JPS576856A - Developing method - Google Patents

Developing method

Info

Publication number
JPS576856A
JPS576856A JP8031380A JP8031380A JPS576856A JP S576856 A JPS576856 A JP S576856A JP 8031380 A JP8031380 A JP 8031380A JP 8031380 A JP8031380 A JP 8031380A JP S576856 A JPS576856 A JP S576856A
Authority
JP
Japan
Prior art keywords
toner
insulating
charge
roller
developing
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
JP8031380A
Other languages
Japanese (ja)
Inventor
Masami Yoshino
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 Business Innovation Corp
Original Assignee
Fuji Xerox 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 Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP8031380A priority Critical patent/JPS576856A/en
Publication of JPS576856A publication Critical patent/JPS576856A/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

Landscapes

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

Abstract

PURPOSE:To charge toner always uniformly and to obtain a high density copy image free from fog, by applying voltage between a developer feeding member and an insulating material kept in contact with the surface with an insulating toner layer, then stripping the insulating member, and developing a latent image. CONSTITUTION:An insulating film 4 kept in contact with the surface of toner 3 is charged with a corotron 21 or a conductive roller, and then, the film 4 is stripped off to uniformly charge the toner layer 3. For example, an insulating toner on a developing sleeve 9 around a developing roller containing magnets is trimmed with a trimmer 7 and moved as a thin layer toward a photosensitive drum 10 in the arrow direction. At that time, the toner layer 1 is forcibly charged with a conductive roller 8 coated with the insulating film 4. The roller 8 rotated in the arrow direction is always maintained at a constant level of charge, thus permitting a superior, uniform density image to be always obtained.
JP8031380A 1980-06-16 1980-06-16 Developing method Pending JPS576856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8031380A JPS576856A (en) 1980-06-16 1980-06-16 Developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8031380A JPS576856A (en) 1980-06-16 1980-06-16 Developing method

Publications (1)

Publication Number Publication Date
JPS576856A true JPS576856A (en) 1982-01-13

Family

ID=13714769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8031380A Pending JPS576856A (en) 1980-06-16 1980-06-16 Developing method

Country Status (1)

Country Link
JP (1) JPS576856A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149376A (en) * 1983-02-10 1984-08-27 ゼロツクス　コ−ポレ−シヨン Toner charging apparatus having wear resistant film
JPS60103367A (en) * 1983-11-11 1985-06-07 Fuji Xerox Co Ltd Developing device of electrophotografic copying machine
JPS61219066A (en) * 1985-03-20 1986-09-29 ゼロツクス　コーポレーシヨン Developing apparatus
JPS6295558A (en) * 1985-10-23 1987-05-02 Ricoh Co Ltd Developing device
JPH0224679A (en) * 1988-05-31 1990-01-26 Xerox Corp Electrostatic latent image developing apparatus
JPH02138759U (en) * 1989-01-18 1990-11-20
JPH08234557A (en) * 1996-02-20 1996-09-13 Ricoh Co Ltd Developing device
JPH11119546A (en) * 1997-10-09 1999-04-30 Canon Inc Developing device, process cartridge and image forming device
JPH11119547A (en) * 1997-10-09 1999-04-30 Canon Inc Developing device, process cartridge and image forming device
US7215911B2 (en) * 2003-12-29 2007-05-08 Samsung Electronics Co., Ltd. Image forming apparatus having subsidiary charge roller

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149376A (en) * 1983-02-10 1984-08-27 ゼロツクス　コ−ポレ−シヨン Toner charging apparatus having wear resistant film
JPS60103367A (en) * 1983-11-11 1985-06-07 Fuji Xerox Co Ltd Developing device of electrophotografic copying machine
JPS61219066A (en) * 1985-03-20 1986-09-29 ゼロツクス　コーポレーシヨン Developing apparatus
JPS6295558A (en) * 1985-10-23 1987-05-02 Ricoh Co Ltd Developing device
JPH0224679A (en) * 1988-05-31 1990-01-26 Xerox Corp Electrostatic latent image developing apparatus
JPH02138759U (en) * 1989-01-18 1990-11-20
JPH08234557A (en) * 1996-02-20 1996-09-13 Ricoh Co Ltd Developing device
JPH11119546A (en) * 1997-10-09 1999-04-30 Canon Inc Developing device, process cartridge and image forming device
JPH11119547A (en) * 1997-10-09 1999-04-30 Canon Inc Developing device, process cartridge and image forming device
US7215911B2 (en) * 2003-12-29 2007-05-08 Samsung Electronics Co., Ltd. Image forming apparatus having subsidiary charge roller

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