) Electrophotographic developing device
JPS5455442A (en) Magnetic brush developing device
JPS55105272A (en) Cleaning device
JPS5678858A (en) Magnet roll developing device
JPS56107274A (en) Developing device of electrostatic copier
JPS53135641A (en) Electrophotographic copier
JPS5660469A (en) Developing device
JPS5567777A (en) Cleaning brush for electrophotography
JPS552242A (en) Developing device
JPS5659269A (en) Electrostatic latent image developing device
JPS57197577A (en) Developer
JPS5722274A (en) Cleaning device in electrophotographic device
JPS5442152A (en) Magnetic brush developing device in dry type electrostatographic copier
JPS533341A (en) Electrophotographic copyer
JPS53129053A (en) Electrostatic image developing method
JPS5462835A (en) Magnetic brush developing device