SHEET FEEDING DEVICE, CONTROL METHOD FOR SHEET FEEDING DEVICE, AND PROGRAM

To make it difficult to cause jamming at the time of sheet feeding even when the sheet to be fed is thin paper with low rigidity.SOLUTION: A control unit 900 of a sheet conveyance device 200, when feeding multiple sheets continuously in the thin paper mode, moves a pickup roller 4 to a position to b...

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Bibliographic Details
Main Authors TANIIKE YOSHIHIRO, SAKAI TORU, KOSUDA SHIGERU
Format Patent
LanguageEnglish
Japanese
Published 18.07.2019
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Summary:To make it difficult to cause jamming at the time of sheet feeding even when the sheet to be fed is thin paper with low rigidity.SOLUTION: A control unit 900 of a sheet conveyance device 200, when feeding multiple sheets continuously in the thin paper mode, moves a pickup roller 4 to a position to be allowed to abut on the sheets stacked on a sheet stacking table 1 (S104) if a leading edge of the next sheet is not detected (in the case of Yes in S103) even if a TS passes after a pre-registration sensor 32 detects a trailing edge of the previously fed sheet, after the TD has elapsed, the pickup roller 4 is rotated in the take-in direction (S105), and after the pre-registration sensor 32 detects the leading edge of the sheet (in the case of Yes in S107), the pickup roller 4 is retracted to the position where it does not abut on the sheet (S108, S109).SELECTED DRAWING: Figure 3 【課題】給紙するシートが腰の弱い薄紙等であっても、給紙の際のジャムを生じ難くすること。【解決手段】シート搬送装置200の制御部900は、薄紙モードにおいて、複数枚のシートを連続給送する場合、レジスト前センサ32が先に給送されたシートの後端を検知した後にTSを経過しても次のシートの先端を検知しない場合(S103でYesの場合)には、ピックアップローラ4をシート積載台1上に積載されたシートに当接させる位置に移動させ(S104)、TD経過後にピックアップローラ4を取込方向に回転させ(S105)、レジスト前センサ32がシートの先端を検知した後(S107でYesの場合)、ピックアップローラ4をシートに当接させない位置に退避させる(S108,S109)。【選択図】図3
Bibliography:Application Number: JP20180074167