Sughrue Mion, PLLC
Fixing device having plurality of fixation nip areas and image forming appartus having the same
A fixing device includes a rotatable body; a rotatable endless belt having inner and outer peripheral surfaces; a first presser portion within the inner peripheral surface and pressing the outer peripheral surface onto the rotatable body to form a first nip, through which a recording medium passes, between the endless belt and the rotatable body; and a second presser portion within the inner peripheral surface and pressing the outer peripheral surface onto the rotatable body to form a second nip through which the recording medium passes. The first nip decreases in length in a recording-medium transport direction from a central area toward opposite ends in an axial direction. The second nip increases in length in the transport direction from a central area toward opposite ends in the axial direction, and has an upstream edge, in the transport direction, whose central area protrudes upstream relative to the opposite ends.
Fuji Xerox Co., Ltd.
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Motoyuki Megumi Yukihiro Shigeru
Yagi Miyazaki Ichiki Watanabe