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US 2017/0283200 A1Published application
Sheet feeding apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorHiroyuki Nakagawa
Life of this patent
Estimating the term…
Abstract
A sheet feeding apparatus includes an apparatus body, an opening/closing member openable/closable with respect to the apparatus body and including a support portion supporting a sheet in a condition in which the opening/closing member is opened. The sheet supported by the support portion is fed by a feed portion. The opening/closing member is provided with a detection portion configured to detect the sheet on the support portion. The detection portion is disposed at a position where the detection wave emitted from the detection portion is not detected in a condition in which the opening/closing member is closed.
Claims23
A sheet feeding apparatus comprising:
- an apparatus body;
- an opening/closing member openable and closable with respect to the apparatus body and comprising a support portion configured to support a sheet in a condition in which the opening/closing member is opened;
- a feed portion configured to feed the sheet supported on the support portion;
- and
- a detection portion disposed in the opening/closing member and configured to emit detection wave in a direction intersecting with a support surface of the support portion and detect the detection wave reflected by the sheet on the support surface, the detection portion being disposed at a position where the detection wave emitted from the detection portion is not detected by the detection portion in a condition in which the opening/closing member is closed.
2 more elements
A sheet feeding apparatus comprising:
- an apparatus body;
- an opening/closing member openable and closable with respect to the apparatus body and comprising a support portion configured to support a sheet in a condition in which the opening/closing member is opened;
- a feed portion configured to feed the sheet supported on the support portion;
- a conveyance guide disposed in the apparatus body and configured to guide the sheet fed by the feed portion, the conveyance guide comprising a first guide portion configured to be in sliding contact with a first surface of the sheet conveyed by the feed portion and a second guide portion configured to be in sliding contact with a second surface opposite to the first surface of the sheet;
- and
- a detection portion disposed in the opening/closing member and configured to emit detection wave in a direction intersecting with a support surface of the support portion and detect the detection wave reflected by the sheet on the support surface, the detection portion being disposed at a position overlapping with an opening of a sheet conveyance path defined between the first and second guide portions when viewed from a direction in which the detection wave is emitted from the detection portion in a condition in which the opening/closing member is closed.
3 more elements
A sheet feeding apparatus comprising:
- an apparatus body;
- an opening/closing member openable and closable with respect to the apparatus body and comprising a support portion configured to support a sheet in a condition in which the opening/closing member is opened;
- a feed portion configured to feed the sheet supported on the support portion;
- a conveyance guide disposed in the apparatus body and configured to guide the sheet fed by the feed portion;
- and
- a detection portion disposed in the opening/closing member and configured to emit detection wave in a direction intersecting with a support surface of the support portion and detect the detection wave reflected by the sheet on the support surface, the detection portion being disposed at a position where the detection wave is emitted by the detection portion in a direction passing through inside of a sheet conveyance path defined by the conveyance guide in a condition in which the opening/closing member is closed.
3 more elements
A sheet feeding apparatus comprising:
- an apparatus body;
- an opening/closing member openable and closable with respect to the apparatus body and comprising a support portion configured to support a sheet in a condition in which the opening/closing member is opened;
- a feed portion configured to feed the sheet supported by the support portion;
- a detection portion disposed in the opening/closing member and configured to emit detection wave in a direction intersecting with a support surface of the support portion and detect the detection wave reflected by the sheet on the support surface;
- and
- a regulating portion which is disposed in the apparatus body and against which the sheet supported on the support portion abuts so that a sheet position in a sheet feeding direction of the feed portion is regulated in a condition in which the opening/closing member is opened, the regulating portion comprising a transmissive portion through which the detection wave emitted from the detection portion passes,
- wherein the detection portion is disposed at a position where the detection wave is emitted in a direction passing through the transmissive portion in a condition in which the opening/closing member is closed.
4 more elements
A sheet feeding apparatus comprising:
- an apparatus body;
- an opening/closing member openable and closable with respect to the apparatus body and comprising a support portion configured to support a sheet in a condition in which the opening/closing member is opened;
- a feed portion configured to feed the sheet supported on the support portion;
- a detection portion disposed in the opening/closing member and configured to emit detection wave in a direction intersecting with a support surface of the support portion and detect the detection wave reflected by the sheet on the support surface;
- and
- a low reflectance portion disposed in the apparatus body and facing the detection portion in a condition in which the opening/closing member is closed, the low reflectance portion having reflectance to the detection wave from the detecting portion lower than that of surrounding portions of the low reflectance portion.
3 more elements
Dependencies are inferred from the claim text.