Detecting device for detecting presence of items in a multiple supply arrangement

摘要

A detecting device is adapted for detecting the presence of an item and includes a shaft rotatably supported on a frame, a first contacting member attached to the shaft and operable to come into contact with an item; a second contacting member attached to the shaft and operable to come into contact with an item, the second contacting member being spaced away from the first contacting member in an axial direction of the shaft by a specified distance, a pivotal member, a detector for detecting whether the pivotal member is at a specified detecting position, and a transmission device for transmitting a rotation of either the first or second contacting member to the pivotal member to rotate the pivotal member to the specified detecting position.