Image forming apparatus

Details Image forming apparatus Image forming apparatus

2005-12-27

2005-12-27

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Transfer

C399S308000

Reexamination Certificate

active

06980761

ABSTRACT:
An image forming apparatus is provided with a photosensitive drum in which a toner image is formed on surface thereof; an intermediate transfer belt to which the toner image of the photosensitive drum is transferred via a primary transfer portion and the transferred toner image is transferred via a secondary transfer portion to a paper; and a wrap-out roller which abuts against a rear surface of this intermediate transfer belt so as to apply tension to the intermediate transfer belt. This wrap-out roller forms the primary transfer portion which causes the intermediate transfer belt to abut against the photosensitive drum in a wrap shape, and forms a flat plane portion toward the secondary transfer portion. This wrap-out roller is arranged within a projection area which is directed from a secondary transfer roller toward the photosensitive drum.

REFERENCES:
patent: 6445900 (2002-09-01), Fukao et al.
patent: 6625410 (2003-09-01), Sato et al.
patent: 6816178 (2004-11-01), Yamada et al.
patent: 9-90779 (1997-04-01), None
patent: 11-109767 (1999-04-01), None
patent: 2002-341706 (2002-11-01), None

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