PAPER SHEET TRANSPORT APPARATUS AND IMAGE FORMING APPARATUS
To provide a paper sheet transport apparatus capable of favorably eliminating static electricity of a paper sheet even when peeling electrification occurs in a roller pair performing a curl correction process and a static elimination process, and to provide a technique related to the paper sheet tra...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a paper sheet transport apparatus capable of favorably eliminating static electricity of a paper sheet even when peeling electrification occurs in a roller pair performing a curl correction process and a static elimination process, and to provide a technique related to the paper sheet transport apparatus.SOLUTION: The paper sheet transport apparatus comprises a roller pair including a rigid roller and an elastic roller, and static elimination control means. The roller pair performs both a curl correction process of bringing a paper sheet after passing through a fixing device into pressure-contact with the rigid roller and the elastic roller to correct the curl of the paper sheet, and a static elimination process of eliminating static electricity of the paper sheet by applying an electric current or voltage to the elastic roller which is electrically conductive or semi-conductive. The static elimination control means determines an application amount in the static elimination process based on: a basic application amount determined according to the basis weight of the paper sheet; and a correction amount determined according to a charged amount of a peeling electrification caused by the curl correction process.SELECTED DRAWING: Figure 7
【課題】カール矯正処理と除電処理とを実行する一のローラ対において剥離帯電が発生する場合であっても用紙を良好に除電することが可能な用紙搬送装置、およびそれに関連する技術を提供する。【解決手段】用紙搬送装置は、剛性ローラと弾性ローラとを有するローラ対と、除電制御手段とを備える。当該ローラ対は、定着器を通過した後の用紙を剛性ローラと弾性ローラとで圧接して当該用紙のカールを矯正するカール矯正処理と、導電性あるいは半導電性の弾性ローラに電流あるいは電圧を印加することによって用紙を除電する除電処理との双方を実行する。除電制御手段は、当該用紙の坪量に応じて決定された基本印加量と、カール矯正処理に起因する剥離帯電の帯電量に応じて決定された補正量とに基づいて、除電処理における印加量を決定する。【選択図】図7 |
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