Cleaning device for use in electrophotographic copying machines

Details Cleaning device for use in electrophotographic copying machines Cleaning device for use in electrophotographic copying machines

1979-04-09

1981-01-27

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525651, G03G 2100

Patent

active

042471966

ABSTRACT:
The invention is directed to a device for cleaning the surface of a rotatably mounted photosensitive member in an electrophotographic copying machine and includes an elastic blade carried in a holder so as to be positioned in pressing engagement with the surface of the photosensitive member for removing residual developer from the photosensitive member surface. The blade is held at an angle between a surface of the photosensitive member and a side of the blade which faces opposite to the direction of rotation of the member which is either a right angle or an acute angle which is close to a right angle. Biasing means act either on the holder or on the blade in order to urge the blade toward the surface of the photosensitive member so that its forward end is in pressing contact therewith. The holder of the blade has a front wall for supporting the top surface of the blade which faces toward the direction of rotation of the photosensitive member. The top wall extends to a position close to the forward end of the blade. Elastic strain resulting from frictional forces and normal reaction forces developed between the surface of the photosensitive member and the forward end of the blade are thereby absorbed in the blade.

REFERENCES:
patent: 3552850 (1971-01-01), Royka et al.
patent: 3848993 (1974-11-01), Hasiotis
patent: 3859691 (1980-06-01), Katayama et al.
patent: 4152067 (1979-05-01), Kubota

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