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    • 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。