EP1355196A3 - Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached - Google Patents

Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached Download PDF

Info

Publication number
EP1355196A3
EP1355196A3 EP02252780A EP02252780A EP1355196A3 EP 1355196 A3 EP1355196 A3 EP 1355196A3 EP 02252780 A EP02252780 A EP 02252780A EP 02252780 A EP02252780 A EP 02252780A EP 1355196 A3 EP1355196 A3 EP 1355196A3
Authority
EP
European Patent Office
Prior art keywords
toner
forming apparatus
irregularly
cartridge
shaped particle
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.)
Granted
Application number
EP02252780A
Other languages
German (de)
French (fr)
Other versions
EP1355196A2 (en
EP1355196B1 (en
Inventor
Takuya c/o Oki Data Corporation Goto
Hiroaki c/o Oki Data Corporation Sato
Katsuyuki c/o Oki Data Corporation Ito
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Data Corp
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
Priority claimed from JP2002107487A external-priority patent/JP2003005434A/en
Application filed by Oki Data Corp filed Critical Oki Data Corp
Publication of EP1355196A2 publication Critical patent/EP1355196A2/en
Publication of EP1355196A3 publication Critical patent/EP1355196A3/en
Application granted granted Critical
Publication of EP1355196B1 publication Critical patent/EP1355196B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/0827—Developers with toner particles characterised by their shape, e.g. degree of sphericity
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/097—Plasticisers; Charge controlling agents

Abstract

A toner is used in an image-forming apparatus that incorporates a toner- collecting member. The toner- collecting member (6a) collects residual toner (16a) on a surface of an image-bearing body (1). The toner includes a spherical toner having at least a binder resin, and an irregularly- shaped particles mixed with the spherical toner. The irregularly shaped particle has an average diameter in the range of 1-50 µm. The average diameter is 14 to 10% of the diameter of a spot printed by the image-forming apparatus. The irregularly shaped particle is a toner having the same color as the spherical toner. The irregularly shaped particle is a colorless toner. The irregularly shaped particle is charged opposite in polarity to the spherical toner. The irregularly has a roundness of 0.85 or less.
EP02252780A 2002-04-10 2002-04-19 Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached Expired - Lifetime EP1355196B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002107487 2002-04-10
JP2002107487A JP2003005434A (en) 2001-04-18 2002-04-10 Toner, toner cartridge and image forming device

Publications (3)

Publication Number Publication Date
EP1355196A2 EP1355196A2 (en) 2003-10-22
EP1355196A3 true EP1355196A3 (en) 2003-12-10
EP1355196B1 EP1355196B1 (en) 2008-03-19

Family

ID=28672473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02252780A Expired - Lifetime EP1355196B1 (en) 2002-04-10 2002-04-19 Toner, toner cartridge that holds the toner therein, and image forming apparatus into which the toner cartridge is attached

Country Status (2)

Country Link
EP (1) EP1355196B1 (en)
DE (1) DE60225667T2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121130A (en) * 1978-03-13 1979-09-20 Minolta Camera Co Ltd Dry type developer in electrophotography
JPS60123857A (en) * 1983-12-09 1985-07-02 Konishiroku Photo Ind Co Ltd Toner for developing electrostatic charge image
US5220390A (en) * 1987-11-11 1993-06-15 Minolta Camera Kabushiki Kaisha Electrophotographic image forming process
US5547797A (en) * 1993-08-05 1996-08-20 Minolta Co., Ltd. Developer for developing electrostatic latent images
US5851717A (en) * 1995-04-24 1998-12-22 Ricoh Company, Ltd. Developer for use in electrophotography, and image formation method using the same
EP0933685A1 (en) * 1998-01-28 1999-08-04 Canon Kabushiki Kaisha Toner, two-component developer, image forming method and apparatus unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54121130A (en) * 1978-03-13 1979-09-20 Minolta Camera Co Ltd Dry type developer in electrophotography
JPS60123857A (en) * 1983-12-09 1985-07-02 Konishiroku Photo Ind Co Ltd Toner for developing electrostatic charge image
US5220390A (en) * 1987-11-11 1993-06-15 Minolta Camera Kabushiki Kaisha Electrophotographic image forming process
US5547797A (en) * 1993-08-05 1996-08-20 Minolta Co., Ltd. Developer for developing electrostatic latent images
US5851717A (en) * 1995-04-24 1998-12-22 Ricoh Company, Ltd. Developer for use in electrophotography, and image formation method using the same
EP0933685A1 (en) * 1998-01-28 1999-08-04 Canon Kabushiki Kaisha Toner, two-component developer, image forming method and apparatus unit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198532, Derwent World Patents Index; Class A89, AN 1985-194785, XP002257396 *
PATENT ABSTRACTS OF JAPAN vol. 003, no. 143 (E - 154) 27 November 1979 (1979-11-27) *

Also Published As

Publication number Publication date
EP1355196A2 (en) 2003-10-22
EP1355196B1 (en) 2008-03-19
DE60225667D1 (en) 2008-04-30
DE60225667T2 (en) 2009-04-16

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