公开(公告)号：US20110229178A1

公开(公告)日：2011-09-22

申请号：US13041703

申请日：2011-03-07

申请人： Tadashi OGAWA ,  Masanao EHARA ,  Satoshi UENO ,  Hiroshi SEO ,  Takahiro IMADA ,  Takamasa HASE

发明人： Tadashi OGAWA ,  Masanao EHARA ,  Satoshi UENO ,  Hiroshi SEO ,  Takahiro IMADA ,  Takamasa HASE

IPC分类号： G03G15/20

CPC分类号： G03G15/6576 ,  G03G2215/00662 ,  G03G2215/20

摘要： A fixing unit includes a fixing member to fuse a toner image on a recording medium on the recording medium; a pressure member to press against the fixing member to define a first nip between the fixing member and the pressure member through which the recording medium is transported; a shifting unit to move the pressure member relative to the fixing member to increase or decrease a pressure of the first nip; a curling correction unit disposed downstream from the first nip in a transport direction of the recording medium that imparts a second curling direction to the recording medium; and a variable setting unit operatively connected to the curling correction unit to variably set an amount of the second curling direction to the recording medium by the curling correction unit depending on the first nip pressure increased or decreased by the shifting unit.

摘要翻译： 定影单元包括用于将记录介质上的记录介质上的调色剂图像熔合的固定构件; 压力构件，以压靠所述固定构件，以在所述固定构件和所述压力构件之间限定所述记录介质被输送的第一压合部; 移动单元，用于相对于所述固定构件移动所述压力构件，以增加或减小所述第一压区的压力; 卷曲校正单元，其在所述记录介质的输送方向上设置在所述第一压区的下游，从而向所述记录介质施加第二卷曲方向; 以及可变设定单元，其可操作地连接到所述卷曲校正单元，以根据由所述移位单元增加或减少的所述第一夹紧压力，通过所述卷曲校正单元将所述第二卷曲方向的量可变地设定到所述记录介质。

公开(公告)号：US20110064502A1

公开(公告)日：2011-03-17

申请号：US12881862

申请日：2010-09-14

申请人： Takamasa HASE ,  Masanao EHARA ,  Kenji ISHI ,  Tadashi OGAWA ,  Satoshi UENO ,  Hiroshi SEO ,  Takahiro IMADA

发明人： Takamasa HASE ,  Masanao EHARA ,  Kenji ISHI ,  Tadashi OGAWA ,  Satoshi UENO ,  Hiroshi SEO ,  Takahiro IMADA

IPC分类号： G03G15/00

CPC分类号： G03G15/6576 ,  G03G15/2028 ,  G03G15/2053 ,  G03G2215/00662 ,  G03G2215/00776

摘要： A fixing system includes a fixing device that fixes a non-fixed image with heat onto a recording medium. The fixing device includes a fixing roller that generates heat and a pressing roller that presses against the fixing roller. A curl correction device is provided to correct curling of the recording medium passing through the fixing device. The curl correction device includes a heating roller unit that generates heat and an elastic roller that presses against the heating roller unit. A magnetic flux generating device is arranged in the vicinity of the fixing device and the curl correction device and generates magnetic flux.

摘要翻译： 定影系统包括将热固定在记录介质上的非固定图像的定影装置。 定影装置包括产生热量的定影辊和压靠定影辊的加压辊。 提供卷曲校正装置以校正通过定影装置的记录介质的卷曲。 卷曲校正装置包括产生热量的加热辊单元和压靠加热辊单元的弹性辊。 在定影装置和卷曲校正装置附近设置磁通量产生装置，并产生磁通量。

公开(公告)号：US20110052277A1

公开(公告)日：2011-03-03

申请号：US12861255

申请日：2010-08-23

申请人： Satoshi UENO ,  Masanao EHARA ,  Tadashi OGAWA ,  Hiroshi SEO ,  Takahiro IMADA ,  Takamasa HASE

发明人： Satoshi UENO ,  Masanao EHARA ,  Tadashi OGAWA ,  Hiroshi SEO ,  Takahiro IMADA ,  Takamasa HASE

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2025

摘要： A fixing device for fixing an unfixed toner image on a recording medium includes a fixing member, a pressure member, a sheet guide, and a pressure adjusting mechanism. The fixing member heats the unfixed toner image on the recording medium. The pressure member is disposed opposite the fixing member and presses against the fixing member to define a fixing nip through which the recording medium bearing the unfixed toner image passes to fix the unfixed toner image onto the recording medium. The position of the fixing nip is changeable. The sheet guide disposed adjacent to the pressure member guides the recording medium to the fixing nip and moves in conjunction with movement of the pressure member. The pressure adjusting mechanism operatively connected to the pressure member adjusts an amount of engagement of the pressure member relative to the fixing member. An image forming apparatus includes the fixing device.

摘要翻译： 用于将未定影的调色剂图像定影在记录介质上的定影装置包括固定构件，压力构件，片材引导件和压力调节机构。 定影构件加热记录介质上的未定影调色剂图像。 压力构件与固定构件相对地设置并且压靠固定构件以限定定影夹持部，通过该定影夹持件支承未定影调色剂图像的记录介质通过该固定夹持器将未定影的调色剂图像定影到记录介质上。 定影辊隙的位置是可变的。 与压力构件相邻设置的片材引导件将记录介质引导到定影夹持部并与压力构件的移动一起移动。 可操作地连接到压力构件的压力调节机构调节压力构件相对于固定构件的接合量。 图像形成装置包括定影装置。

公开(公告)号：US20120219312A1

公开(公告)日：2012-08-30

申请号：US13366939

申请日：2012-02-06

申请人： Shuutaroh YUASA ,  Masanao EHARA ,  Tadashi OGAWA ,  Satoshi UENO ,  Hiroshi SEO ,  Teppei KAWATA ,  Shuntaroh TAMAKI ,  Takamasa HASE ,  Kazuya SAITO ,  Kensuke YAMAJI

发明人： Shuutaroh YUASA ,  Masanao EHARA ,  Tadashi OGAWA ,  Satoshi UENO ,  Hiroshi SEO ,  Teppei KAWATA ,  Shuntaroh TAMAKI ,  Takamasa HASE ,  Kazuya SAITO ,  Kensuke YAMAJI

IPC分类号： G03G21/20 ,  G03G15/20

CPC分类号： G03G15/2039

摘要： A fixing device includes a fixing rotary body rotatable in a predetermined direction of rotation to radiate infrared rays; a pressing rotary body, rotatable in a direction counter to the direction of rotation of the fixing 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 disposed opposite the fixing rotary body to heat the fixing rotary body; a temperature detector spaced apart from the fixing rotary body to detect a temperature of the fixing rotary body based on the infrared rays from the fixing rotary body and disposed below the fixing nip in a vertical direction; and a tube disposed between the fixing rotary body and the temperature detector, the tube through which the infrared rays from the fixing rotary body enter the temperature detector.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的固定旋转体，以便辐射红外线; 按照与固定旋转体的旋转方向相反的方向旋转的按压旋转体，压靠在定影旋转体上，以形成传送带有调色剂图像的记录介质的定影辊隙; 与所述固定旋转体相对设置的加热所述固定旋转体的加热器; 与固定旋转体间隔开的温度检测器，基于来自定影旋转体的红外线检测固定旋转体的温度，并在垂直方向上设置在定影辊隙的下方; 以及设置在固定旋转体和温度检测器之间的管，来自定影旋转体的红外线通过该管进入温度检测器。

公开(公告)号：US20110229161A1

公开(公告)日：2011-09-22

申请号：US13049330

申请日：2011-03-16

申请人： Satoshi UENO ,  Masanao EHARA ,  Tadashi OGAWA ,  Hiroshi SEO ,  Takamasa HASE ,  Shuutaroh YUASA

发明人： Satoshi UENO ,  Masanao EHARA ,  Tadashi OGAWA ,  Hiroshi SEO ,  Takamasa HASE ,  Shuutaroh YUASA

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G15/2053 ,  G03G2215/2025

摘要： A thermal fixing device includes a fixing member, a flexible endless belt, a flexible endless belt, a rotary pressure member, a heating unit, and a rotation detector. The flexible endless belt is disposed on an outer circumferential surface of the fixing member. The rotary pressure member is disposed parallel to and pressing against the fixing member via the endless belt. The heating unit heats the endless belt. The rotation detector detects a rotation speed of the endless belt. The heating unit is powered off when the rotation speed of the endless belt detected by the rotation detector is at or below a predetermined threshold value.

摘要翻译： 热固定装置包括固定构件，柔性环形带，柔性环形带，旋转压力构件，加热单元和旋转检测器。 柔性环形带设置在固定构件的外周面上。 旋转压力构件经由环形带平行于并且抵靠固定构件设置。 加热单元加热环形带。 旋转检测器检测环形带的旋转速度。 当由旋转检测器检测到的环形带的旋转速度处于或低于预定阈值时，加热单元断电。

公开(公告)号：US20160274510A1

公开(公告)日：2016-09-22

申请号：US15063769

申请日：2016-03-08

申请人： Takamasa HASE ,  Susumu MATSUSAKA ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA ,  Kenji ISHII ,  Kazuhito KISHI ,  Takashi SETO ,  Hiroshi SEO ,  Ippei FUJIMOTO ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Kazunari SAWADA

发明人： Takamasa HASE ,  Susumu MATSUSAKA ,  Yasuhiko OGINO ,  Shohta KOBASHIGAWA ,  Kenji ISHII ,  Kazuhito KISHI ,  Takashi SETO ,  Hiroshi SEO ,  Ippei FUJIMOTO ,  Hiroshi YOSHINAGA ,  Hiromasa TAKAGI ,  Kazunari SAWADA

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G15/2042 ,  G03G2215/0132 ,  G03G2215/2035

摘要： A fixing device includes a primary heater, a secondary heater, and a tertiary heater to heat a primary heating span, a secondary heating span, and a tertiary heating span of a fixing rotator, respectively. A primary temperature detector and a secondary temperature detector detect a temperature of the fixing rotator. A tertiary temperature detector detects a temperature of a pressure rotator. A controller selectively performs a primary control mode to de-energize the tertiary heater and a secondary control mode to connect the secondary heater and the tertiary heater in series to energize the primary heater, the secondary heater, and the tertiary heater. The controller energizes the secondary heater and the tertiary heater in the secondary control mode based on the temperature of the fixing rotator and the pressure rotator detected by the secondary temperature detector and the tertiary temperature detector, respectively.

摘要翻译： 固定装置包括分别加热固定旋转体的主加热跨度，二次加热跨度和三次加热跨度的一次加热器，二次加热器和三次加热器。 主温度检测器和二次温度检测器检测定影旋转器的温度。 第三温度检测器检测压力旋转器的温度。 控制器选择性地执行主控制模式以使三次加热器断电，以及二次控制模式以将二次加热器和三次加热器串联连接，以使主加热器，二次加热器和三次加热器通电。 控制器基于二次温度检测器和第三温度检测器检测到的固定旋转体和压力旋转体的温度，在二次加热器和三次加热器中激励二次加热器和三次加热器。

公开(公告)号：US20130209120A1

公开(公告)日：2013-08-15

申请号：US13759443

申请日：2013-02-05

申请人： Shinichi NAMEKATA ,  Takeshi UCHITANI ,  Takamasa HASE ,  Shuutaroh YUASA ,  Kazuya SAITO ,  Ryota YAMASHINA ,  Ippei FUJIMOTO ,  Hiroshi SEO ,  Takumi WAIDA

发明人： Shinichi NAMEKATA ,  Takeshi UCHITANI ,  Takamasa HASE ,  Shuutaroh YUASA ,  Kazuya SAITO ,  Ryota YAMASHINA ,  Ippei FUJIMOTO ,  Hiroshi SEO ,  Takumi WAIDA

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： Heat-equalizing rotation of a fixing member and a pressing member for equalizing the distribution of the temperature of a surface of the fixing member in a width direction is performed after a recording medium having a size less than or equal to a predetermined size in the width direction passes a nip portion and before a recording medium having a size greater than the predetermined size in the width direction passes the nip portion. Further, a termination condition of the heat-equalizing rotation is selected from among a plurality of different kinds of termination conditions, based on image formation related information related to next image formation performed after the heat-equalizing rotation.

摘要翻译： 在具有尺寸小于或等于预定尺寸的记录介质的宽度方向上执行固定构件和用于均衡固定构件的表面在宽度方向上的温度分布的按压构件的均热旋转 方向通过夹持部分，并且在宽度方向上具有大于预定尺寸的尺寸的记录介质通过夹持部分之前。 此外，基于与在热均衡旋转之后进行的下一次图像形成相关的图像形成相关信息，从多个不同种类的终止条件中选择热均衡旋转的终止条件。

公开(公告)号：US20240012353A1

公开(公告)日：2024-01-11

申请号：US18254969

申请日：2021-12-23

申请人： Yuusuke FURUICHI ,  Takamasa HASE ,  Hiroshi SEO ,  Hideki SUGIURA ,  Maiko KOEDA ,  Masahiko ISHIKAWA

发明人： Yuusuke FURUICHI ,  Takamasa HASE ,  Hiroshi SEO ,  Hideki SUGIURA ,  Maiko KOEDA ,  Masahiko ISHIKAWA

IPC分类号： G03G15/20

CPC分类号： G03G15/2057 ,  G03G15/2064 ,  G03G15/2039 ,  G03G2215/2032

摘要： Provided is an image forming apparatus including a toner, and a fixing device configured to fix an image formed with the toner on a recording medium. The fixing device includes a fixing belt that is an endless belt, and a planar member configured to heat the fixing belt. An environmental fluctuation rate X is 45% or greater but 85% or less, and the environmental fluctuation rate X is represented by:


Environmental fluctuation rate X=(Q1−Q2)/{(Q1+Q2)/2}

where Q1 is a quantity of electric charge of the toner in an environment having a temperature of 10 degrees Celsius and relative humidity of 15%, Q2 is a quantity of electric charge of the toner in an environment having a temperature of 27 degrees Celsius and relative humidity of 80%, and a unit for Q1 and Q2 is μC/g.

公开(公告)号：US20090245897A1

公开(公告)日：2009-10-01

申请号：US12408318

申请日：2009-03-20

申请人： Hiroshi SEO ,  Takamasa Hase

发明人： Hiroshi SEO ,  Takamasa Hase

IPC分类号： G03G15/20

CPC分类号： H05B6/145 ,  G03G15/2039

摘要： A fixer includes a fixing member provided with a rotary heat generator, a pressure member to form a nip with the fixing member to sandwich the sheet, an excitation coil disposed facing a heat generation layer of the rotary heat generator to generate magnetic flux that inductively heats the heat generation layer, a loop-shaped demagnetization coil unit disposed facing the heat generation layer to generate magnetic flux that partly counteracts the magnetic flux generated by the excitation coil, a first magnetic core disposed in a first area that is enclosed by both the excitation coil and the demagnetization coil unit, and a second magnetic core disposed in a second area that is outside a loop of the demagnetization coil unit and enclosed by the excitation coil. The first magnetic core and the second magnetic core are magnetically continuous in a rotary axial direction of the rotary heat generator.

摘要翻译： 定影装置包括一个设置有旋转发热器的固定件，一个压紧件，用于与该固定件形成一夹紧片材的辊隙;一个面向旋转发热器的发热层的励磁线圈，以产生感应加热的磁通量 所述发热层是与所述发热层相对配置的环状去磁线圈单元，其产生部分抵消由所述励磁线圈产生的磁通的磁通;第一磁芯，配置在由所述励磁线圈包围的第一区域中; 线圈和去磁线圈单元，以及设置在第二区域中的第二磁芯，该第二区域位于消磁线圈单元的环路外部并被励磁线圈封闭。 第一磁芯和第二磁芯在旋转发热体的旋转轴向上是磁性连续的。

公开(公告)号：US20090148205A1

公开(公告)日：2009-06-11

申请号：US12332784

申请日：2008-12-11

申请人： Hiroshi SEO ,  Takamasa HASE

发明人： Hiroshi SEO ,  Takamasa HASE

IPC分类号： G03G15/20 ,  H05B6/02

CPC分类号： G03G15/2042

摘要： A fixing device includes a heat applying system having an exciting coil that creates a magnetic flux for generating induction heat in a heat generation layer provided in a fixing roller. Plural demagnetizing coils are stacked in plural layers partially overlying the exciting coil to cancel the magnetic flux at one end of the fixing roller. The plural demagnetizing coils partially overlap each other.

摘要翻译： 定影装置包括具有励磁线圈的加热系统，该励磁线圈在设置在定影辊中的发热层中产生用于产生感应热的磁通量。 多个去磁线圈层叠在部分地覆盖励磁线圈的多个层中，以消除定影辊一端的磁通量。 多个消磁线圈彼此部分重叠。