JPS57198477A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57198477A
JPS57198477A JP8297881A JP8297881A JPS57198477A JP S57198477 A JPS57198477 A JP S57198477A JP 8297881 A JP8297881 A JP 8297881A JP 8297881 A JP8297881 A JP 8297881A JP S57198477 A JPS57198477 A JP S57198477A
Authority
JP
Japan
Prior art keywords
groove
developing sleeve
magnetic toner
unevenness
field generating
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
JP8297881A
Other languages
Japanese (ja)
Inventor
Masaaki Nomura
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 JP8297881A priority Critical patent/JPS57198477A/en
Publication of JPS57198477A publication Critical patent/JPS57198477A/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 horizontally stirring magnetic toner and obtaine developed image of good quality free from deterioration and unevenness by engraving a groove declined to the shaft of a developing sleeve on a repulsion field generating magnet. CONSTITUTION:If a groove 8 inclined to a developing sleeve shaft is engraved on a repulsion field generating magnet 9, a magnetic toner to be fed in the arrow direction is separated at the part of the groove 8 in the dot-line direction by the vector synthesis shown in the drawing and absorbed at a position differ ..rom the preceeding one on the developing sleeve. By using such a grooved magnet 9, the magnetic toner can be horizontally stirred and developed image of good quality can be obtained without the generation of image deterioration, ghost and unevenness.
JP8297881A 1981-05-31 1981-05-31 Developing device Pending JPS57198477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8297881A JPS57198477A (en) 1981-05-31 1981-05-31 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8297881A JPS57198477A (en) 1981-05-31 1981-05-31 Developing device

Publications (1)

Publication Number Publication Date
JPS57198477A true JPS57198477A (en) 1982-12-06

Family

ID=13789296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8297881A Pending JPS57198477A (en) 1981-05-31 1981-05-31 Developing device

Country Status (1)

Country Link
JP (1) JPS57198477A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204868A (en) * 1983-05-10 1984-11-20 Canon Inc Developer thin layer forming device
JPS6087353A (en) * 1983-10-19 1985-05-17 Canon Inc Formation of thin layer of developer
EP0550880A2 (en) * 1992-01-07 1993-07-14 Sharp Kabushiki Kaisha Image forming device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59204868A (en) * 1983-05-10 1984-11-20 Canon Inc Developer thin layer forming device
JPH0519146B2 (en) * 1983-05-10 1993-03-15 Canon Kk
JPS6087353A (en) * 1983-10-19 1985-05-17 Canon Inc Formation of thin layer of developer
EP0550880A2 (en) * 1992-01-07 1993-07-14 Sharp Kabushiki Kaisha Image forming device

Similar Documents

Publication Publication Date Title
JPS5518656A (en) Electrophotographic developing method
JPS5345245A (en) Electrostatic latent image developing apparatus
JPS57198477A (en) Developing device
JPS5354410A (en) Crt hard copying machine
JPS537241A (en) Transfer type copying machine for electrophotography
JPS5343530A (en) Developing method
GB1155922A (en) Electrophotographic apparatus
JPS53116160A (en) Two-color image developing process
ES8202162A1 (en) Copying method and apparatus
JPS5424638A (en) Magnetic brush developing device
JPS545443A (en) Corona charger in electrophotography
JPS5436726A (en) Dry type development for zerography
JPS5423544A (en) Dichromatic developing device
JPS51113635A (en) Image forming apparatus
JPS53138339A (en) Transfer method and device for toner image
JPS5368242A (en) Electrophotographic fixing device
JPS644780A (en) Developing device
JPS5220037A (en) Magnetic transfer device of magnetic toner
JPS5621161A (en) Variable magnification copying apparatus
JPS6456439A (en) Image forming device
JPS644761A (en) Image forming method
JPS5260126A (en) Reduced scale image input device
JPS53142245A (en) Electrophotographic copier
JPS5412747A (en) Electrophotographic device
JPS5552074A (en) Original platen moving type electrophotographic copier