SHEET FEEDING APPARATUS AND IMAGE FORMING APPARATUS
First Claim
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1. A sheet feeding apparatus comprising:
- a sheet feeding device configured to feed a sheet;
a separating member provided movably between a contact position where the separating member is in contact with the sheet feeding device and a separated position where the separating member is separated from the sheet feeding device, and configured to separate sheets;
a first moving device configured to move the separating member between the contact position and the separated position;
a driving device configured to generate a driving force; and
a clutch unit configured to change a transmission state of the driving force from the driving device to the sheet feeding device between a first state where the driving force is transmitted and a second state where the driving force is not transmitted,wherein, after the first moving device moves the separating member from the contact position to the separated position, the clutch unit changes the transmission state of the driving force from the driving device to the sheet feeding device to the second state.
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Abstract
In a sheet feeding apparatus without increase in size and without fluctuation in sheet feeding interval, a clutch is brought into a disconnected state after a separation roller separates from a feed roller.
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Citations
15 Claims
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1. A sheet feeding apparatus comprising:
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a sheet feeding device configured to feed a sheet; a separating member provided movably between a contact position where the separating member is in contact with the sheet feeding device and a separated position where the separating member is separated from the sheet feeding device, and configured to separate sheets; a first moving device configured to move the separating member between the contact position and the separated position; a driving device configured to generate a driving force; and a clutch unit configured to change a transmission state of the driving force from the driving device to the sheet feeding device between a first state where the driving force is transmitted and a second state where the driving force is not transmitted, wherein, after the first moving device moves the separating member from the contact position to the separated position, the clutch unit changes the transmission state of the driving force from the driving device to the sheet feeding device to the second state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An image forming apparatus comprising:
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a sheet feeding device configured to feed a sheet; an image forming unit configured to form an image on the sheet fed by the sheet feeding device; a separating member movably provided between a contact position where the separating member is in contact with the sheet feeding device and a separated position where the separating member is separated from the sheet feeding device, and configured to separate sheets; a first moving device configured to move the separating member between the contact position and the separated position; a driving device configured to generate a driving force; and a clutch unit configured to change a transmission state of the driving force from the driving device to the sheet feeding device between a first state where the driving force is transmitted and a second state where the driving force is not transmitted, wherein, after the first moving device moves the separating member from the contact position to the separated position, the clutch unit changes the transmission state of the driving force from the driving device to the sheet feeding device to the second state.
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Specification