Patent ID: 8376359

Claim:
A method of processing a paper sheet, wherein the paper sheet is conveyed from an insertion slot through which the paper sheet is inserted and a reading device reads information of the paper sheet, comprising the steps of: conveying the paper sheet having been inserted from the insertion slot at a first speed to a position where the information of the paper sheet can be read by the reading device; judging an authenticity of the paper sheet based on the information having been read; and setting a conveyance speed of the paper sheet to be conveyed to a housing part such that the conveyance speed is controlled to become a second speed which is higher than the first speed after the paper sheet is judged as a legitimate paper sheet as a result of the judging step, wherein an input operation is urged once the paper sheet is judged as the legitimate paper sheet in the setting step and the conveyance speed is set after the input operation is made.