FR2280117A1 - SYSTEM FOR AUTOMATIC ADJUSTMENT OF DEVELOPMENT POLARIZATION IN AN ELECTROSTATIC PHOTOCOPYING MACHINE - Google Patents

SYSTEM FOR AUTOMATIC ADJUSTMENT OF DEVELOPMENT POLARIZATION IN AN ELECTROSTATIC PHOTOCOPYING MACHINE

Info

Publication number
FR2280117A1
FR2280117A1 FR7510654A FR7510654A FR2280117A1 FR 2280117 A1 FR2280117 A1 FR 2280117A1 FR 7510654 A FR7510654 A FR 7510654A FR 7510654 A FR7510654 A FR 7510654A FR 2280117 A1 FR2280117 A1 FR 2280117A1
Authority
FR
France
Prior art keywords
automatic adjustment
photocopying machine
electrostatic photocopying
development polarization
polarization
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
FR7510654A
Other languages
French (fr)
Other versions
FR2280117B1 (en
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.)
Savin Business Machines Corp
Original Assignee
Savin 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 Savin Business Machines Corp filed Critical Savin Business Machines Corp
Publication of FR2280117A1 publication Critical patent/FR2280117A1/en
Application granted granted Critical
Publication of FR2280117B1 publication Critical patent/FR2280117B1/fr
Granted 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
    • G03G15/065—Arrangements for controlling the potential of the developing electrode
    • 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
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
FR7510654A 1974-06-17 1975-04-04 SYSTEM FOR AUTOMATIC ADJUSTMENT OF DEVELOPMENT POLARIZATION IN AN ELECTROSTATIC PHOTOCOPYING MACHINE Granted FR2280117A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479659A US3892481A (en) 1974-06-17 1974-06-17 Automatic development electrode bias control system

Publications (2)

Publication Number Publication Date
FR2280117A1 true FR2280117A1 (en) 1976-02-20
FR2280117B1 FR2280117B1 (en) 1977-04-15

Family

ID=23904891

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510654A Granted FR2280117A1 (en) 1974-06-17 1975-04-04 SYSTEM FOR AUTOMATIC ADJUSTMENT OF DEVELOPMENT POLARIZATION IN AN ELECTROSTATIC PHOTOCOPYING MACHINE

Country Status (7)

Country Link
US (1) US3892481A (en)
JP (1) JPS6158829B2 (en)
CA (1) CA1149154A (en)
DE (1) DE2516012A1 (en)
FR (1) FR2280117A1 (en)
GB (1) GB1483400A (en)
IT (1) IT1034714B (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025184A (en) * 1974-01-21 1977-05-24 Ricoh Co., Ltd. Developing electrode contamination prevention system for electrophotography
US4050806A (en) * 1974-05-10 1977-09-27 Ricoh Co., Ltd. Method and apparatus for electrically biasing developing electrode of electrophotographic device
US4129375A (en) * 1974-05-10 1978-12-12 Ricoh Company, Ltd. Method and apparatus for electrically biasing developing electrode of electrophotography device
JPS588507B2 (en) * 1974-06-10 1983-02-16 株式会社リコー Wet developing device
US4141643A (en) * 1974-09-13 1979-02-27 Ricoh Company, Ltd. Developing electrode arrangement for electrophotographic apparatus
JPS5441502B2 (en) * 1974-10-21 1979-12-08
DE2550846C2 (en) * 1974-11-12 1983-11-17 Ricoh Co., Ltd., Tokyo Developing device for an electrophotographic copier
JPS5174634A (en) * 1974-12-24 1976-06-28 Ricoh Kk Denshishashinno baiasugenzohoho
JPS5187046A (en) * 1975-01-28 1976-07-30 Ricoh Kk Serufuootobaiasushikidenshishashingenzosochi
JPS5911106B2 (en) * 1975-04-04 1984-03-13 株式会社リコー Auto bias development method
US3981267A (en) * 1975-05-20 1976-09-21 Savin Business Machines Corporation Electrophotographic liquid developing system
JPS5833551B2 (en) * 1975-10-01 1983-07-20 株式会社リコー Denshisha Shin Fukushi Yakiniokeru Auto Bias Genzohouhou
JPS5815789B2 (en) * 1975-10-01 1983-03-28 株式会社リコー Denshisha Shin Fukushi Yakiniokeru Auto Bias Genzohouhou
US4183655A (en) * 1975-10-07 1980-01-15 Ricoh Company, Ltd. Cleaning means for image transfer unit in electrophotographic copying machines
CA1103744A (en) * 1975-10-14 1981-06-23 Eastman Kodak Company Electrophotographic apparatus having compensation for rest-run performance variations
CA1091756A (en) * 1975-10-14 1980-12-16 Eastman Kodak Company Electrophotographic apparatus having compensation for changes in sensitometric properties of photoconductors
JPS5293340A (en) * 1976-02-02 1977-08-05 Ricoh Co Ltd Electronic photographic picture adjustment
JPS6044653B2 (en) * 1976-05-17 1985-10-04 株式会社リコー Developing bias automatic control method and device
US4044718A (en) * 1976-09-10 1977-08-30 Xonics, Inc. Electrostatic fountain developer
DE2655158C2 (en) * 1976-12-06 1986-04-03 Hoechst Ag, 6230 Frankfurt Method and apparatus for developing an electrostatic latent image
US4244321A (en) * 1978-02-14 1981-01-13 James River Graphics, Inc. Electrographic development electrode
US4266870A (en) * 1978-03-09 1981-05-12 Ricoh Company, Ltd. Electrostatographic apparatus comprising developing bias means
JPS552270A (en) * 1978-06-21 1980-01-09 Ricoh Co Ltd Bias device of copying machine
GB2039101B (en) * 1978-08-24 1983-05-25 Canon Kk Control of electrostatic recording apparatus
USRE30477E (en) * 1979-05-10 1981-01-13 Savin Corporation Electrophotographic liquid developing system
US4373800A (en) * 1979-12-03 1983-02-15 Ricoh Company, Ltd. Wet type electrophotographic copying machine
US4326796A (en) * 1979-12-13 1982-04-27 International Business Machines Corporation Apparatus and method for measuring and maintaining copy quality in an electrophotographic copier
US4669859A (en) * 1982-03-23 1987-06-02 Ricoh Company, Ltd. Developing device
US4678317A (en) * 1985-11-04 1987-07-07 Savin Corporation Charge and bias control system for electrophotographic copier
EP0240042A1 (en) * 1986-02-25 1987-10-07 Coulter Stork Patents B.V. Method and device for the development of a latent electrostatic image
US4843425A (en) * 1986-09-12 1989-06-27 Konishiroku Photo Industry Co., Ltd. Image forming method and apparatus
US4761671A (en) * 1987-02-02 1988-08-02 Eastman Kodak Company Electrophotographic subprocess for apparatus using discharged area toning
JPH0278967U (en) * 1988-12-05 1990-06-18
US4984019A (en) * 1990-02-26 1991-01-08 Xerox Corporation Electrode wire cleaning
US4957213A (en) * 1990-03-05 1990-09-18 White Dennis H Card file stop
DE4118434C2 (en) * 1990-06-06 1996-01-04 Mitsubishi Paper Mills Ltd A method of electrophotographic reversible wet development
CA2062230C (en) * 1991-03-04 1999-03-09 Yoshiaki Okano Electrophotographic printing apparatus capable of printing images by electrophotographic processing and its start-up method
US5243391A (en) * 1992-05-01 1993-09-07 Printware, Inc. Varying an electric field, during development of a latent electrostatic image with developer solution, in proportion to a sensed concentration of toner that is within the developer solution
JP3013877B2 (en) * 1995-02-01 2000-02-28 日本ビクター株式会社 Method and apparatus for developing electrostatic latent image
US5748217A (en) * 1995-11-16 1998-05-05 Phoenix Precision Graphics, Inc. Charge compensation circuit for an electrostatic writing head

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2956487A (en) * 1955-03-23 1960-10-18 Rca Corp Electrostatic printing
BE755383A (en) * 1969-08-29 1971-03-01 Xerox Corp APPARATUS FOR THE CONTROL OF DEVELOPMENT ELECTRODES
US3654893A (en) * 1970-05-01 1972-04-11 Eastman Kodak Co Automatic bias control for electrostatic development
JPS497014A (en) * 1972-05-08 1974-01-22
US3788739A (en) * 1972-06-21 1974-01-29 Xerox Corp Image compensation method and apparatus for electrophotographic devices
US3782818A (en) * 1972-11-17 1974-01-01 Savin Business Machines Corp System for reducing background developer deposition in an electrostatic copier
US3815988A (en) * 1973-05-17 1974-06-11 Xerox Corp Image density control apparatus
US3835380A (en) * 1973-08-14 1974-09-10 Xerox Corp Electrometer system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
DE2516012A1 (en) 1976-01-02
GB1483400A (en) 1977-08-17
US3892481A (en) 1975-07-01
FR2280117B1 (en) 1977-04-15
IT1034714B (en) 1979-10-10
DE2516012C2 (en) 1987-08-13
JPS511144A (en) 1976-01-07
JPS6158829B2 (en) 1986-12-13
CA1149154A (en) 1983-07-05

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse