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Primary Examiner: Stein, Mervin
Assistant Examiner: Salser, Douglas
Attorney: Wenderoth, Lind & Ponack

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Title: Residual toner removing apparatus

Abstract: A residual toner removing apparatus which comprises a rotatable cleaning brush enclosed, except for two gaps, by a casing plate and a restriction board housed in a housing with an opening adjacent to a known photoreceptor surface. During rotation, brush hairs contact the casing plate to charge it with opposite polarity to toner particles, while the bursh hairs are compressed by the restriction board, thus the cleaning brush acting like a fan for circulation of air and entrained toner particles, which toner particles are mostly attracted by the casing plate and the housing wall forming an air flow chamber. A scraper actuated manually or motor-driven automatically at arbitrary times is advantageously provided in the air flow chamber for scraping off the adhering toner particles.

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Inventors: Kurita, Takaji (Kawachinagano, JA)
Fujiwara, Takao (Sakai, JA)

Application Number: 445337
Filing Date: 1974-02-25
Publication_date: 1976-03-09
Assignee: Minolta Camera Kabushiki Kaisha (Osaka, JA)
Primary Class(es): 399/354 15/1.51, 15/256.52
Other Classes:
US Patent Ref:

2751616	Jun, 1956	Turne, Jr. et al.	118/637.
3132037	May, 1964	Hunter	118/637.
3483679	Dec, 1969	Balbierer	118/637.
3534427	Oct, 1970	Severynse	355/15.
3590412	Jul, 1971	Gerbasi	15/1.
3655373	Apr, 1972	Fisher et al.	96/1.
3685485	Aug, 1972	Kutsuwada et al.	355/15.
3780391	Dec, 1973	Leenhouts	355/15.
3795025	Mar, 1974	Sadamitsu	355/15.

Other Refs: Other References: IBM Technical Disclosure Bulletin; Brush Cleaning Method; Krause, K.A.; Vol. 12 No. 11 Apr. 70 p. 1822.
IBM Technical Disclosure Bulletin; Brush Cleaner with Electrostatic Precipitator; Roller et al.; Vol. 15, No. 12, May 73, p. 3643.