Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1977-05-02
1979-02-20
Braun, Fred L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
1525651, 118652, G03G 2100, B21B 4502
Patent
active
041403886
ABSTRACT:
A scraper blade removes residual toner substance from a photoconductive drum subsequent to a copying operation. A resilient guide member which lightly engages with the drum below the scraper blade guides the removed toner substance onto a roller which carries the same to a container. The guide member engages the drum so lightly as not to remove toner substance therefrom. The portion of the guide member engaging with the drum may be resiliently constructed in such a manner as to be moved to a position to catch toner substance falling from between the edge of the scraper blade and the drum when the drum is removed for replacement. The guide member is preferably pivotally mounted so that it is urged into engagement with the photoconductive member by gravity. The guide member is further pivoted by gravity upon removal of the photoconductive member so that a portion of the member is always oriented below the scraper blade to receive falling toner from the blade.
REFERENCES:
patent: 3580673 (1971-05-01), Yang
patent: 3859691 (1975-01-01), Katayama et al.
patent: 3917398 (1975-11-01), Takahashi et al.
patent: 3950092 (1976-04-01), Zoltner
Alexander David G.
Braun Fred L.
Ricoh & Company, Ltd.
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