PURPOSE: To facilitate handling a left-behind medium thereafter by a clerk in charge, by providing a medium collecting means of collecting in a medium collection part this medium collated with an itemized account when the medium is left-behind, in a transaction dealing device of releasing the medium, assigned by a customer at automatic transaction time, and the itemized account of this medium.

CONSTITUTION: In an automatic paying machine of arranging an itemized account processing unit 12 in an upper part of a device main unit 11 to arrange a note processing unit 13 in a lower part of this unit 12, in the case of not extracting a note A released to a note releasing port 21 even after a fixed time, the note A is judged to be left behind, to collect the left-behind note A to a left-behind note collecting box 26 through a take-in roller 25 of the note releasing port 21 and through a left-behind note collecting line L5. An itemized account collecting line L2 is connected to the end part of the take forgotten note collecting line L5, similarly to guide a left-behind itemized account 18 to the note collecting line L5, so as to be accumulated in an upper surface of the finally accumulated note of the left-behind note collecting box 26.