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公开(公告)号：US20200249597A1
公开(公告)日：2020-08-06
申请号：US16773063
申请日：2020-01-27
发明人： Takuma Tadomi , Daigo Matsuura , Shigeaki Takada , Masayuki Tamaki , Yasuharu Chiyoda , Masahiro Tsujibayashi
摘要： An image forming apparatus includes a control portion configured to output, in a test mode, a recording member which has passed through a fixing nip portion in a case of a first temperature difference in which a center part temperature of a first rotary member is higher than an end part temperature of the first rotary member and a recording member which has passed through the fixing nip portion in a case of a second temperature difference in which the center part temperature is lower than the end part temperature by one operation of starting test mode to the input portion.
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公开(公告)号：US10691053B2
公开(公告)日：2020-06-23
申请号：US16505081
申请日：2019-07-08
摘要： A pair of rotary members nips and conveys a recording material and a heating element heats a toner image on the recording material via the pair of rotary members. A separating mechanism separates the pair of rotary members. A heating time recording portion records a cumulative length of a period during which the pair of rotary members in an abutted state is heated as a first heating time and a cumulative length of the period during which the pair of rotary members in a separated state is heated as a second heating time. A determining portion determines a remaining lifetime of the pair of rotary members using the first and second heating times and data indicating a relationship between length of the period during which the pair of rotary members is heated and decrease in lifetime of the pair of rotary members.
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公开(公告)号：US10437185B2
公开(公告)日：2019-10-08
申请号：US15988454
申请日：2018-05-24
发明人： Yusuke Yamaguchi , Masayuki Tamaki , Hiroki Kawai , Ikuo Nakamoto
摘要： An image heating apparatus includes a controller configured to control a temperature at which energization to a heater is turned off, depending on a detection temperature of a detecting portion, wherein, when a temperature rise rate per unit time of the detection temperature of the detecting portion is a first rise rate, the controller turns off the energization to the heater in response to the detection temperature reaching a first temperature, and, when the temperature rise rate per unit time is a second rise rate that is less than the first rise rate, the controller turns off the energization to the heater in response to the detection temperature reaching a second temperature that is greater than the first temperature.
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4.发明授权公开(公告)号：US09348283B2
公开(公告)日：2016-05-24
申请号：US14798613
申请日：2015-07-14
发明人： Shigeaki Takada , Toshinori Nakayama , Masayuki Tamaki , Naoki Akiyama , Akeshi Asaka , Koichi Kakubari , Yutaka Arai , Jun Miura
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a rotatable heating member and a rotatable pressing member which are configured to fix a toner image on a recording material in a nip therebetween; and a heating mechanism configured to selectively heat regions of the rotatable heating member depending on sizes of the recording material when the sizes are predetermined ones of all sizes usable in the fixing device. The rotatable pressing member includes a base layer and a porous elastic layer provided on the base layer and containing a needle-like filler. The elastic layer having a thermal conductivity, with respect to a longitudinal direction thereof, which is 6 times to 900 times a thermal conductivity with respect to a thickness direction thereof.
摘要翻译： 定影装置包括可旋转加热构件和可旋转的按压构件，其被配置为将调色剂图像固定在其间的间隙中的记录材料上; 以及加热机构，其构造成当尺寸是可用于定影装置中的所有尺寸中的预定尺寸时，根据记录材料的尺寸选择性地加热可旋转加热构件的区域。 可旋转按压构件包括基底层和设置在基底层上并包含针状填充物的多孔弹性层。 弹性层相对于其长度方向具有相对于其厚度方向的导热性的6〜900倍的热导率。
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公开(公告)号：US20160098002A1
公开(公告)日：2016-04-07
申请号：US14875498
申请日：2015-10-05
发明人： Ryo Yashiro , Hidekazu Maruta , Masayuki Tamaki , Ryo Suzuki , Mitsuru Hasegawa , Rikiya Takemasa , Koichi Kakubari , Shigeru Hirano
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/0129 , G03G2215/2035
摘要： An image heating apparatus includes a heating belt having a heat generating layer configured to generate heat by energization, a pressing roller configured to abut on an outer peripheral surface of the heating belt to form a nip portion, a pressing mechanism configured to press the heating belt against the pressing roller, an outer ring electrically connected to the heating belt in an end portion of the heating belt, a power feed member configured to abut on the outer ring to feed power to the outer ring, and an inner ring configured to clamp the end portion of the heating belt between the inner ring and the outer ring. A chamfered portion of the inner ring is chamfered.
摘要翻译： 图像加热装置包括：加热带，其具有通过通电而被配置为产生热的发热层;加压辊，其构造成抵接在加热带的外周面上以形成夹持部;压紧机构，其构造成将加热带 与所述加压辊相对的外环，在所述加热带的端部与所述加热带电连接的外环，被配置为抵靠所述外圈以向所述外环供电的供电部件，以及内环， 内圈和外圈之间的加热带的端部。 内圈的倒角部分被倒角。
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公开(公告)号：US20130336671A1
公开(公告)日：2013-12-19
申请号：US13913895
申请日：2013-06-10
发明人： Masayuki Tamaki , Jiro Ishizuka , Toshinori Nakayama , Taichi Takemura , Kazuhisa Kemmochi , Hikaru Osada , Keisuke Abe , Tsutomu Miki
IPC分类号： G03G15/20
CPC分类号： G03G15/22 , G03G15/2028 , G03G15/2053 , G03G15/2064 , G03G2215/2035 , G03G2215/2074
摘要： An image forming portion of an image forming apparatus is configured to form a toner image on a recording medium such that a relationship of M≦ρπL/(30√3) is satisfied, where a volume average particle size of toner is L(μm), density of the toners is ρ (g/cm3), and a maximum toner laid quantity per unit area of a single color toner image on a recording medium is M (mg/cm2). The toner image formed by the image forming portion is fixed on the recording medium by a fixing nip portion by being heated and applied a force in a direction of a plane of the recording medium.
摘要翻译： 图像形成装置的图像形成部分被配置为在记录介质上形成调色剂图像，使得满足M @ rhopiL /（30√3）的关系，其中调色剂的体积平均粒径为L（母） ，调色剂的密度为rho（g / cm 3），记录介质上的单色调色剂图像的单位面积的最大调色剂铺放量为M（mg / cm 2）。 由图像形成部分形成的调色剂图像通过加热定影夹持部分固定在记录介质上，并在记录介质的平面方向施加力。
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公开(公告)号：US10725403B2
公开(公告)日：2020-07-28
申请号：US16560484
申请日：2019-09-04
发明人： Masayuki Tamaki , Hiroto Ito , Oki Kitagawa
摘要： An image forming apparatus includes an image forming portion, an image heating apparatus including an image heating unit, a rotatable pressing roller, and an information storing portion; a reading portion; a counter portion; a display portion; and a controller. The controller controls the counter portion so that a) when the image heating apparatus mounted is exchanged with an image heating apparatus including a new image heating unit, on the basis of information of the information storing portion, the count value of the image heating apparatus, the count value of the image heating unit and the count value of the rotatable pressing member are reset, and b) when only the image heating unit mounted is exchanged with a new one, the count value of the image heating unit is reset and the count value of the rotatable pressing member is not reset.
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公开(公告)号：US10303093B2
公开(公告)日：2019-05-28
申请号：US15251427
申请日：2016-08-30
摘要： An image forming apparatus has an image forming portion, and a fixing portion including a first rotatable member and a second rotatable member that form a nip, and a detecting portion configured to detect a temperature of the first rotatable member. An acquiring portion acquires a rotation time of the first rotatable member, and a notifying portion provides a notification prompting exchange of the first rotatable member on the basis of an accumulated value of the rotation time of the first rotatable member acquired by the acquiring portion, the rotation time being subjected to weighting on the basis of the temperature of the first rotatable member detected by the detecting portion.
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公开(公告)号：US20180046117A1
公开(公告)日：2018-02-15
申请号：US15670179
申请日：2017-08-07
发明人： Hiroki Muramatsu , Toshinori Nakayama , Kota Arimoto , Masayuki Tamaki , Yusuke Yamaguchi , Ryo Yashiro , Matsutaka Maeda , Yuji Kitano , Yoshihito Oshima
CPC分类号： G03G15/2003 , G03G15/1615 , G03G15/162 , G03G15/2057 , G03G2215/2035
摘要： Provided is an endless belt-shaped electrophotographic member having a superior durability. The member comprises an endless belt-shaped substrate and a surface layer, the surface layer comprising an ionizing radiation crosslinked product of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), the surface layer is formed by irradiation of electron beam to a resin layer, the resin layer comprising the PFA, the surface layer has a universal hardness HU at 200° C. of 18 N/mm2≦HU≦40 N/mm2, and when a degree of orientation of the PFA in the resin layer in a direction orthogonal to the circumferential direction of the substrate is defined as Ri, and a degree of orientation of the crosslinked PFA in the surface layer in the direction orthogonal to the circumferential direction of the substrate is defined as Rf, Ri and Rf satisfy a relationship represented by expression (1): Ri×0.8≦Rf≦Ri (1).
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10.发明授权Heater, image heating apparatus including the heater and manufacturing method of the heater 有权加热器，包括加热器的图像加热装置和加热器的制造方法公开(公告)号：US09513592B2
公开(公告)日：2016-12-06
申请号：US14844249
申请日：2015-09-03
发明人： Naoki Akiyama , Toshinori Nakayama , Masayuki Tamaki , Shigeaki Takada , Akeshi Asaka , Koichi Kakubari
CPC分类号： G03G15/80 , G03G15/2042 , G03G15/2053 , G03G2215/2035 , H01C17/06 , H01C17/28 , H05B1/0241 , H05B3/24
摘要： A heater includes a substrate, a first electrical contact, a plurality of second electrical contacts, a plurality of electrode portions including first electrode portions electrically connected with the first electrical contact and second electrode portions electrically connected with the second electrical contacts, the first electrode portions and the second electrode portions being arranged alternately with predetermined gaps in a longitudinal direction of the substrate, and a plurality of heat generating portions provided between adjacent ones of the electrode portions so as to electrically connect between adjacent electrode portion. The heat generating portions are capable of generating heat by the electric power supply between adjacent electrode portions. A part of the second electrical contacts is selectably electrically connectable with the second terminal. The electrode portions are covered with the heat generating portions so as to be positioned between the substrate and the heat generating portions.
摘要翻译： 加热器包括基板，第一电触点，多个第二电触头，多个电极部分，包括与第一电触点电连接的第一电极部分和与第二电触头电连接的第二电极部分，第一电极部分 并且所述第二电极部分在所述基板的纵向方向上交替地布置有预定的间隙，以及多个发热部分，设置在相邻的所述电极部分之间，以便在相邻的电极部分之间电连接。 发热部能够通过相邻的电极部之间的电力供给而发热。 第二电触点的一部分可选择地与第二端子电连接。 电极部分被发热部分覆盖，以便位于基板和发热部分之间。
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