JPS57190976A - Electrophotographic developing device - Google Patents

Electrophotographic developing device

Info

Publication number
JPS57190976A
JPS57190976A JP7593881A JP7593881A JPS57190976A JP S57190976 A JPS57190976 A JP S57190976A JP 7593881 A JP7593881 A JP 7593881A JP 7593881 A JP7593881 A JP 7593881A JP S57190976 A JPS57190976 A JP S57190976A
Authority
JP
Japan
Prior art keywords
toner
width
sleeve
magnetic pole
roll
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
JP7593881A
Other languages
Japanese (ja)
Inventor
Yoshisuke Takekida
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP7593881A priority Critical patent/JPS57190976A/en
Publication of JPS57190976A publication Critical patent/JPS57190976A/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
    • G03G15/0921—Details concerning the magnetic brush roller structure, e.g. magnet configuration

Landscapes

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

Abstract

PURPOSE:To give the vibration to the developer toner and to increase the image quality, by varying the width of the magnetic pole for the magnet of a magnetic roll in a development sleeve. CONSTITUTION:The width of the magnetic pole is varied for the magnet of a magnetic roll 6 which turns at a high speed in a development sleeve 7. As a result, the toner 3 which sticks on the surface of the sleeve 7 from a hopper 4 passes between the sleeve 7 and a photoreceptor 1 and develops the electrostatic latent image on the receptor 1. In this case, the toner layer has the vibrations since the width of the magnetic pole is varied for the roll 6. Thus the fluidity of the toner is increased to facilitate the control of the amount of the toner. This improve the quality of developed image.
JP7593881A 1981-05-20 1981-05-20 Electrophotographic developing device Pending JPS57190976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7593881A JPS57190976A (en) 1981-05-20 1981-05-20 Electrophotographic developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7593881A JPS57190976A (en) 1981-05-20 1981-05-20 Electrophotographic developing device

Publications (1)

Publication Number Publication Date
JPS57190976A true JPS57190976A (en) 1982-11-24

Family

ID=13590681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7593881A Pending JPS57190976A (en) 1981-05-20 1981-05-20 Electrophotographic developing device

Country Status (1)

Country Link
JP (1) JPS57190976A (en)

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