KR960015106A - Two-component developer, developing method and image forming method - Google Patents
Two-component developer, developing method and image forming method Download PDFInfo
- Publication number
- KR960015106A KR960015106A KR1019950033832A KR19950033832A KR960015106A KR 960015106 A KR960015106 A KR 960015106A KR 1019950033832 A KR1019950033832 A KR 1019950033832A KR 19950033832 A KR19950033832 A KR 19950033832A KR 960015106 A KR960015106 A KR 960015106A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic
- metal oxide
- carrier
- particle size
- average particle
- Prior art date
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)
Abstract
정전하상 현상용 2성분계 현상제는 적어도 토너 및 자성 캐리어로 구성된다. 토너는 10㎛ 이하의 중량 평균 입도 D4 및 D4/D1≤1.5의 관계를 만족시키는 수 평균 입도 D1을 갖는다. 자성 캐리어는 자성 철 화합물 입자, 비자성 금속 산화물 입자, 및 페놀성 수지로 이루어진 결합제로 이루어진 복합체 입자로 구성된다. 이 복합체 입자는 자성 철 화합물 입자 및 비자성 금속 산화물 입자를 총 80∼99중량%의 비율로 함유한다. 자성 철 화합물 입자는 평균 입도 ra를 가지며, 비자성 금속 산화물 입자는 rb/ra>1.0의 관계를 만족시키는 수 평균 입도rb를 갖는다.The two-component developer for electrostatic charge image development is composed of at least a toner and a magnetic carrier. The toner has a weight average particle size D4 of 10 占 퐉 or less and a number average particle size D1 satisfying the relationship of D4 / D1? 1.5. The magnetic carrier is composed of composite particles composed of a magnetic iron compound particle, a non-magnetic metal oxide particle, and a binder composed of a phenolic resin. The composite particles contain the magnetic iron compound particles and the non-magnetic metal oxide particles in a total amount of 80 to 99% by weight. The magnetic iron compound particles have an average particle size r a , and the non-magnetic metal oxide particles have a number average particle size r b satisfying the relationship of r b / r a > 1.0.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명에 따른 현상 방법의 한 실시태양을 실행하기 위한 장치의 개략도,1 is a schematic view of an apparatus for carrying out an embodiment of the developing method according to the invention,
제2도는 자성 캐리어, 캐리어 코어 및 금속 산화물의 (전기) 비저항을 측정하는 장치의 도식도,2 is a schematic diagram of an apparatus for measuring (electrical) resistivity of a magnetic carrier, a carrier core and a metal oxide,
제3도는 본 발명에 따른 화상 형성 방법의 한 실시태양을 실행하기 위한 장치의 개략도.Figure 3 is a schematic diagram of an apparatus for carrying out an embodiment of the image forming method according to the present invention;
Claims (40)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26442894 | 1994-10-05 | ||
JP94-264428 | 1994-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960015106A true KR960015106A (en) | 1996-05-22 |
KR0163996B1 KR0163996B1 (en) | 1999-03-20 |
Family
ID=17403052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950033832A KR0163996B1 (en) | 1994-10-05 | 1995-10-04 | Two-component type developer developing method and image forming method |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0708378B1 (en) |
KR (1) | KR0163996B1 (en) |
CN (1) | CN1099054C (en) |
DE (1) | DE69519620T2 (en) |
HK (1) | HK1014051A1 (en) |
Families Citing this family (5)
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 (en) | 1998-11-06 | 2006-07-20 | Toda Kogyo Corp. | Electrophotographic magnetic carrier |
DE102005018675A1 (en) * | 2005-01-20 | 2006-07-27 | Eastman Kodak Co. | Toner image developing method, involves transferring toner using toner and carrier particles, where amount of carrier particles exists at its side as mixture of electrically conductive and non-conductive or insulating carrier particles |
KR101244051B1 (en) * | 2007-12-19 | 2013-03-18 | 가부시키가이샤 리코 | Method for producing carrier for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer |
US8921023B2 (en) * | 2012-08-08 | 2014-12-30 | Canon Kabushiki Kaisha | Magnetic carrier and two-component developer |
Family Cites Families (11)
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 (en) | 1965-08-12 | 1967-11-17 | ||
JPS57128347A (en) * | 1981-02-03 | 1982-08-09 | Ricoh Co Ltd | Toner for electrophotographic dry type developer |
JPS59104663A (en) | 1982-12-08 | 1984-06-16 | Konishiroku Photo Ind Co Ltd | Electrostatic charge image developing toner |
JPS60131549A (en) | 1983-12-20 | 1985-07-13 | Konishiroku Photo Ind Co Ltd | Developing method |
DE3784245T2 (en) * | 1987-11-24 | 1993-09-02 | Agfa Gevaert Nv | MAGNETIC CARRIER PARTICLES. |
JPH01297657A (en) * | 1988-05-26 | 1989-11-30 | Matsushita Electric Ind Co Ltd | Electrostatic charge image developer |
US5108862A (en) * | 1989-02-21 | 1992-04-28 | Toda Kogyo Corp. | Composite carrier particles for electrophotography and process for producing the same |
JP2682220B2 (en) * | 1990-09-17 | 1997-11-26 | 富士ゼロックス株式会社 | Developer for electrostatic image |
JPH1124868A (en) * | 1997-07-03 | 1999-01-29 | Ricoh Co Ltd | Debugging method of printer |
-
1995
- 1995-09-29 EP EP95306880A patent/EP0708378B1/en not_active Expired - Lifetime
- 1995-09-29 DE DE69519620T patent/DE69519620T2/en not_active Expired - Lifetime
- 1995-10-04 KR KR1019950033832A patent/KR0163996B1/en not_active IP Right Cessation
- 1995-10-05 CN CN95119963A patent/CN1099054C/en not_active Expired - Fee Related
-
1998
- 1998-12-24 HK HK98115373A patent/HK1014051A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69519620D1 (en) | 2001-01-18 |
HK1014051A1 (en) | 1999-09-17 |
CN1099054C (en) | 2003-01-15 |
KR0163996B1 (en) | 1999-03-20 |
EP0708378A3 (en) | 1996-05-01 |
EP0708378B1 (en) | 2000-12-13 |
EP0708378A2 (en) | 1996-04-24 |
DE69519620T2 (en) | 2001-05-17 |
CN1130767A (en) | 1996-09-11 |
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