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JPS5794767A - Developing device for electrostatic latent image - Google Patents

Developing device for electrostatic latent image

Info

Publication number
JPS5794767A
JPS5794767A JP17130780A JP17130780A JPS5794767A JP S5794767 A JPS5794767 A JP S5794767A JP 17130780 A JP17130780 A JP 17130780A JP 17130780 A JP17130780 A JP 17130780A JP S5794767 A JPS5794767 A JP S5794767A
Authority
JP
Japan
Prior art keywords
toner
electric charge
development
plate
developer
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
JP17130780A
Other languages
Japanese (ja)
Inventor
Jiro Nagata
Goro Oda
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP17130780A priority Critical patent/JPS5794767A/en
Publication of JPS5794767A publication Critical patent/JPS5794767A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09Apparatus 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 not only the developing performance but the conveying performance of the developer for single-component magnetic development, by applying the electric charge to the developer by means of an AC electric charging device before development. CONSTITUTION:A hopper 21 for magnetic toner having a conductive side plate 26 and connected to an AC power supply 29 is provided on a rotatable cylindrical nonmagnetic matter sleeve 23 which contains a rotatable magnet 25. The plate 26 is covered with a covering material 31 made of an insulated member or a semiinsulated member at the side of the nonmagnetic matter 23. Thus the injection is controlled for the electric charge which is supplied from the side of the plate 26. When the AC voltage is applied, the toner receives the injection of the electric charge from the grounded sleeve 23 to be charged to 10 and 1 alternately. Thus these electric charge and the toner are stirred and mixed up in the course of the conveying. The conditions of development can be changed by varying the voltage of application and the frequency. The electric charging of the toner is possible if no material 31 is used.
JP17130780A 1980-12-04 1980-12-04 Developing device for electrostatic latent image Pending JPS5794767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17130780A JPS5794767A (en) 1980-12-04 1980-12-04 Developing device for electrostatic latent image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17130780A JPS5794767A (en) 1980-12-04 1980-12-04 Developing device for electrostatic latent image

Publications (1)

Publication Number Publication Date
JPS5794767A true JPS5794767A (en) 1982-06-12

Family

ID=15920842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17130780A Pending JPS5794767A (en) 1980-12-04 1980-12-04 Developing device for electrostatic latent image

Country Status (1)

Country Link
JP (1) JPS5794767A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6153661A (en) * 1984-08-24 1986-03-17 Fuji Xerox Co Ltd Contact developing method using insulating magnetic one-component developer
EP0459780A2 (en) * 1990-05-30 1991-12-04 Mita Industrial Co., Ltd. Method of feeding developer to developing zone in electrophotography
EP0619530A1 (en) * 1993-03-31 1994-10-12 Canon Kabushiki Kaisha Developing apparatus using elastic blade
EP0660200A2 (en) * 1993-12-24 1995-06-28 Canon Kabushiki Kaisha Developing apparatus generating electric field between developer carrying member and developer layer regulating member

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6153661A (en) * 1984-08-24 1986-03-17 Fuji Xerox Co Ltd Contact developing method using insulating magnetic one-component developer
EP0459780A2 (en) * 1990-05-30 1991-12-04 Mita Industrial Co., Ltd. Method of feeding developer to developing zone in electrophotography
EP0619530A1 (en) * 1993-03-31 1994-10-12 Canon Kabushiki Kaisha Developing apparatus using elastic blade
US5519472A (en) * 1993-03-31 1996-05-21 Canon Kabushiki Kaisha Developing apparatus using elastic blade
EP0660200A2 (en) * 1993-12-24 1995-06-28 Canon Kabushiki Kaisha Developing apparatus generating electric field between developer carrying member and developer layer regulating member
EP0660200A3 (en) * 1993-12-24 1996-08-14 Canon Kk Developing apparatus generating electric field between developer carrying member and developer layer regulating member.
US5682585A (en) * 1993-12-24 1997-10-28 Canon Kabushiki Kaisha Developing apparatus generating electric field between developer carrying member and developer layer regulating member

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