| 摘要 |
A sheet carrying device includes a pickup roller sending out a sheet to a carrying path one by one from a document mounting tray, a roller first driving motor rotating the pickup roller, a control section controlling the roller first driving motor, and a slip detecting device detecting whether the pickup roller slips in an amount not less than a predetermined amount in carrying the sheet. Detecting that the pickup roller slips, the control section controls the roller first driving motor to perform a slip-settling operation for decreasing a start-up acceleration of the pickup roller from a time when starting to rotate to a time when reaching a predetermined speed. This allows reliably carrying a sheet and suppressing a decrease in a carrying speed of the sheet in order to prevent a decrease in a speed of a process including sheet carrying, even when the pickup roller slips in feeding the sheet from the sheet mounting tray.
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