公开(公告)号：US09411278B2

公开(公告)日：2016-08-09

申请号：US14474939

申请日：2014-09-02

申请人： Motoyoshi Yamano ,  Shinichi Namekata ,  Ryota Yamashina ,  Takumi Waida ,  Shinji Kato ,  Shuji Hirai ,  Terumichi Ochi

发明人： Motoyoshi Yamano ,  Shinichi Namekata ,  Ryota Yamashina ,  Takumi Waida ,  Shinji Kato ,  Shuji Hirai ,  Terumichi Ochi

IPC分类号： G03G15/00 ,  G03G15/20

CPC分类号： G03G15/2046 ,  G03G2215/00447 ,  G03G2215/00751

摘要： An image forming apparatus includes paper trays to contain and feed a recording sheet on which a toner image is transferred; status sensors to detect a storage status of the recording sheet contained in the paper trays; a sheet sensor to detect a smoothness of the recording sheet; a memory to store detection values of the smoothness detected by the sheet sensor; a fixing device to heat and press the toner image transferred onto the recording sheet and fix it onto the recording sheet; and a control circuit to determine a target fixing temperature of the fixing device based on the detection values stored in the memory. The control circuit determines the target fixing temperature for successive recording sheets depending on the detected smoothness, and resets the detection values stored in the memory to zero when the status sensors detect a change in the storage status of the paper trays.

摘要翻译： 图像形成装置包括：纸盘，用于容纳并供给其上转印有调色剂图像的记录纸; 状态传感器，用于检测包含在纸盘中的记录纸的存储状态; 用于检测记录纸的平滑度的纸张传感器; 用于存储由片材传感器检测到的平滑度的检测值的存储器; 固定装置，用于加热和按压转印到记录纸上的调色剂图像并将其固定在记录纸上; 以及控制电路，用于基于存储在存储器中的检测值来确定定影装置的目标定影温度。 控制电路根据检测到的平滑度确定连续记录片材的目标固定温度，并且当状态传感器检测纸盘的存储状态的变化时，将存储在存储器中的检测值重置为零。

公开(公告)号：US20150078770A1

公开(公告)日：2015-03-19

申请号：US14474939

申请日：2014-09-02

申请人： Motoyoshi YAMANO ,  Shinichi Namekata ,  Ryota Yamashina ,  Takumi Waida ,  Shinji Kato ,  Shuji Hirai ,  Terumichi Ochi

发明人： Motoyoshi YAMANO ,  Shinichi Namekata ,  Ryota Yamashina ,  Takumi Waida ,  Shinji Kato ,  Shuji Hirai ,  Terumichi Ochi

IPC分类号： G03G15/20 ,  G03G15/00

CPC分类号： G03G15/2046 ,  G03G2215/00447 ,  G03G2215/00751

摘要： An image forming apparatus includes paper trays to contain and feed a recording sheet on which a toner image is transferred; status sensors to detect a storage status of the recording sheet contained in the paper trays; a sheet sensor to detect a smoothness of the recording sheet; a memory to store detection values of the smoothness detected by the sheet sensor; a fixing device to heat and press the toner image transferred onto the recording sheet and fix it onto the recording sheet; and a control circuit to determine a target fixing temperature of the fixing device based on the detection values stored in the memory. The control circuit determines the target fixing temperature for successive recording sheets depending on the detected smoothness, and resets the detection values stored in the memory to zero when the status sensors detect a change in the storage status of the paper trays.

摘要翻译： 图像形成装置包括：纸盘，用于容纳并供给其上转印有调色剂图像的记录纸; 状态传感器，用于检测包含在纸盘中的记录纸的存储状态; 用于检测记录纸的平滑度的纸张传感器; 用于存储由片材传感器检测到的平滑度的检测值的存储器; 固定装置，用于加热和按压转印到记录纸上的调色剂图像并将其固定在记录纸上; 以及控制电路，用于基于存储在存储器中的检测值来确定定影装置的目标定影温度。 控制电路根据检测到的平滑度确定连续记录片材的目标固定温度，并且当状态传感器检测纸盘的存储状态的变化时，将存储在存储器中的检测值重置为零。

公开(公告)号：US09557697B2

公开(公告)日：2017-01-31

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 detector 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 a number of recording media detected by the sensor, to adjust a luminosity of the light source based on the calculated decreased output amount of the sensor and determine a type of the recording medium based on an output of the sensor after the adjustment of the luminosity of the light source and based on the number of recording media detected by the sensor.

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器。 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每个记录介质的数量，从传感器的输出百分比减小来计算传感器的输出量的减少，以根据传感器检测到的光源的亮度来调节 计算出的传感器的减少的输出量，并且在调整光源的亮度之后并且基于由传感器检测的记录介质的数量，基于传感器的输出来确定记录介质的类型。

公开(公告)号：US09250592B2

公开(公告)日：2016-02-02

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： G03G15/20 ,  G03G15/00

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 检测在图像形成操作期间使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，从处理器接收到存储在存储器中的记录介质之一的送纸允许信号 直到记录介质被排出。

公开(公告)号：US09146512B2

公开(公告)日：2015-09-29

申请号：US13761624

申请日：2013-02-07

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 ,  G03G15/2039 ,  G03G15/2042 ,  G03G2215/2035

摘要： When calculating an actual turn-on duty based on a required duty according to a feedback control, the actual turn-on duty is corrected using a correction table or a correction conversion formula such that a required turn-on duty and the actual turn-on duty coincide with each other. A fixing heater is controlled according to the corrected actual turn-on duty.

摘要翻译： 当根据反馈控制基于所需的占空比来计算实际接通占空比时，使用校正表或校正转换公式校正实际接通占空比，使得所需开启占空比和实际接通 职责相互重合。 固定加热器根据修正的实际接通功率进行控制。

公开(公告)号：US20130209124A1

公开(公告)日：2013-08-15

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：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：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：US09069302B2

公开(公告)日：2015-06-30

申请号：US14167121

申请日：2014-01-29

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2039 ,  G03G2215/2035

摘要： A fixing device includes a fixing rotary body, an opposed member, a heater, and a heating controller. The opposed member opposes the fixing rotary body to form a nipping portion therebetween. The heater includes heat generators arranged in a width direction of a recording medium. When the recording medium fed to the nipping portion has an image area and a non-image area, the heating controller controls the outputs of the heat generators based on image information so that a first heat generator of the heat generators corresponding to the image area is higher in temperature and a second heat generator of the heat generators corresponding to the non-image area is lower in temperature. Based on information other than the image information, the heating controller temporarily shifts an area of the fixing rotary body corresponding to the non-image area to a temperature differing from a normal temperature.

摘要翻译： 定影装置包括固定旋转体，相对构件，加热器和加热控制器。 相对的构件与固定旋转体相对，以在它们之间形成夹紧部分。 加热器包括沿记录介质的宽度方向布置的热发生器。 当馈送到夹持部分的记录介质具有图像区域和非图像区域时，加热控制器基于图像信息控制发热体的输出，使得与图像区域对应的热发生器的第一热发生器为 对应于非图像区域的发热体的温度越高，第二发热体的温度越低。 基于除了图像信息之外的信息，加热控制器将与非图像区域相对应的定影旋转体的区域临时移动到与正常温度不同的温度。