DE2516012C2 - - Google Patents

Info

Publication number
DE2516012C2
DE2516012C2 DE2516012A DE2516012A DE2516012C2 DE 2516012 C2 DE2516012 C2 DE 2516012C2 DE 2516012 A DE2516012 A DE 2516012A DE 2516012 A DE2516012 A DE 2516012A DE 2516012 C2 DE2516012 C2 DE 2516012C2
Authority
DE
Germany
Prior art keywords
developer
electrode
potential
area
electrodes
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
DE2516012A
Other languages
German (de)
English (en)
Other versions
DE2516012A1 (de
Inventor
Louis F. Palo Alto Calif. Us Schaefer
Kenneth W. Menlo Park Calif. Us Gardiner
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 Corp
Original Assignee
Savin 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 Corp filed Critical Savin Corp
Publication of DE2516012A1 publication Critical patent/DE2516012A1/de
Application granted granted Critical
Publication of DE2516012C2 publication Critical patent/DE2516012C2/de
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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing For Electrophotography (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
DE19752516012 1974-06-17 1975-04-12 Vorrichtung zur automatischen kontrolle des vorspannungspotentials einer entwicklerelektrode bei einem elektro- statischen kopiergeraet Granted DE2516012A1 (de)

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
DE2516012A1 DE2516012A1 (de) 1976-01-02
DE2516012C2 true DE2516012C2 (US06582424-20030624-M00016.png) 1987-08-13

Family

ID=23904891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752516012 Granted DE2516012A1 (de) 1974-06-17 1975-04-12 Vorrichtung zur automatischen kontrolle des vorspannungspotentials einer entwicklerelektrode bei einem elektro- statischen kopiergeraet

Country Status (7)

Country Link
US (1) US3892481A (US06582424-20030624-M00016.png)
JP (1) JPS6158829B2 (US06582424-20030624-M00016.png)
CA (1) CA1149154A (US06582424-20030624-M00016.png)
DE (1) DE2516012A1 (US06582424-20030624-M00016.png)
FR (1) FR2280117A1 (US06582424-20030624-M00016.png)
GB (1) GB1483400A (US06582424-20030624-M00016.png)
IT (1) IT1034714B (US06582424-20030624-M00016.png)

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 (ja) * 1974-06-10 1983-02-16 株式会社リコー 湿式現像装置
US4141643A (en) * 1974-09-13 1979-02-27 Ricoh Company, Ltd. Developing electrode arrangement for electrophotographic apparatus
JPS5441502B2 (US06582424-20030624-M00016.png) * 1974-10-21 1979-12-08
DE2550846C2 (de) * 1974-11-12 1983-11-17 Ricoh Co., Ltd., Tokyo Entwicklungseinrichtung für ein elektrophotographisches Kopiergerät
JPS5174634A (en) * 1974-12-24 1976-06-28 Ricoh Kk Denshishashinno baiasugenzohoho
JPS5187046A (en) * 1975-01-28 1976-07-30 Ricoh Kk Serufuootobaiasushikidenshishashingenzosochi
JPS5911106B2 (ja) * 1975-04-04 1984-03-13 株式会社リコー オ−トバイアス現像方法
US3981267A (en) * 1975-05-20 1976-09-21 Savin Business Machines Corporation Electrophotographic liquid developing system
JPS5833551B2 (ja) * 1975-10-01 1983-07-20 株式会社リコー デンシシヤシンフクシヤキニオケル オ−トバイアスゲンゾウホウホウ
JPS5815789B2 (ja) * 1975-10-01 1983-03-28 株式会社リコー デンシシヤシンフクシヤキニオケル オ−トバイアスゲンゾウホウホウ
US4183655A (en) * 1975-10-07 1980-01-15 Ricoh Company, Ltd. Cleaning means for image transfer unit in electrophotographic copying machines
CA1091756A (en) * 1975-10-14 1980-12-16 Eastman Kodak Company Electrophotographic apparatus having compensation for changes in sensitometric properties of photoconductors
CA1103744A (en) * 1975-10-14 1981-06-23 Eastman Kodak Company Electrophotographic apparatus having compensation for rest-run performance variations
JPS5293340A (en) * 1976-02-02 1977-08-05 Ricoh Co Ltd Electronic photographic picture adjustment
JPS6044653B2 (ja) * 1976-05-17 1985-10-04 株式会社リコー 現像バイアス自動制御方法及びその装置
US4044718A (en) * 1976-09-10 1977-08-30 Xonics, Inc. Electrostatic fountain developer
DE2655158C2 (de) * 1976-12-06 1986-04-03 Hoechst Ag, 6230 Frankfurt Verfahren und Vorrichtung zum Entwickeln eines elektrostatischen latenten Ladungsbildes
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 (US06582424-20030624-M00016.png) * 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 (de) * 1990-06-06 1996-01-04 Mitsubishi Paper Mills Ltd Verfahren zur elektrophotographischen Umkehr-Naßentwicklung
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 (ja) * 1995-02-01 2000-02-28 日本ビクター株式会社 静電潜像の現像方法及びその装置
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 (fr) * 1969-08-29 1971-03-01 Xerox Corp Appareil pour le controle d'electrodes de developpement
US3654893A (en) * 1970-05-01 1972-04-11 Eastman Kodak Co Automatic bias control for electrostatic development
JPS497014A (US06582424-20030624-M00016.png) * 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

Also Published As

Publication number Publication date
JPS511144A (US06582424-20030624-M00016.png) 1976-01-07
FR2280117A1 (fr) 1976-02-20
DE2516012A1 (de) 1976-01-02
GB1483400A (en) 1977-08-17
US3892481A (en) 1975-07-01
IT1034714B (it) 1979-10-10
JPS6158829B2 (US06582424-20030624-M00016.png) 1986-12-13
CA1149154A (en) 1983-07-05
FR2280117B1 (US06582424-20030624-M00016.png) 1977-04-15

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: SAVIN CORP., 10595 VALHALLA, N.Y., US

8128 New person/name/address of the agent

Representative=s name: STELLRECHT, W., DIPL.-ING. M.SC. GRIESSBACH, D., D

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SAVIN CORP., STAMFORD, CONN., US

8339 Ceased/non-payment of the annual fee