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1. 发明申请

US20130142551A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20130142551A1
公开(公告)日：2013-06-06
申请号：US13671082
申请日：2012-11-07
申请人： Motoyoshi YAMANO , Jun Okamoto , Tetsuo Tokuda , Takashi Sakamaki , Satoshi Ueno , Naoto Suzuki , Fumihiro Hirose
发明人： Motoyoshi YAMANO , Jun Okamoto , Tetsuo Tokuda , Takashi Sakamaki , Satoshi Ueno , Naoto Suzuki , Fumihiro Hirose
IPC分类号： G03G15/20
CPC分类号： G03G15/2053
摘要： A fixing device fixes a toner image on a recording medium by heating the recording medium, with a heating area and a non-heating area selected in accordance with a magnetic flux and a repulsive magnetic flux. The fixing device includes a heat generating layer, an exciting coil, and a demagnetizing member. The heat generating layer generates heat. The exciting coil generates the magnetic flux, and thereby inductively heats the heat generating layer. The demagnetizing member faces the heat generating layer in the non-heating area. The demagnetizing member generates the repulsive magnetic flux against the magnetic flux generated by the exciting coil, and thereby demagnetizes the magnetic flux and suppresses the heating. Further, the demagnetizing member has a demagnetization effect different between at least a portion of the non-heating area adjacent to the heating area and the remaining portion of the non-heating area.
摘要翻译：定影装置通过加热记录介质，根据磁通量和排斥磁通量选择加热区域和非加热区域，将调色剂图像定影在记录介质上。固定装置包括发热层，励磁线圈和退磁构件。发热层产生热量。励磁线圈产生磁通量，从而感应加热发热层。退磁构件面向非加热区域中的发热层。退磁构件产生抵抗由励磁线圈产生的磁通的斥力磁通，从而使磁通消磁，并抑制加热。此外，退磁构件在与加热区域相邻的非加热区域的至少一部分与非加热区域的剩余部分之间具有不同的退磁效果。

2. 发明申请

US20150227097A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20150227097A1
公开(公告)日：2015-08-13
申请号：US14204268
申请日：2014-03-11
申请人： Motoyoshi YAMANO , Tetsuo Tokuda , Takashi Sakamaki , Naoto Suzuki , Satoshi Ueno , Kohichi Utsunomiya , Fumihiro Hirose
发明人： Motoyoshi YAMANO , Tetsuo Tokuda , Takashi Sakamaki , Naoto Suzuki , Satoshi Ueno , Kohichi Utsunomiya , Fumihiro Hirose
IPC分类号： G03G15/20
CPC分类号： G03G15/2057 , G03G15/2017 , G03G15/2039 , G03G15/2053
摘要： A fixing device includes an exciting coil to generate a magnetic flux and a heat generation layer disposed opposite the exciting coil to generate heat by the magnetic flux from the exciting coil. A temperature sensitive magnetic body, disposed opposite the exciting coil via the heat generation layer, obtains and loses magnetism at a temperature defined by a Curie temperature by composition adjustment to selectively create a heating region and a non-heating region of the heat generation layer. A degausser is made of a non-magnetic material having an electrical resistivity smaller than an electrical resistivity of the temperature sensitive magnetic body. The degausser is disposed opposite the exciting coil with an interval in a range of from about 4.2 mm to about 8.2 mm.
摘要翻译：定影装置包括产生磁通量的励磁线圈和与励磁线圈相对设置的发热层，以通过来自励磁线圈的磁通产生热量。通过发热层与励磁线圈相对设置的温度敏感磁体通过组成调整在由居里温度限定的温度下获得并失去磁性，以选择性地产生发热层的加热区域和非加热区域。减阻器由电阻率小于感温磁体的电阻率的非磁性材料制成。减速器与励磁线圈相对设置，间隔范围为约4.2mm至约8.2mm。

3. 发明申请

US20140294456A1 FIXING DEVICE, IMAGE FORMING APPARATUS, AND FIXING METHOD 有权
标题翻译：固定装置，图像形成装置和固定方法
公开(公告)号：US20140294456A1
公开(公告)日：2014-10-02
申请号：US14205826
申请日：2014-03-12
申请人： Satoshi UENO , Tetsuo TOKUDA , Naoto SUZUKI , Takashi SAKAMAKI , Kohichi UTSUNOMIYA , Fumihiro HIROSE , Motoyoshi YAMANO
发明人： Satoshi UENO , Tetsuo TOKUDA , Naoto SUZUKI , Takashi SAKAMAKI , Kohichi UTSUNOMIYA , Fumihiro HIROSE , Motoyoshi YAMANO
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G15/2032 , G03G2215/2032
摘要： A fixing device includes a pressing rotary body to press against a fixing rotary body. A pivotable pressure lever rotatably mounts the pressing rotary body. A pressurization cam assembly pivots the pressure lever to press the pressing rotary body against the fixing rotary body and release pressure between the pressing rotary body and the fixing rotary body. A pivotable cleaning unit includes a cleaning web separably contacting the pressing rotary body to clean the pressing rotary body, a pressure adjuster contacting the cleaning web to separably press the cleaning web against the pressing rotary body, a take-up reel to reel up the cleaning web, and a supply reel to reel out the cleaning web. A cleaning unit cam assembly contacts the cleaning unit to pivot the cleaning unit to press against and separate from the pressing rotary body.
摘要翻译：定影装置包括按压固定旋转体的按压旋转体。可旋转的压力杆可旋转地安装加压旋转体。加压凸轮组件使压力杆枢转，将按压旋转体按压在固定旋转体上并释放压力旋转体和固定旋转体之间的压力。可枢转清洁单元包括可分离地接触压力旋转体以清洁按压旋转体的清洁腹板，接触清洁腹板的压力调节器，以将清洁腹板分离地压靠压力旋转体;卷取卷轴，用于卷取清洁网和供应卷轴卷取清洁网。清洁单元凸轮组件接触清洁单元以枢转清洁单元以压靠和分离压力旋转体。

4. 发明申请

US20170131666A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 审中-公开
公开(公告)号：US20170131666A1
公开(公告)日：2017-05-11
申请号：US15293881
申请日：2016-10-14
申请人： Ryohhei SUGIYAMA , Hiroshi ONO , Hironori YAMAOKA , Motoyoshi YAMANO , Yoshikuni SASAKI , Tetsuo TOKUDA
发明人： Ryohhei SUGIYAMA , Hiroshi ONO , Hironori YAMAOKA , Motoyoshi YAMANO , Yoshikuni SASAKI , Tetsuo TOKUDA
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： An image forming apparatus includes a fixing rotator rotatable in a predetermined direction of rotation, over which a recording medium is conveyed, and a heater to heat the fixing rotator. A temperature detector detects a temperature of the fixing rotator. A controller performs a primary productivity control to define a primary productivity rate of printing per unit time based on the temperature of the fixing rotator that is detected by the temperature detector. The controller calculates an amount of power suppliable to the heater and performs a secondary productivity control simultaneously with and separately from the primary productivity control. The secondary productivity control defines a secondary productivity rate of printing per unit time based on the amount of power suppliable to the heater. The controller selects one of the primary conductivity rate and the secondary productivity rate whichever is lower as a productivity rate of the image forming apparatus.

5. 发明申请

US20170146933A1 FIXING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING FIXING DEVICE 有权
公开(公告)号：US20170146933A1
公开(公告)日：2017-05-25
申请号：US15352782
申请日：2016-11-16
申请人： Motoyoshi YAMANO , Tetsuo TOKUDA , Yoshikuni SASAKI , Hiroshi ONO , Hironori YAMAOKA , Ryohhei SUGIYAMA , Kohichi UTSUNOMIYA , Arinobu YOSHIURA , Hideo NAGAFUJI
发明人： Motoyoshi YAMANO , Tetsuo TOKUDA , Yoshikuni SASAKI , Hiroshi ONO , Hironori YAMAOKA , Ryohhei SUGIYAMA , Kohichi UTSUNOMIYA , Arinobu YOSHIURA , Hideo NAGAFUJI
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2032 , G03G15/2064
摘要： A fixing device includes a heater, a fixing rotator, a pressure rotator to press against the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed, a moving device to move the pressure rotator in directions in which the pressure rotator comes into contact with and separates from the fixing rotator, a thermal expansion amount predictor to predict an amount of thermal expansion of the fixing rotator while the recording medium is conveyed, and a nip width adjuster to control a moving distance of the pressure rotator moved by the moving device toward the fixing rotator, depending on the amount of thermal expansion of the fixing rotator predicted by the thermal expansion amount predictor, so as to adjust a width of the fixing nip to maintain a substantially constant width of the fixing nip.

6. 发明申请

US20170115610A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20170115610A1
公开(公告)日：2017-04-27
申请号：US15295574
申请日：2016-10-17
申请人： Arinobu YOSHIURA , Hideo NAGAFUJI , Kohichi UTSUNOMIYA , Yutaka IKEBUCHI , Motoyoshi YAMANO
发明人： Arinobu YOSHIURA , Hideo NAGAFUJI , Kohichi UTSUNOMIYA , Yutaka IKEBUCHI , Motoyoshi YAMANO
IPC分类号： G03G15/20
CPC分类号： G03G15/2025
摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and a heater that heats the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. A pressure rotator presses against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. A low-friction member is sandwiched between the nip formation pad and the fixing rotator and bears a lubricant that flows in a flow direction. A thermal absorber is mounted on the inner circumferential surface of the fixing rotator. At least one irregular portion, mounted on the thermal absorber, blocks the lubricant flowing in the flow direction.

7. 发明申请

US20170131664A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20170131664A1
公开(公告)日：2017-05-11
申请号：US15295275
申请日：2016-10-17
申请人： Kohichi UTSUNOMIYA , Hideo NAGAFUJI , Arinobu YOSHIURA , Yutaka IKEBUCHI , Motoyoshi YAMANO
发明人： Kohichi UTSUNOMIYA , Hideo NAGAFUJI , Arinobu YOSHIURA , Yutaka IKEBUCHI , Motoyoshi YAMANO
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a fixing rotator that is endless and rotatable in a rotation direction and a heater to heat the fixing rotator. A pressure rotator contacts an outer circumferential surface of the fixing rotator. A nip formation pad presses against the pressure rotator via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The nip formation pad includes an upstream portion disposed upstream from the fixing nip in the rotation direction of the fixing rotator. A recess is disposed in the upstream portion of the nip formation pad. A friction reducer is sandwiched between the nip formation pad and the fixing rotator and bears a lubricant.

8. 发明申请

US20160011548A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20160011548A1
公开(公告)日：2016-01-14
申请号：US14790297
申请日：2015-07-02
申请人： Kohichi UTSUNOMIYA , Hideo NAGAFUJI , Yuji ARAI , Arinobu YOSHIURA , Qifeng CUI , Shohei SAITO , Yutaka IKEBUCHI , Motoyoshi YAMANO
发明人： Kohichi UTSUNOMIYA , Hideo NAGAFUJI , Yuji ARAI , Arinobu YOSHIURA , Qifeng CUI , Shohei SAITO , Yutaka IKEBUCHI , Motoyoshi YAMANO
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G15/206 , G03G15/2064 , G03G2215/2035
摘要： A device includes a fixing belt, a holder that holds the fixing belt, a pressing member that comes in contact with the fixing belt, a nip-forming-member arranged inside the fixing belt, that forms a nip by coming in contact with the pressing member, a supporting member that supports the nip-forming-member, a side plate to which the nip-forming-member and the supporting member are fixed, and a pressing mechanism that presses a pressing roller to the nip-forming-member via the fixing belt. The supporting member includes at least two plates. The two plates are separated from each other near a contact portion where the plates come in contact with the nip-forming-member. At least a part of each of the plates is a flat surface parallel to a direction of a load applied by the pressing mechanism. Portions of the two plates on a side distant from the contact portion are joined together.
摘要翻译：一种装置包括定影带，固定定影带的保持器，与定影带接触的按压构件，布置在定影带内部的夹持形成构件，其与压制件接触形成辊隙构件，支撑夹持形成构件的支撑构件，夹持形成构件和支撑构件被固定的侧板;以及按压机构，其通过该夹持构件与压区成形构件定影带支撑构件包括至少两个板。两个板在接触部分附近彼此分开，其中板与辊隙形成部件接触。每个板的至少一部分是平行于由按压机构施加的负载方向的平坦表面。两个板的远离接触部分的一部分接合在一起。

9. 发明申请

US20150261157A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：固定装置和图像形成装置
公开(公告)号：US20150261157A1
公开(公告)日：2015-09-17
申请号：US14657656
申请日：2015-03-13
申请人： Motoyoshi YAMANO , Kohichi UTSUNOMIYA , Hiromasa TAKAGI , Kenji ISHII , Takayuki SEKI , Keitaro SHOJI , Hideo NAGAFUJI , Yuji ARAI , Arinobu YOSHIURA , Shohei SAITO , Qifeng CUI , Yutaka IKEBUCHI
发明人： Motoyoshi YAMANO , Kohichi UTSUNOMIYA , Hiromasa TAKAGI , Kenji ISHII , Takayuki SEKI , Keitaro SHOJI , Hideo NAGAFUJI , Yuji ARAI , Arinobu YOSHIURA , Shohei SAITO , Qifeng CUI , Yutaka IKEBUCHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2028 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes: a fixing member that is rotatable and in an endless shape; a heat source that heats the fixing member; a nip forming member that is arranged inside the fixing member; and a pressurizing member that is pressurized to be in contact with the nip forming member through the fixing member, to form a fixing nip. The fixing device fixes an unfixed image on a recording medium by passing the recording medium that carries the unfixed image through the fixing nip. The nip forming member includes a base layer, and a high thermal-conductive layer that is arranged on a surface layer of the base layer on a fixing nip side, and that has higher thermal conductivity than the base layer, and in the high thermal-conductive layer, a low thermal-conductive portion is arranged near an end portion in an axial direction of the fixing member.
摘要翻译：定影装置包括：可旋转且呈环状的固定构件; 加热固定部件的热源; 布置在固定部件内的辊隙形成部件; 以及加压部件，其经由所述固定部件加压而与所述辊隙形成部件接触，形成定影辊隙。定影装置通过使携带未定影图像的记录介质通过定影辊隙将未定影图像固定在记录介质上。辊隙形成构件包括基底层和布置在定影辊隙侧的基底层的表面层上并且具有比基底层更高的热导率的高导热层，导电层，低导热部分设置在固定构件的轴向方向上的端部附近。

10. 发明申请

US20150261147A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：固定装置和图像形成装置
公开(公告)号：US20150261147A1
公开(公告)日：2015-09-17
申请号：US14657406
申请日：2015-03-13
申请人： Yuji ARAI , Hideo NAGAFUJI , Kohichi UTSUNOMIYA , Arinobu YOSHIURA , Shohei SAITO , Qifeng CUI , Yutaka IKEBUCHI , Motoyoshi YAMANO
发明人： Yuji ARAI , Hideo NAGAFUJI , Kohichi UTSUNOMIYA , Arinobu YOSHIURA , Shohei SAITO , Qifeng CUI , Yutaka IKEBUCHI , Motoyoshi YAMANO
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a fixing member configured to be revolvable while being heated by a heat source; a counter rotator configured to form a nip between the fixing member and the counter rotator by applying a pressure to the fixing member in a contact state with the fixing member; a shield member disposed inside the fixing member to partially shield heat from the heat source; and a holding member attached to an end of the fixing member. The shield member includes a spacer configured to define a clearance to allow the holding member to be inserted into the fixing member from an end of the fixing member, the clearance being between the shield member and an inner surface of the end of the fixing member.
摘要翻译：定影装置包括：固定构件，被构造成在被热源加热的同时可旋转; 配置为通过在与所述固定构件接触的状态下对所述固定构件施加压力而在所述固定构件和所述反转子之间形成辊隙的反转器; 屏蔽构件，其设置在所述固定构件的内部，以部分地屏蔽来自所述热源的热量; 以及附接到所述固定构件的端部的保持构件。屏蔽构件包括间隔件，其构造成限定间隙，以允许保持构件从固定构件的端部插入到固定构件中，间隙在屏蔽构件和固定构件的端部的内表面之间。

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