S162021 カット紙搬送系における紙しわ発生過程のモデル化([S16202]柔軟媒体ハンドリングと画像形成システム(2))

概要

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Defects caused by sheet-feeding instability have been major obstacles in printer development due to the difficulty of the analysis imposed by enormous affectors. To tackle the problem, we analyze the paper-wrinkle generation process in the fuser unit and develop a prior evaluation methodology for it. Based on the observation of the process, a convenient geometry model of the wrinkle is constructed and the relationship between the wrinkle restrictions and controlling factors is formulated by incorporating a snapping model of the fuser nip into the geometry model. Finally "wave slope angle" is derived as the substitutional characteristics of the process. To evaluate the process quantitatively, an apparatus for measuring the feeding velocity deviation and visualizing deformed papers' shape is developed. Validation results show that the margin of the process can be evaluated by using the proposed substitutional characteristics.
2011-09-11