Patent application number | Description | Published |
20110187041 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes a sheet-table unit, a sheet-separating unit, a convey unit, a discharge unit, a sheet processing unit, and a sensor arranged at an upstream end of the convey unit and spaced from the discharge unit with a predetermined distance. The convey unit has a convey roller, a convey pulley, and an elastic device connected with the convey pulley. The elastic device has a cylinder, a fixing shaft fixed to the cylinder, and a spring having two free ends fixed to the fixing shaft and a portion of the convey pulley opposite to the convey roller. When the signal resulted from a rear end of the sheet apart from the sensor is sent to the system controller, the cylinder is commanded by the system controller to draw back the fixing shaft. The spring is elongated to make the convey pulley away from the convey roller. | 08-04-2011 |
20110243627 | Method Of Conveying Documents For Automatic Document Feeder - A method of conveying documents for an ADF includes steps of beginning a first conveying procedure of a next document after a preceding document passes through a scanning section during a first conveying procedure of the preceding document, performing a first inverting procedure and then beginning a second conveying procedure of the preceding document during the first conveying procedure of the next document, performing a first inverting procedure and then beginning a second conveying procedure of the next document during the second conveying procedure of the preceding document, performing a second inverting procedure and then beginning a third conveying procedure of the preceding document during the second conveying procedure of the next document, and performing a second inverting procedure and then beginning a third conveying procedure of the next document during the third conveying procedure of the preceding document. The next document begins the first conveying procedure during the preceding document performs the first conveying procedure to improve the efficiency and speed. | 10-06-2011 |
20120008175 | Calibration Mechanism And Scanner Has The Calibration Mechanism - A calibration mechanism is positioned in a scanning device having a scanning module for scanning a document. The scanning module defines a scanning line perpendicular to a scanned area of the document. The calibration mechanism includes a calibration unit, a supporting unit supporting the calibration unit, and a driving unit. The calibration unit is positioned to face the scanning module and aligned with the scanning line. The driving unit drives the calibration unit to move to close to the scanning module and away from the scanning module along the scanning line. The scanning module obtains great brightness value by scanning the calibration unit, if the calibration unit is close to the scanning module. The scanning module obtains small brightness value by scanning the calibration unit, if the calibration unit is far from the scanning module. Since, the calibration unit can represented as different colors and gray scales. | 01-12-2012 |
Patent application number | Description | Published |
20110241280 | SHEET PROCESSING APPARATUS - A sheet processing apparatus includes a sheet-table unit, a sheet-separating unit, a convey unit, a discharge unit, a sheet processing unit, and a sensor arranged at an upstream end of the convey unit and spaced from the discharge unit with a predetermined distance. The convey unit has at least one convey roller, at least one convey pulley, and an elastic device connected with the convey pulley. The elastic device has a stepping motor, a transmission system, a shaft and at least one torsional spring mounted on the shaft. Two ends of the torsional spring is connected with the convey pulley. When the signal resulted from a rear end of the sheet apart from the sensor is sent to the system controller, the stepping motor is commanded by the system controller to rotate the shaft. The torsional spring is twisted to make the convey pulley move away from but still contact with the convey roller. | 10-06-2011 |
20130249163 | PAPER TRANSMITTING MECHANISM AND THE DOCUMENT FEEDER WITH THE PAPER TRANSMITTING MECHANISM - A paper transmitting mechanism mounted on the transmitting path which includes a driving wheel, a driving system drives the driving wheel, a pressure wheel, a pressure wheel adjusting unit, and a paper sensor settled upstream to the driving wheel and pressure wheel. The pressure wheel adjusting unit includes an elastomeric unit; one end of the elastomeric unit is connected to the axle of the pressure wheel, and the other end is connected to a linear driving device. When the paper sensor detects the paper is going to enter or leave the driving wheel, the paper sensor will send a signal for adjusting the clamping force between the driving wheel and the pressure wheel to make the clamping force and the friction between the driving wheel and the pressure wheel adjustable according to the position of the paper, so as to avoid the paper slipping or vibrating during transmitting. | 09-26-2013 |
Patent application number | Description | Published |
20130119600 | PAPER FEEDING MECHANISM - A paper feeding mechanism includes a frame, a pickup assembly, at least one stopper element and one resisting element. The pickup assembly mounted in the frame includes a pickup bracket, a separation element and a pickup element. The stopper element is pivotably mounted between the pickup element and the separation element, and includes a blocking portion and a stopper portion. The resisting element is pivotably mounted between the stopper element and the separation element, and includes a resisting portion and a raising portion. The pickup element wiggles upward or downward under a drive of a gear to make the resisting element wiggle upward or downward with the resisting portion resisting against the stopper portion or being away from the stopper portion to make the blocking portion block papers entering the paper feeding mechanism, or loose the blocking portion freely to let the papers enter the paper feeding mechanism. | 05-16-2013 |
20140260739 | TRANSMISSION DEVICE FOR AUTOMATIC DOCUMENT FEEDER - A transmission device for an automatic document feeder includes a driving gear set driven by a driving motor, a first swing arm equipped with a first driving roller set, a second swing arm equipped with a second driving roller set, and a one-way gear set driven by the driving gear set to keep transmitting rollers rotating in the same direction. The first swing arm is driven by the driving gear set and swingable between a first position and a second position to mesh the first driving roller set with a pickup device or an output device. The second swing arm is driven by the driving gear set and swingable between a third position and a fourth position to mesh the second driving roller set with the pickup device or the output device. When the first swing arm swings toward the first/second position, the second arm swings toward the fourth/third position. | 09-18-2014 |
20140361481 | AUTOMATIC DOCUMENT FEEDER - An automatic document feeder includes a paper transmitting path for guiding documents, a driving motor for providing driving torque, a pickup device disposed at the upstream of the paper transmitting path, an output device disposed at the downstream of the paper transmitting path and transmitting rollers disposed along the paper transmitting path for transmitting the documents, a first driving gear disposed between the pickup device and the output device, a transmitting gear swing arm equipped with a transmitting gear set and axially hinged with the first driving gear to swing according to the driving torque between a first position meshing the transmitting gear set with the pickup device and a second position idling the transmitting gear set, an actuator connected with the output device and a braking device disposed on the output device for locking the transmitting gear swing arm according to the position of the output device. | 12-11-2014 |