Recording media smoothness detector and image forming apparatus incorporating same
    15.
    发明授权
    Recording media smoothness detector and image forming apparatus incorporating same 有权
    记录介质平滑度检测器和结合其的图像形成装置

    公开(公告)号:US09557697B2

    公开(公告)日:2017-01-31

    申请号:US14643082

    申请日:2015-03-10

    IPC分类号: G01J4/00 G03G15/00

    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。

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    16.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20160223964A1

    公开(公告)日:2016-08-04

    申请号:US15010262

    申请日:2016-01-29

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G15/2064

    摘要: A fixing device includes a nip formation pad to form a fixing nip between a first fixing rotator and a second fixing rotator, through which a recording medium bearing a toner image is conveyed. The nip formation pad includes a first planar face, a second planar face disposed downstream from the first planar face in a recording medium conveyance direction and being parallel to the first planar face, and a joint face bridging the first planar face and the second planar face. The joint face includes a first curved portion adjoining the first planar face and having a first curvature in a first direction in which a circumferential face of the second fixing rotator is curved and a second curved portion adjoining the second planar face and having a second curvature in a second direction opposite the first direction.

    摘要翻译: 定影装置包括压区形成垫,以在第一固定旋转器和第二固定旋转器之间形成定影夹持部,通过该固定旋转器传送承载调色剂图像的记录介质。 压区形成垫包括第一平面,第二平面,其在记录介质传送方向上设置在第一平面的下游并且平行于第一平面;以及接合面,桥接第一平面和第二平面 。 接合面包括与第一平面相邻的第一弯曲部分,并且具有第一方向的第一曲率,其中第二定影旋转体的周面弯曲,第二弯曲部分邻接第二平面并且具有第二曲率 与第一方向相反的第二方向。

    Fixing device and image forming apparatus

    公开(公告)号:US09804546B2

    公开(公告)日:2017-10-31

    申请号:US15202859

    申请日:2016-07-06

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2053 G03G15/2042

    摘要: A fixing device includes a primary heat generator and a secondary heat generator to heat an endless belt and a temperature detector, disposed opposite the secondary heat generator, to detect a temperature of the endless belt. The secondary heat generator includes an inboard edge and an outboard edge disposed outboard from the inboard edge in an axial direction of the endless belt. The secondary heat generator has an inboard length defined between a center of a detection span of the temperature detector and the inboard edge in the axial direction of the endless belt. The secondary heat generator further has an outboard length defined between the center of the detection span of the temperature detector and the outboard edge in the axial direction of the endless belt. The secondary heat generator defines a ratio of the outboard length to the inboard length that is greater than 7/3.

    FIXING DEVICE AND IMAGE FORMING APPARATUS
    18.
    发明申请
    FIXING DEVICE AND IMAGE FORMING APPARATUS 有权
    固定装置和图像形成装置

    公开(公告)号:US20160154350A1

    公开(公告)日:2016-06-02

    申请号:US14952522

    申请日:2015-11-25

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2057

    摘要: A fixing device includes a nip formation pad pressing against a pressure rotator via a fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator. The nip formation pad includes a base and a first thermal conductor sandwiched between the base and the fixing rotator at the fixing nip and having a first thermal conductivity greater than a basic thermal conductivity of the base. A first heater and a second heater are disposed opposite an inner circumferential surface of the fixing rotator to heat the fixing rotator. A rotatable light shield moves to a shield position where the light shield is interposed between the second heater and the fixing rotator to shield the fixing rotator from the second heater. The second heater is disposed at a location where the light shield screens the second heater more readily than the first heater.

    摘要翻译: 定影装置包括通过固定旋转器压靠压力旋转器的压区形成垫,以在定影旋转器和压力旋转器之间形成定影辊隙。 压区形成垫包括基座和夹在基座和固定旋转体之间的定影夹持处的第一热导体,并​​具有大于基底的基本热导率的第一导热系数。 第一加热器和第二加热器相对于固定旋转器的内圆周表面设置以加热定影旋转器。 可旋转的遮光罩移动到屏蔽位置,在屏蔽位置处,第二加热器和固定旋转器之间插入防护罩,以将固定旋转体与第二加热器隔离。 第二加热器设置在光屏蔽比第一加热器更容易屏蔽第二加热器的位置。

    Image forming apparatus having a smoothness detector
    19.
    发明授权
    Image forming apparatus having a smoothness detector 有权
    具有平滑度检测器的图像形成装置

    公开(公告)号:US09250592B2

    公开(公告)日:2016-02-02

    申请号:US14592278

    申请日:2015-01-08

    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。