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    • 1. 发明申请
    • Image forming apparatus for improving image quality
    • 用于提高图像质量的图像形成装置
    • US20060232759A1
    • 2006-10-19
    • US11406377
    • 2006-04-19
    • Noriaki FukubeSo OhtaTetsuya Ofuchi
    • Noriaki FukubeSo OhtaTetsuya Ofuchi
    • G03B27/00
    • G03G15/6567G03G15/235G03G15/6564
    • An image forming apparatus includes a sheet feed unit having a sheet feed port, an image forming unit, a sheet position detector, a mode selector, and a memory unit. The sheet feed unit feeds a recording sheet. The image forming unit forms an image on the recording sheet. The sheet position detector detects a sheet edge of the recording sheet. The mode selector selects at least one of the position correction mode and non-correction mode for the sheet feed port. An image forming position on the recording sheet is corrected using position information detected by the sheet position detector when the position correction mode is selected, and the image forming position on the recording sheet is not corrected when the non-correction mode is selected. A memory unit may store a plurality of values of light intensity and threshold value corresponding to different types of recording sheets.
    • 图像形成装置包括具有供纸口,成像单元,纸张位置检测器,模式选择器和存储单元的送纸单元。 送纸单元供给记录纸。 图像形成单元在记录纸上形成图像。 片材位置检测器检测记录片材的片材边缘。 模式选择器为供纸口选择位置校正模式和非校正模式中的至少一个。 当选择位置校正模式时,使用由片材位置检测器检测到的位置信息来校正记录片材上的图像形成位置,并且当选择非校正模式时,记录片材上的图像形成位置不被校正。 存储单元可以存储对应于不同类型的记录纸张的多个光强度值和阈值。
    • 3. 发明申请
    • Sheet detector, sheet detector mechanism and image forming apparatus
    • 片材检测器,片材检测器机构和成像设备
    • US20070138416A1
    • 2007-06-21
    • US11642709
    • 2006-12-21
    • So OhtaMasataka ShimoohsakoNoriaki FukubeTetsuya Ohfuchi
    • So OhtaMasataka ShimoohsakoNoriaki FukubeTetsuya Ohfuchi
    • G01N21/86
    • B65H7/14B65H2511/416B65H2511/51B65H2515/60B65H2515/702B65H2553/412B65H2553/416B65H2557/64B65H2220/02B65H2220/04B65H2220/03B65H2220/01
    • A sheet detector, a sheet detector mechanism and an image forming apparatus. An image forming apparatus may include an image forming mechanism, a sheet conveyance mechanism, and a sheet detector. The image forming mechanism may form an image and transfer the image onto the sheet conveyed by the sheet conveyance mechanism. The sheet detector may be arranged upstream from an image transfer region and configured to detect the sheet. The sheet detector may include a light source emitting light, a plurality of photoreceptors, and a controller. The plurality of photoreceptors may be arranged in a line in a main-scanning direction and may include a first photoreceptor group and a second photoreceptor group. The first photoreceptor group may change output voltages when overridden by the side edge of the sheet. The second photoreceptor group may include an opposite end of the plurality of photoreceptors being out of the side edge of the sheet. The controller, which may be part of the sheet detector mechanism, may be configured to adjust a light emission amount of the light source in accordance with characteristics of the sheet.
    • 片材检测器,片材检测器机构和图像形成装置。 图像形成装置可以包括图像形成机构,片材输送机构和片材检测器。 图像形成机构可以形成图像并将图像转印到由片材输送机构输送的片材上。 片材检测器可以布置在图像转印区域的上游并且被配置为检测片材。 片材检测器可以包括发射光的光源,多个光感受器和控制器。 多个感光体可以沿主扫描方向排列成一行,并且可以包括第一感光体组和第二感光体组。 当被片材的侧边缘覆盖时,第一感光体组可以改变输出电压。 第二感光体组可以包括多个感光体的相对端在片材的侧边缘之外。 可以是片材检测器机构的一部分的控制器可以被配置为根据片材的特性调节光源的发光量。
    • 8. 发明授权
    • Paper sheet separating apparatus
    • 纸张分离装置
    • US5564689A
    • 1996-10-15
    • US330729
    • 1994-10-28
    • Noriaki Fukube
    • Noriaki Fukube
    • G03G15/00B65H3/52
    • B65H3/5261B65H2403/70
    • A paper sheet separating apparatus has a feeding roller to feed a paper sheet in a transporting direction and a reversing roller to give a predetermined torque in the opposite direction to the transporting direction so that paper sheets are separated and fed one by one from accommodated paper sheets. The paper sheet separating apparatus includes a reversing roller mounted on a reverse shaft via a torque limiter. The torque limiter includes a clutch body which rotates integrally with the reverse shaft, a hub which is rotatably supported on the shaft and a spring which is disposed between the clutch body and the hub. The hub forms a part of the reversing roller.
    • 纸张分离装置具有用于沿输送方向供给纸张的进给辊和反转辊,以沿与输送方向相反的方向给出预定的扭矩,使得纸张从容纳的纸张一张一张地分离 。 纸张分离装置包括经由扭矩限制器安装在反向轴上的反转辊。 扭矩限制器包括与反转轴一体地旋转的离合器本体,可旋转地支撑在轴上的轮毂和设置在离合器本体和轮毂之间的弹簧。 轮毂形成反转辊的一部分。