Patent application number | Description | Published |
20110065540 | BELT DRIVE MECHANISM WITH BELT TENSIONER - A belt drive mechanism with belt tensioner has a driving pulley pivoted to a fixing frame, a driven pulley pivoted to the fixing frame, with a belt wrapping thereon, and a tensioner which has a wheel pivoted to a mounting block of the fixing frame and rests against the running belt, and a cap rotatably covered to a top of the wheel. The cap has a through hole engaged with the mounting block and is capable of moving along a direction substantially perpendicular to a running direction of the belt at a contact position with the wheel. An elastic element is mounted between the mounting block and an inner side of the through hole and compressed by the moved cap to store an elastic force which releases to bring the wheel to press the running belt away from the mounting block for compensating a tensile force of the running belt. | 03-17-2011 |
20120033272 | Calibration Mechanism And Scanning Device Has The Calibration Mechanism - A calibration mechanism is positioned in a scanning device. The scanning device includes a scanning module having a transparent plate for being passed through a scanned light beam and creating a scanned color. The calibration mechanism includes a processor means and a display means. The display means is positioned to face the transparent plate of the scanning module and controlled by the processor means to alter the scanned color to a display color. Since, the calibration mechanism is capable altering the background color. Furthermore, the calibration mechanism has a simple structure and a compact size for conveniently positioned in a compact scanning device. | 02-09-2012 |
20120056368 | DOCUMENT FEEDING MECHANISM - A document feeding mechanism includes a frame, a document picking means positioned in the frame for picking up and conveying a document, a stopper means positioned in the frame for blocking the conveyance of the document, a supporting portion cooperating with the stopper means for supporting the document picking up means while the document picking up means is raised at a predetermined level, and a blocking portion restricting a rotatable angle of the stopper means for blocking the conveyance of the document while the document picking up means is raised at the predetermined level. The document feeding means is kept at the predetermined level via the cooperation of the supporting portion and the stopper means for supporting the document feeding means. Since, the document feeding mechanism has high reliability to resist shake and crash for preventing the document picking up means from being drooped. | 03-08-2012 |
Patent application number | Description | Published |
20090185238 | OPTICAL SCANNING DEVICE - An optical scanning device with a dustproof function includes a shell defining a first receiving room and a second receiving room communicating with the first receiving room through an open window defined on the shell for scanning light beams passing therethrough. An optical scanning module is mounted in the first receiving room. A glass platform is located on the second receiving room at a position facing the open window for insulating the first receiving room from the outside of the shell. A correcting plate is stuck on the bottom of the glass platform. Such structure of the optical scanning device enables the glass platform to be firstly assembled with the shell in a dustless chamber, which prevents the suspending dust from falling in the first receiving room and attaching to the optical scanning module during the subsequent assembly process and ensures the scanning quality of the optical scanning device. | 07-23-2009 |
20090256306 | PAPER FEEDING DEVICE - A paper feeding device includes a pick roller, a spring element and a separator pad. The pick roller has a roller surface. The spring element is disposed above the pick roller. The spring element has two spring arms extending toward two ends of the pick roller. Free ends of the two spring arms extend to positions outside the two ends of the pick roller and below the roller surface so as to be contactless with the roller surface and are pushed forward and upward by papers and then transfer a press force to the pick roller. A separator pad is arranged in front of the spring element and contacts with the roller surface of the pick roller for cooperating with the pick roller to separate a lowermost one of the papers. Because the spring arms are contactless with the pick roller directly, so the spring arms do not rub the pick roller, which avoids the pick roller being abraded. | 10-15-2009 |
20090256307 | SHEET SEPARATING MECHANISM OF AN AUTO SHEET FEEDER AND AUTO SHEET FEEDER INCORPORATING THE SAME - An auto sheet feeder used for a device comprises an upper frame, a pick roller and a sheet separating mechanism secured on the upper frame. The sheet separating mechanism includes a bracket and a pair of arms disposed on the bracket and spring-biased toward the pick roller. A separator pad is disposed on the bracket and spring-biased toward the pick roller. A press plate is positioned on the bracket and presses against the separator pad. A torsion spring mounted above the press plate has at least two coil portions. Two adjacent ends of the coil portions extend toward the same side and then joint each other to form a contact portion which always props the upper frame. Two ends of the torsion spring have a retaining arm respectively. The two retaining arms are opposite each other and pivotally engage to two sides of the press plate respectively. The torsion spring is compressed by the press plate when the sheets push the separator pad and pushes the press plate and the separator pad to be reposition after the lowermost one of the sheets is separated. | 10-15-2009 |
20090284811 | OPTICAL SCANNING DEVICE - An optical scanning device with a dustproof function includes a shell defining a first receiving room and a second receiving room communicating with the first receiving room through an open window defined on the shell for scanning light beams passing therethrough. An optical scanning module is mounted in the first receiving room. A glass platform is located on the second receiving room at a position facing the open window for insulating the first receiving room from the outside of the shell. A correcting plate is stuck on the bottom of the glass platform. Such structure of the optical scanning device enables the glass platform to be firstly assembled with the shell in a dustless chamber, which prevents the suspending dust from falling in the first receiving room and attaching to the optical scanning module during the subsequent assembly process and ensures the scanning quality of the optical scanning device. | 11-19-2009 |
20100140866 | MECHANISM AND METHOD OF MULTIPLE DOCUMENTS FEEDING DETECTION - The present invention provides a multiple documents feeding detection mechanism includes an advancing roller applying a driving torque, a retarding roller applying a resisting torque and connected to the advancing roller for transporting pieces of documents, and a detecting means. The friction of a surface of the advancing roller, the friction of a surface of the retarding roller, the driving torque and the resisting torque are tuned to urge the retarding roller either into rotation while one signal document fed into a nip between the advancing roller and the retarding roller, or in standstill while multiple document fed into the nip. The detecting means determines whether the multiple documents feeding is caused by monitoring an action of the retarding roller. | 06-10-2010 |
20100258997 | SHEET PROCESSING APPARATUS AND SHEET PROCESSING METHOD - A sheet processing apparatus includes a sheet-table unit, a sheet-separating unit disposed at a downstream end of the sheet-table unit along a convey direction of the sheets, a convey unit arranged at a downstream end of sheet-separating unit, a discharge unit located at a downstream end of the convey unit, an sheet processing unit placed between the convey unit and the discharge unit, a speed sensor arranged at an upstream end of the sheet-separating unit for detecting a movement of each sheet for forming a sheet interval between two adjacent sheets, and an edge sensor located between the sheet-separating unit and the sheet processing unit. The edge sensor detects a front edge and a rear edge of each sheet passing therethrough, and sends corresponding control signals to a system controller which delays a predetermined time according to the control signals to control the sheet processing unit to start and stop processing. | 10-14-2010 |
Patent application number | Description | Published |
20130119601 | PICKUP MECHANISM - A pickup mechanism includes a main frame, a supporting element mounted to the main frame, and a pickup module positioned in the main frame and including a pickup arm, a transmitting element, a separation element, a pickup element and a barrel element. The separation element includes a separation shaft and a separation roller. The pickup element includes a pickup shaft and a pickup roller. The separation roller and the pickup roller are restricted in the pickup arm. The transmitting element links the separation shaft and the pickup shaft. The pickup arm is pivoted at the separation shaft. The barrel element has a base portion pivotally mounted around the pickup shaft, and a stopping block. When the pickup module swings upward or downward, the barrel element is driven to rotate along with the pickup shaft to make the stopping block against the supporting element or apart from the supporting element. | 05-16-2013 |
20140110898 | FEEDING APPARATUS - A feeding apparatus includes a pickup roller arranged to pick and feed a medium downstream along a conveying path, a separating roller arranged downstream to the pickup roller for advancing the medium downstream, a brake roller arranged opposite to the separating roller, and a pressing structure arranged opposite to the pickup roller and operable to swing toward or away from the pickup roller according to the rotating direction of the brake roller. When the brake roller rotates for feeding mediums downstream, the pressing structure moves toward the pickup roller and applies a normal force required for picking the medium. But when the brake roller stops rotating downstream because multiple mediums are fed between the brake roller and the separating roller, the pressing structure moves away from the pickup roller and stops applying normal force, so as to control the medium-picking process. | 04-24-2014 |
20140118803 | SCANNING DEVICE - A scanning device includes a scanning platform, a feed roller mounted above the scanning platform and rotatable to bring a sheet-like medium across the scanning platform, first and second elastic elements located under two ends of the scanning platform to press the scanning platform against the feed roller. One end of the scanning device near to the first elastic element is defined as a datum end for guiding the mediums to enter the scanning device. The first elastic element acts a greater force on the scanning platform than the second elastic element, or the distance from the first elastic element to the datum end is smaller than that from the second elastic element to the other end of the scanning device and the force from the first elastic element is equal to that from the second elastic element, so as to make the medium levelly transmitted during being scanned. | 05-01-2014 |
20140306400 | FEEDING APPARATUS - A feeding apparatus includes a pickup roller arranged to pick and feed a medium downstream along a conveying path, a separating roller arranged downstream to the pickup roller for advancing the medium downstream, a brake roller arranged opposite to the separating roller, and a pressing structure arranged opposite to the pickup roller and operable to swing toward or away from the pickup roller according to the rotating direction of the brake roller. When the brake roller rotates for feeding mediums downstream, the pressing structure moves toward the pickup roller and applies a normal force required for picking the medium. But when the brake roller stops rotating downstream because multiple mediums are fed between the brake roller and the separating roller, the pressing structure moves away from the pickup roller and stops applying normal force, so as to control the medium-picking process. | 10-16-2014 |
20140306401 | FEEDING APPARATUS - A feeding apparatus includes a pickup roller arranged to pick and feed a medium downstream along a conveying path, a separating roller arranged downstream to the pickup roller for advancing the medium downstream, a brake roller arranged opposite to the separating roller, and a pressing structure arranged opposite to the pickup roller and operable to swing toward or away from the pickup roller according to the rotating direction of the brake roller. When the brake roller rotates for feeding mediums downstream, the pressing structure moves toward the pickup roller and applies a normal force required for picking the medium. But when the brake roller stops rotating downstream because multiple mediums are fed between the brake roller and the separating roller, the pressing structure moves away from the pickup roller and stops applying normal force, so as to control the medium-picking process. | 10-16-2014 |