JPS56162768A - Method and device for electrostatic image development - Google Patents

Method and device for electrostatic image development

Info

Publication number
JPS56162768A
JPS56162768A JP6734580A JP6734580A JPS56162768A JP S56162768 A JPS56162768 A JP S56162768A JP 6734580 A JP6734580 A JP 6734580A JP 6734580 A JP6734580 A JP 6734580A JP S56162768 A JPS56162768 A JP S56162768A
Authority
JP
Japan
Prior art keywords
developer
toner
vibrations
sleeve
chamber
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
JP6734580A
Other languages
Japanese (ja)
Inventor
Hatsuo Tajima
Nagao Hosono
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP6734580A priority Critical patent/JPS56162768A/en
Publication of JPS56162768A publication Critical patent/JPS56162768A/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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
    • 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
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade

Landscapes

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

Abstract

PURPOSE:To coat a developer on a developer holding body to uniform thickness and obtain the good developer free from any photographic fog by scooping up the developer from a developer storage part onto the holding body, and giving vibrations only to the developer of the scooping part thereby activating the developer. CONSTITUTION:While a nonmagnetic sleeve 2 opposing to an electrostatic latent image carrying body 1 is being rotated in the arrow (a) direction, the one component type nonmagnetic toner 3 from a hopper 4 is fed little by little into a coating chamber 4a by a supplying member 10. A member 6 which consists of a plate 6b provided with 10-20mu ruggedness and gives vibrations to the toner 3 is provided to the leading end of the advance and retreat bar 6a penetrating through the wall of the chamber 4. The member 6 is given vibrations by an electromagnet 7a provided in a chamber 70 and a permanent magnet 6c attached to the end part of the member 6. Sufficient frictional charge is applied by vibrations to only the toner 3 scooped up in this way, whereby the cohesion of the toner particles 3 is eliminted and the toner controlled to uniform thickness by the clearance 5 between the sleeve 2 and a semicirculr arc-shaed wall covering the same is supplied to the photoreceptor 1. The residual toner on the sleeve 2 is removed by a cleaning blade 10.
JP6734580A 1980-05-20 1980-05-20 Method and device for electrostatic image development Pending JPS56162768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6734580A JPS56162768A (en) 1980-05-20 1980-05-20 Method and device for electrostatic image development

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6734580A JPS56162768A (en) 1980-05-20 1980-05-20 Method and device for electrostatic image development

Publications (1)

Publication Number Publication Date
JPS56162768A true JPS56162768A (en) 1981-12-14

Family

ID=13342332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6734580A Pending JPS56162768A (en) 1980-05-20 1980-05-20 Method and device for electrostatic image development

Country Status (1)

Country Link
JP (1) JPS56162768A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6240479A (en) * 1985-08-19 1987-02-21 Ricoh Co Ltd Developing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6240479A (en) * 1985-08-19 1987-02-21 Ricoh Co Ltd Developing device

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