Patent ID: 8181952

Claim:
A paper sheet handling mechanism, comprising: a transport path having a loop-shaped part provided in a middle part thereof, a downstream side including at least the loop-shaped part of the transport path being capable of transporting a plurality of paper sheets; a driving unit configured to move the paper sheets along the transport path, such that the paper sheets, respectively present on an upstream side relative to the loop-shaped part as well as on the loop shaped part, can be transported, independently of or in synchronism with, one another; a paper sheet length detector provided to the loop-shaped part or the upstream side relative to the loop-shaped part along the transport path and configured to detect whether or not a length in a transport direction of the paper sheet fed to the loop-shaped part from the upstream side relative to the loop-shaped part along the transport path is longer than a predetermined length; and a control unit configured to control the driving unit to move each of the paper sheets present on the upstream side relative to the loop-shaped part and one paper sheet or a batch of paper sheets present on the loop-shaped part, such that once the paper sheet present on the upstream side relative to the loop-shaped part is fed to the loop-shaped part, the paper sheet present on the upstream side relative to the loop-shaped part can be stacked with the one paper sheet or the batch of paper sheets circulated along the loop-shaped part, wherein when the paper sheet length detector detects that the length in the transport direction of the paper sheet fed to the loop-shaped part from the upstream side relative to the loop-shaped part is longer than the predetermined length, such a detected paper sheet and the one paper sheet or batch of paper sheets held on the loop-shaped part will be simultaneously ejected from the loop-shaped part.