Methods and apparatus for cleaning photoconductive members

Details Methods and apparatus for cleaning photoconductive members Methods and apparatus for cleaning photoconductive members

1981-10-29

1983-07-26

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525652, 134 1, G03G 2100

Patent

active

043951139

ABSTRACT:
Methods and apparatus for cleaning a photoconductive surface in order to remove toner particles dispersed in a liquid developer wherein a smooth-surfaced, resiliently deformable, yieldable roller means is compliantly engaged with the surface to be cleaned so as to form a generally concave, smooth surfaced cleaning pad spaced from the photoconductive surface by a gap not exceeding the diameter of minimum sized toner particles.
The yieldable roller means is rotated such that the surface of the concave, smooth faced pad portion thereof moves in an opposite direction relative to the direction of movement of the photoconductive surface and at a velocity at least equal to that of the photoconductive surface.
A uniquely interacting cleaning roller, sponge scrubber and doctor blade combination is also contemplated.
This method and apparatus are particularly effectively employed with liquid developer materials including a gel-like dispersant, with the cleaning roller means applying shearing forces to the developer so as to reduce the viscosity thereof and facilitate the overall cleaning action.

REFERENCES:
patent: 3807853 (1974-04-01), Hudson
patent: 4080059 (1978-03-01), Tani et al.

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