Cleaning unit for cleaning recording medium of an electrophotogr

Details Cleaning unit for cleaning recording medium of an electrophotogr Cleaning unit for cleaning recording medium of an electrophotogr

1988-12-14

1991-01-08

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355298, G03G 2100

Patent

active

049840282

ABSTRACT:
A toner image transfer type recording apparatus having a cleaning unit for removing residual contaminants from the surface of a rotating recording drum after toner image transfer. The cleaning unit includes a blade which engages the surface of the drum, a rotatable cleaning cylinder disposed immediately upstream from the blade, and a housing structure surrounding the blade and the rotatable brush. The housing is evacuated by an air pump connected thereto, causing external air to be introduced through an opening of the housing to facilitate removal of the contaminants from the housing.

REFERENCES:
patent: 3278972 (1966-10-01), Hudson
patent: 4361922 (1982-12-01), Karal
patent: 4364660 (1982-12-01), Oda
patent: 4390268 (1983-06-01), Furuichi et al.
patent: 4411042 (1983-10-01), Sakata et al.
patent: 4451139 (1984-05-01), Yanagawa et al.
patent: 4601569 (1986-07-01), Garris
patent: 4806981 (1989-02-01), Ishiguro et al.

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