Cleaning unit for cleaning recording medium of an electrophotographic apparatus
CA 1323654 C · Owner: Tonomoto, Yoshihiro · Inventors: Tonomoto, Yoshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A recording apparatus of toner image transfer type having an improved cleaning device for removing residual contaminants 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 …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.