Image forming apparatus and control method of image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorJun Miyajima
Life of this patent
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Abstract
In a case where a type of a feeding standby sheet on a storage unit and a type of a refeeding standby sheet on a reconveyance path are the same, an image forming unit forms an image on one side of a feeding standby sheet on the storage unit, and in a case where a type of a feeding standby sheet on the storage unit and a type of a refeeding standby sheet on the reconveyance path are not the same, the image forming unit forms an image on another side of a refeeding standby sheet on the reconveyance path.
Claims23
An image forming apparatus comprising:
- a storage unit configured to store a sheet;
- an image forming unit configured to form an image onto the sheet;
- a reconveyance path for reconveying a sheet on which an image is formed by the image forming unit on one side, to the image forming unit to form an image on another side of the sheet on which the image is formed on the one side;
- a detection unit that is provided on a conveyance path between the storage unit and the image forming unit, and configured to detect a type of a sheet conveyed from the storage unit;
- and
- a control unit configured to cause the image forming unit to form an image on one side of a first sheet on the storage unit, then cause the image forming unit to form an image on one side of a second sheet on the storage unit, and then cause the image forming unit to form an image on another side of the first sheet on the reconveyance path,
- wherein, in a case where a type of a third sheet on the storage unit and a type of the second sheet on the reconveyance path are the same, after the control unit causes the image forming unit to form an image on another side of the first sheet, the control unit causes the image forming unit to form an image on one side of the third sheet on the storage unit, and then causes the image forming unit to form an image on another side of the second sheet on the reconveyance path, and
- wherein, in a case where a type of the third sheet on the storage unit and a type of the second sheet on the reconveyance path are not the same, after the control unit causes the image forming unit to form an image on another side of the first sheet, the control unit causes the image forming unit to form an image on another side of the second sheet on the reconveyance path, and then causes the image forming unit to form an image on one side of the third sheet on the storage unit.
An image forming apparatus comprising:
- a storage unit configured to store a sheet;
- an image forming unit configured to form an image onto the sheet;
- a reconveyance path for reconveying a sheet on which an image is formed by the image forming unit on one side, to the image forming unit to form an image on another side of the sheet on which the image is formed on the one side;
- a detection unit that is provided on a conveyance path between the storage unit and the image forming unit, and configured to detect a type of a sheet conveyed from the storage unit;
- and
- a control unit configured to, in a case where a type of a feeding standby sheet on the storage unit and a type of a refeeding standby sheet on the reconveyance path are the same, cause the image forming unit to form an image on one side of a feeding standby sheet on the storage unit, and in a case where a type of a feeding standby sheet on the storage unit and a type of a refeeding standby sheet on the reconveyance path are not the same, cause the image forming unit to form an image on another side of a refeeding standby sheet on the reconveyance path.
A control method of an image forming apparatus including a storage unit configured to store a sheet, an image forming unit configured to form an image onto the sheet, a reconveyance path for reconveying a sheet on which an image is formed by the image forming unit on one side, to the image forming unit to form an image on another side of the sheet on which the image is formed on the one side, and a detection unit that is provided on a conveyance path between the storage unit and the image forming unit, and configured to detect a type of a sheet conveyed from the storage unit, the control method comprising:
- first formation of causing the image forming unit to form an image on one side of a first sheet on the storage unit;
- second formation of causing the image forming unit to form an image on one side of a second sheet on the storage unit after the first formation;
- third formation of causing the image forming unit to form an image on another side of the first sheet on the reconveyance path after the second formation;
- fourth formation of, in a case where a type of a third sheet on the storage unit and a type of the second sheet on the reconveyance path are the same, causing the image forming unit to form an image on one side of the third sheet on the storage unit after the third formation, and then causing the image forming unit to form an image on another side of the second sheet on the reconveyance path;
- and
- fifth formation of, in a case where a type of the third sheet on the storage unit and a type of the second sheet on the reconveyance path are not the same, causing the image forming unit to form an image on another side of the second sheet on the reconveyance path after the third formation, and then causing the image forming unit to form an image on one side of the third sheet on the storage unit.
A control method of an image forming apparatus including a storage unit configured to store a sheet, an image forming unit configured to form an image onto the sheet, a reconveyance path for reconveying a sheet on which an image is formed by the image forming unit on one side, to the image forming unit to form an image on another side of the sheet on which the image is formed on the one side, and a detection unit that is provided on a conveyance path between the storage unit and the image forming unit, and configured to detect a type of a sheet conveyed from the storage unit;
- the control method comprising:
- first formation of, in a case where a type of a feeding standby sheet on the storage unit and a type of a refeeding standby sheet on the reconveyance path are the same, causing the image forming unit to form an image on one side of a feeding standby sheet on the storage unit;
- and
- second formation of, in a case where a type of a feeding standby sheet on the storage unit and a type of a refeeding standby sheet on the reconveyance path are not the same, causing the image forming unit to form an image on another side of a refeeding standby sheet on the reconveyance path.
Dependencies are inferred from the claim text.