公开(公告)号：EP2466392A2

公开(公告)日：2012-06-20

申请号：EP11193525.0

申请日：2011-12-14

申请人： Ricoh Company, Ltd.

发明人： Yoshikawa, Masaaki ,  Imada, Takahiro ,  Iwaya, Naoki ,  Arai, Yuji ,  Yoshiura, Arinobu ,  Takagi, Hiromasa ,  Fujimoto, Ippei ,  Tokuda, Tetsuo ,  Ikebuchi, Yutaka ,  Seshita, Takuya ,  Yoshinaga, Hiroshi ,  Gotoh, Hajime ,  Yamaguchi, Yoshiki ,  Shimokawa, Toshihiko ,  Ishii, Kenji

IPC分类号： G03G15/20

摘要： A fixing device, including a fixing member; a pressure member; a nip forming member; a reinforcing member; a heating member; and a flange member including a cylinder inserted in an inner circumference at an edge of the fixing member in an axial direction thereof and a flange fixed on a frame of the fixing device, wherein the cylinder of the flange member includes a notch storing the nip forming member at a part on the circumference, has an arc-shaped outer circumferential cross-section at an area corresponding to an area where the fixing member is heated by the heating member, having a predetermined radius equivalent to a radius of the fixing member, and the arc has a center located at an upstream side in a recording medium feeding direction relative to a center line of the nip forming member in the recording medium feeding direction.

摘要翻译： 一种定影装置，包括固定构件; 压力构件; 辊隙形成构件; 加强构件; 加热构件; 以及凸缘构件，其包括在所述固定构件的轴向方向的边缘处插入在所述固定构件的边缘的内圆周上的圆筒和固定在所述固定装置的框架上的凸缘，其中，所述凸缘构件的圆筒包括凹槽， 在与所述定影部件被所述加热部件加热的区域相对应的区域处具有与所述定影部件的半径相等的预定半径的弧形外周横截面，以及 该圆弧的中心位于记录介质进给方向上的相对于夹持形成部件的中心线的记录介质进给方向的上游侧。

公开(公告)号：EP2453318A2

公开(公告)日：2012-05-16

申请号：EP11188655.2

申请日：2011-11-10

申请人： Ricoh Company, Ltd.

发明人： Tokuda, Tetsuo ,  Fujimoto, Ippei ,  Yamaguchi, Yoshiki ,  Yoshiura, Arinobu ,  Imada, Takahiro ,  Gotoh, Hajime ,  Shimokawa, Toshihiko ,  Yoshikawa, Masaaki ,  Ishii, Kenji ,  Yoshinaga, Hiroshi ,  Arai, Yuji ,  Takagi, Hiromasa ,  Iwaya, Naoki ,  Ikebuchi, Yutaka ,  Seshita, Takuya

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The fuser belt is looped into a generally cylindrical configuration. The heater is disposed adjacent to the fuser belt to heat the fuser belt. The fuser pad is disposed inside the loop of the fuser belt, and has an outer peripheral surface thereof formed in a generally concave configuration. The pressure member is disposed opposite the fuser pad with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the outer peripheral surface of the fuser pad through the fuser belt to form a fixing nip therebetween. The fuser pad includes, along the outer peripheral surface thereof, a protruding portion and an inwardly curved portion adjoining the protruding portion to face an outer circumferential surface of the pressure member.

摘要翻译： 定影装置包括可旋转的柔性定影带，加热器，定影垫和压力构件。 定影带环绕成大致圆柱形的构造。 加热器邻近定影带设置以加热定影带。 定影垫设置在定影带的环的内部，并且其外周表面形成为大致凹形的构造。 压力构件与定影垫相对设置，定影带插入在定影垫和压力构件之间。 压力构件通过定影带将负载方向压靠在定影垫的外周面上，以在它们之间形成定影辊隙。 定影垫沿着其外周表面包括与突出部相邻的突出部分和向内弯曲的部分，以面对压力构件的外周表面。