CA972552A - Controlling multiple voltage levels for electrostatic printing - Google Patents

Controlling multiple voltage levels for electrostatic printing

Info

Publication number
CA972552A
CA972552A CA141,954A CA141954A CA972552A CA 972552 A CA972552 A CA 972552A CA 141954 A CA141954 A CA 141954A CA 972552 A CA972552 A CA 972552A
Authority
CA
Canada
Prior art keywords
voltage levels
electrostatic printing
multiple voltage
controlling multiple
controlling
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
CA141,954A
Other languages
English (en)
Other versions
CA141954S (en
Inventor
Ronald F. Feldeisen
Michael R. Stanley
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
Xerox 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 Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of CA972552A publication Critical patent/CA972552A/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
    • G03G15/0907—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with bias voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing For Electrophotography (AREA)
  • Color Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
CA141,954A 1971-06-11 1972-05-12 Controlling multiple voltage levels for electrostatic printing Expired CA972552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00152138A US3805739A (en) 1971-06-11 1971-06-11 Controlling multiple voltage levels for electrostatic printing

Publications (1)

Publication Number Publication Date
CA972552A true CA972552A (en) 1975-08-12

Family

ID=22541663

Family Applications (1)

Application Number Title Priority Date Filing Date
CA141,954A Expired CA972552A (en) 1971-06-11 1972-05-12 Controlling multiple voltage levels for electrostatic printing

Country Status (5)

Country Link
US (1) US3805739A (xx)
CA (1) CA972552A (xx)
DE (1) DE2227709C3 (xx)
GB (1) GB1382710A (xx)
NL (1) NL170893C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496644A (en) * 1983-02-28 1985-01-29 Eastman Kodak Company Electric field adjustment for magnetic brushes

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510070B2 (xx) * 1973-05-10 1980-03-13
US3901189A (en) * 1974-01-28 1975-08-26 Xerox Corp Magnetic brush developing apparatus
USRE31964E (en) * 1974-06-17 1985-08-06 Savin Corporation Automatic development electrode bias control system
US3996892A (en) * 1975-02-24 1976-12-14 Xerox Corporation Spatially programmable electrode-type roll for electrostatographic processors and the like
US3981268A (en) * 1975-06-11 1976-09-21 Fuji Xerox Co., Ltd. Device for controlling electric potential applied to developing electrode in an electrophotographic duplicator
US4149487A (en) * 1977-08-30 1979-04-17 Xerox Corporation Xerographic machine with infinitely variable developer bias
JPS5497039A (en) * 1978-01-17 1979-07-31 Konishiroku Photo Ind Co Ltd Bias voltage change-over circuit for image density control of copier
JPS5497038A (en) * 1978-01-17 1979-07-31 Konishiroku Photo Ind Co Ltd Image density controller for zerographic copier
US4755850A (en) * 1981-01-13 1988-07-05 Canon Kabushiki Kaisha Electrostatic recording apparatus including a controlled developer device
JPS5842070A (ja) * 1981-09-08 1983-03-11 Canon Inc 画像形成装置
NL8200825A (nl) * 1982-03-02 1983-10-03 Oce Nederland Bv Elektrofotografisch kopieerapparaat.
US4500198A (en) * 1982-12-10 1985-02-19 International Business Machines Corporation Multiple roller magnetic brush developer having development electrode voltage switching
JPH0690556B2 (ja) * 1985-06-18 1994-11-14 富士通株式会社 電子写真式記録装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890968A (en) * 1955-06-02 1959-06-16 Rca Corp Electrostatic printing process and developer composition therefor
US3037478A (en) * 1957-10-23 1962-06-05 American Photocopy Equip Co Apparatus for developing electrophotographic sheet
US3152012A (en) * 1960-12-19 1964-10-06 Ibm Apparatus for the development of electrostatic images
GB1063203A (en) * 1962-10-02 1967-03-30 Australia Res Lab Method of and means for the transfer of images
US3185051A (en) * 1962-10-16 1965-05-25 Xerox Corp Xerographic method
US3219014A (en) * 1962-12-04 1965-11-23 Xerox Corp Mechanical shield to protect magnetic core in xerographic developing apparatus
BE655347A (xx) * 1963-11-05
US3654893A (en) * 1970-05-01 1972-04-11 Eastman Kodak Co Automatic bias control for electrostatic development

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496644A (en) * 1983-02-28 1985-01-29 Eastman Kodak Company Electric field adjustment for magnetic brushes

Also Published As

Publication number Publication date
NL7207843A (xx) 1972-12-13
DE2227709C3 (de) 1981-09-17
NL170893C (nl) 1983-01-03
DE2227709B2 (de) 1981-01-29
DE2227709A1 (de) 1972-12-28
NL170893B (nl) 1982-08-02
GB1382710A (en) 1975-02-05
US3805739A (en) 1974-04-23

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