Electrophotography – Image formation – Fixing
Reexamination Certificate
2005-03-08
2005-03-08
Ngo, Hoang (Department: 2852)
Electrophotography
Image formation
Fixing
C219S216000, C399S328000
Reexamination Certificate
active
06865363
ABSTRACT:
A fixing apparatus includes a fixing roller, a heat roller, a seamless fixing belt, a pressure roller, a supporting roller, and a pressure applying member. The heat roller includes a fixing heat source. The seamless fixing belt is extended between the fixing roller and the heat roller. The pressure roller pushes the fixing roller via the fixing belt to form a second fixing-process area. The supporting roller contacts inside the fixing belt and winds the fixing belt around a surface of the pressure roller to form a first fixing-process area upstream of and next to the second fixing-process area. The pressure applying member applies a pressure to the heat roller in a direction opposite to an ejection of the recording sheet from the second fixing-process area to adjust a fixing pressure of the first fixing-process area.
REFERENCES:
patent: 5250996 (1993-10-01), Sugizaki et al.
patent: 6243559 (2001-06-01), Kurotaka et al.
Hachisuka Toshiharu
Yamada Masamichi
Ngo Hoang
Ricoh & Company, Ltd.
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