Sheet feeding apparatus and image forming apparatus
AssigneeCanon Finetech Inc.
InventorYusuke Esaka
Life of this patent
Estimating the term…
Abstract
A sheet feeding apparatus, including: a stacking unit; a feed unit having a contact portion to be brought into contact with a sheet stacked on the stacking unit and a noncontact portion kept out of contact with the sheet, the feed unit being configured to feed the sheet in a contact state in which the contact portion is in contact with the sheet, and then turn into a noncontact state in which the noncontact portion faces the sheet so as to be kept out of contact with the sheet; a conveyance unit arranged downstream of the feed unit; and a drive unit configured to drive the conveyance unit at a first speed in the contact state and to drive the conveyance unit at a second speed higher than the first speed in the noncontact state.
Claims6
A sheet feeding apparatus comprising:
- a stacking unit on which a sheet is to be stacked;
- a feed unit configured to assume a contact state in which the feed unit is in contact with a sheet stacked on the stacking unit and a noncontact state in which the feed unit is out of contact with a sheet stacked on the stacking unit, wherein the feeding unit turns into the noncontact state after the feeding unit feeds a sheet in the contact state;
- a conveyance unit arranged downstream of the feed unit in a sheet feed direction and configured to convey a sheet fed by the feed unit;
- a drive unit configured to drive the feed unit and the conveyance unit;
- and
- a transmission unit configured to transmit a drive force of the drive unit to the conveyance unit so that the conveyance unit conveys a sheet at a first conveying speed when the feed unit is in the contact state, and that the conveyance unit conveys a sheet at a second conveying speed which is higher than the first conveying speed when the feed unit is in the noncontact state.
An image forming apparatus comprising:
- a sheet feeding apparatus;
- and
- an image forming portion configured to form an image on a sheet fed by the sheet feeding apparatus,
- wherein the sheet feeding apparatus comprises:
- (a) a stacking unit on which a sheet is to be stacked;
- (b) a feed unit configured to assume a contact state in which the feed unit is in contact with a sheet stacked on the stacking unit and a noncontact state in which the feed unit is out of contact with a sheet stacked on the stacking unit, wherein the feeding unit turns into the noncontact state after the feeding unit feeds a sheet in the contact state
- (c) a conveyance unit arranged downstream of the feed unit in a sheet feed direction and configured to convey a sheet fed by the feed unit;
- (d) a drive unit configured to drive the feed unit and the conveyance unit;
- and
- (e) a transmission unit configured to transmit a drive force of the drive unit to the conveyance unit so that the conveyance unit conveys a sheet at a first conveying speed when the feed unit is in the contact state, and that the conveyance unit conveys a sheet at a second conveying speed which is higher than the first conveying speed when the feed unit is in the noncontact state.
Dependencies are inferred from the claim text.