Electrophotography – Image formation – Transfer
Reexamination Certificate
2005-03-01
2005-03-01
Chen, Sophia S. (Department: 2852)
Electrophotography
Image formation
Transfer
C399S308000, C399S313000, C399S317000
Reexamination Certificate
active
06862421
ABSTRACT:
An apparatus to transfer a color laser image including an intermediate transfer belt around a plurality of guide rollers provided in a printer body frame; a transfer roller to contact the intermediate transfer belt with a transfer nip, and to transfer the color image of the intermediate transfer belt to a printing paper; a transfer panel, positioned to open and close with respect to the printer body frame, to support the transfer roller; a separating unit to separate the transfer roller from the intermediate transfer belt at constant intervals or pressurize the transfer roller to contact the intermediate transfer belt; and an aligning unit to align the transfer roller with respect to the intermediate transfer belt in the printer body frame. The positions of the central axis of the intermediate transfer belt and the axis of the transfer roller are controlled at the same level on the printer body frame.
REFERENCES:
patent: 4431301 (1984-02-01), Hashimoto et al.
patent: 5983062 (1999-11-01), Sameshima
patent: 6408158 (2002-06-01), Takahata et al.
patent: 20020102110 (2002-08-01), Kida
patent: 2001-356619 (2001-12-01), None
patent: 2002-214943 (2002-07-01), None
Chen Sophia S.
Samsung Electronics Co,. Ltd.
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