Title: Magnetic brush type developing mechanism in electrophotographic copying machine

Abstract: A magnetic brush type developing mechanism is electronic copying machine characterized in that each of the developing rolls having a cylindrical multipole fixed magnet is provided with a magnetized pole or poles in other part than the developing region.

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Inventors: Handa, Kenichi (Ebina, JA)

Application Number: 472375
Filing Date: 1974-05-22
Publication_date: 1976-02-10
Assignee: Fuji Xerox Co., Ltd. (Tokyo, JA)
Primary Class(es): 399/269
Other Classes:
US Patent Ref:

3318284	May, 1967	Hojo et al.	118/637.
3392432	Jul, 1968	Naumann	117/17.
3402698	Sep, 1968	Kojima et al.	117/17.
3455276	Jul, 1969	Anderson	118/637.
3543720	Dec, 1970	Drexler	118/637.
3572289	Mar, 1971	Maksymiak	117/17.
3641980	Feb, 1972	Bickmore	118/637.
3754526	Dec, 1971	Caudill	118/637.
3828730	Aug, 1974	Yamashita	118/637.
3839992	Oct, 1974	Takahashi	118/637.

Other Refs:
Primary Examiner: Feldbaum, Ronald
Assistant Examiner:
Attorney: Ferguson, Jr.; Gerald J., Baker; Joseph J.