CA2021849A1 - Systeme de developpement hybride - Google Patents

Systeme de developpement hybride

Info

Publication number: CA2021849A1
Authority: CA; Canada
Prior art keywords: toner; donor; developer material; chamber; latent image
Prior art date: 1989-08-21
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.): Abandoned

Application number

CA 2021849

Other languages

English (en)

Inventor

Jeffrey J. Folkins

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.)

Xerox Corp

Original Assignee

Individual

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.)

1989-08-21

Filing date

1990-07-24

Publication date

1991-02-22

1990-07-24 Application filed by Individual filed Critical Individual

1991-02-22 Publication of CA2021849A1 publication Critical patent/CA2021849A1/fr

Status Abandoned legal-status Critical Current

Links

238000011161 development Methods 0.000 title claims description 41
239000000463 material Substances 0.000 claims abstract description 49
230000005291 magnetic effect Effects 0.000 claims abstract description 46
230000006872 improvement Effects 0.000 claims description 2
239000002245 particle Substances 0.000 description 26
239000000843 powder Substances 0.000 description 16
230000005686 electrostatic field Effects 0.000 description 8
239000008187 granular material Substances 0.000 description 6
238000004140 cleaning Methods 0.000 description 5
238000012546 transfer Methods 0.000 description 5
230000032258 transport Effects 0.000 description 4
239000000203 mixture Substances 0.000 description 3
238000012986 modification Methods 0.000 description 3
230000004048 modification Effects 0.000 description 3
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
229910052782 aluminium Inorganic materials 0.000 description 2
238000000151 deposition Methods 0.000 description 2
230000005294 ferromagnetic effect Effects 0.000 description 2
230000009191 jumping Effects 0.000 description 2
238000012545 processing Methods 0.000 description 2
239000012260 resinous material Substances 0.000 description 2
239000000758 substrate Substances 0.000 description 2
229910000838 Al alloy Inorganic materials 0.000 description 1
238000006424 Flood reaction Methods 0.000 description 1
229910001370 Se alloy Inorganic materials 0.000 description 1
BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical class [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000000576 coating method Methods 0.000 description 1
238000004040 coloring Methods 0.000 description 1
238000004891 communication Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000008021 deposition Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
230000005684 electric field Effects 0.000 description 1
230000005284 excitation Effects 0.000 description 1
238000003384 imaging method Methods 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
238000000034 method Methods 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
230000008569 process Effects 0.000 description 1
239000007921 spray Substances 0.000 description 1
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
229910052721 tungsten Inorganic materials 0.000 description 1
239000010937 tungsten Substances 0.000 description 1
229920002554 vinyl polymer Polymers 0.000 description 1

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
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0808—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer supplying means, e.g. structure of developer supply roller
- 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
- G03G15/0803—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer in a powder cloud
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/0602—Developer
- G03G2215/0604—Developer solid type
- G03G2215/0614—Developer solid type one-component
- G03G2215/0619—Developer solid type one-component non-contact (flying development)
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/0602—Developer
- G03G2215/0604—Developer solid type
- G03G2215/0614—Developer solid type one-component
- G03G2215/0621—Developer solid type one-component powder cloud
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/0634—Developing device
- G03G2215/0636—Specific type of dry developer device
- G03G2215/0643—Electrodes in developing area, e.g. wires, not belonging to the main donor part

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Dry Development In Electrophotography (AREA)
Developing For Electrophotography (AREA)
Magnetic Brush Developing In Electrophotography (AREA)

CA 2021849 1989-08-21 1990-07-24 Systeme de developpement hybride Abandoned CA2021849A1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US39615389A	1989-08-21	1989-08-21
US396153		1989-08-21

Publications (1)

Publication Number	Publication Date
CA2021849A1 true CA2021849A1 (fr)	1991-02-22

Family

ID=23566069

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 2021849 Abandoned CA2021849A1 (fr)	1989-08-21	1990-07-24	Systeme de developpement hybride

Country Status (3)

Country	Link
EP (1)	EP0414455A3 (fr)
JP (1)	JPH03113474A (fr)
CA (1)	CA2021849A1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5031570A (en) *	1989-10-20	1991-07-16	Xerox Corporation	Printing apparatus and toner/developer delivery system therefor
US5212037A (en) *	1991-08-01	1993-05-18	Xerox Corporation	Toner process with metal oxides
US5206693A (en) *	1991-08-16	1993-04-27	Xerox Corporation	Development unit having an asymmetrically biased electrode wires
JPH05281847A (ja) *	1992-03-31	1993-10-29	Fuji Xerox Co Ltd	現像装置
JPH05313488A (ja) *	1992-05-08	1993-11-26	Ricoh Co Ltd	現像装置
US5245392A (en) *	1992-10-02	1993-09-14	Xerox Corporation	Donor roll for scavengeless development in a xerographic apparatus
US5341197A (en) *	1992-12-07	1994-08-23	Xerox Corporation	Proper charging of donor roll in hybrid development
US6512909B2 (en)	2000-08-03	2003-01-28	Kyocera Corporation	Image forming process and apparatus and control method thereof
US6868240B2 (en)	2002-03-15	2005-03-15	Kyocera Corporation	Method for developing in hybrid developing apparatus
US6829448B2 (en)	2002-03-26	2004-12-07	Kyocera Corporation	Image forming apparatus and image forming method
US7116933B2 (en)	2004-09-23	2006-10-03	Kyocera Mita Corporation	Developing unit, image forming apparatus, and developing method
JP2007133376A (ja)	2005-10-13	2007-05-31	Ricoh Co Ltd	現像装置及び画像形成装置
US7783235B2 (en)	2006-10-13	2010-08-24	Ricoh Company, Ltd.	Hopping toner development apparatus and image formation apparatus
JP2008286931A (ja)	2007-05-16	2008-11-27	Ricoh Co Ltd	現像装置・プロセスカートリッジ・画像形成装置
JP5051526B2 (ja)	2007-07-10	2012-10-17	株式会社リコー	現像装置、プロセスカートリッジ及び画像形成装置
JP5067846B2 (ja)	2007-07-18	2012-11-07	株式会社リコー	現像装置、プロセスカートリッジおよび画像形成装置
JP4903644B2 (ja)	2007-07-23	2012-03-28	株式会社リコー	現像装置及びそれを用いた画像形成装置
JP5067849B2 (ja)	2007-07-31	2012-11-07	株式会社リコー	現像装置および画像形成装置
JP5114717B2 (ja)	2007-09-10	2013-01-09	株式会社リコー	画像形成装置
JP5038833B2 (ja) *	2007-09-20	2012-10-03	京セラドキュメントソリューションズ株式会社	現像装置及びこれを搭載した画像形成装置
JP2009103784A (ja)	2007-10-22	2009-05-14	Konica Minolta Business Technologies Inc	現像装置及び画像形成装置
US8433211B2 (en)	2009-09-14	2013-04-30	Ricoh Company, Ltd.	Developing device, process cartridge, and image forming apparatus
US8594540B2 (en)	2010-01-25	2013-11-26	Ricoh Company, Limited	Development device, process cartridge incorporating same, and image forming apparatus incorporating same
JP5463996B2 (ja)	2010-03-23	2014-04-09	富士ゼロックス株式会社	現像装置及びこれを用いた画像形成装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3929098A (en) *	1973-11-28	1975-12-30	Xerox Corp	Toner loading for touchdown donor
US4868600A (en) *	1988-03-21	1989-09-19	Xerox Corporation	Scavengeless development apparatus for use in highlight color imaging

1990
- 1990-07-24 CA CA 2021849 patent/CA2021849A1/fr not_active Abandoned
- 1990-08-14 JP JP2214877A patent/JPH03113474A/ja active Pending
- 1990-08-17 EP EP19900309067 patent/EP0414455A3/en not_active Withdrawn

Also Published As

Publication number	Publication date
EP0414455A2 (fr)	1991-02-27
JPH03113474A (ja)	1991-05-14
EP0414455A3 (en)	1991-08-07

Legal Events

Date	Code	Title	Description
1990-07-24	EEER	Examination request
1994-01-25	FZDE	Dead

Publication	Publication Date	Title
US5010368A (en)	1991-04-23	Magnetic transport roll for supplying toner or carrier and toner to a donor and magnetic developer roll respectively
EP0414455A2 (fr)	1991-02-27	Système de développement hybride
EP0426420B1 (fr)	1995-05-17	Appareil de développement
US4984019A (en)	1991-01-08	Electrode wire cleaning
US5245392A (en)	1993-09-14	Donor roll for scavengeless development in a xerographic apparatus
US5172170A (en)	1992-12-15	Electroded donor roll for a scavengeless developer unit
EP0601786B1 (fr)	1997-03-19	Bon chargement d'un rouleau donneur en développement hybride
US5034775A (en)	1991-07-23	Triboelectric charge measurement
US5063875A (en)	1991-11-12	Development apparatus having a transport roll rotating at least twice the surface velocity of a donor roll
US5253016A (en)	1993-10-12	Contaminant control for scavengeless development in a xerographic apparatus
US5206693A (en)	1993-04-27	Development unit having an asymmetrically biased electrode wires
US4999679A (en)	1991-03-12	Cleaning apparatus with housing and brush biased to the same magnitude and polarity
US5134442A (en)	1992-07-28	Electrode wire contamination prevention and detection
US5338893A (en)	1994-08-16	Donor roll with electrode spacer for scavengeless development in a xerographic apparatus
US4990958A (en)	1991-02-05	Reload member for a single component development housing
US5153642A (en)	1992-10-06	Fiber cleaning system for a development system
US5053824A (en)	1991-10-01	Scavengeless development apparatus having a donor belt
US5422709A (en)	1995-06-06	Electrode wire grid for developer unit
US5128723A (en)	1992-07-07	Scavengeless development system having toner deposited on a doner roller from a toner mover
US6665510B1 (en)	2003-12-16	Apparatus and method for reducing ghosting defects in a printing machine
US5204719A (en)	1993-04-20	Development system
US6895202B2 (en)	2005-05-17	Non-interactive development apparatus for electrophotographic machines having electroded donor member and AC biased electrode
US4080054A (en)	1978-03-21	Device for replenishing toner particles
US5315354A (en)	1994-05-24	Carrier bead seal
EP0032424B1 (fr)	1985-04-24	Dispositif de développement d'images latentes