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Primary Examiner: Smith, Ronald H.
Assistant Examiner: Frenkel, Stuart D.
Attorney: Sherman & Shalloway

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Title: Method for developing electrostatic latent images

Abstract: Method and apparatus for developing an electrostatic latent image formed on the surface of an electrostatic latent image-bearing material by applying a powdery developer, wherein the surface of a developer-retaining member retaining a layer of the powdery developer thereon is brought into rolling contact with the surface of the image-bearing material in such a relation that a reservoir zone of the developer is formed at least upstream of the zone of rolling contact between the two surfaces, and the developer in the reservoir zone is physically disturbed.

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Inventors: Nishihama, Hitoshi (Hirakata, JA)
Gotoda, Katsuhiko (Osaka, JA)
Motomura, Minoru (Nara, JA)
Nakajima, Takanobu (Kashihara, JA)
Aizawa, Tatsuo (Osaka, JA)

Application Number: 599953
Filing Date: 1975-07-29
Publication_date: 1978-03-28
Assignee: Mita Industrial Co. Ltd. (Osaka, JA)
Primary Class(es): 430/120 399/310, 427/469, 427/598
Other Classes:
US Patent Ref:

3552355	Jan, 1971	Flint	118/637.
3641977	Feb, 1972	Hudson	118/637.
3666518	May, 1972	Luttman et al.	427/18.
3703395	Nov, 1972	Drexler et al.	427/18.
3754963	Aug, 1973	Chang	427/14.
3793985	Feb, 1974	Hagenbach	427/14.
3834350	Sep, 1974	Hodges	118/637.
3839992	Oct, 1974	Takahashi	118/657.

Other Refs: Other References: IBM Technical Disclosure Bulletin, "Magnet Configuration For Magnetic Brush Developer," R. J. Hoekzema, vol. 14, No. 9, Feb. 1972 pp. 2787-2788.