Abstract: In a reading device, a controller performs: detecting occurrence of a double-feed; executing a double-feed process; detecting a state of double-fed sheets; executing a first process when a command is inputted; and executing a second process when the command is not inputted. The double feed process includes: halting conveyance of an original document; and making notification of the occurrence of the double-feed. The first process performs, in accordance with the command, one of: resuming the conveyance of the original document; and quitting the conveyance of the original document. The second process performs, in accordance with a determination result, one of: resuming the conveyance of the original document; and continuing the halting and the making. The resuming is performed when the determination result indicates that the conveyance of the original document is possible. The continuing is performed when the determination result indicates that the conveyance of the original document is impossible.

Abstract: In a reading device, a controller performs: detecting occurrence of a double-feed; executing a double-feed process; detecting a state of double-fed sheets; executing a first process when a command is inputted; and executing a second process when the command is not inputted. The double feed process includes: halting conveyance of an original document; and making notification of the occurrence of the double-feed. The first process performs, in accordance with the command, one of: resuming the conveyance of the original document; and quitting the conveyance of the original document. The second process performs, in accordance with a determination result, one of: resuming the conveyance of the original document; and continuing the halting and the making. The resuming is performed when the determination result indicates that the conveyance of the original document is possible. The continuing is performed when the determination result indicates that the conveyance of the original document is impossible.

Abstract: An image reader wherein a controller executes: a start process of starting a reading operation; a head edge detection process of detecting a document width; a first side edge detection process of detecting a side edge until an occurrence of a first change from a side edge detecting state to a side edge non-detecting state; a calculation process of calculating a continuation distance based on the document width; a second side edge detection process of detecting the side edge until an occurrence of a second change from the non-detecting state to the detecting state; a third side edge detection process of detecting the side edge until an occurrence of the first change; and an end process of ending the reading operation when the second change does not occur in a continuation range in the second detection process or when the first change occurs in the third detection process.

Abstract: An image reader wherein a controller executes: a start process of starting a reading operation; a head edge detection process of detecting a document width; a first side edge detection process of detecting a side edge until an occurrence of a first change from a side edge detecting state to a side edge non-detecting state; a calculation process of calculating a continuation distance based on the document width; a second side edge detection process of detecting the side edge until an occurrence of a second change from the non-detecting state to the detecting state; a third side edge detection process of detecting the side edge until an occurrence of the first change; and an end process of ending the reading operation when the second change does not occur in a continuation range in the second detection process or when the first change occurs in the third detection process.

Abstract: A scanner is configured to scan an original sheet to generate image data, an image on the original sheet being subject to scanning, obtaining a first side of the original sheet area within one of a leading end side part and a trailing end side part of the image, the first end side part being a part where two edges having a common end do not exist, an outer side edge in the first end side part being obtained as the first side, obtaining a second side of the original sheet area within a second side part, the second end side part being a part where a pair of edges having a common end exists, one of the pair of edges closer to the first end side part being obtained as the second side, and determining the original sheet area based on the first and the second sides.

Abstract: A scanner is configured to scan an original sheet to generate image data, an image on the original sheet being subject to scanning, obtaining a first side of the original sheet area within one of a leading end side part and a trailing end side part of the image, the first end side part being a part where two edges having a common end do not exist, an outer side edge in the first end side part being obtained as the first side, obtaining a second side of the original sheet area within a second side part, the second end side part being a part where a pair of edges having a common end exists, one of the pair of edges closer to the first end side part being obtained as the second side, and determining the original sheet area based on the first and the second sides.