Duplex printer

Details Duplex printer Duplex printer

2006-11-14

2006-11-14

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S401000

Reexamination Certificate

active

07136614

ABSTRACT:
Provided is a duplex printer and method of duplex printing. The duplex printer and method of printing includes a paper feeding belt that is vertically installed to form a first vertical surface; a photosensitive drum that is installed to contact the first vertical surface; and a transfer roller that is installed to contact an other surface of the first vertical surface contacting the photosensitive drum to transfer a toner image from the photosensitive drum onto a sheet of paper, which is supplied between the photosensitive drum and the paper feeding belt. A back surface feeding path of the paper is formed at an opposite side of the photosensitive drum in the paper feeding belt, and the paper is conveyed closely adhered to a surface of the paper feeding belt in the back surface feeding path of the paper.

REFERENCES:
patent: 4456237 (1984-06-01), Buddendeck
patent: 2003/0108359 (2003-06-01), Chung
patent: 2004/0037601 (2004-02-01), Uchida et al.
patent: 61151637 (1986-07-01), None
patent: 008156 (1989-01-01), None
patent: 013879 (1993-07-01), None
patent: 00147573 (1998-05-01), None

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