公开(公告)号：US20150261155A1

公开(公告)日：2015-09-17

申请号：US14644903

申请日：2015-03-11

申请人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Kohichi UTSUNOMIYA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO ,  Kenji ISHII ,  Hiromasa TAKAGI ,  Keitaro SHOJI

发明人： Arinobu YOSHIURA ,  Hideo NAGAFUJI ,  Yuji ARAI ,  Kohichi UTSUNOMIYA ,  Shohei SAITO ,  Qifeng CUI ,  Yutaka IKEBUCHI ,  Motoyoshi YAMANO ,  Kenji ISHII ,  Hiromasa TAKAGI ,  Keitaro SHOJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes: a rotatable fixing member formed as an endless belt; a heat source to heat the fixing member; a nip-forming member being not rotatable and arranged inside the fixing member; and a pressure member arranged outside the fixing member and forming a nip between the pressure member and the fixing member. The nip-forming member is formed of a first heat transmission unit and a sliding sheet. The first heat transmission unit includes an abutting part abutting the fixing member with the sliding sheet therebetween, and a bent part or bent parts extending inside the fixing member at upstream or upstream and downstream of the nip in a transport direction of a recording medium. A retaining part to catch and retain the sliding sheet is provided at a tip of at least the bent part at upstream of the nip in the transport direction.

摘要翻译： 定影装置包括：形成为环形带的可旋转固定构件; 用于加热固定构件的热源; 夹持部件不能旋转并且布置在固定部件的内部; 以及压力构件，其布置在所述固定构件的外部并且在所述压力构件和所述固定构件之间形成辊隙。 夹持部件由第一传热单元和滑动片形成。 所述第一传热单元包括邻接所述固定部件与所述滑动片之间的抵接部，以及在所述辊隙的上游或下游以及所述夹持部的沿所述记录介质的输送方向延伸的所述固定部件内的弯曲部或弯曲部。 在运送方向的夹持部的上游，至少设有弯曲部的前端，设置有夹持并保持滑动片的保持部。

公开(公告)号：US20150261161A1

公开(公告)日：2015-09-17

申请号：US14643082

申请日：2015-03-10

申请人： Takumi WAIDA ,  Shuji HIRAI ,  Terumichi OCHI ,  Shinji KATO ,  Ryota YAMASHINA ,  Keitaro SHOJI

发明人： Takumi WAIDA ,  Shuji HIRAI ,  Terumichi OCHI ,  Shinji KATO ,  Ryota YAMASHINA ,  Keitaro SHOJI

IPC分类号： G01J4/00 ,  G03G15/00

CPC分类号： G03G15/5029 ,  G03G2215/00616 ,  G03G2215/00734

摘要： A recording media smoothness detector includes a sensor and a calculator. The sensor includes a light source to emit light toward a recording medium and a light-detecting device to detect an amount of light reflected by the recording medium. The calculator includes a first memory to store an initial output value of the sensor and a second memory to store a decreased output percentage of the sensor relative to the initial output value per number of recording media detected. The calculator is configured to calculate a decreased output amount of the sensor from the decreased output percentage of the sensor per number of recording media detected, according to number of recording media detected by the sensor, to adjust a luminosity of the sensor based on the calculated decreased output amount of the sensor and determine smoothness of the recording medium based on an output of the sensor after the adjustment.

摘要翻译： 记录介质平滑度检测器包括传感器和计算器。 传感器包括朝向记录介质发射光的光源和用于检测由记录介质反射的光量的光检测装置。 计算器包括用于存储传感器的初始输出值的第一存储器和用于存储传感器相对于每个检测到的记录介质的初始输出值减小的输出百分比的第二存储器。 计算器被配置为根据传感器检测到的记录介质的数量，根据传感器检测到的记录介质的数量，从传感器的输出百分比减小来计算传感器的输出量，以根据计算出的传感器的发光度来调节传感器的亮度 降低传感器的输出量，并且在调整之后基于传感器的输出确定记录介质的平滑度。

公开(公告)号：US20160161890A1

公开(公告)日：2016-06-09

申请号：US15040691

申请日：2016-02-10

申请人： Keitaro SHOJI ,  Kenji ISHll ,  Hiromasa TAKAGI ,  Takayuki SEKI

发明人： Keitaro SHOJI ,  Kenji ISHll ,  Hiromasa TAKAGI ,  Takayuki SEKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.

公开(公告)号：US20150125193A1

公开(公告)日：2015-05-07

申请号：US14531313

申请日：2014-11-03

申请人： Kenji ISHII ,  Hiromasa TAKAGI ,  Takayuki SEKI ,  Keitaro SHOJI

发明人： Kenji ISHII ,  Hiromasa TAKAGI ,  Takayuki SEKI ,  Keitaro SHOJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2025 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2035 ,  G03G2215/2038

摘要： A fixing device includes a fixing rotator, a nip formation pad disposed opposite an inner circumferential surface of the fixing rotator, and a pressure rotator pressed against the nip formation pad via the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A support is disposed opposite the pressure rotator via the nip formation pad to support the nip formation pad against pressure from the pressure rotator. The nip formation pad conducts heat in a thickness direction thereof perpendicular to an axial direction of the fixing rotator and a recording medium conveyance direction. The nip formation pad includes a multi-conductivity layer having a thermal conductivity varying in the axial direction of the fixing rotator and a support side layer contacting the support and having a thermal conductivity greater than a thermal conductivity of the support.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体的内周面相对配置的压区形成垫，以及经由固定旋转体压靠在压区形成垫上的压力旋转体，在固定旋转体和压力旋转体之间形成定影辊隙 传送记录媒体。 支撑件通过压区形成垫与压力旋转体相对设置，以支撑压区形成垫抵抗来自压力旋转器的压力。 压区形成垫沿与固定旋转体的轴向垂直的厚度方向和记录介质输送方向传导热量。 压区形成垫包括具有在固定旋转体的轴向上变化的热导率的多导电层和与支撑体接触并具有大于载体的热导率的导热性的支撑侧层。

公开(公告)号：US20230010218A1

公开(公告)日：2023-01-12

申请号：US17847589

申请日：2022-06-23

申请人： Keitaro SHOJI ,  Takuya SESHITA ,  Yuusuke FURUICHI

发明人： Keitaro SHOJI ,  Takuya SESHITA ,  Yuusuke FURUICHI

IPC分类号： G03G15/20

摘要： A heating device includes a first rotator, a second rotator, a heater, and a first, second and third temperature sensors. The second rotator contacts an outer circumferential surface of the first rotator to form a nip through which a recording medium passes. The heater heats the first rotator. The first temperature sensor is disposed outside a space extending from a first region through which a minimum recording medium passes and detects the temperature of the first rotator. The second temperature sensor is disposed outside the space extending from the first region and detects the temperature of the heater. The third temperature sensor is disposed outside the space extending from the first region and detects the temperature of the second rotator. At least one of the second temperature sensor or the third temperature sensor is disposed outside a space extending from a second region through which a maximum sheet passes.

公开(公告)号：US20150055993A1

公开(公告)日：2015-02-26

申请号：US14467135

申请日：2014-08-25

申请人： Keitaro SHOJI

发明人： Keitaro SHOJI

IPC分类号： G03G15/20

CPC分类号： G03G15/2057 ,  G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater disposed opposite the fixing rotator heats the fixing rotator. A nip formation pad disposed opposite an inner circumferential surface of the fixing rotator includes a decreased thermal conduction portion having a decreased thermal conductivity to conduct heat in a thickness direction of the nip formation pad perpendicular to an axial direction of the fixing rotator and an increased thermal conduction portion having an increased thermal conductivity to conduct heat in the thickness direction of the nip formation pad. The increased thermal conduction portion is disposed opposite an overheating span of the fixing rotator in the axial direction thereof where the fixing rotator is susceptible to overheating.

摘要翻译： 定影装置包括固定旋转器和与固定旋转体相对设置的相对旋转体，以在其间传送承载调色剂图像的记录介质的定影夹持部。 与定影旋转体相对设置的加热器加热定影旋转器。 与定影旋转体的内周面相对设置的辊隙形成垫包括具有降低的热传导率的减少的热传导部分，其在垂直于定影旋转体的轴向方向上在辊隙形成垫的厚度方向上传导热量，并且增加热量 导电部分具有增加的导热性，以在压区形成垫的厚度方向上传导热量。 增加的导热部分与定影旋转体的轴向方向上的定影旋转体的过热跨度相对设置，其中定影旋转体易于过热。

公开(公告)号：US20150205241A1

公开(公告)日：2015-07-23

申请号：US14592278

申请日：2015-01-08

申请人： Ryota YAMASHINA ,  Keitaro SHOJI ,  Shuji HIRAI ,  Takumi WAIDA ,  Terumichi OCHI

发明人： Ryota YAMASHINA ,  Keitaro SHOJI ,  Shuji HIRAI ,  Takumi WAIDA ,  Terumichi OCHI

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/5029 ,  G03G15/2039

摘要： An image forming apparatus includes a storage to store recording media, a smoothness detector to detect smoothness of the recording media, a memory unit to store smoothness values detected by the smoothness detector, a transfer device to transfer a toner image onto the recording media, a fixing device to fix the toner image onto the recording media, a temperature controller to determine a target fixing temperature for a second and subsequent recording media based on a predicted value calculated from the smoothness values, and a processor to reset the smoothness values in response to detection of an external factor that causes the smoothness detector to provide a smoothness value out of a predetermined range of the predicted value during an image forming operation from when the processor receives a sheet-feeding permission signal of one of the recording media stored in the storage until the recording medium is ejected.

摘要翻译： 图像形成装置包括存储记录介质的存储器，用于检测记录介质的平滑度的平滑度检测器，存储由平滑度检测器检测的平滑度值的存储单元，将调色剂图像转印到记录介质上的传送装置， 固定装置，用于将调色剂图像固定到记录介质上，温度控制器，用于基于从平滑度值计算的预测值来确定第二和随后的记录介质的目标定影温度，以及处理器，以响应于 在图像形成操作期间，从处理器接收到存储在存储器中的记录介质之一的送纸许可信号时，使得平滑度检测器在预定值的预定范围内提供平滑度值的外部因素的检测 直到记录介质被排出。

公开(公告)号：US20150055994A1

公开(公告)日：2015-02-26

申请号：US14467341

申请日：2014-08-25

申请人： Keitaro SHOJI ,  Kenji ISHII ,  Hiromasa TAKAGI ,  Takayuki SEKI

发明人： Keitaro SHOJI ,  Kenji ISHII ,  Hiromasa TAKAGI ,  Takayuki SEKI

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotator rotatable in a predetermined direction of rotation and an opposed rotator disposed opposite the fixing rotator to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed opposite the fixing rotator to heat the fixing rotator. A nip formation pad is disposed opposite an inner circumferential surface of the fixing rotator. The nip formation pad includes a base, a first thermal conductor sandwiched between the base and the fixing rotator and having a first thermal conductivity greater than a thermal conductivity of the base, and a bulge projecting from the first thermal conductor toward the opposed rotator at a downstream end of the first thermal conductor in a recording medium conveyance direction.

摘要翻译： 定影装置包括可沿预定旋转方向旋转的定影旋转器和与定影旋转体相对设置的相对旋转体，以在其间传送承载有调色剂图像的记录介质的定影辊隙。 加热器与定影旋转器相对设置，以加热定影旋转器。 压区形成垫与定影旋转体的内周面相对设置。 压区形成垫包括基座，夹在基座和固定旋转体之间的第一热导体，其第一导热率大于基座的导热率，以及从第一导热体向相对旋转体突出的凸起， 第一热导体的下游端在记录介质输送方向上。