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Sheet feeder, image forming apparatus incorporating the sheet feeder, and image forming system incorporating the sheet feeder
Sheet feeder, image forming apparatus incorporating the sheet feeder, and image forming system incorporating the sheet feeder
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机译:片材进给器,结合有片材进给器的图像形成设备以及结合有片材进给器的图像形成系统
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摘要
A sheet feeder, which is included in an image forming apparatus and an image forming system, includes a sheet loader on which a sheet bundle is loaded, an air blower to blow air to the sheet bundle loaded on the sheet loader and float upper sheets of the sheet bundle, a loader elevation device to lift and lower the sheet loader, a reflective optical detector including a first reflective optical detector to detect the upper sheets floated by the air blower and a second reflective optical detector to detect multiple floating sheets located below the floating sheets detected by the first reflective optical detector, and a controller configured to control the loader elevation device to perform a lifting operation of the sheet loader based on a combination of an output value of the first reflective optical detector and an output value of the second reflective optical detector.
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