Patent application number | Description | Published |
20080205209 | OPTICAL DISC DEVICE - The invention provides an optical disc device conducting highly accurate skew adjustment, avoiding an increase in the number of components, and achieving downsizing. This optical disc device includes: a guide shaft for supporting an optical pickup and guiding its movement; a chassis the guide shaft is attached to; a coil spring attached to the chassis for applying force to an end of the guide shaft; an adjustment screw for adjusting the force applied by the coil spring, provided opposite the coil spring with respect to the guide shaft; and a weight addition member attached to the chassis, wherein internal threads for engaging with the adjustment screw are formed in the weight addition member, and the axis of the adjustment screw engaged with the internal thread, the center of a cross section of the guide shaft perpendicular to its axis, and the axis of the coil spring are aligned along the same line. | 08-28-2008 |
20080209457 | DISC DEVICE - The invention provides a disc device capable of offering good SATA interface performance by optimizing the placement of the SATA connector relative to the control board, solving problems concerning noise or unnecessary radiation. | 08-28-2008 |
20100133738 | SHEET CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS USING THE SAME DEVICE - A sheet conveyance device to convey a sheet which is stored within a sheet storing section, including: a plurality of sheet conveyance rollers, mounted on a sheet storing section, to be parallel to each other with respect to rotating centers, wherein the plurality of the sheet conveyance rollers come into contact with the sheet to convey the sheet toward an exterior of the sheet conveyance device; and a coupling section to couple the plurality of the sheet conveyance rollers and to rotate the plurality of the sheet conveyance rollers, wherein at least one of the plurality of the sheet conveyance rollers represents an irregularly shaped roller, wherein the irregularly shaped roller is coupled to another sheet conveyance roller by the coupling section, and wherein a distance between a rotation center and a peripheral surface of the irregularly shaped roller is inconstant, in a rotational direction of the irregularly shaped roller. | 06-03-2010 |
20100221052 | RECORDING SHEET DE-CURLING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - A sheet de-curling device: including a first de-curling roller, structured of a round axial shaft and a long bar-shaped member, wherein the long bar-shaped member is spiraled on the round axial shaft clockwise from a predetermined portion of a center of the round axial shaft toward a left end of the round axial shaft, and counterclockwise from the predetermined portion of the center of the round axial shaft toward a right end of the round axial shaft with the same spiraling pitch; a second de-curling roller, structured of a round axial shaft and a long bar-shaped member, wherein the long bar-shaped member is spiraled on the round axial shaft in opposite spiraling directions against the first de-curling roller; and a driving mechanism which rotates the paired first and second de-curling rollers. | 09-02-2010 |
20100232855 | DOUBLE-SURFACE IMAGE FORMING APPARATUS - A double-surface image forming apparatus, including: an image carrier; a registration section; an image fixing device; a sheet recirculating supplying section; a sheet reversing section, arranged on a path of the sheet recirculating supplying section, to reverse the recording sheet from the front surface to a reverse surface by a switch-back conveyance; and a sheet rotating device, arranged on a path of the sheet recirculating supplying section, to stop the sheet at a predetermined position and to rotate the stopped sheet 180° in the sheet conveying direction, wherein the sheet rotating device includes; a positive rotation conveying section; a positive-negative rotation conveying section to rotate the sheet to the sheet conveying direction and to an opposite direction of the sheet conveying direction; and a rotation center nipping section, arranged to meet a position of the rotation center of the sheet, to support the sheet. | 09-16-2010 |
20120327444 | IMAGE FORMING APPARATUS - Disclosed is an image forming apparatus including: an image forming unit to form an image on a paper in an image forming position; a transportation path to transport the paper to the image forming position; an acquisition unit arranged upstream of the image forming position in a paper transportation direction and to acquire a shift amount from an edge reference position to an edge of the paper in a paper width direction perpendicular to the paper transportation direction; a pair of resist rollers arranged upstream of the acquisition unit in the paper transportation direction and capable of swinging in the paper width direction; and a control unit configured to determine an instruction value based on a paper state and the shift amount before the pair of resist rollers moves, and to move the pair of resist rollers in accordance with the instruction value in the paper width direction. | 12-27-2012 |
20130108283 | IMAGE FORMING APPARATUS | 05-02-2013 |
20130142525 | IMAGE FORMING APPARATUS - An image forming apparatus includes a fixing section, a de-curling section, and a control section. The de-curling section has a de-curling nip portion that presses a sheet to correct a curl caused in the sheet, and a corrective force thereof to press the sheet changes at least in two steps. The control section increases the conveyance speed of the sheet after a rear end of the sheet has passed the fixing nip portion when the de-curling section supports by sandwiching the sheet with a weakly-pressing force. When the de-curling section supports by sandwiching the sheet with a strongly-pressing force, the controller increases the conveyance speed of the sheet after the rear end of the sheet has passed the fixing nip portion and the de-curling nip portion. | 06-06-2013 |
20130256982 | IMAGE FORMING APPARATUS - The control portion controls the sheet adjusting portion to alternately convey the sheet of paper fed from the sheet-feeding path for single-side printing and the sheet of paper fed from the sheet-feeding path for duplex printing to the image forming portion during the duplex printing mode. Images are alternately formed on the front surface of each of the sheets of paper and the back surface of each of the sheets of paper when three sheets of paper are conveyed to the image forming apparatus and they are left therein. The control portion controls the sheet conveying portion to release the contact of the conveying rollers after it is detected that the sheet of paper reaches the sheet adjusting portion. | 10-03-2013 |
20140064813 | IMAGE FORMING APPARATUS - An improved image forming apparatus is described in which, even when a conveyance unit is switched from a pressure engaged state to a disengaged state, misalignment of a sheet during conveyance can be inhibited. A control unit conveys a sheet between a transfer unit and paper stop rollers, while forming a loop of the sheet therebetween, by setting the speed of conveying the sheet passing between the paper stop rollers to be higher than the speed of conveying the sheet passing through the transfer unit. In addition to this, when the pair of rollers serving as the paper stop rollers are switched from a pressure engaged state to a disengaged state, the paper stop rollers are controlled to reduce the speed of conveying the sheet therethrough in advance of this switching operation. | 03-06-2014 |