Patent ID: 7156387
Filing Date: 2007-01-02
Classification: B65H

Abstract:
1. A sheet feeding apparatus, comprising: a sheet feeding device configured to pick up sheets from stacked sheets and to feed the sheets one by one; a drive device configured to drive the sheet feeding device; a first detecting device configured to detect a sheet fed by the sheet feeding device to a first detection position located downstream of the sheet feeding device in a sheet feeding direction; a second detecting device configured to detect the sheet fed by the sheet feeding device to a second detection position located downstream of the first detecting device in the sheet feeding direction; and a control device configured to control sheet feeding while setting a drive amount of the drive device, wherein the control device calculates a first drive amount of the drive device during a first interval from when the first detecting device detects the sheet to when the second detecting device detects the sheet based on information detected by the first and second detecting devices, wherein the control device determines if the sheet slips in the first interval based on the calculated first drive amount of the drive device, and sets a second drive amount of the drive device after the second detecting device detects the sheet during a second interval from when the second detecting device detects the sheet to when the drive device is stopped based on the calculated first drive amount; wherein the control device determines if the sheet slipped based on a lapse of time from when the drive device is driven to when the first detecting device detects the sheet.