Patent ID: 8746433

Claim:
A document handler comprising: a frame having a pair of side walls and a bracket for connecting said side walls, a validator detachably attached to said frame, said validator comprising a bottom surface and a conveyer device having at least one drive gear that protrudes outside of said bottom surface, a stacker attached to the frame and comprising a storage, a chamber, a pusher device disposed in the chamber for stowing into the storage a document transported from the validator and a follower gear for driving the pusher device, and a connector for detachably attaching the validator to the frame, wherein the connector comprises a cam guide formed on at least one of side walls in the frame or on at least one of side walls in the validator, and a follower formed on at least one of the side walls in the validator or on at least one of the side walls in the frame to detachably bring the follower into engagement with the mating cam guide, the cam guide comprises a horizontal distal path for guiding movement of the follower to transport the validator in a spaced relation to the bracket without physical contact of the drive gear of the conveyor device to the bracket, an aslope access path connected to the distal path for guiding along the access path the follower passed through the distal path to bring the drive gear into engagement with the follower gear, and a horizontal proximal path connected to an end of the access path for guiding the follower to a fixed position.