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：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：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：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。

公开(公告)号：US08965230B2

公开(公告)日：2015-02-24

申请号：US13753827

申请日：2013-01-30

申请人： Ryota Yamashina ,  Hiroshi Seo ,  Ippei Fujimoto ,  Takumi Waida

发明人： Ryota Yamashina ,  Hiroshi Seo ,  Ippei Fujimoto ,  Takumi Waida

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G2215/2029

摘要： A fixing device includes a rotatable fuser member, a rotatable pressure member, a heater, and a controller. The rotatable fuser member is subjected to heating. The rotatable pressure member is disposed opposite the fuser member. The pressure member presses against the fuser member to form a fixing nip therebetween, through which multiple recording media, each spaced apart from each other by an interval distance in a conveyance direction, are sequentially conveyed at a conveyance speed. The heater is disposed adjacent to the fuser member to heat the fuser member. The controller is operatively connected to the heater to control power supply to the heater through a series of on-off switching control cycles, each including an on-time during which the heater power supply is on, and an off-time during which the heater power supply is off, in synchronization with conveyance of the recording medium.

摘要翻译： 定影装置包括可旋转的定影器构件，可旋转的压力构件，加热器和控制器。 可旋转的定影器构件经受加热。 可旋转的压力构件设置成与定影器构件相对。 压力构件压靠定影部件，在其间形成定影辊隙，通过该定影辊将输送方向间隔开的多个记录介质以传送速度依次传送。 加热器邻近定影器构件设置以加热定影器构件。 控制器可操作地连接到加热器，以通过一系列开 - 关切换控制循环来控制对加热器的供电，每个开关控制周期包括加热器电源打开的导通时间和加热器电源打开期间的关闭时间 与记录介质的输送同步，电源关闭。

公开(公告)号：US20140227001A1

公开(公告)日：2014-08-14

申请号：US14174134

申请日：2014-02-06

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

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

IPC分类号： G03G15/20

CPC分类号： G03G15/2042

摘要： A fixing device includes a rotatable fixing member to rotate while contacting an unfixed image; a pressure member to form a fixing nip with the fixing member; a heating member having a plurality of heating elements divided in a direction perpendicular to a conveyance direction of a sheet; a heat performance sensor to detect heating performance of each heating element of the heating member, and an controller to control the heating member. The controller controls each heating element independently such that a temperature of a portion of the fixing member corresponding to a blank area becomes lower than the temperature of a portion of the fixing member corresponding to an image area; and controls the temperature to be maintained at each heating element based on the detection result of the heating performance of each heating element detected by the heat performance sensor.

摘要翻译： 固定装置包括可旋转的固定构件，以在接触未定影图像的同时旋转; 压力构件，用于与所述固定构件形成定影辊隙; 加热构件，其具有沿与片材的输送方向垂直的方向分割的多个加热元件; 用于检测加热构件的每个加热元件的加热性能的热性能传感器，以及用于控制加热构件的控制器。 控制器独立地控制每个加热元件，使得对应于空白区域的固定构件的一部分的温度变得低于对应于图像区域的固定构件的一部分的温度; 并且根据由热性能传感器检测到的各加热元件的加热性能的检测结果来控制在各加热元件上保持的温度。

公开(公告)号：US09354567B2

公开(公告)日：2016-05-31

申请号：US13272629

申请日：2011-10-13

申请人： Takumi Waida ,  Ryota Yamashina ,  Yasunori Ishigaya ,  Masahiro Samei

发明人： Takumi Waida ,  Ryota Yamashina ,  Yasunori Ishigaya ,  Masahiro Samei

IPC分类号： G03G15/20

CPC分类号： G03G15/2046

摘要： A fixing device includes a rotatable fuser member a heater, a rotatable pressure member, a thermometer, and a feedback controller. The rotatable fuser member is subjected to heating. The heater heats the fuser member to a heating temperature. The rotatable pressure member is disposed opposite the fuser member. The fuser member and the pressure member are pressed against each other to form a fixing nip therebetween, through which the recording medium is conveyed, so as to fix the toner image in place under heat and pressure. The thermometer is disposed adjacent to the pressure member to detect an operational temperature of the pressure member. The feedback controller is operatively connected with the thermometer to control the heating temperature according to the detected operational temperature, so that the recording medium exhibits a substantially constant post-fixing temperature downstream from the fixing nip regardless of the heat capacity of the recording medium.

摘要翻译： 定影装置包括可旋转的定影器构件，加热器，可旋转压力构件，温度计和反馈控制器。 可旋转的定影器构件经受加热。 加热器将定影器加热至加热温度。 可旋转的压力构件设置成与定影器构件相对。 定影器构件和压力构件彼此挤压以在其间形成定影夹紧，通过该定影夹持物传送记录介质，以便在加热和压力下将调色剂图像固定就位。 温度计设置在与压力部件相邻的位置，以检测压力部件的工作温度。 反馈控制器与温度计可操作地连接，以根据检测到的操作温度来控制加热温度，使得记录介质在定影辊隙的下游表现出基本上恒定的后定影温度，而与记录介质的热容无关。

公开(公告)号：US09122212B2

公开(公告)日：2015-09-01

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。