Photocopying – Contact printing – Light boxes
Patent
1990-05-24
1991-11-19
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355298, G03G 2100
Patent
active
050669834
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. The rotatable cleaning cylinder continuously removes larger particles of contaminants which are accumulated at the cleaning edge of the blade while the smaller particles of contaminants serve to lubricate the area between the cleaning blade and the surface of the recording drum.
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Braun Fred L.
Fujitsu Limited
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