| 摘要 |
A paper feeding apparatus includes a first support member for supporting a central area of a lower surface of printing paper placed on a paper tray, second support members for supporting corner areas of the lower surface of the printing paper, sensors for detecting heights of an upper surface of the printing paper placed on the paper tray, motors rotatable based on signals from the sensors, and lift screws vertically movable by the motors. The second support members are connected to the lift screws to be vertically movable therewith, respectively.
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