Apparatus for forming an image on both sides of an image receive

Details Apparatus for forming an image on both sides of an image receive Apparatus for forming an image on both sides of an image receive

1998-02-19

1999-05-04

Grimley, Arthur T.

Electrophotography

Image formation

Transfer

G03G 1516

Patent

active

058996117

ABSTRACT:
An apparatus for forming a toner image on both sides of a sheet, includes a photoreceptor on which a first toner image and a second toner image are formed by toner image forming devices; a second image carrying belt onto which the second toner image is transferred from the photoreceptor; a first transferring device to transfer the first toner image from the photoreceptor to a first side of the sheet; a second transferring device to transfer the second toner image from the second image carrying belt to a second side of the sheet; a fixing device having a first fixing roller for fixing the first toner image onto the first side of the sheet and a second fixing roller for fixing the second toner image onto the second side of the sheet, the first fixing roller coming in contact with the second fixing roller so as to form a nip section therebetween; the second image carrying belt having a flat belt surface on which the sheet is conveyed from the photoreceptor toward a separating section at which the sheet is separated from the second image carrying belt, and the second image carrying belt arranged in relation to the fixing device in such a manner that an extended plane from the flat belt surface crosses the first fixing roller at a point between the nip section and a rotation axis of the first fixing roller.

REFERENCES:
patent: 4714939 (1987-12-01), Ahern et al.
patent: 5070371 (1991-12-01), Randall
patent: 5124756 (1992-06-01), Stelter
patent: 5617192 (1997-04-01), Tonomoto et al.
patent: 5678161 (1997-10-01), Kurotaka et al.
patent: 5722012 (1998-02-01), Saitoh

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