Image scanning apparatus and method
AssigneeSamsung Electronics Co., Ltd.
InventorsJae-in Lee, Ki-hun Kim
Life of this patent
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Abstract
An image scanning apparatus and method accurately sense a leading edge and a tail edge of a scanned document and determine the leading margin and the tail margin of the document. The image scanning method includes feeding the document to a scanning position through a feeding path according to a command to scan the document; operating a sensor unit disposed on the feeding path according to a location of the document; scanning the document in response to operation of the sensor unit; sensing a leading edge of each document using a document sensing pattern disposed oppositely to the scanning unit; and scanning the document when the leading edge of the document is sensed.
Claims19
An image scanning method for an image scanning apparatus including a scanning unit to scan a document, the method comprising:
- feeding the document to a scanning position through a feeding path according to a command to scan the document;
- operating a sensor unit disposed on the feeding path according to a location of the document;
- determining a point of time for the scanning unit to start the scanning of the document according to a size of the document;
- starting scanning of the document via the scanning unit in response to the operation of the sensor unit;
- sensing a leading edge of the document using a document sensing pattern disposed oppositely to the scanning unit;
- and
- scanning the document when the leading edge of the document is sensed.
An image scanning method for an image scanning apparatus including a scanning unit to scan a document, the method comprising:
- feeding the document to a scanning position through a feeding path according to a command to scan the document;
- operating a sensor unit disposed on the feeding path according to a location of the document;
- starting scanning of the document via the scanning unit in response to the operation of the sensor unit;
- sensing a leading edge of the document using a document sensing pattern disposed oppositely to the scanning unit;
- scanning the document when the leading edge of the document is sensed;
- and
- stopping the scanning of the document when a tail edge of the document passes between the document sensing pattern and the scanning unit;
- wherein the scanning of the document starts when the leading edge of the document passes between the document sensing pattern and the scanning unit;
- and
- wherein the stopping of the scanning of the document occurs when the scanning unit scans the document sensing pattern after the document passes between the document sensing pattern and the scanning unit.
An image scanning apparatus to scan a document, the image scanning apparatus comprising:
- a document feeder unit to feed the document to a scanning position through a feeding path, the document feeder unit including a document sensing pattern;
- a scanning unit to scan the document, the scanning unit disposed opposite of the feeding path from the document sensing pattern;
- and
- a control unit to determine whether the document is being scanned according to a scanning result of the document sensing pattern, and to control the scanning unit to scan the document,
- wherein the control unit controls the scanning unit to start scanning the document at a different point of time according to a size of the document fed.
An image scanning method for an image scanning apparatus including a scanning unit to scan a document, the method comprising:
- determining a point of time for the scanning unit to start the scanning of the document according to a size of the document;
- sensing a document sensing pattern disposed opposite a scanning unit at a scanning position along a feeding path;
- passing the document through the scanning position to block the sensing of the document sensing pattern;
- scanning the document when the document sensing pattern is blocked by the document passing through the scanning position;
- and
- storing the scanned document in a storage unit.
An image scanning method for an image scanning apparatus including a scanning unit to scan a document, the method comprising:
- sensing a document sensing pattern disposed opposite a scanning unit at a scanning position along a feeding path;
- passing the document through the scanning position to block the sensing of the document sensing pattern;
- scanning the document when the document sensing pattern is blocked by the document passing through the scanning position;
- and
- storing the scanned document in a storage unit
- stopping the scanning of the document when a tail edge of the document passes between the document sensing pattern and the scanning unit;
- wherein the scanning of the document starts when the leading edge of the document passes between the document sensing pattern and the scanning unit;
- and
- wherein the stopping of the scanning of the document occurs when the scanning unit scans the document sensing pattern after the document passes between the document sensing pattern and the scanning unit.
Dependencies are inferred from the claim text.