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ROLLER, ROLLER UNIT, PAPER FEEDER PROVIDED WITH ROLLER OR ROLLER UNIT, AND IMAGE READER
ROLLER, ROLLER UNIT, PAPER FEEDER PROVIDED WITH ROLLER OR ROLLER UNIT, AND IMAGE READER
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机译:辊筒,辊筒单元,带辊筒或辊筒单元的送纸器以及图像读取器
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摘要
A retarding roller (a roller) is formed of a synthetic rubber (an industrial rubber material) such as ethylene propylene diene M-class rubber (EPDM) or polyurethane, or alternatively, silicone. The roller core of the retarding roller is cylindrical. M arc-shaped long holes (where M is an integer greater than or equal to 4) are formed in each of N layers (where N is an integer greater than or equal to 2) from a first layer (an outermost layer) to an Nth layer (an innermost layer) which are circular and concentric to a center axial line. In each layer, long holes are formed such that spokes in adjacent layers (an ith layer and an i+1th layer, where i is an integer from 1 to N−1) do not overlap in the circumferential direction.
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