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US 12,537,902 B2Granted
Image reading device and image reading method
AssigneeSeiko Epson Corporation
InventorKohei Tamai
Life of this patent
Estimating the term…
Abstract
An image reading device includes a con driven by a motor, determines whether or not a second document subsequent to a first document is placed in a placement unit after start of driving of the motor and after the first document reaches a reading end position where reading by a reading unit ends, and when the second document is present, stops driving of the motor if a stop instruction for sopping the document at a specific position is received, and continues driving of the motor if the stop instruction is not received, and when the second document is absent, stops driving of the motor after the first document is discharged to a downstream of the conveyance roller.
Claims11
An image reading device comprising:
- a motor;
- a placement unit on which a document is mounted;
- a feed roller that receives power from the motor to rotate to convey the document placed at the placement unit in a predetermined conveying direction;
- a first conveyance roller that is provided downstream of the feed roller in the conveying direction and receives power from the motor to rotate to convey the document in the conveying direction;
- a second conveyance roller that is provided downstream of the first conveyance roller and receives power from the motor to rotate to convey the document in the conveying direction;
- a reading unit that is provided between the first conveyance roller and the second conveyance roller in the conveying direction and reads the conveyed document;
- a first detection unit that detects the document at the placement unit;
- and
- a control unit;
- wherein
- the control unit determines, after start of driving of the motor and after a first document which is the document reaches a predetermined reading end position where reading by the reading unit ends, whether a second document that is a document subsequent to the first document is detected by the first detection unit;
- stops driving of the motor when a stop instruction for stopping the document at a specific position is received, and continues driving of the motor when the stop instruction is not received, in a case where the second document is detected by the first detection unit;
- and
- stops driving of the motor after the first document is discharged downstream of the second conveyance roller, in a case where the second document is not detected by the first detection unit.
11 more elements
An image reading device comprising:
- a supporting portion that is placed at an installation surface and supports a main body;
- and
- the main body configured to switch a posture to a first posture or a second posture while being supported by the supporting portion;
- wherein the main body includes:
- a motor;
- a placement unit on which a document is mounted;
- a feed roller that receives power from the motor to rotate to convey the document placed at the placement unit in a predetermined conveying direction;
- a first conveyance roller that is provided downstream of the feed roller in the conveying direction and receives power from the motor to rotate to convey the document in the conveying direction;
- a second conveyance roller that is provided downstream of the first conveyance roller and receives power from the motor to rotate to convey the document in the conveying direction;
- a reading unit that is provided between the first conveyance roller and the second conveyance roller in the conveying direction and reads the conveyed document;
- a posture detection unit that detects whether the posture is the first posture or the second posture;
- a first discharge port that is provided downstream of the second conveyance roller and discharges the document that passed a curved path;
- a second discharge port that is provided downstream of the second conveyance roller and discharges the document that does not pass the curved path;
- and
- a control unit;
- wherein
- the main body is configured to discharge the document from the first discharge port and not discharge the document from the second discharge port in the first posture, and
- configured to discharge the document from the second discharge port and not discharge the document from the first discharge port in the second posture;
- and
- when receiving an instruction to cancel reading after start of driving of the motor, the control unit
- stops driving of the motor when the first posture is detected by the posture detection unit, and
- continues driving of the motor, and stops driving of the motor after the document is discharged from the second discharge port when the second posture is detected by the posture detection unit.
19 more elements
An image reading method executed by an image reading device,
- the image reading device including,
- a motor,
- a placement unit on which a document is mounted,
- a feed roller that receives power from the motor to rotate to convey the document placed at the placement unit in a predetermined conveying direction,
- a first conveyance roller that is provided downstream of the feed roller in the conveying direction and receives power from the motor to rotate to convey the document in the conveying direction,
- a second conveyance roller that is provided downstream of the first conveyance roller and receives power from the motor to rotate to convey the document in the conveying direction, and
- a reading unit that is provided between the first conveyance roller and the second conveyance roller in the conveying direction and reads the conveyed document, the image reading method comprising:
- a determination step for determining, after a first document that is the document reaches a predetermined reading end position at which reading by the reading unit ends after the start of driving of the motor, presence or absence of a second document that is a document subsequent to the first document on the placement unit;
- and
- a stop control step for, in a case where it is determined that the second document is present, stopping driving of the motor when a stop instruction for stopping the document at a specific position is received, and continuing the driving of the motor when the stop instruction is not received, and when it is determined that the second document is absent, discharging the first document downstream of the second conveyance roller, and then stopping driving of the motor.
7 more elements
An image reading method executed by an image reading device, the image reading device including,
- a supporting portion that is placed at an installation surface and supports a main body, and
- the main body configured to switch a posture to a first posture or a second posture while being supported by the supporting portion;
- the main body including,
- a motor;
- a placement unit on which a document is mounted;
- a feed roller that receives power from the motor to rotate to convey the document placed at the placement unit in a predetermined conveying direction;
- a first conveyance roller that is provided downstream of the feed roller in the conveying direction and receives power from the motor to rotate to convey the document in the conveying direction;
- a second conveyance roller that is provided downstream of the first conveyance roller and receives power from the motor to rotate to convey the document in the conveying direction;
- a reading unit that is provided between the first conveyance roller and the second conveyance roller in the conveying direction and reads the conveyed document;
- a first discharge port that is provided downstream of the second conveyance roller and discharges the document that passed a curved path;
- a second discharge port that is provided downstream of the second conveyance roller and discharges the document that does not pass the curved path;
- and
- the main body configured to discharge the document from the first discharge port and not discharge the document from the second discharge port in the first posture, and
- configured to discharge the document from the second discharge port and not discharge the document from the first discharge port in the second posture;
- the image reading method comprising:
- a determination step for determining whether the posture is the first posture or the second posture when receiving an instruction to cancel reading after start of driving of the motor;
- and
- a stop control step for stopping driving of the motor when the posture is the first posture, and continuing driving of the motor, and stopping driving of the motor after the document is discharged from the second discharge port if the posture is the second posture.
15 more elements
Dependencies are inferred from the claim text.