JPS57135958A - Electrophotographic developing device - Google Patents

Electrophotographic developing device

Info

Publication number
JPS57135958A
JPS57135958A JP56021134A JP2113481A JPS57135958A JP S57135958 A JPS57135958 A JP S57135958A JP 56021134 A JP56021134 A JP 56021134A JP 2113481 A JP2113481 A JP 2113481A JP S57135958 A JPS57135958 A JP S57135958A
Authority
JP
Japan
Prior art keywords
screen
developer
toner
holding
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
JP56021134A
Other languages
Japanese (ja)
Inventor
Yasuo Aozuka
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 Holdings Corp
Original Assignee
Fuji Photo Film 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 Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP56021134A priority Critical patent/JPS57135958A/en
Publication of JPS57135958A publication Critical patent/JPS57135958A/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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer

Landscapes

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

Abstract

PURPOSE:To always feed a developer to a developing device without spilling it when a copying machine moves, by providing an opening with a magnetized screen, and holding the developer magnetically with this screen. CONSTITUTION:A developer holder 1 having magnetized screen 5 in the opening opposite a photosensitive drum 10. A one-component or two-component type magnetic developer T is contained in the holder 1. A toner-holding power of toner by the magnetic force of the screen 5 is set weaker than the toner attraction due to the electrostatic field of an electrostatic latent image 11. Stripes of magnetic materials or whatever form capable of holding the developer magnetically may be usable in place of a screen.
JP56021134A 1981-02-16 1981-02-16 Electrophotographic developing device Pending JPS57135958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56021134A JPS57135958A (en) 1981-02-16 1981-02-16 Electrophotographic developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56021134A JPS57135958A (en) 1981-02-16 1981-02-16 Electrophotographic developing device

Publications (1)

Publication Number Publication Date
JPS57135958A true JPS57135958A (en) 1982-08-21

Family

ID=12046418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56021134A Pending JPS57135958A (en) 1981-02-16 1981-02-16 Electrophotographic developing device

Country Status (1)

Country Link
JP (1) JPS57135958A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995547A (en) * 1982-11-25 1984-06-01 Mita Ind Co Ltd New developing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5995547A (en) * 1982-11-25 1984-06-01 Mita Ind Co Ltd New developing method

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