公开(公告)号：US08977156B2

公开(公告)日：2015-03-10

申请号：US14173171

申请日：2014-02-05

申请人： Takeshi Yamamoto ,  Kazuhito Kishi ,  Takumi Waida ,  Masahiro Samei ,  Hiroshi Ono ,  Ippei Fujimoto ,  Hiroshi Seo ,  Ryota Yamashina ,  Yasunori Ishigaya

发明人： Takeshi Yamamoto ,  Kazuhito Kishi ,  Takumi Waida ,  Masahiro Samei ,  Hiroshi Ono ,  Ippei Fujimoto ,  Hiroshi Seo ,  Ryota Yamashina ,  Yasunori Ishigaya

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a rotatable, endless fixing belt; a rotatable contact member configured to contact a circumferential surface of the fixing belt to form a nip in association with the fixing belt; and a heating member disposed at an interior surface of the fixing belt, configured to heat the fixing belt. The heating member includes a multiple heat sources arranged along the width of a sheet of recording media in a direction perpendicular to a sheet conveyance direction. A controller changes an area to be heated by each heat source based on image data and corresponding to an unfixed image on the sheet. The fixing belt is heated by the heating member so that the unfixed image on the sheet that has been conveyed to the nip is fixed onto the sheet at least with heat. The heating member is disposed at a portion other than the fixing nip.

摘要翻译： 定影装置包括可旋转的环形定影带; 可旋转接触构件，其构造成接触所述定影带的周向表面以与所述定影带相关联地形成辊隙; 以及设置在所述定影带的内表面处的加热构件，其构造成加热所述定影带。 加热构件包括沿垂直于片材输送方向的方向沿着记录介质片的宽度布置的多个热源。 控制器基于图像数据改变每个热源要加热的区域，并对应于片材上的未定影图像。 定影带被加热部件加热，使得已经输送到辊隙的片材上的未定影图像至少热固定在片材上。 加热构件设置在定影夹持部以外的部分。

公开(公告)号：US09568868B2

公开(公告)日：2017-02-14

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：US20140219696A1

公开(公告)日：2014-08-07

申请号：US14161078

申请日：2014-01-22

申请人： Ippei Fujimoto ,  Kazuhito Kishi ,  Masahiro Samei ,  Hiroshi Ono ,  Hiroshi Seo ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida ,  Takeshi Yamamoto

发明人： Ippei Fujimoto ,  Kazuhito Kishi ,  Masahiro Samei ,  Hiroshi Ono ,  Hiroshi Seo ,  Yasunori Ishigaya ,  Ryota Yamashina ,  Takumi Waida ,  Takeshi Yamamoto

IPC分类号： G03G15/20

CPC分类号： G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body, an opposed member opposing the fixing rotary body to form a nipping portion, and a heater to heat the fixing rotary body. The heater includes heat generators arranged in a width direction of a recording medium and separately supplied with power. When an unfixed image on the medium has an image area and a non-image area, power supplied to each of the heat generators is controlled so that, of the heat generators, a first heat generator corresponding to the image area becomes a higher temperature and second heat generators corresponding to the non-image area becomes a lower temperature. When the second heat generators are adjacent to each other, power supplied to one of the second heat generators closer to the image area is set to be greater than power supplied to another of the second heat generators farther from the image area.

摘要翻译： 定影装置包括固定旋转体，与定影旋转体相对的相对构件以形成夹持部分，以及加热器来加热定影旋转体。 加热器包括沿记录介质的宽度方向布置并分开供电的发热体。 当介质上的未定影图像具有图像区域和非图像区域时，控制供应给每个发热体的功率，使得在发热体中，对应于图像区域的第一热发生器变得更高温度， 对应于非图像区域的第二热发生器变为较低温度。 当第二发热体彼此相邻时，供给到靠近图像区域的第二热发生器中的一个的功率被设定为大于向图像区域更远的另一个第二发热体提供的功率。

公开(公告)号：US08774666B2

公开(公告)日：2014-07-08

申请号：US13716651

申请日：2012-12-17

申请人： Kazuya Saito ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

发明人： Kazuya Saito ,  Takeshi Uchitani ,  Takamasa Hase ,  Shuutaroh Yuasa ,  Ippei Fujimoto ,  Shinichi Namekata ,  Ryota Yamashina ,  Hiroshi Seo ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/2078 ,  G03G15/2007 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： A fixing device includes a heating device to heat an endless rotary body with radiant heat, a power source to supply power to the heating device, a first heat source to heat a region on the endless rotary body corresponding to a width of the small size sheet, and a second heat source to heat regions on the endless rotary body corresponding to both widthwise ends of the large size sheet outside the width of the small size sheet. The power source supplies power only to the first heat source when the small size sheet is printed and to both the first and second heat sources when the large size sheet is printed. The power source supplies more power to the first heat source when the small size sheet is printed than when the large size sheet is printed within a maximum power available to the fixing device.

摘要翻译： 定影装置包括：用辐射热加热环形旋转体的加热装置，向加热装置供电的电源;加热环形旋转体上对应于小尺寸片材宽度的区域的第一热源; 以及第二热源，用于对与所述小尺寸片材的宽度以外的所述大尺寸片材的宽度方向两端部对应的所述环形旋转体上的区域进行加热。 当打印小尺寸片材时，电源仅向第一热源供电，并且当打印大尺寸片材时，电源仅供给第一热源。 当打印小尺寸片材时，电源为第一热源提供更多的电力，而不是在定影装置可用的最大功率内打印大尺寸片材时。

公开(公告)号：US09176438B2

公开(公告)日：2015-11-03

申请号：US14193260

申请日：2014-02-28

申请人： Ryota Yamashina ,  Takumi Waida ,  Hiroshi Seo ,  Takashi Seto

发明人： Ryota Yamashina ,  Takumi Waida ,  Hiroshi Seo ,  Takashi Seto

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/2046 ,  G03G15/5029 ,  G03G15/6588 ,  G03G2215/00599 ,  G03G2215/00603 ,  G03G2215/00751

摘要： An image forming apparatus includes an image forming device to form a toner image on a recording medium under a prescribed image forming condition, a fixing device to fix the toner image borne on the recording medium thereonto by heating the recording medium based on target fixing temperature, and a detector to detect a type of recording medium. The type is used in setting at least one of the image forming condition and the target fixing temperature. The inequality Tb>Ta is established when Ta represents a time period needed to reach a setting of fixing temperature allocated to the recording medium with its tip detected by the detector after detection of the tip and Tb represents a time period needed for the recording medium with its tip detected by the detector to reach the fixing device after detection of the tip.

摘要翻译： 图像形成装置包括在规定的图像形成条件下在记录介质上形成调色剂图像的图像形成装置，通过基于目标定影温度加热记录介质将调色剂图像承载在其上的定影装置， 以及检测器，用于检测记录介质的类型。 该类型用于设置图像形成条件和目标定影温度中的至少一个。 当Ta表示在检测到尖端后由检测器检测到的尖端到达分配给记录介质的定影温度的设置所需的时间段时，建立不等式Tb> Ta，Tb表示记录介质所需的时间段， 其检测器的尖端在检测到尖端后到达定影装置。

公开(公告)号：US09170544B2

公开(公告)日：2015-10-27

申请号：US14470096

申请日：2014-08-27

申请人： Ryota Yamashina ,  Hiroshi Seo ,  Arinobu Yoshiura ,  Takumi Waida

发明人： Ryota Yamashina ,  Hiroshi Seo ,  Arinobu Yoshiura ,  Takumi Waida

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/55 ,  G03G15/2039 ,  G03G15/502 ,  G03G15/5029 ,  G03G2215/00738

摘要： An image forming apparatus for forming an image on each of recording media includes an optical sensor to irradiate each of the recording media with light to detect smoothness of each of the recording media according to a strength of specularly reflected light of the light with which each of the recording media is irradiated, and a processor to compare the smoothness of the recording media to determine whether a normal image can be formed on one of the recording media having a smoothness detected last.

摘要翻译： 用于在每个记录介质上形成图像的图像形成装置包括光学传感器，用于根据光的镜面反射光的强度来照射每个记录介质的光以检测每个记录介质的平滑度， 照射记录介质，以及处理器，用于比较记录介质的平滑度，以确定是否可以在具有最后检测到的平滑度的记录介质中的一个上形成正常图像。

公开(公告)号：US20140270822A1

公开(公告)日：2014-09-18

申请号：US14193260

申请日：2014-02-28

申请人： Ryota YAMASHINA ,  Takumi Waida ,  Hiroshi Seo ,  Takashi Seto

发明人： Ryota YAMASHINA ,  Takumi Waida ,  Hiroshi Seo ,  Takashi Seto

IPC分类号： G03G15/20

CPC分类号： G03G15/2046 ,  G03G15/5029 ,  G03G15/6588 ,  G03G2215/00599 ,  G03G2215/00603 ,  G03G2215/00751

摘要： An image forming apparatus includes an image forming device to form a toner image on a recording medium under a prescribed image forming condition, a fixing device to fix the toner image borne on the recording medium thereonto by heating the recording medium based on target fixing temperature, and a detector to detect a type of recording medium. The type is used in setting at least one of the image forming condition and the target fixing temperature. The inequality Tb>Ta is established when Ta represents a time period needed to reach a setting of fixing temperature allocated to the recording medium with its tip detected by the detector after detection of the tip and Tb represents a time period needed for the recording medium with its tip detected by the detector to reach the fixing device after detection of the tip.

摘要翻译： 图像形成装置包括在规定的图像形成条件下在记录介质上形成调色剂图像的图像形成装置，通过基于目标定影温度加热记录介质将调色剂图像承载在其上的定影装置， 以及检测器，用于检测记录介质的类型。 该类型用于设置图像形成条件和目标定影温度中的至少一个。 当Ta表示在检测到尖端后由检测器检测到的尖端到达分配给记录介质的定影温度的设置所需的时间段时，建立不等式Tb> Ta，Tb表示记录介质所需的时间段， 其检测器的尖端在检测到尖端后到达定影装置。

公开(公告)号：US20150071661A1

公开(公告)日：2015-03-12

申请号：US14473448

申请日：2014-08-29

申请人： Ryota Yamashina ,  Hiroshi Seo ,  Takashi Seto ,  Arinobu Yoshiura

发明人： Ryota Yamashina ,  Hiroshi Seo ,  Takashi Seto ,  Arinobu Yoshiura

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/5054

摘要： An image forming apparatus includes a conveyance passage unit, a fixing device, an optical sensor, a fixing condition adjuster, and a regulator. A recording medium passes through the conveyance passage unit. The fixing device fixes a toner image onto the recording medium. The optical sensor includes a light-emitting device and a light-receiving device to detect smoothness of the recording medium according to strength of light received. The fixing condition adjuster adjusts fixing conditions according to the smoothness detected. The regulator is disposed in the conveyance passage unit to regulate conveyance of the recording medium, such that at least a part of the recording medium passes through an irradiated area including an intersection that is determined by an emission angle of a first optical axis of light emitted by the light-emitting device and a reflection angle of a second optical axis of light received by the light-receiving device.

摘要翻译： 图像形成装置包括输送通道单元，定影装置，光学传感器，定影条件调节器和调节器。 记录介质通过输送通道单元。 定影装置将调色剂图像固定到记录介质上。 光学传感器包括发光装置和光接收装置，用于根据所接收的光的强度检测记录介质的平滑度。 固定条件调节器根据检测到的平滑度调整固定条件。 调节器设置在输送通道单元中以调节记录介质的输送，使得记录介质的至少一部分通过包括由发射的第一光轴的发射角确定的交点的照射区域 并且由光接收装置接收的光的第二光轴的反射角。

公开(公告)号：US09195183B2

公开(公告)日：2015-11-24

申请号：US14473448

申请日：2014-08-29

申请人： Ryota Yamashina ,  Hiroshi Seo ,  Takashi Seto ,  Arinobu Yoshiura

发明人： Ryota Yamashina ,  Hiroshi Seo ,  Takashi Seto ,  Arinobu Yoshiura

IPC分类号： G03G15/20

CPC分类号： G03G15/2028 ,  G03G15/5054

摘要： An image forming apparatus includes a conveyance passage unit, a fixing device, an optical sensor, a fixing condition adjuster, and a regulator. A recording medium passes through the conveyance passage unit. The fixing device fixes a toner image onto the recording medium. The optical sensor includes a light-emitting device and a light-receiving device to detect smoothness of the recording medium according to strength of light received. The fixing condition adjuster adjusts fixing conditions according to the smoothness detected. The regulator is disposed in the conveyance passage unit to regulate conveyance of the recording medium, such that at least a part of the recording medium passes through an irradiated area including an intersection that is determined by an emission angle of a first optical axis of light emitted by the light-emitting device and a reflection angle of a second optical axis of light received by the light-receiving device.

摘要翻译： 图像形成装置包括输送通道单元，定影装置，光学传感器，定影条件调节器和调节器。 记录介质通过输送通道单元。 定影装置将调色剂图像固定到记录介质上。 光学传感器包括发光装置和光接收装置，用于根据所接收的光的强度检测记录介质的平滑度。 固定条件调节器根据检测到的平滑度调整固定条件。 调节器设置在输送通道单元中以调节记录介质的输送，使得记录介质的至少一部分通过包括由发射的第一光轴的发射角确定的交点的照射区域 并且由光接收装置接收的光的第二光轴的反射角。

公开(公告)号：US09046832B2

公开(公告)日：2015-06-02

申请号：US13864320

申请日：2013-04-17

申请人： Masahiro Samei ,  Hiroshi Seo ,  Ryota Yamashina

发明人： Masahiro Samei ,  Hiroshi Seo ,  Ryota Yamashina

IPC分类号： G03G15/20

CPC分类号： G03G15/2007 ,  G03G15/2053 ,  G03G15/2064 ,  G03G2215/2035

摘要： A fixing device includes an endless belt formed into a loop and rotatable in a given direction of rotation. An opposed rotary body contacts the endless belt to form a fixing nip therebetween through which a recording medium bearing a toner image is conveyed. A heater is disposed in proximity to an irradiation span spanning on an inner circumferential surface of the endless belt in a circumferential direction thereof to emit light that irradiates and heats the irradiation span of the endless belt. A shield is interposed between the heater and the irradiation span of the endless belt in a diametrical direction thereof to shield the irradiation span of the endless belt from heated air surrounding the heater.

摘要翻译： 固定装置包括环形带，其形成为环并且沿给定的旋转方向可旋转。 相对的旋转体与环形带接触以在其间形成定影辊隙，通过该固定夹持器传送带有调色剂图像的记录介质。 加热器设置在跨越环形带的圆周方向的内周面上的照射跨度附近，以发射照射并加热环形带的照射跨度的光。 在加热器和环形带的径向的辐射跨度之间插入屏蔽件，以将环形带的照射跨度从围绕加热器的加热空气屏蔽。