Sheet feeding apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHiroki Tokunaga, Misaki Shiozawa
Life of this patent
Estimating the term…
Abstract
A sheet feeding apparatus includes a support portion; a feed unit; an air blowing unit including an air blowing portion, a first air outlet, and a second air outlet; and a control unit, wherein the first air outlet is disposed to blow the air in a case where the sheet is a first sheet or a second sheet shorter than the first sheet, wherein the second air outlet is disposed to blow the air in a case where the sheet is the first sheet, and wherein in a case where the sheet is the first sheet, the control unit controls the amount of fan airflow to a first airflow, whereas in a case where the sheet is the second sheet, the control unit controls the amount of the fan airflow to a second airflow larger than the first airflow.
Claims12
A sheet feeding apparatus comprising:
- a support portion configured to support a sheet;
- a feed unit configured to feed the sheet supported by the support portion;
- an air blowing unit including an air blowing portion configured to blow air, a first air outlet configured to blow the air blown from the air blowing portion in a width direction to the sheet supported by the support portion, and a second air outlet disposed upstream of the first air outlet in a feed direction and configured to blow the air blown from the air blowing portion in the width direction to the sheet supported by the support portion;
- and
- a control unit configured to control an amount of fan airflow from the air blowing portion in executing air blowing by the air blowing unit,
- wherein the first air outlet is disposed so as to face the sheet to blow the air to the sheet in a case where the sheet supported by the support portion is a first sheet and a second sheet shorter than the first sheet in the feed direction,
- wherein the second air outlet is disposed so as to face the sheet to blow the air to the sheet in a case where the sheet supported by the support portion is the first sheet and is disposed so as not to face the sheet in a case where the sheet supported by the support portion is the second sheet, and
- wherein in a case where the sheet supported by the support portion is the first sheet, the control unit controls the amount of fan airflow from the air blowing portion to a first airflow in executing air blowing by the air blowing unit, whereas in a case where the sheet supported by the support portion is the second sheet, the control unit controls the amount of the fan airflow from the air blowing portion to a second airflow larger than the first airflow in executing air blowing by the air blowing unit.
A sheet feeding apparatus comprising:
- a support portion configured to support a sheet;
- a feed unit configured to feed the sheet supported by the support portion;
- an air blowing unit including an air blowing portion configured to blow air, a first air outlet configured to blow the air blown from the air blowing portion in a width direction to the sheet supported by the support portion, and a second air outlet disposed upstream of the first air outlet in a feed direction and configured to blow the air blown from the air blowing portion in the width direction to the sheet supported by the support portion;
- and
- a control unit configured to control revolutions per minute of the air blowing portion in executing air blowing by the air blowing unit,
- wherein the first air outlet is disposed so as to face the sheet to blow the air to the sheet in a case where the sheet supported by the support portion is a first sheet and a second sheet shorter than the first sheet in the feed direction,
- wherein the second air outlet is disposed so as to face the sheet to blow the air to the sheet in a case where the sheet supported by the support portion is the first sheet and is disposed so as not to face the sheet in a case where the sheet supported by the support portion is the second sheet, and
- wherein in a case where the sheet supported by the support portion is the first sheet, the control unit controls the revolutions per minute of the air blowing portion to a first revolutions-per-minute value in executing air blowing by the air blowing unit, whereas in a case where the sheet supported by the support portion is the second sheet, the control unit controls the revolutions per minute of the air blowing portion to a second revolutions-per-minute value larger than the first revolutions-per-minute value.
Dependencies are inferred from the claim text.