| 摘要 |
PURPOSE: An apparatus for adjusting push pressure of a feeding roller is provided to detect the thickness of paper before the paper transmits through so as to maintain a certain push pressure. CONSTITUTION: An apparatus for maintaining a certain push pressure of a feeding roller includes a paper weight sensor(32), a controller, a rotation bracket(34), and a roller holder. The paper weight sensor(32) detects the weight of the paper transferred from an automatic paper feeder. The controller receives the input signal of the paper weight sensor and generates a control signal with respect to a predetermined rotation value. The rotation bracket(34) receives the pulse control signal from the controller, and includes a long axis one side of the driving motor and a first tuck hole on the other edge of the driving motor. The roller holder includes a second tuck hole on one side of the first tuck hole and a rotation axis insertion hole formed at the center in which a rotational axis extended from a frame is inserted. The rotation axis is combined on the other side of the insertion hole.
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