Foreign object detector/brush cleaner

Details Foreign object detector/brush cleaner Foreign object detector/brush cleaner

1974-06-27

1977-06-28

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

271258, 355 3R, 355 14, G03G 2100

Patent

active

040322289

ABSTRACT:
A reproduction machine having a cleaning brush mechanism for cleaning the photoreceptor surface of the machine has a detector mounted within the mechanism for sensing the presence of any transfer sheet which might accidently enter the mechanism. The cleaning brush mechanism includes a brush rotatably mounted within a housing, the preferred embodiment of the invention having a crystal pickup with a probe mounted adjacent to the periphery of the brush and adjacent to the entrance to the housing in the direction of rotation of the brush. A transfer sheet entering the housing will "accordian" or crumple, thus contacting the probe to generate a signal.

REFERENCES:
patent: 3650617 (1972-03-01), Baxter et al.
patent: 3791729 (1974-02-01), Steiner
patent: 3831933 (1974-08-01), Fantozzi

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