公开(公告)号：US20120114345A1

公开(公告)日：2012-05-10

申请号：US13286796

申请日：2011-11-01

申请人： IPPEI FUJIMOTO ,  YUJI ARAI ,  HIROMASA TAKAGI ,  YOSHIKI YAMAGUCHI ,  NAOKI IWAYA ,  ARINOBU YOSHIURA ,  TOSHIHIKO SHIMOKAWA ,  TETSUO TOKUDA ,  YUTAKA IKEBUCHI ,  KENJI ISHII ,  TAKAHIRO IMADA ,  HIROSHI YOSHINAGA ,  TAKUYA SESHITA ,  HAJIME GOTOH ,  MASAAKI YOSHIKAWA

发明人： IPPEI FUJIMOTO ,  YUJI ARAI ,  HIROMASA TAKAGI ,  YOSHIKI YAMAGUCHI ,  NAOKI IWAYA ,  ARINOBU YOSHIURA ,  TOSHIHIKO SHIMOKAWA ,  TETSUO TOKUDA ,  YUTAKA IKEBUCHI ,  KENJI ISHII ,  TAKAHIRO IMADA ,  HIROSHI YOSHINAGA ,  TAKUYA SESHITA ,  HAJIME GOTOH ,  MASAAKI YOSHIKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G2215/2035

摘要： A fixing device includes a fixing belt; a pressing rotary body disposed outside a loop formed by the fixing belt; a nip formation pad disposed inside the loop formed by the fixing belt and pressed against the pressing rotary body via the fixing belt to form a fixing nip between the pressing rotary body and the fixing belt through which a recording medium bearing a toner image is conveyed. The nip formation pad includes a protrusion disposed downstream from the fixing nip in a conveyance direction of the recording medium and protruding toward the pressing rotary body without contacting the pressing rotary body. The fixing device further includes a pressing rotary body mover to contact and move the pressing rotary body bidirectionally in the conveyance direction of the recording medium to move the fixing nip toward and away from the protrusion.

摘要翻译： 定影装置包括定影带; 设置在由所述定影带形成的环的外侧的按压旋转体; 辊隙形成垫，其设置在由所述定影带形成的所述环内部，并且经由所述定影带压靠在所述加压旋转体上，以在所述按压旋转体和所述定影带之间形成定影辊隙，所述定影辊通过所述定影辊隙传送带有调色剂图像的记录介质。 压区形成垫包括在记录介质的传送方向上设置在定影夹持部的下游的突起，并且在不与压制旋转体接触的状态下朝向按压旋转体突出。 定影装置还包括按压旋转体移动器，以在记录介质的传送方向上双向接触和移动按压旋转体，以使定影夹持件朝向和远离突起移动。

公开(公告)号：US20130195477A1

公开(公告)日：2013-08-01

申请号：US13731432

申请日：2012-12-31

申请人： TAKUYA SESHITA ,  MASAHIKO SATOH ,  MASAAKI YOSHIKAWA ,  HIROSHI YOSHINAGA ,  KENJI ISHII ,  TADASHI OGAWA ,  TAKAHIRO IMADA ,  HIROMASA TAKAGI ,  KAZUYA SAITO ,  NAOKI IWAYA ,  TOSHIHIKO SHIMOKAWA ,  KENSUKE YAMAJI ,  TEPPEI KAWATA ,  TAKAMASA HASE ,  SHUUTAROH YUASA ,  TAKESHI UCHITANI ,  ARINOBU YOSHIURA ,  HAJIME GOTOH ,  AKIRA SUZUKI ,  RYOTA YAMASHINA ,  YASUNORI ISHIGAYA

发明人： TAKUYA SESHITA ,  MASAHIKO SATOH ,  MASAAKI YOSHIKAWA ,  HIROSHI YOSHINAGA ,  KENJI ISHII ,  TADASHI OGAWA ,  TAKAHIRO IMADA ,  HIROMASA TAKAGI ,  KAZUYA SAITO ,  NAOKI IWAYA ,  TOSHIHIKO SHIMOKAWA ,  KENSUKE YAMAJI ,  TEPPEI KAWATA ,  TAKAMASA HASE ,  SHUUTAROH YUASA ,  TAKESHI UCHITANI ,  ARINOBU YOSHIURA ,  HAJIME GOTOH ,  AKIRA SUZUKI ,  RYOTA YAMASHINA ,  YASUNORI ISHIGAYA

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2039 ,  G03G15/205 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device comprises a rotatable fixing member to apply heat to a recording medium bearing an unfixed image thereon, a heat source to heat the fixing member, and a rotatable pressing member pressing against the fixing member forming a nip therebetween. A driving source rotates and drives the fixing member and the pressing member. An overheat safety device has a relay to open and close a power supply path connected to the heat source. A temperature detector is connected to both the relay and the control unit to detect temperature of the fixing member. The overheat safety device turns off the relay and cuts off power supply to the heat source when the fixing member is overheated. The fixing member is allowed to radiate heat and cool down when the temperature detected by the temperature detector is more than a prescribed level.

摘要翻译： 定影装置包括：可旋转的固定构件，用于向其上承载有未固定图像的记录介质施加热量;加热固定构件的热源;以及压靠在所述固定构件之间形成辊隙的可旋转的按压构件。 驱动源旋转并驱动固定构件和按压构件。 过热安全装置具有用于打开和关闭连接到热源的电源路径的继电器。 温度检测器连接到继电器和控制单元两者以检测固定构件的温度。 过热安全装置关闭继电器，并在固定部件过热时切断热源的供电。 当温度检测器检测到的温度超过规定值时，允许固定部件散热并冷却。