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公开(公告)号:US20140016971A1
公开(公告)日:2014-01-16
申请号:US13929920
申请日:2013-06-28
申请人: Yuji ARAI , Masaaki YOSHIKAWA , Kenji ISHII , Tadashi OGAWA , Teppei KAWATA , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Kensuke YAMAJI , Yoshiki YAMAGUCHI , Hiromasa TAKAGI , Naoki IWAYA , Takahiro IMADA , Hajime GOTOH , Akira SUZUKI
发明人: Yuji ARAI , Masaaki YOSHIKAWA , Kenji ISHII , Tadashi OGAWA , Teppei KAWATA , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Kensuke YAMAJI , Yoshiki YAMAGUCHI , Hiromasa TAKAGI , Naoki IWAYA , Takahiro IMADA , Hajime GOTOH , Akira SUZUKI
IPC分类号: G03G15/20
CPC分类号: G03G15/2053 , G03G15/206 , G03G15/2064 , G03G2215/2016 , G03G2215/2032 , G03G2215/2035
摘要: A fixing device includes a fixing rotary body rotatable in a given direction of rotation and a pressing rotary body pressed against the fixing rotary body to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed inside the fixing rotary body to heat the fixing rotary body. A reflector, disposed opposite an inner circumferential surface of the fixing rotary body via the heater, reflects light emitted from the heater onto the fixing rotary body. The reflector includes a movable portion movable relative to the heater to direct the light emitted from the heater onto a variable heating span of the fixing rotary body spanning in an axial direction thereof. The variable heating span varies depending on a width of the recording medium in the axial direction of the fixing rotary body.
摘要翻译: 定影装置包括可沿给定旋转方向旋转的定影旋转体和压靠在定影旋转体上的按压旋转体,以在其间传送承载调色剂图像的记录介质的定影夹持物。 定影旋转体内设有加热器,以加热定影旋转体。 经由加热器与定影旋转体的内周面相对设置的反射器将从加热器发射的光反射到定影旋转体上。 反射器包括可相对于加热器移动的可移动部分,以将从加热器发射的光引导到固定旋转体的沿其轴向方向的可变加热跨度。 可变加热跨度根据记录介质在固定旋转体的轴向上的宽度而变化。
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公开(公告)号:US20130236225A1
公开(公告)日:2013-09-12
申请号:US13771467
申请日:2013-02-20
申请人: Tadashi OGAWA , Masaaki YOSHIKAWA , Kenji ISHII , Teppei KAWATA , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Kensuke YAMAJI , Yuji ARAI , Yoshiki YAMAGUCHI , Hiromasa TAKAGI , Naoki IWAYA , Takahiro IMADA , Hajime GOTOH , Akira SUZUKI
发明人: Tadashi OGAWA , Masaaki YOSHIKAWA , Kenji ISHII , Teppei KAWATA , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Kensuke YAMAJI , Yuji ARAI , Yoshiki YAMAGUCHI , Hiromasa TAKAGI , Naoki IWAYA , Takahiro IMADA , Hajime GOTOH , Akira SUZUKI
IPC分类号: G03G15/20
CPC分类号: G03G15/2064 , G03G15/2053 , G03G2215/2035
摘要: A fixing device includes an endless belt and a pressing body pressed against the endless belt to form a fixing nip therebetween through which a recording medium is conveyed. A separator contacts and separates the recording medium discharged from the fixing nip from the endless belt. The separator includes a center plate disposed opposite a center of the endless belt in an axial direction thereof to contact the recording medium and a lateral end plate disposed opposite each lateral end of the endless belt in the axial direction thereof and including a contact portion projecting beyond the center plate toward the endless belt and contacting the endless belt to produce a given interval between the center plate and the endless belt.
摘要翻译: 固定装置包括环形带和压靠在环形带上的压制构件,以在其间传送记录介质。 分离器将从定影辊隙排出的记录介质与环形带接触并分离。 分离器包括中心板,该中心板沿环形带的轴向方向相对于其轴向方向设置以接触记录介质;以及横向端板,其设置在环形带的轴向方向上与环形带的每个侧端相对,并且包括突出超过的接触部分 中心板朝向环形带并且接触环形带以在中心板和环形带之间产生给定的间隔。
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公开(公告)号:US20130209139A1
公开(公告)日:2013-08-15
申请号:US13752679
申请日:2013-01-29
申请人: Tadashi OGAWA , Kenji ISHII , Teppei KAWATA , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Kensuke YAMAJI , Yuji ARAI , Yoshiki YAMAGUCHI , Hiromasa TAKAGI , Naoki IWAYA , Takahiro IMADA , Hajime GOTOH , Akira SUZUKI , Masaaki YOSHIKAWA
发明人: Tadashi OGAWA , Kenji ISHII , Teppei KAWATA , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Kensuke YAMAJI , Yuji ARAI , Yoshiki YAMAGUCHI , Hiromasa TAKAGI , Naoki IWAYA , Takahiro IMADA , Hajime GOTOH , Akira SUZUKI , Masaaki YOSHIKAWA
IPC分类号: G03G15/20
CPC分类号: G03G21/1685 , G03G15/2053 , G03G2215/2035
摘要: A fixing device capable of incorporating in an image forming apparatus includes a belt unit including a rotatable elastic endless belt having a sleeve shape without a driving shaft and a nip forming member disposed contactable against an inner surface of the endless belt, and a pressing member to form a nip contact portion through which a recording medium passes by pressing against the nip forming member via the endless belt. The endless belt is configured to be removable from the fixing device without contacting the endless belt.
摘要翻译: 能够结合在图像形成装置中的固定装置包括带单元,其包括具有套筒形状的旋转弹性环形带,而不具有驱动轴和可与环形带的内表面接触的夹持形成构件,以及按压构件 形成压区接触部分,记录介质通过环状带压靠在辊隙形成部件上而通过。 环形带被构造成可以从固定装置移除而不接触环形带。
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公开(公告)号:US20120121305A1
公开(公告)日:2012-05-17
申请号:US13293794
申请日:2011-11-10
申请人: Masaaki YOSHIKAWA , Yuji ARAI , Hiromasa TAKAGI , Yoshiki YAMAGUCHI , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Tetsuo TOKUDA , Yutaka IKEBUCHI , Kenji ISHII , Naoki IWAYA , Takahiro IMADA , Hiroshi YOSHINAGA , Takuya SESHITA , Hajime GOTOH , Ippei FUJIMOTO
发明人: Masaaki YOSHIKAWA , Yuji ARAI , Hiromasa TAKAGI , Yoshiki YAMAGUCHI , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Tetsuo TOKUDA , Yutaka IKEBUCHI , Kenji ISHII , Naoki IWAYA , Takahiro IMADA , Hiroshi YOSHINAGA , Takuya SESHITA , Hajime GOTOH , Ippei FUJIMOTO
IPC分类号: G03G15/20
CPC分类号: G03G15/2053 , G03G2215/2035
摘要: A fixing device includes a tubular belt holder, a rotatable, flexible fuser belt, a heater, a fuser pad, and a pressure member. The belt holder extends in an axial direction. The fuser belt is looped around the belt holder to rotate in a circumferential direction of the belt holder. The heater is disposed adjacent to the belt holder to heat the belt holder. The fuser pad is accommodated in the belt holder inside the loop of the fuser belt. The pressure member is disposed opposite the belt holder with the fuser belt interposed between the fuser pad and the pressure member. The pressure member presses in a load direction against the fuser pad through the fuser belt to form a fixing nip therebetween. The belt holder includes, along a circumferential dimension thereof, an upstream, first circumferential portion, a downstream, second circumferential portion, and a midstream, third circumferential portion.
摘要翻译: 定影装置包括管状带保持器,可旋转的柔性定影带,加热器,定影垫和压力构件。 皮带保持架沿轴向方向延伸。 定影带围绕带保持器环绕在带保持器的圆周方向上旋转。 加热器邻近带保持器设置以加热带保持器。 定影垫容纳在定影带环内的皮带保持架内。 压力构件与带保持器相对设置,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在负载方向上压靠定影垫,以在它们之间形成定影辊隙。 带保持器沿其周向尺寸包括上游,第一周向部分,下游,第二圆周部分和中游第三圆周部分。
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公开(公告)号:US20160004197A1
公开(公告)日:2016-01-07
申请号:US14851583
申请日:2015-09-11
申请人: Takahiro IMADA , Masaaki YOSHIKAWA , Kenji ISHII , Hiroshi YOSHINAGA , Yuji ARAI , Naoki IWAYA , Tetsuo TOKUDA , Hiromasa TAKAGI , Yoshiki YAMAGUCHI , Ippei FUJIMOTO , Takuya SESHITA , Yutaka IKEBUCHI , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Hajime GOTOH
发明人: Takahiro IMADA , Masaaki YOSHIKAWA , Kenji ISHII , Hiroshi YOSHINAGA , Yuji ARAI , Naoki IWAYA , Tetsuo TOKUDA , Hiromasa TAKAGI , Yoshiki YAMAGUCHI , Ippei FUJIMOTO , Takuya SESHITA , Yutaka IKEBUCHI , Arinobu YOSHIURA , Toshihiko SHIMOKAWA , Hajime GOTOH
IPC分类号: G03G15/20
CPC分类号: G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要: According to an embodiments, a fixing device includes: an endless fixing member; a heating unit that is provided inside an inner peripheral surface of the fixing member; and a nip forming unit that comes into press-contact with a rotationally driven pressing member with the fixing member interposed therebetween to form a nip. The nip forming unit has a shape in which a center of a contact surface protrudes toward the pressing member compared to both ends. The nip forming unit has a protruding amount at a center toward the pressing member compared to both ends of the nip forming unit in no-load state is set to be less than a bent amount of the nip forming unit when the nip forming unit comes into press-contact with the pressing member with the fixing member interposed therebetween.
摘要翻译: 根据实施例,固定装置包括:环形固定构件; 加热单元,设置在所述固定构件的内周面的内侧; 以及辊隙形成单元,其与固定构件夹在其间的与旋转驱动的按压构件压力接触以形成辊隙。 辊隙形成单元具有与两端相比接触表面的中心朝向按压构件突出的形状。 压区形成单元在空载状态下与夹紧形成单元的两端相比,在朝向加压构件的中心处具有突出量设定为小于压区形成单元的弯曲量时 与固定构件夹在其间的按压构件压接。
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公开(公告)号:US20120155935A1
公开(公告)日:2012-06-21
申请号:US13315581
申请日:2011-12-09
申请人: Masaaki YOSHIKAWA , Tetsuo TOKUDA , Yutaka IKEBUCHI , Takuya SESHITA , Hiroshi YOSHINAGA , Hajime GOTOH , Yoshiki YAMAGUCHI , Toshihiko SHIMOKAWA , Kenji ISHII , Takahiro IMADA , Naoki IWAYA , Yuji ARAI , Arinobu YOSHIURA , Hiromasa TAKAGI , Ippei FUJIMOTO
发明人: Masaaki YOSHIKAWA , Tetsuo TOKUDA , Yutaka IKEBUCHI , Takuya SESHITA , Hiroshi YOSHINAGA , Hajime GOTOH , Yoshiki YAMAGUCHI , Toshihiko SHIMOKAWA , Kenji ISHII , Takahiro IMADA , Naoki IWAYA , Yuji ARAI , Arinobu YOSHIURA , Hiromasa TAKAGI , Ippei FUJIMOTO
IPC分类号: G03G15/20
CPC分类号: G03G15/2053 , G03G2215/2035
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: 一种固定装置,包括固定构件; 压力构件; 辊隙形成构件; 加强件; 加热构件; 以及凸缘构件,其包括在固定构件的轴向方向上的内周中插入的气缸和固定在所述定影装置的框架上的凸缘,所述凸缘构件的气缸包括存储所述辊隙成形 在圆周上的一部分上的部件在对应于固定部件被加热部件加热的区域的区域上具有弧形的外周横截面,其具有等于固定部件的半径的预定半径,以及 电弧具有位于记录介质供给方向上相对于夹持形成部件的中心线的记录介质输送方向上游侧的中心。
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公开(公告)号:US20140270875A1
公开(公告)日:2014-09-18
申请号:US14193273
申请日:2014-02-28
申请人: Ryuuichi MIMBU , Takayuki SEKI , Hiroshi YOSHINAGA , Yuji ARAI , Yutaka IKEBUCHI , Yoshiki YAMAGUCHI , Kazuya SAITO , Shuutaroh YUASA , Shuntaro TAMAKI , Toshihiko SHIMOKAWA , Naoki IWAYA
发明人: Ryuuichi MIMBU , Takayuki SEKI , Hiroshi YOSHINAGA , Yuji ARAI , Yutaka IKEBUCHI , Yoshiki YAMAGUCHI , Kazuya SAITO , Shuutaroh YUASA , Shuntaro TAMAKI , Toshihiko SHIMOKAWA , Naoki IWAYA
CPC分类号: B66F19/00 , G03G15/2032 , G03G15/2035 , G03G2215/2035
摘要: A pressure adjuster for changing pressure between a plurality of opposed bodies pressed against each other includes a cam rotatable in a given direction of rotation and having a top dead center on an outer circumferential surface thereof that is distanced farthest from a rotation axis of the cam. A driver is connected to the cam to drive and rotate the cam. A cam rest contacts the cam and is connected to one of the plurality of opposed bodies. A cam regulation assembly is connected to the cam to regulate rotation of the cam at least when the top dead center of the cam passes a contact position where the cam contacts the cam rest.
摘要翻译: 用于改变彼此按压的多个相对体之间的压力的压力调节器包括可在给定旋转方向上旋转的凸轮,并且在其外圆周表面上具有距离凸轮的旋转轴线最远的上止点。 驱动器连接到凸轮以驱动并旋转凸轮。 凸轮支架接触凸轮并且连接到多个相对体中的一个。 凸轮调节组件连接到凸轮以至少当凸轮的上止点通过凸轮接触凸轮支架的接触位置时调节凸轮的旋转。
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公开(公告)号:US20140270831A1
公开(公告)日:2014-09-18
申请号:US14143253
申请日:2013-12-30
申请人: Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Yutaka IKEBUCHI , Ryuuichi MIMBU , Yoshiki YAMAGUCHI , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA
发明人: Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Yutaka IKEBUCHI , Ryuuichi MIMBU , Yoshiki YAMAGUCHI , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA
IPC分类号: G03G15/20
CPC分类号: G03G15/2039 , G03G15/2042 , G03G15/2053 , G03G15/55 , G03G2215/2035
摘要: An image forming apparatus includes a fixing device including a fixing rotary body and a heater for heating the fixing rotary body. An opposed body contacts the fixing rotary body with releasable pressure therebetween to form a fixing nip therebetween through which a recording medium is conveyed. A heat shield is interposed between the heater and the fixing rotary body and movable in a circumferential direction of the fixing rotary body to shield the fixing rotary body from the heater in a variable circumferential direct heating span of the fixing rotary body where the heater is disposed opposite the fixing rotary body directly. A controller halts the heat shield instantly when a fault occurs during a print job.
摘要翻译: 图像形成装置包括固定装置,该固定装置包括固定旋转体和用于加热定影旋转体的加热器。 相对的身体与固定旋转体接触,其间具有可释放的压力,以在其间输送定影夹持物,通过该定影夹持物传送记录介质。 加热器和固定旋转体之间设置有隔热罩,并且能够在固定旋转体的圆周方向上移动,以便在加热器设置的定影旋转体的可变圆周直接加热跨度内将定影旋转体屏蔽在加热器上 直接与定影旋转体相对。 当打印作业发生故障时,控制器立即停止热屏蔽。
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公开(公告)号:US20160327891A1
公开(公告)日:2016-11-10
申请号:US15216863
申请日:2016-07-22
申请人: Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA , Masaaki YOSHIKAWA , Toshiharu HACHISUKA
发明人: Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA , Masaaki YOSHIKAWA , Toshiharu HACHISUKA
CPC分类号: G03G15/2039 , G03G15/2042 , G03G15/205 , G03G15/80 , G03G2215/2035
摘要: An image forming apparatus includes a first heater disposed opposite and heating at least a center of a fixing belt in an axial direction thereof and a second heater disposed opposite and heating at least a lateral end of the fixing belt in the axial direction thereof. A power supply supplies power to the first heater and the second heater. A controller that controls the power supply includes a calculator to calculate an elapsed time elapsed after at least one of the first heater and the second heater starts heating the fixing belt. The controller controls the power supply to supply power to the first heater and the second heater such that a power density of the second heater is greater than a power density of the first heater when the elapsed time calculated by the calculator is smaller than a predetermined time.
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公开(公告)号:US20150185671A1
公开(公告)日:2015-07-02
申请号:US14564291
申请日:2014-12-09
申请人: Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA , Masaaki YOSHIKAWA , Toshiharu HACHISUKA
发明人: Yutaka IKEBUCHI , Hiroshi YOSHINAGA , Takayuki SEKI , Yuji ARAI , Ryuuichi MIMBU , Shuntaro TAMAKI , Kazuya SAITO , Shuutaroh YUASA , Toshihiko SHIMOKAWA , Masaaki YOSHIKAWA , Toshiharu HACHISUKA
IPC分类号: G03G15/20
CPC分类号: G03G15/2039 , G03G15/2042 , G03G15/205 , G03G15/80 , G03G2215/2035
摘要: An image forming apparatus includes a first heater disposed opposite and heating at least a center of a fixing belt in an axial direction thereof and a second heater disposed opposite and heating at least a lateral end of the fixing belt in the axial direction thereof. A power supply supplies power to the first heater and the second heater. A controller that controls the power supply includes a calculator to calculate an elapsed time elapsed after at least one of the first heater and the second heater starts heating the fixing belt. The controller controls the power supply to supply power to the first heater and the second heater such that a power density of the second heater is greater than a power density of the first heater when the elapsed time calculated by the calculator is smaller than a predetermined time.
摘要翻译: 图像形成装置包括:第一加热器,其相对设置并至少加热定影带的沿其轴向的中心;以及第二加热器,其相对设置并加热定影带的轴向的至少一个侧端。 电源为第一加热器和第二加热器供电。 控制电源的控制器包括计算器,用于计算在第一加热器和第二加热器中的至少一个开始加热定影带之后经过的经过时间。 控制器控制电源以向第一加热器和第二加热器供电,使得当由计算器计算的经过时间小于预定时间时,第二加热器的功率密度大于第一加热器的功率密度 。
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