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。