EP0708378A3 - Entwickler des Zweikomponententyps, Entwicklungsverfahren und Bildherstellungsverfahren - Google Patents

Entwickler des Zweikomponententyps, Entwicklungsverfahren und Bildherstellungsverfahren Download PDF

Info

Publication number
EP0708378A3
EP0708378A3 EP95306880A EP95306880A EP0708378A3 EP 0708378 A3 EP0708378 A3 EP 0708378A3 EP 95306880 A EP95306880 A EP 95306880A EP 95306880 A EP95306880 A EP 95306880A EP 0708378 A3 EP0708378 A3 EP 0708378A3
Authority
EP
European Patent Office
Prior art keywords
magnetic
particle size
average particle
component type
particles
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
EP95306880A
Other languages
English (en)
French (fr)
Other versions
EP0708378B1 (de
EP0708378A2 (de
Inventor
Yoshinobu C/O Canon Kabushiki Kaisha Baba
Yuzo c/o Canon Kabushiki Kaisha Tokunaga
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of EP0708378A2 publication Critical patent/EP0708378A2/de
Publication of EP0708378A3 publication Critical patent/EP0708378A3/de
Application granted granted Critical
Publication of EP0708378B1 publication Critical patent/EP0708378B1/de
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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1088—Binder-type carrier
    • G03G9/10884—Binder is obtained other than by reactions only involving carbon-carbon unsaturated bonds
    • 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
    • G03G9/0819—Developers with toner particles characterised by the dimensions of the particles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/06—Developing
    • G03G13/08—Developing using a solid developer, e.g. powder developer
    • G03G13/09—Developing using a solid developer, e.g. powder developer using magnetic brush
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • 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
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • G03G9/1085—Ferrite carrier, e.g. magnetite with non-ferrous metal oxide, e.g. MgO-Fe2O3

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)
EP95306880A 1994-10-05 1995-09-29 Entwickler des Zweikomponententyps, Entwicklungsverfahren und Bildherstellungsverfahren Expired - Lifetime EP0708378B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP26442894 1994-10-05
JP264428/94 1994-10-05
JP26442894 1994-10-05

Publications (3)

Publication Number Publication Date
EP0708378A2 EP0708378A2 (de) 1996-04-24
EP0708378A3 true EP0708378A3 (de) 1996-05-01
EP0708378B1 EP0708378B1 (de) 2000-12-13

Family

ID=17403052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95306880A Expired - Lifetime EP0708378B1 (de) 1994-10-05 1995-09-29 Entwickler des Zweikomponententyps, Entwicklungsverfahren und Bildherstellungsverfahren

Country Status (5)

Country Link
EP (1) EP0708378B1 (de)
KR (1) KR0163996B1 (de)
CN (1) CN1099054C (de)
DE (1) DE69519620T2 (de)
HK (1) HK1014051A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766814A (en) * 1996-04-08 1998-06-16 Cannon Kabushiki Kaisha Magnetic coated carrier, two-component type developer and developing method
DE69928062T2 (de) 1998-11-06 2006-07-20 Toda Kogyo Corp. Elektrophotographischer magnetischer Träger
DE102005018675A1 (de) * 2005-01-20 2006-07-27 Eastman Kodak Co. Verfahren und Toner umfassendes Gemisch zur Entwicklung eines Tonerbildes auf einem Fotoleiter
WO2009078493A1 (en) * 2007-12-19 2009-06-25 Ricoh Company, Ltd. Method for producing carrier for electrophotographic developer, carrier for electrophotographic developer, electrophotographic developer, and image forming method
EP2696244B1 (de) * 2012-08-08 2015-12-30 Canon Kabushiki Kaisha Magnetischer Träger und Zweikomponentenentwickler

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128347A (en) * 1981-02-03 1982-08-09 Ricoh Co Ltd Toner for electrophotographic dry type developer
EP0317667A1 (de) * 1987-11-24 1989-05-31 Agfa-Gevaert N.V. Magnetische Trägerteilchen
JPH01297657A (ja) * 1988-05-26 1989-11-30 Matsushita Electric Ind Co Ltd 静電荷像現像剤
EP0384697A2 (de) * 1989-02-21 1990-08-29 Toda Kogyo Corp. Zusammengesetzte Trägerteilchen für die Elektrophotographie und Verfahren zu ihrer Herstellung
JPH04124677A (ja) * 1990-09-17 1992-04-24 Fuji Xerox Co Ltd 静電荷像用現像剤
JPH1124868A (ja) * 1997-07-03 1999-01-29 Ricoh Co Ltd プリンタのデバッグ方式

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297691A (en) 1939-04-04 1942-10-06 Chester F Carlson Electrophotography
US4071361A (en) 1965-01-09 1978-01-31 Canon Kabushiki Kaisha Electrophotographic process and apparatus
JPS4223910B1 (de) 1965-08-12 1967-11-17
JPS59104663A (ja) 1982-12-08 1984-06-16 Konishiroku Photo Ind Co Ltd 静電荷像現像用キヤリア
JPS60131549A (ja) 1983-12-20 1985-07-13 Konishiroku Photo Ind Co Ltd 現像方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128347A (en) * 1981-02-03 1982-08-09 Ricoh Co Ltd Toner for electrophotographic dry type developer
EP0317667A1 (de) * 1987-11-24 1989-05-31 Agfa-Gevaert N.V. Magnetische Trägerteilchen
JPH01297657A (ja) * 1988-05-26 1989-11-30 Matsushita Electric Ind Co Ltd 静電荷像現像剤
EP0384697A2 (de) * 1989-02-21 1990-08-29 Toda Kogyo Corp. Zusammengesetzte Trägerteilchen für die Elektrophotographie und Verfahren zu ihrer Herstellung
JPH04124677A (ja) * 1990-09-17 1992-04-24 Fuji Xerox Co Ltd 静電荷像用現像剤
JPH1124868A (ja) * 1997-07-03 1999-01-29 Ricoh Co Ltd プリンタのデバッグ方式

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9224, Derwent World Patents Index; Class G08, AN 92-196283 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 368 (P - 919) 16 August 1989 (1989-08-16) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 88 (P - 1008)<4031> 19 February 1990 (1990-02-19) *
PATENT ABSTRACTS OF JAPAN vol. 6, no. 225 (P - 154)<1103> 10 November 1982 (1982-11-10) *

Also Published As

Publication number Publication date
DE69519620T2 (de) 2001-05-17
DE69519620D1 (de) 2001-01-18
EP0708378B1 (de) 2000-12-13
CN1099054C (zh) 2003-01-15
HK1014051A1 (en) 1999-09-17
EP0708378A2 (de) 1996-04-24
KR960015106A (ko) 1996-05-22
CN1130767A (zh) 1996-09-11
KR0163996B1 (ko) 1999-03-20

Similar Documents

Publication Publication Date Title
EP0708376A3 (de) Entwickler des Zweikomponententyps, Entwicklungsverfahren und Bildherstellungsverfahren
EP1237051A3 (de) Entwicklernachfüllung und Entwicklungsverfahren
CA2354281A1 (en) Magnetic toner
EP1477863A3 (de) Trägerteilchen, Entwickler, Bildaufzeichnungsgerät und Prozesskartusche
GB2139371A (en) Electrographic developer composition and method for using the same
EP1223473A3 (de) Bildherstellungsverfahren, Bildherstellungsgerät und Tonerbehälter
TW350042B (en) Toner for developing electrostatic image
EP0867779A3 (de) Spherische zusammengesetzte Teilchen und elektrophotographische magnetische Trägerteilchen
EP1207429A3 (de) Bilderzeugungsverfahren und Bilderzeugungsvorrichtung
EP0774696A3 (de) Toner für die Entwicklung elektrostatischer Bilder, Bildherstellungsverfahren und Prozesskassette
EP0905569A3 (de) Magnetischer Toner, Bildherstellungsverfahren und Prozesskassette
EP1132781A3 (de) Magnetischer Toner, Verfahren zu dessen Herstellung, Bildherstellungsverfahren, Apparat und Verfahrenskassette worin der Toner eingesetzt wird
EP0843225A3 (de) Trägerteilchen für die Elektrophotographie, Zwei-Komponenten-Typ-Entwickler und Bildherstellungsmethode
US5991585A (en) Developing device for an image forming apparatus and developing roller therefor
EP0947887A3 (de) Toner für die Entwicklung elektrostatischer Bilder und Bildherstellungsverfahren
EP0886187A3 (de) Toner, Zweikomponenten-Entwickler und Bilderzeugungsverfahren
CA2119689A1 (en) Magnetic Toner for Developing Electrostatic Image
EP1225600A3 (de) Schwarze magnetische Eisenoxydteilchen und magnetischer Toner
WO2001088617A3 (en) Electrographic methods using hard magnetic carrier particles
EP0867407A3 (de) Nadelförmige hochdichte Hämatitteilchen, nichtmagnetische Unterschicht und magnetisches Aufzeichnungsmedium
EP0875795A3 (de) Bildherstellungsverfahren führend zu einer Kontrolle der Restladung als Resultat einer ausgewählten Tonerzusammensetzung
EP0952494A3 (de) Schwarze, nicht-magnetische Kompositteilchen für schwarze Toner und diese Teilchen enthaltende schwarze Toner
EP1220044A3 (de) Entwicklungssysteme für magnetische Toner und Toner mit niedrigem magnetischen Materialgehalt
EP1207430A3 (de) Bilderzeugungsvorrichtung und Bilderzeugungsverfahren
EP0708378A3 (de) Entwickler des Zweikomponententyps, Entwicklungsverfahren und Bildherstellungsverfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

RHK1 Main classification (correction)

Ipc: G03G 9/107

17P Request for examination filed

Effective date: 19960911

17Q First examination report despatched

Effective date: 19980115

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ET Fr: translation filed
REF Corresponds to:

Ref document number: 69519620

Country of ref document: DE

Date of ref document: 20010118

ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130930

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130924

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130903

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130926

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69519620

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140929

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69519620

Country of ref document: DE

Effective date: 20150401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150529

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140929

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140930

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140929