US3764208A - Developing device for use in electrophotographic copying machines - Google Patents

Developing device for use in electrophotographic copying machines Download PDF

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Publication number
US3764208A
US3764208A US00211276A US3764208DA US3764208A US 3764208 A US3764208 A US 3764208A US 00211276 A US00211276 A US 00211276A US 3764208D A US3764208D A US 3764208DA US 3764208 A US3764208 A US 3764208A
Authority
US
United States
Prior art keywords
developing agent
developing
chamber
agent supply
supply chamber
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.)
Expired - Lifetime
Application number
US00211276A
Other languages
English (en)
Inventor
I Takahashi
M Ariga
S Sugiura
M Fujii
K Kawakubo
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
Application granted granted Critical
Publication of US3764208A publication Critical patent/US3764208A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
    • 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • 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
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
    • G03G15/0868—Toner cartridges fulfilling a continuous function within the electrographic apparatus during the use of the supplied developer material, e.g. toner discharge on demand, storing residual toner, acting as an active closure for the developer replenishing opening
    • 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
    • G03G15/30—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum
    • 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
    • G03G15/60—Apparatus which relate to the handling of originals
    • G03G15/605—Holders for originals or exposure platens
    • 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
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6532—Removing a copy sheet form a xerographic drum, band or plate
    • 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
    • G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
    • G03G15/751—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to drum
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1604—Arrangement or disposition of the entire apparatus
    • G03G21/1623—Means to access the interior of the apparatus
    • 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
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G2215/0673—Generally vertically mounting of said toner cartridge parallel to its longitudinal rotational axis
    • 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
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0663—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G2215/0678—Bottle shaped container having a bottle neck for toner discharge
    • 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
    • G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
    • G03G2215/0685—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material fulfilling a continuous function within the electrographic apparatus during the use of the supplied developer material, e.g. toner discharge on demand, storing residual toner, not acting as a passive closure for the developer replenishing opening
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/163—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the developer unit
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
    • G03G2221/1654—Locks and means for positioning or alignment
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
    • G03G2221/1657—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts transmitting mechanical drive power
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1672—Paper handling
    • G03G2221/1675—Paper handling jam treatment
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1678—Frame structures
    • G03G2221/1687—Frame structures using opening shell type machines, e.g. pivoting assemblies

Definitions

  • ABSTRACT A developing means for applying developing agent to an electrostatic latent image formed on an electrophotographic sensitive member wherein the inlet of a developing agent container is directed upwardly and downwardly while attached to the developing device whereby both the supply of new developing agent to the developing device and removal of used developing agent from said developing device are realized.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Dry Development In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
US00211276A 1970-12-29 1971-12-23 Developing device for use in electrophotographic copying machines Expired - Lifetime US3764208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12721270 1970-12-29

Publications (1)

Publication Number Publication Date
US3764208A true US3764208A (en) 1973-10-09

Family

ID=14954482

Family Applications (2)

Application Number Title Priority Date Filing Date
US00211276A Expired - Lifetime US3764208A (en) 1970-12-29 1971-12-23 Developing device for use in electrophotographic copying machines
US00381400A Expired - Lifetime US3834808A (en) 1970-12-29 1973-07-23 Electronic photographic copying machine

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00381400A Expired - Lifetime US3834808A (en) 1970-12-29 1973-07-23 Electronic photographic copying machine

Country Status (2)

Country Link
US (2) US3764208A (de)
DE (5) DE2167138C3 (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50133842A (de) * 1974-03-22 1975-10-23
US3954331A (en) * 1974-11-20 1976-05-04 Xerox Corporation Toner dispenser
US3955533A (en) * 1972-09-27 1976-05-11 Smith Ian E Squeegee roller system for removing excess developer liquid from photoconductive surfaces
US3958878A (en) * 1974-11-20 1976-05-25 Xerox Corporation Electrostatic processor having interchangable reservoirs for supplying and reclaiming toner
US3999514A (en) * 1975-09-29 1976-12-28 International Business Machines Corporation Magnetic brush developer
US4026242A (en) * 1974-06-28 1977-05-31 Grafosol S.P.A. Matrix supporting device in electrostatic development apparatus
US4033691A (en) * 1975-10-30 1977-07-05 Xerox Corporation Variable magnification reproducing apparatus
US4040387A (en) * 1972-09-24 1977-08-09 Mita Industrial Co. Ltd. Electrostatic photographic copying apparatus
JPS52167938U (de) * 1976-06-12 1977-12-20
US4101211A (en) * 1976-07-12 1978-07-18 Eastman Kodak Company Magnetic curtain seal for development apparatus
US4120263A (en) * 1976-02-26 1978-10-17 Grafosol S.P.A. Matrix supporting devices in electrostatic development apparatus
JPS5522702U (de) * 1978-07-31 1980-02-14
US4344692A (en) * 1979-03-15 1982-08-17 Tokyo Shibaura Denki Kabushiki Kaisha Developer transportation device for electrostatic copying machine
US4449810A (en) * 1981-07-10 1984-05-22 Ricoh Company, Ltd. Electrophotographic copying machine with means for mixing and removing toner and an integral exposure plate
US4451133A (en) * 1981-04-30 1984-05-29 Siemens Aktiengesellschaft Device for removing the developer mix from a developing station
US4500196A (en) * 1981-08-19 1985-02-19 Ricoh Company, Ltd. Photoconductive element cleaning apparatus and residual toner collecting apparatus
US4775874A (en) * 1986-06-20 1988-10-04 Siemens Aktiegesellschaft Magnetic closing and conveying mechanism for non-mechanical printer or copier devices
US4845523A (en) * 1984-09-11 1989-07-04 Sharp Kabushiki Kaisha A developing device for an electrophotographic copying machine
US4910602A (en) * 1984-06-12 1990-03-20 Canon Kabushiki Kaisha Thermal recorder with ink sheet cassette removably mounted in openable housing
US4919071A (en) * 1987-11-05 1990-04-24 Bull Hn Information Systems Italia S.P.A. Dry toner removable developing cartridge
US4932355A (en) * 1985-10-09 1990-06-12 Siemens Aktiengesellschaft Method for removing a developer mix from a developing station
JPH03246556A (ja) * 1990-12-27 1991-11-01 Canon Inc プロセスカートリッジ及びこのプロセスカートリッジが着脱自在な画像形成装置
DE4243096A1 (en) * 1991-12-20 1993-06-24 Fujitsu Ltd Developer unit for photocopier using two=component developer - has rotating magnetic roller feed with fixed gauging blade, helical screw rollers and paddle for distribution control and mixing
US5294968A (en) * 1991-07-09 1994-03-15 Konica Corporation Developing unit and drive transmission attachment
US5572299A (en) * 1991-11-08 1996-11-05 Fujitsu Limited Developing device using two-component developer
US20100054779A1 (en) * 2008-08-29 2010-03-04 Kyocera Mita Corporation Developing device and image forming apparatus

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442567B2 (de) * 1973-09-07 1980-09-04 Minolta Camera K.K., Osaka (Japan) Elektrophotographisches Kopiergerät mit einer photoleitfähigen Trommel
DE2509117C2 (de) * 1975-03-03 1977-04-21 Hoechst Ag Vorrichtung mit einem um eine drehbare trommel in einem elektrofotografischen kopiergeraet gefuehrten austauschbaren, endlichen fotoleiterband
DE2717055A1 (de) * 1977-04-18 1978-10-19 Siemens Ag Einrichtung zum lagern einer als zwischentraeger in einem nach dem elektrostatischen prinzip arbeitenden druck- oder kopiergeraet verwendeten trommel
DE2746065C3 (de) * 1977-10-13 1981-10-22 Olympia Werke Ag, 2940 Wilhelmshaven Vorrichtung zur automatischen Befestigung einer austauschbaren endlichen Fotoleiterbahn an einer Führungstrommel in einem elektrofotografischen Kopiergerät
DE2834508C2 (de) * 1978-08-07 1986-04-03 Olympia Werke Ag, 2940 Wilhelmshaven Elektrofotografisches Kopiergerät mit einer Fotoleiterschicht auf einer Trommel oder auf einem Band
US4198155A (en) * 1978-10-30 1980-04-15 Xerox Corporation Photoconductive belt assembly
JPH019959Y2 (de) * 1979-11-26 1989-03-20
US4304273A (en) * 1979-12-31 1981-12-08 International Business Machines Corporation Toner container and toner dispensing apparatus
US4357093A (en) * 1980-12-18 1982-11-02 International Business Machines Corporation Photoconductor tensioning device
DE3117309C2 (de) * 1981-04-30 1983-04-14 Siemens AG, 1000 Berlin und 8000 München Mischvorrichtung zur Durchmischung eines aus Trägerteilchen und Toner bestehenden Entwicklers
DE3119010C2 (de) * 1981-05-13 1986-07-17 Siemens AG, 1000 Berlin und 8000 München Entwicklerstation in einer elektrofotografischen Einrichtung für die Entwicklung von auf einem Ladungsbildträger aufgebrachten Ladungsbildern
US4642661A (en) * 1985-11-04 1987-02-10 Kcr Technology, Inc. Printer with drive on swinging platform
DE3637075A1 (de) * 1986-10-31 1988-05-05 Kodak Ag Buchkopiervorrichtung
US5081507A (en) * 1987-11-16 1992-01-14 Xerox Corporation Registration apparatus for a printing system
US5335054A (en) * 1989-02-06 1994-08-02 Spectrum Sciences B.V. Image transfer apparatus including intermediate transfer blanket
KR940005127B1 (ko) * 1991-11-25 1994-06-11 삼성전자 주식회사 전자사진 방식을 이용한 기기의 구동부 구동장치
JPH06102728A (ja) * 1992-09-24 1994-04-15 Sony Corp プリンタ
US5630197A (en) * 1992-09-30 1997-05-13 Hitachi Koki Co., Ltd. Mounting device for interchangeably mounting different types of photoconductors
DE69604334D1 (de) * 1995-06-07 1999-10-28 Nashua Corp Vorrichtung und Verfahren, um Toner und desgleichen auszuteilen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3088386A (en) * 1959-11-16 1963-05-07 American Photocopy Equip Co Electrophotographic photocopy machine
US3103445A (en) * 1963-09-10 Method of developing an electrostatic
US3152012A (en) * 1960-12-19 1964-10-06 Ibm Apparatus for the development of electrostatic images
US3659556A (en) * 1970-08-19 1972-05-02 Xerox Corp Programmable toner dispenser

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563734A (en) * 1964-10-14 1971-02-16 Minnesota Mining & Mfg Electrographic process
US3480361A (en) * 1966-02-03 1969-11-25 Konishiroku Photo Ind Photographic copying machine
US3552957A (en) * 1967-03-06 1971-01-05 Eastman Kodak Co Clamped photoconductive unit for electrophotography
US3649115A (en) * 1969-09-26 1972-03-14 Eastman Kodak Co Pick off means for an electrostatic reproduction device
US3706489A (en) * 1970-04-24 1972-12-19 Minnesota Mining & Mfg Copying and duplicating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103445A (en) * 1963-09-10 Method of developing an electrostatic
US3088386A (en) * 1959-11-16 1963-05-07 American Photocopy Equip Co Electrophotographic photocopy machine
US3152012A (en) * 1960-12-19 1964-10-06 Ibm Apparatus for the development of electrostatic images
US3659556A (en) * 1970-08-19 1972-05-02 Xerox Corp Programmable toner dispenser

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040387A (en) * 1972-09-24 1977-08-09 Mita Industrial Co. Ltd. Electrostatic photographic copying apparatus
US3955533A (en) * 1972-09-27 1976-05-11 Smith Ian E Squeegee roller system for removing excess developer liquid from photoconductive surfaces
JPS50133842A (de) * 1974-03-22 1975-10-23
JPS547582B2 (de) * 1974-03-22 1979-04-07
US4026242A (en) * 1974-06-28 1977-05-31 Grafosol S.P.A. Matrix supporting device in electrostatic development apparatus
US3954331A (en) * 1974-11-20 1976-05-04 Xerox Corporation Toner dispenser
US3958878A (en) * 1974-11-20 1976-05-25 Xerox Corporation Electrostatic processor having interchangable reservoirs for supplying and reclaiming toner
US3999514A (en) * 1975-09-29 1976-12-28 International Business Machines Corporation Magnetic brush developer
US4033691A (en) * 1975-10-30 1977-07-05 Xerox Corporation Variable magnification reproducing apparatus
US4120263A (en) * 1976-02-26 1978-10-17 Grafosol S.P.A. Matrix supporting devices in electrostatic development apparatus
JPS52167938U (de) * 1976-06-12 1977-12-20
JPS5611085Y2 (de) * 1976-06-12 1981-03-12
US4101211A (en) * 1976-07-12 1978-07-18 Eastman Kodak Company Magnetic curtain seal for development apparatus
JPS5522702U (de) * 1978-07-31 1980-02-14
JPS5642692Y2 (de) * 1978-07-31 1981-10-06
US4344692A (en) * 1979-03-15 1982-08-17 Tokyo Shibaura Denki Kabushiki Kaisha Developer transportation device for electrostatic copying machine
US4451133A (en) * 1981-04-30 1984-05-29 Siemens Aktiengesellschaft Device for removing the developer mix from a developing station
US4449810A (en) * 1981-07-10 1984-05-22 Ricoh Company, Ltd. Electrophotographic copying machine with means for mixing and removing toner and an integral exposure plate
US4500196A (en) * 1981-08-19 1985-02-19 Ricoh Company, Ltd. Photoconductive element cleaning apparatus and residual toner collecting apparatus
US4910602A (en) * 1984-06-12 1990-03-20 Canon Kabushiki Kaisha Thermal recorder with ink sheet cassette removably mounted in openable housing
US4845523A (en) * 1984-09-11 1989-07-04 Sharp Kabushiki Kaisha A developing device for an electrophotographic copying machine
US4932355A (en) * 1985-10-09 1990-06-12 Siemens Aktiengesellschaft Method for removing a developer mix from a developing station
US4775874A (en) * 1986-06-20 1988-10-04 Siemens Aktiegesellschaft Magnetic closing and conveying mechanism for non-mechanical printer or copier devices
US4919071A (en) * 1987-11-05 1990-04-24 Bull Hn Information Systems Italia S.P.A. Dry toner removable developing cartridge
JPH03246556A (ja) * 1990-12-27 1991-11-01 Canon Inc プロセスカートリッジ及びこのプロセスカートリッジが着脱自在な画像形成装置
US5294968A (en) * 1991-07-09 1994-03-15 Konica Corporation Developing unit and drive transmission attachment
DE4221919B4 (de) * 1991-07-09 2007-08-02 Konica Corp. Entwicklungseinheit
US5572299A (en) * 1991-11-08 1996-11-05 Fujitsu Limited Developing device using two-component developer
DE4243096A1 (en) * 1991-12-20 1993-06-24 Fujitsu Ltd Developer unit for photocopier using two=component developer - has rotating magnetic roller feed with fixed gauging blade, helical screw rollers and paddle for distribution control and mixing
US5499082A (en) * 1991-12-20 1996-03-12 Fujitsu Limited Developing device using two-component type developer having doctor blade resiliently abutted against openings in vessel and an outlet portion in vessel to discharge the developer
US20100054779A1 (en) * 2008-08-29 2010-03-04 Kyocera Mita Corporation Developing device and image forming apparatus
US8538301B2 (en) * 2008-08-29 2013-09-17 Kyocera Mita Corporation Developing device and image forming apparatus with soft blocking dissolving features

Also Published As

Publication number Publication date
DE2167138B2 (de) 1981-03-26
DE2167138C3 (de) 1981-11-26
US3834808A (en) 1974-09-10
DE2166638B2 (de) 1980-01-03
DE2166638C3 (de) 1980-09-04
DE2167139B1 (de) 1981-02-05
DE2165416B2 (de) 1979-08-09
DE2166638A1 (de) 1974-12-19
DE2165416A1 (de) 1972-07-27
DE2167104C2 (de) 1982-08-12
DE2165416C3 (de) 1980-08-14

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