Abstract: A pickup mechanism includes a mechanical frame, at least one pickup roller, a paper pressing board disposed above the mechanical frame, a transmitting element, a cover covered on the paper pressing board, at least one stopper element pivotally mounted to the paper pressing board, and at least one elastic element elastically disposed between the cover and the paper pressing board. The pickup roller is disposed under the mechanical frame. The paper pressing board has a bottom board. A top of the bottom board protrudes upward to form a movable portion. A front of the movable portion defines a driven link. The transmitting element is cooperated with the driven link of the paper pressing board to bring along the paper pressing board to be pressed downward and be raised up. The cover has a top wall. A bottom of the top wall protrudes downward to form a locking part.

Abstract: A pickup mechanism includes a mechanical frame, at least one pickup roller, a paper pressing board disposed above the mechanical frame, a transmitting element, a cover covered on the paper pressing board, at least one stopper element pivotally mounted to the paper pressing board, and at least one elastic element elastically disposed between the cover and the paper pressing board. The pickup roller is disposed under the mechanical frame. The paper pressing board has a bottom board. A top of the bottom board protrudes upward to form a movable portion. A front of the movable portion defines a driven link. The transmitting element is cooperated with the driven link of the paper pressing board to bring along the paper pressing board to be pressed downward and be raised up. The cover has a top wall. A bottom of the top wall protrudes downward to form a locking part.

Abstract: A paper feeding device includes a lower housing, an upper housing, a pickup assembly, a separation assembly, a relay assembly, a paper friction mechanism, an elastic element, a paper speed detector, a first paper feeding assembly, a second paper feeding assembly, a transmission assembly, a motor and a control unit. The control unit controls the paper speed detector to detect paper feeding speeds and the paper speed detector sends signals to the control unit for determining paper feeding conditions. The control unit controls the motor to rotate, and the motor drives the pickup assembly, the relay assembly and the first paper feeding assembly to rotate by virtue of the transmission assembly, and the first paper feeding assembly drives the second paper feeding assembly to rotate, the control unit is capable of adjusting rotating speeds of the motor, so that the paper feeding speeds are stabilized.

Abstract: A paper feeding device comprises a supporting frame, a pickup roller assembly, a paper blocking unit, a base and a sensor. The paper blocking unit is placed beside the pickup roller assembly, having a paper blocking element connected to the supporting frame, including a connecting portion, the connecting portion extends downwards to form a paper blocking arm. The sensor is located in the base, having an emitting arm and a receiving arm. The lower portion of the paper blocking arm can be located between the emitting arm and the receiving arm or depart from them for turning off/on the sensor. The paper feeding device decides whether the paper is provided on the base by the turn on/off status of the sensor, so an additional obstructer is avoided. Compared with conventional paper feeding device, the structure of the present invention is simple, and it is convenient to assemble.

Abstract: A scanning module includes a contact image sensor unit and a supporting base. The contact image sensor unit has a top surface, a bottom surface, a front surface and a back surface. The supporting base has a guiding portion, a positioning board mounted on the guiding portion, the two sides of the positioning board extends sideward and bends upward to form an elastic arm respectively, the contact image sensor unit is placed on the positioning board and the elastic arm elastically contacts the bottom surface of the contact image sensor unit. The two sides of the supporting base of the scanning module have an elastic arm respectively, the elastic arm contacts the contact image sensor unit directly and makes sure that the contact image sensor unit contacts the glass tightly.