A sheet post-processing device of the present disclosure is provided with a punch hole forming device, a processing tray, an ejection tray, a conveyance roller pair, an ejection roller pair, and a stiffening member. In a case where a sheet through which punch holes have been formed is to be ejected on the ejection tray without being subjected to post-processing on the processing tray, in a state where the stiffening member is retracted in a direction away from the sheet, the conveyance roller pair conveys the sheet until at least a tip end thereof reaches on the ejection tray.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

A plurality of marks (11) equidistantly provided on both side edge parts (1a) of a long medium (1), a plurality of first indicator holes (12) equidistantly given on at least one of the side edge parts (1a), and a plurality of second indicator holes (13) given on at least one of the side edge parts (1a) on a straight line different from a row of the first indicator holes (12) at spacings shorter than spacings of the first indicator holes (12) are provided, and the second indicator holes (13) are each provided to a side of a trailing-end mark (11b), and each gradually comes closer to a leading-end mark (11a) as the long medium (1) runs toward a trailing end.

A paper sheet processing device includes: a charging inlet that takes in paper sheets in a conveyance direction, the paper sheets including at least one target sheet and a partition card overlapped on the target sheet, the partition card having a main surface portion having at least one identification hole group, the identification hole group having at least two through holes arranged along the conveyance direction; a detection unit that detects take-in of the paper sheets by the charging unit, and detects the identification hole group; and a control unit that determines a paper sheet is the partition card in a case where the identification hole group has been detected by the detection unit, and determines that a paper sheet is the target sheet in a case where the identification hole group has not been detected by the detection unit.

A sheet post-processing device of the present disclosure is provided with a punch hole forming device, a processing tray, an ejection tray, a conveyance roller pair, an ejection roller pair, and a stiffening member. In a case where a sheet through which punch holes have been formed is to be ejected on the ejection tray without being subjected to post-processing on the processing tray, in a state where the stiffening member is retracted in a direction away from the sheet, the conveyance roller pair conveys the sheet until at least a tip end thereof reaches on the ejection tray.