Compact document bundler

A document bundler (100) for a bill validator includes a document path (110), a transportation unit (940), and a clamp mechanism (102). The transportation unit is adapted to move a plurality of documents (105, 305) in series through the document path. The clamp mechanism includes a pushing member (135). The clamp mechanism is adapted to clamp a first document (105) of the plurality of documents with the pushing member to inhibit movement of the first document by the transportation unit while a second document (305) of the plurality of documents is transported substantially alongside the first document in the document path. The second document residing substantially alongside the first document forms a document bundle. Related apparatus, systems, techniques and articles are also described. 种用于纸币识别器的票据打捆机(100)包括票据路径(110)、运送单元(940)以及夹持机构(102)。所述运送单元适于使多个票据(105、305)连续地移动通过所述票据路径。所述夹持机构包括推动构件(135)。所述夹持机构适于通过所述推动构件夹持所述多个票据中的第票据(105)，以阻止所述第票据被所述运送单元移动，同时所述多个票据中的第二票据(305)在所述票据路径中被运送到基本上与所述第票据并排。所述第二票据基本上与所述第票据并排驻留而形成