JPS5797551A - Magnetic brush developing device - Google Patents

Magnetic brush developing device

Info

Publication number
JPS5797551A
JPS5797551A JP17374180A JP17374180A JPS5797551A JP S5797551 A JPS5797551 A JP S5797551A JP 17374180 A JP17374180 A JP 17374180A JP 17374180 A JP17374180 A JP 17374180A JP S5797551 A JPS5797551 A JP S5797551A
Authority
JP
Japan
Prior art keywords
sleeve
magnetic brush
power source
component
power sources
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.)
Pending
Application number
JP17374180A
Other languages
Japanese (ja)
Inventor
Izumi Tagiwa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP17374180A priority Critical patent/JPS5797551A/en
Publication of JPS5797551A publication Critical patent/JPS5797551A/en
Pending 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

Abstract

PURPOSE:To improve the quality of a copied image, by deviating an AC bias potential, applied to a magnetic brush sleeve, by a DC component. CONSTITUTION:A single AC power source A and DC power sources D1, D2- are connected together in series, and between the DC power sources and to one terminal, magnetic brush sleeves S1, S2- are connected. Therefore, the sleeve S1 is applied with a current obtained by superposing a high-frequency alternating current from the power source A and a direct current from the power source D1 to each other, and a high-frequency AC bias potential is deviated by the DC component. Similarly, the sleeve S2 is applied with a bias voltage deviated by DC potentials from the power sources D1 and D2. Further, the DC deviation component of an AC potential applied to each sleeve is different from one another.
JP17374180A 1980-12-11 1980-12-11 Magnetic brush developing device Pending JPS5797551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17374180A JPS5797551A (en) 1980-12-11 1980-12-11 Magnetic brush developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17374180A JPS5797551A (en) 1980-12-11 1980-12-11 Magnetic brush developing device

Publications (1)

Publication Number Publication Date
JPS5797551A true JPS5797551A (en) 1982-06-17

Family

ID=15966261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17374180A Pending JPS5797551A (en) 1980-12-11 1980-12-11 Magnetic brush developing device

Country Status (1)

Country Link
JP (1) JPS5797551A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153968A (en) * 1982-03-02 1983-09-13 オセ−ネ−デルランド・ベ−・ヴエ− Electrophotographic type copying machine
JPS60179766A (en) * 1984-02-27 1985-09-13 Konishiroku Photo Ind Co Ltd Developing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105237A (en) * 1977-02-25 1978-09-13 Ricoh Co Ltd Electrophotographic developing device
JPS5512962A (en) * 1978-07-14 1980-01-29 Ricoh Co Ltd Electrophotographic copy
JPS55105267A (en) * 1979-02-06 1980-08-12 Canon Inc Method and device for developing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105237A (en) * 1977-02-25 1978-09-13 Ricoh Co Ltd Electrophotographic developing device
JPS5512962A (en) * 1978-07-14 1980-01-29 Ricoh Co Ltd Electrophotographic copy
JPS55105267A (en) * 1979-02-06 1980-08-12 Canon Inc Method and device for developing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153968A (en) * 1982-03-02 1983-09-13 オセ−ネ−デルランド・ベ−・ヴエ− Electrophotographic type copying machine
JPH0342476B2 (en) * 1982-03-02 1991-06-27
JPS60179766A (en) * 1984-02-27 1985-09-13 Konishiroku Photo Ind Co Ltd Developing device
JPH0444752B2 (en) * 1984-02-27 1992-07-22 Konishiroku Photo Ind

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