| 摘要 |
PROBLEM TO BE SOLVED: To accurately detect a full stacked state of sheets within a tray even when delivery intervals of the sheets are short.SOLUTION: A sheet delivery device 100 includes: a tray 11 on which sheets are stacked; a delivery mechanism for delivering sheets one by one; a weight 20 lifted up by sheets to be delivered or sheets on the tray 11; a sensor SE transmitting a first signal when the weight 20 is located at a position lower than a reference position and transmitting a second signal when the weight 20 is located at a position equal to or higher than the reference position; a memory that stores a maximum value of a time interval at which the weight 20 is lifted up by two sheets continuously delivered at the time interval and maintains the height equal to or higher than the reference position, as a predetermined time; and a control part controlling the delivery mechanism. The control part controls the delivery mechanism so that the time interval between two sheets continuously delivered exceeds the predetermined time. |
