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US07753359B2 Sheet conveyance apparatus and image forming apparatus 有权
片材输送装置和图像形成装置

Sheet conveyance apparatus and image forming apparatus
Abstract:
A sheet conveyance apparatus having: a conveyance roller, wherein a surface roughness Ra of a surface layer remains in a range from 8 μm to 30 μm, at a stage where a total length of sheets conveyed reaches at 42,000 m.
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