Patent application number | Description | Published |
20080265497 | SHEET FEEDING DEVICE AND SKEW DETECTING METHOD - A plurality of moving-amount detecting units respectively detects a moving amount of the sheet fed by a feeding unit at a plurality of points in a width direction of the sheet. A skew detecting unit detects a skew of the sheet based on the moving amount of the sheet detected by the moving-amount detecting units. | 10-30-2008 |
20110170149 | IMAGE READING APPARATUS AND IMAGE READING SYSTEM - A conveying device, comprising: a linear conveyance route on which a sheet-like medium is linearly conveyable; a bent conveyance route that is branched from the linear conveyance route and on which the medium is conveyable in a bent manner; a switching member provided at the branched portion and movable into a bent conveyance position for guiding the medium to the bent conveyance route and into a linear conveyance position for guiding the medium to the linear conveyance route, according to a force acting from the medium at a time of coming in contact with the medium; and a variable pressurizing unit configured to make a force acting on the medium from the switching member in the linear conveyance position smaller than a force acting on the medium from the switching member in the bent conveyance position. | 07-14-2011 |
20110176185 | PAPER FEED PORT AND IMAGE READING APPARATUS - In a paper feed port configured to feed a sheet-like medium to a conveyance path, an inclined surface is provided at both ends of an opening into which the medium to be fed is inserted, with respect to a width direction crossing a paper feed direction of the medium, such that an abutting angle between the inclined surface and a leading end of the medium on a downstream side in the paper feed direction is an acute angle. | 07-21-2011 |
20110273753 | IMAGE READING APPARATUS - An image reading apparatus includes a lower unit, an upper unit arranged above the lower unit and a guide arranged on an opposite side to the lower unit with respect to the upper unit. The guide relatively rotates with respect to the upper unit in a direction away from the upper unit so as to form an ejection path, between the upper unit and the guide, of a sheet-like medium conveyed between the upper unit and the lower unit. The upper unit and the guide are close to each other respectively, at positions closest to the lower unit in respective rotation ranges of relative rotation with respect to the lower unit. The rotation range of the guide is wider than that of the upper unit, in a rotation direction away from the lower unit from the positions close to each other. | 11-10-2011 |
20120314264 | IMAGE READING APPARATUS - An image reading apparatus includes a main body, a rotation unit supported on the main body so as to be rotatable around a rotation axis, an imaging unit that is mounted on the rotation unit at an outward position in a radial direction of the rotation axis and images a medium to be read that is placed on a placement surface located under the rotation unit in the vertical direction, and a light source that irradiates the medium to be read with light. The light source and the imaging unit can be arranged with a relative positional relationship capable of suppressing specular reflected light of light that is emitted from the light source and reflected by the medium to be read from being incident on the imaging unit. | 12-13-2012 |
20120320432 | OVERHEAD SCANNER - An overhead scanner includes a main body, a rotation unit supported by the main body and being rotatable around a rotation axis, an imaging unit mounted on the rotation unit and is configured to read a medium placed on a placement surface below the rotation unit, a light source that irradiates the medium with light, a driving unit that moves the rotation unit around the rotation axis toward a placement side, where the medium is placed, and a posture change detecting unit that detects posture change of the main body. When it is determined that the main body falls down based on the posture change detected, while the rotation unit is located at a readable position for reading the medium, the driving unit moves the rotation unit toward the standby position where the rotation unit is located when the imaging unit does not read the medium. | 12-20-2012 |
20130335786 | OVERHEAD IMAGE READING APPARATUS - An overhead image reading apparatus | 12-19-2013 |
20130335789 | OVERHEAD IMAGE READING APPARATUS - An overhead image reading apparatus includes an image-capturing unit that captures an image of a medium to be read placed on a placement surface from above, a light source capable of irradiating the medium with light, and a brightness controller that gradually alters brightness of the light source at least when the light source is turned on or when the light source is turned off. The overhead image reading apparatus may gradually alter the brightness by duty control on current supplied to the light source. Or, the overhead image reading apparatus may gradually alter the brightness by controlling a current value supplied to the light source. Alternatively, the overhead image reading apparatus may include a variable aperture between the light source and the placement surface to gradually alter the brightness by controlling an opening area of the aperture. | 12-19-2013 |
20140354867 | LINEAR LIGHT SOURCE APPARATUS AND IMAGE READING APPARATUS - A linear light source apparatus is provided, being configured to convert light emitted from one light emitting element to light extended linearly, and output thus converted light. There is a lens that diffuses light flux within a predetermined region including the optical axis of the light emitting element, out of the light incident from the light emitting element, at a predetermined diffusion angle in the second direction (x-direction). The light is made to converge with respect to the first direction (y-direction). This converts the light from one light emitting element to light extended linearly and outputs the converted light. As for the second direction (x-direction), it is possible to make the light flux sparse in the predetermined region, and in the region outside thereof, the light flux is rendered to be dense. Therefore, a distribution of light quantity in the longitudinal direction (x-direction) is implemented by controlling the light flux density, upon employing the linear light source apparatus as a light source of the image reading apparatus. | 12-04-2014 |