Copier cleaning system incorporating resilient noncellular seali

Details Copier cleaning system incorporating resilient noncellular seali Copier cleaning system incorporating resilient noncellular seali

1978-11-09

1984-03-27

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1525652, 101425, G03G 2100

Patent

active

044390351

ABSTRACT:
At the cleaning station of a photocopier, a cleaning system including a wetted cleaning roller of resilient closed-cell material and a sealing roller of resilient noncellular material past which cleaning and sealing rollers the imaging surface is sequentially moved. The cleaning roller contacts the imaging surface and is so driven that its surface adjacent to the imaging surface moves in a direction opposite thereto to provide a scrubbing action. The sealing roller contacts the imaging surface and is so driven that its surface adjacent to the imaging surface moves in the same direction as and at the same speed as the imaging surface to provide a dynamic seal. Preferably, the sealing roller has a surface smoothness of between 2 and 10 microinches. The sealing roller may be formed by casting polyurethane in a glass tube to form an extremely smooth outer surface which provides a highly effective seal with the imaging surface against the flow of cleaning liquid. In a preferred embodiment, the sealing roller engages the cleaning roller so as to be cleaned of any adhering toner particles by the action of the cleaning roller.

REFERENCES:
patent: 3405683 (1968-10-01), Jons et al.
patent: 3598487 (1971-08-01), Mizuguchi
patent: 3807853 (1974-04-01), Hudson
patent: 3871081 (1975-03-01), Inoue et al.
patent: 3884572 (1975-05-01), Bacon et al.
patent: 4026648 (1977-05-01), Takahashi
patent: 4032229 (1977-06-01), Tani et al.
patent: 4056315 (1977-11-01), Ariyama et al.
patent: 4080059 (1978-03-01), Tani et al.
patent: 4131359 (1978-12-01), Honda

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