PAPER FEED DEVICE

A controller performs a positioning operation by driving an elevator motor before starting a paper feed operation using a paper feed roller unit. While the controller performs the paper feed operationusing the paper feed roller unit after an upper limit sensor is brought into an on-state by the positioning operation, when the upper limit sensor is brought into an off-state, the controller performs a paper feed position following operation by driving the elevator motor to raise a paper feed tray until the upper limit sensor is brought into the on-state. The controller controls the elevator motor with setting a current limit in the positioning operation such that a current flowing to the elevator motor does not exceed a predetermined current limit value and controls the elevator motor without the current limit in the paper feed position following operation. 本发明提供一种供纸装置。控制部在开始利用供纸辊单元的供纸动作时，使升降机电动机驱动来执行找位动作。控制部在通过找位动作使得上限传感器成为开启后，一边执行利用供纸辊单元的供纸动作，一边执行如下的供纸位置跟踪动作：当上限传感器变为关闭时，使升降机电动机驱动来使供纸台上升，直到上限传感器变为开启为止。控制部在找位动作