Multicolor image forming apparatus and transfer roller

Details Multicolor image forming apparatus and transfer roller Multicolor image forming apparatus and transfer roller

1990-05-07

1991-05-14

Moses, R. L.

Photocopying

Contact printing

Light boxes

355272, 355326, G03G 1500

Patent

active

050160567

ABSTRACT:
Multicolor electrophotographic apparatus secures the ends of a receiving sheet in a trough which runs parallel to the axis of rotation of a transfer roller. An inclined surface in the trough gradually declines the transfer sheet away from the periphery of the transfer roller to prevent a photoconductive drum from receiving a jar as it rides off the edge of the transfer sheet. Preferably, the means defining the declining ramp surface also defines vacuum holes for securing the ends of the receiving sheet.

REFERENCES:
patent: 3612677 (1971-10-01), Langdon et al.
patent: 3633543 (1972-01-01), Pitasi et al.
patent: 3702482 (1972-11-01), Dolcimascolo et al.
patent: 4127265 (1978-11-01), Wirz et al.
patent: 4416531 (1983-11-01), Mayer
patent: 4712906 (1987-12-01), Bothmer et al.
patent: 4766463 (1988-08-01), Watanuki et al.
patent: 4875069 (1989-10-01), Takada et al.
patent: 4914737 (1990-04-01), Amemiya et al.
patent: 4937635 (1990-06-01), Paxon et al.
patent: 4949129 (1990-08-01), Folkes et al.

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