Cleaning unit for cleaning recording medium of an...

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

G - Physics

03

G

314/38

G03G 21/00 (2006.01)

Patent

CA 1323654

ABSTRACT OF DISCLOSURE A recording apparatus of toner image transfer type, having an improved cleaning device for removing residual con- taminants on the surface of a notating recording drum after toner image transfer. The cleaning unit includes a blade of counter type engaging with downwardly moving surface of the drum, a rota- table cleaning brush disposed immediately upstream from the blade, and a housing structure shielding the blade and the rotatable fur brush. The housing is evacuated by an air pump, and external air is introduced from an opening of the housing, where the fur brush and the blade engage with the surface of the drum. Thereby, the contaminants removed by the blade and the fur brush from the sur- face of the drum is efficiently discharged by the aid of air flow having velocity enhanced by the above-described pneumatic struc- ture. The air velocity is further enhanced by forming an air passage passing through the fur brush.

586103

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