Patent application number | Description | Published |
20080224391 | IMAGE SCANNING APPARATUS AND IMAGE SCANNER - In an image scanning apparatus, when documents on a document tray are sequentially transferred, different control steps are performed according to a scanning speed when an upper surface height of the documents is lowered thereby turning off a height detection sensor. In a first control mode, which is not a high speed scanning, the document tray is elevated little by little during an inter-transfer time between each time one document is transferred until the upper surface height reaches a target height that is higher by a predetermined distance since the height detection sensor is turned on. In a second control mode, in which high speed scanning is performed, the document tray is elevated little by little during the inter-transfer time each time the one document is transferred until the upper surface height reaches a height that is higher by a predetermined distance than a height at a time when the height detection sensor is turned off. | 09-18-2008 |
20080224392 | IMAGE SCANNING APPARATUS AND IMAGE SCANNER - In an image scanning apparatus, when documents on a document tray are sequentially transferred, different control steps are performed according to a scanning speed when an upper surface height of the documents is lowered thereby turning off a height detection sensor. In a low scanning speed, the document tray is elevated one time until the upper surface height becomes a target height which is higher by a predetermined distance since a height detection sensor is turned on at an inter-transfer time between completion of document transfer and start of a subsequent document transfer. In an intermediate scanning speed, the document tray is elevated little by little in each transfer of one document at the inter-transfer time until the upper surface height reaches the target height. In a fast scanning speed, the transfer of the document is tentatively interrupted, the document tray is elevated one time until the upper surface height reaches the target height, and the transfer of the document is resumed. | 09-18-2008 |
20080226371 | IMAGE SCANNING APPARATUS AND IMAGE SCANNER - In an image scanning apparatus, documents on a document tray are transferred one by one, and an upper surface height of the documents is lowered to turn off a height detection sensor. Different kinds of control modes are performed according to a document scanning mode. In an image-quality-priority scanning mode, a transfer unit suspends transfer of the document, the document tray is elevated until the upper surface height reaches a target height that is higher by a predetermined distance after the height detection sensor is turned on, and the transfer unit resumes the transfer of the document. In a speed-priority scanning mode, while the transfer of the document is continued by the transfer unit, the document tray is elevated until the document tray reaches the target height. | 09-18-2008 |
20110058231 | Image Scanning Device, Image Scanning Method, Image Display Controlling Device, Image Display Controlling Method, Image Processing System, and Computer Program - An image scanning device accepts an instruction to scan a double-sided document and scans a plurality of double-sided documents with respect to each page to produce image data. Image data is eliminated when a page is determined as being solid colored from the image data produced by the scanning section. Image data other than the eliminated image data is transmitted to the outside. When an instruction to scan a double-sided document is received from the outside and accepted, elimination of image data is prohibited. | 03-10-2011 |
20110058233 | IMAGE SCANNING DEVICE AND DOCUMENT TRANSPORTATION METHOD - An image scanning device includes a scanning specifying unit, a first transportation path, a second transportation path, a path switching unit, and a document detection unit. The scanning specifying unit specifies as a scanning method of a document either a double sided scanning or a single sided scanning. The first transportation path is a transportation path for double sided scanning to scan a first surface and a second surface of the document in order. The second transportation path is a transportation path for single sided scanning, which is shorter than the first transportation path, to scan the second surface of the document. The path switching unit selects either the first transportation path or the second transportation path based on the specified scanning method. The document detection unit detects the document with the first surface scanned and the second surface not scanned when the double sided scanning is interrupted. The path switching unit selects the second transportation path for the transportation path of the first document in the resumed double sided scanning based on a detection result of the document detection unit. | 03-10-2011 |
20110248439 | IMAGE SCANNING DEVICE AND DOCUMENT TRANSPORTING METHOD - An image scanning device includes a scanning specifying unit, at least two document detecting units, a supply timing adjusting unit, and a document supplying unit. The scanning specifying unit specifies one of at least two scanning methods each having a different transportation interval between documents. The document detecting units are at least two in number and arranged to detect a document at different positions on a transportation route. The supply timing adjusting unit is arranged to measure a transportation distance of the document after detection by the document detecting units and to generate a supply signal. The document supplying unit is arranged to supply a document from a paper feed tray based on the supply signal. The supply timing adjusting unit is arranged to generate the supply signal based on a result of detection by the document detecting unit that corresponds to the specified scanning method. | 10-13-2011 |
20120133963 | IMAGE READING DEVICE - An image reader includes a path switching part, located at a branch point that switches between a double-sided path and a single-sided path. The double-sided path defines a conveyance route that passes through a reading position from the branch point to enter a conveyance path that causes a document to make a U-turn, and then again passes through the reading position to be discharged to a paper discharge tray. The single-sided path defines a conveyance route that, without passing through the reading position, merges into the conveyance path from the branch point. Along the double-sided path, document detecting sensors provide detection results so that a collision determination part determines a possibility of a collision between documents, and if such a possibility is determined, the path switching part switches the double-sided path to the single-sided path to prevent the documents from colliding head-on with each other in the vicinity of the reading position | 05-31-2012 |
20120170086 | IMAGE READER AND DOCUMENT CONVEYING METHOD - An image reader and document conveying method shorten times necessary for a discharge process that discharges a document being conveyed and for an idle feeding process of a document that is left on a paper feed tray. If during double-sided reading, a stop key is operated to issue an instruction to cancel reading, a conveyance controller outputs a path specifying signal to select a single-sided path, and thereby a conveyance route is switched from a double-sided path to the single-sided path. For this reason, the discharge process that discharges a document being conveyed at the time of the reading cancellation to a paper discharge tray, and the idle feeding process that discharges a document left on a paper feed tray to the paper discharge tray are performed with use of the single-sided path that is shorter than the double-sided path, and therefore the times necessary for the discharge and idle feeding processes can be shortened. | 07-05-2012 |