ES397448A1 - Copying system featuring combined developing-cleaning station alternately activated - Google Patents

Copying system featuring combined developing-cleaning station alternately activated

Info

Publication number
ES397448A1
ES397448A1 ES397448A ES397448A ES397448A1 ES 397448 A1 ES397448 A1 ES 397448A1 ES 397448 A ES397448 A ES 397448A ES 397448 A ES397448 A ES 397448A ES 397448 A1 ES397448 A1 ES 397448A1
Authority
ES
Spain
Prior art keywords
photoconductor
developing
incorporates
cleaning
photoconductor surface
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
Application number
ES397448A
Other languages
Spanish (es)
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of ES397448A1 publication Critical patent/ES397448A1/en
Expired 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
    • 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
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for 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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0047—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using electrostatic or magnetic means; Details thereof, e.g. magnetic pole arrangement of magnetic devices
    • 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
    • G03G2221/0005—Cleaning of residual toner

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

Electrophotographic copying apparatus has charging, imaging, transferring, precleaning, and erasing facilities in a conventional sense but incorporates a combined developing-cleaning unit that is operable to perform either function at the proper time during the copying sequence. A first version incorporates a photoconductor drum structure surrounded with the necessary electrophotographic elements including a single developer-cleaner unit. Another version incorporates a photoconductor belt movable forwardly and reversely. In either version, cleaning cycles may alternate with developing cycles or be activated following the production of a high number of images on the photoconductor surface. Conveniently, a magnetic brush element forms a contacting surface for conveying toner onto the photoconductor surface during developing and for scavenging residual toner from the photoconductor surface by bringing developer mixture into contact with the photoconductor surface during cleaning. Appropriate changes in biasing of the brush are made during operation.
ES397448A 1970-12-01 1971-11-29 Copying system featuring combined developing-cleaning station alternately activated Expired ES397448A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9403770A 1970-12-01 1970-12-01

Publications (1)

Publication Number Publication Date
ES397448A1 true ES397448A1 (en) 1974-05-16

Family

ID=22242433

Family Applications (1)

Application Number Title Priority Date Filing Date
ES397448A Expired ES397448A1 (en) 1970-12-01 1971-11-29 Copying system featuring combined developing-cleaning station alternately activated

Country Status (8)

Country Link
US (1) US3647293A (en)
JP (3) JPS5721706B1 (en)
AU (1) AU460880B2 (en)
BE (1) BE775465A (en)
CA (1) CA944012A (en)
ES (1) ES397448A1 (en)
FR (1) FR2117089A5 (en)
IT (1) IT940700B (en)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190464A (en) * 1971-06-03 1980-02-26 Canon Kabushiki Kaisha Method for cleaning a photoconductive surface with liquid toner
US4185909A (en) * 1972-04-13 1980-01-29 Canon Kabushiki Kaisha Cleaning method and device for electrophotographic machine
NL7305054A (en) * 1972-04-13 1973-10-16
US4330199A (en) * 1972-04-13 1982-05-18 Canon Kabushiki Kaisha Electrophotographic device
JPS567237B2 (en) * 1972-11-30 1981-02-17
JPS5054333A (en) * 1973-09-10 1975-05-14
US3893416A (en) * 1973-12-27 1975-07-08 Xerox Corp Development and cleaning apparatus for reverse path machine
DE2424350C3 (en) * 1974-05-20 1984-10-04 Elfotec AG, Zumikon Electrophotographic imaging method using magnetic one-component toner
JPS6015943B2 (en) * 1974-05-28 1985-04-23 株式会社リコー electronic copying device
US4086873A (en) * 1974-07-09 1978-05-02 Konishiroku Photo Industry Co., Ltd. Electrophotographic developing device incorporating a developing electrode having an insulation layer on its surface
US3982830A (en) * 1974-12-06 1976-09-28 International Business Machines Corporation Magnetic bead carryout reduction by altering the developer's bias voltage
GB1535398A (en) * 1975-06-13 1978-12-13 Tokyo Shibaura Electric Co Electrostatic copying apparatus
DE2547118B2 (en) * 1975-10-21 1977-12-08 Elfotec Ag, Zumikon (Schweiz) USE OF A SINGLE COMPONENT MAGNETIC TONER IN AN ELECTROPHOTOGRAPHIC IMAGE RECORDING PROCESS
US4053218A (en) * 1975-11-10 1977-10-11 Xerox Corporation Development system
JPS6034112B2 (en) * 1975-11-11 1985-08-07 株式会社東芝 How to clean an electrophotographic photoreceptor
JPS5264936A (en) * 1975-11-25 1977-05-28 Canon Inc Apparatus for electronic photography
US4201465A (en) * 1975-11-26 1980-05-06 Ricoh Company, Ltd. Drum cleaning process and apparatus for electrophotography
US4185910A (en) * 1976-06-30 1980-01-29 Tokyo Shibaura Electric Co., Ltd. Photoconductive member cleaning device using a magnetic brush for electrostatic copying machines
JPS52141642A (en) * 1977-04-11 1977-11-26 Canon Inc Image forming device
US4179213A (en) * 1978-04-10 1979-12-18 International Business Machines Corporation Vector pinning in an electrophotographic machine
US4183657A (en) * 1978-04-10 1980-01-15 International Business Machines Corporation Dynamic reference for an image quality control system
US4178095A (en) * 1978-04-10 1979-12-11 International Business Machines Corporation Abnormally low reflectance photoconductor sensing system
US4335955A (en) * 1978-04-24 1982-06-22 Ragen Precision Industries, Inc. Electrostatic display apparatus
US4332458A (en) * 1978-10-02 1982-06-01 Pitney Bowes Inc. Table top copy machine
JPS55577A (en) * 1979-04-14 1980-01-05 Canon Inc Image former
JPS55575A (en) * 1979-04-14 1980-01-05 Canon Inc Image former
US4278342A (en) * 1979-09-04 1981-07-14 International Business Machines Corporation Xerographic charging
US4265998A (en) * 1979-11-13 1981-05-05 International Business Machines Corporation Electrophotographic photoreceptive background areas cleaned by backcharge process
JPS55120070A (en) * 1979-12-01 1980-09-16 Canon Inc Image forming device
US4304273A (en) * 1979-12-31 1981-12-08 International Business Machines Corporation Toner container and toner dispensing apparatus
JPS56146155A (en) * 1980-04-15 1981-11-13 Mita Ind Co Ltd Electrostatic copying machine
US4320958A (en) * 1980-10-27 1982-03-23 Xerox Corporation Combined processing unit
JPS57142673A (en) * 1981-02-27 1982-09-03 Sharp Corp Cleaning method
US4465360A (en) * 1981-03-31 1984-08-14 Sharp Kabushiki Kaisha Electrophotographic copying machine
US4415263A (en) * 1981-10-22 1983-11-15 Tetras S.A. Electrophotographic copier apparatus
US4487499A (en) * 1981-10-22 1984-12-11 Tetras, S.A. Synchronized document feed for electrophotographic imaging copier apparatus
JPS58121077A (en) * 1982-01-14 1983-07-19 Fuji Xerox Co Ltd Electrophotographic device
US4500198A (en) * 1982-12-10 1985-02-19 International Business Machines Corporation Multiple roller magnetic brush developer having development electrode voltage switching
US4502778A (en) * 1982-12-27 1985-03-05 International Business Machines Corporation System for monitoring and controlling electrophotographic toner operation
US4609280A (en) * 1983-10-31 1986-09-02 International Business Machines Corporation Xerographic apparatus and process with backside photoconductor imaging
JPS60238866A (en) * 1984-05-12 1985-11-27 Toshiba Corp Recording device
US4544260A (en) * 1984-05-25 1985-10-01 Xerox Corporation Removable processing cartridge for electrostatographic reproducing apparatus
US4556308A (en) * 1984-05-25 1985-12-03 Xerox Corporation Removable processing cartridge for electrostatographic reproducing apparatus
US4547064A (en) * 1984-08-31 1985-10-15 Xerox Corporation Electrostatographic reproducing apparatus
US4589759A (en) * 1984-08-31 1986-05-20 Xerox Corporation Reproducing apparatus with optic scanning module
US4746950A (en) * 1985-01-09 1988-05-24 Ricoh Company, Ltd. Color copier
US4616922A (en) * 1985-04-05 1986-10-14 Minnesota Mining And Manufacturing Company Electrophotographic copying apparatus and process
US4652114A (en) * 1985-04-05 1987-03-24 Minnesota Mining And Manufacturing Company Electrophotographic copying apparatus and process
US4616919A (en) * 1985-09-05 1986-10-14 International Business Machines Corporation Non-contact developer seal
JP2579460B2 (en) * 1985-11-06 1997-02-05 三田工業株式会社 Electrostatic copying machine
JPS62115017U (en) * 1986-01-13 1987-07-22
US4814822A (en) * 1987-06-08 1989-03-21 Xerox Corporation Method and apparatus for automatic "two-up" copying with intermediate latent image copiers
JP2675558B2 (en) * 1987-11-02 1997-11-12 株式会社東芝 Image forming device
JP3217074B2 (en) * 1990-02-20 2001-10-09 株式会社リコー Image forming device
US5229825A (en) * 1991-12-02 1993-07-20 Eastman Kodak Company Magnetic brush laydown/pickup apparatus
EP0747784B1 (en) * 1995-06-07 1999-09-22 Nashua Corporation Article and method for dispensing toner and the like

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2874063A (en) * 1953-03-23 1959-02-17 Rca Corp Electrostatic printing
US2986442A (en) * 1956-07-19 1961-05-30 Century Geophysical Corp Electrophotographic oscillograph for observing slow recurrent signals
US2911330A (en) * 1958-04-11 1959-11-03 Haloid Xerox Inc Magnetic brush cleaning
US3580673A (en) * 1968-08-26 1971-05-25 Xerox Corp Cleaning apparatus
US3572923A (en) * 1968-08-26 1971-03-30 Xerox Corp Cleaning method and apparatus for electrostatic copying machines

Also Published As

Publication number Publication date
JPS5721706B1 (en) 1982-05-08
JPS6213663B2 (en) 1987-03-27
AU3515171A (en) 1973-05-03
CA944012A (en) 1974-03-19
JPS6055830B2 (en) 1985-12-06
IT940700B (en) 1973-02-20
JPS58130369A (en) 1983-08-03
JPS57104166A (en) 1982-06-29
FR2117089A5 (en) 1972-07-21
US3647293B1 (en) 1987-08-18
BE775465A (en) 1972-03-16
US3647293A (en) 1972-03-07
AU460880B2 (en) 1975-05-08

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