Description Title of Invention: PAPER SHEET BUNDLING APPARATUS 5 Technical Field [0001] The present invention relates to a paper sheet bundling apparatus that bundles paper sheets in a unit of a predetermined number of sheets. 10 Background Art [0002] A known paper sheet bundling apparatus bundles various paper sheets typified by banknotes using a bundling band for each predetermined number of sheets, and affixes a stamp to the bundling band after the bundling (see, for example, 15 Patent Literature 1). {Moreover, another known paper sheet bundling apparatus checks the printing density of a stamp affixed to a bundling band, and adjusts stamp affixing time and stamp affixing intervals on the basis of the checking results, to thereby stabilize a stamp affixing state (see, for example, 20 Patent Literature 2). [0003] If a plurality of paper sheets are put on top of each other, irregularities occur on the surface due to ink, security threads, and the like. There is a problem that, if portions in which such irregularities occur are bundled using a 25 bundling band and a stamp is affixed thereto, partial missing of the affixed stamp occurs, and the affixed stamp is difficult to read. Citation List 30 Patent Literature [0004] Patent Literature 1: Japanese Patent Laid-Open No. 2003-300501 Patent Literature 2: Japanese Patent Laid-Open No. 35 2003-211809 ^ Summary of Invention Technical Problem [0005] The present invention has an object to provide a paper sheet bundling apparatus capable of preventing 5 occurrence of partial missing of an affixed stamp. Solution to Problem [0006] A paper sheet bundling apparatus according to an aspect of the present invention includes: a bundling unit 10 configured to bundle bundling target paper sheets using a bundling band and make a batch of paper sheets; a stamp affixing unit configured to affix a stamp to the bundling band of the batch of paper sheets; a memory unit configured to store therein an association between the kind of paper sheet and a 15 stamp affixing position on the bundling band or the paper sheet; and a control unit configured to obtain a stamp affixing position corresponding to the kind of the bundling target paper sheets with reference to the association, and adjust a positional relation between the stamp and the bundling band or the batch 20 of paper sheets at a time of affixing the stamp, on a basis of the obtained stamp affixing position. [0007] A paper sheet bundling apparatus according to another aspect of the present invention includes: a bundling unit configured to bundle bundling target paper sheets using a 25 bundling band and make a batch of paper sheets; a stamp affixing unit configured to affix a stamp to the bundling band of the batch of paper sheets; a memory unit configured to store therein an association between the kind of paper sheet and a stamp affixing impossible position on the bundling band or the 30 paper sheet; and a control unit configured to obtain a stamp affixing position corresponding to the kind of the bundling target paper sheets with reference to the association, and adjust a positional relation between the stamp and the bundling band or the batch of paper sheets at a time of affixing the stamp, on a 35 basis of the obtained stamp affixing position. [0008] In the paper sheet bundling apparatus according to 4^ any of the aspects of the present invention, preferably, the paper sheets are banknotes, and the kind includes a denomination. [0009] In the paper sheet bundling apparatus according to 5 any of the aspects of the present invention, preferably, the kind includes at least any one of fitness and the kind of banknote. [0010] In the paper sheet bundling apparatus according to any of the aspects of the present invention, preferably, the kind includes face/back and orientation. 10 [0011] In the paper sheet bundling apparatus according to any of the aspects of the present invention, preferably, the control unit obtains the stamp affixing position in accordance with a ratio of fit notes to unfit notes or a ratio of new version notes to old version notes, the notes being included in the batch 15 of paper sheets. [0012] In the paper sheet bundling apparatus according to any of the aspects of the present invention, preferably, the control unit obtains the stamp affixing position in accordance with a ratio of face-up notes to face-down notes included in the 20 batch of paper sheets or an orientation-based ratio. [0013] In the paper sheet bundling apparatus according to any of the aspects of the present invention, preferably, the control unit adjusts a position of the batch of paper sheets with respect to the stamp, on the basis of the obtained stamp 25 affixing position. [0014] In the paper sheet bundling apparatus according to any of the aspects of the present invention, preferably, the control unit adjusts a position of the stamp with respect to the batch of paper sheets, on the basis of the obtained stamp 30 affixing position. [0015] In the paper sheet bundling apparatus according to any of the aspects of the present invention, preferably, the control unit gives the bundling unit an instruction about a bundling position of the bundling band, on the basis of the 35 obtained stamp affixing position. [0016] In the paper sheet bundling apparatus according to ^ any of the aspects of the present invention, preferably, the memory unit further stores therein an association between the kind of paper sheet and a stamp affixing impossible position on the bundling band, and the control unit obtains the stamp 5 affixing position with reference to the association between the kind of paper sheet and the stamp affixing position and the association between the kind of paper sheet and the stamp affixing impossible position. 10 Advantageous Effect of Invention [0017] According to the present invention, at the time of affixing a stamp to a bundling band, it is possible to prevent occurrence of partial missing of the affixed stamp. 15 Brief Description of Drawings [0018] [FIG. 1] FIG. 1 is an external perspective view of a paper sheet processing apparatus according to a first embodiment of the present invention. 20 [FIG. 2] FIG. 2 is a schematic configuration diagram of the inside of the paper sheet processing apparatus according to the first embodiment. [FIGS. 3] FIGS. 3 are diagrams for describing a reversing process of paper sheets. 25 [FIG. 4] FIG. 4 is a block configuration diagram of the paper sheet processing apparatus according to the first embodiment. [FIGS. 5] FIGS. 5 are diagrams for describing a bundling process of paper sheets. 30 [FIGS. 6] FIGS. 6 are diagrams for describing a stamp affixing process of paper sheets. [FIG. 7] FIG. 7 is a diagram illustrating an example of an association between the kind of paper sheet and a stamp affixing position. 35 [FIG. 8] FIG. 8 is a flow chart for describing a method of processing paper sheets according to the first embodiment. # [FIGS. 9] FIGS. 9 are diagrams for describing a reversing process of paper sheets. [FIG. 10] FIG. 10 is an external perspective view of a hopper unit. 5 [FIG. 11] FIG. 11 is an external perspective view of the hopper unit. [FIGS. 12] FIGS. 12 are schematic front views of the hopper unit. [FIGS. 13] FIGS. 13 are schematic front views of the hopper 10 unit. [FIG. 14] FIG. 14 is a schematic plan view of the hopper unit. Description of Embodiments 15 [0019] Hereinafter, embodiments of the present invention are described with reference to the drawings. [0020] (First Embodiment) FIG. 1 is an external perspective view of a paper sheet processing apparatus according to a first embodiment of the present invention, and 20 FIG. 2 is a schematic configuration diagram of the inside of the paper sheet processing apparatus. [0021] The paper sheet processing apparatus 1 includes a paper sheet sorting apparatus 2 and a paper sheet bundling apparatus 3. The paper sheet sorting apparatus 2 continuously 25 deposits paper sheets such as banknotes and gift certificates, sorts and stacks the deposited paper sheets in accordance with the kind of paper sheet, and counts the number of the deposited paper sheets for each kind. The paper sheet bundling apparatus 3 bundles paper sheets of a particular kind sorted by 30 the paper sheet sorting/stacking apparatus 2 in a unit of a predetermined number of sheets, for example, in a unit of 100 sheets. The paper sheet processing apparatus 1 further includes a display apparatus 4 configured to display various pieces of information such as counting results. 35 [0022] The paper sheet sorting apparatus 2 includes: a hopper unit 11 configured to put paper sheets into the ^p apparatus; a feeding unit 12 configured to feed the paper sheets put into the hopper unit 11, in a unit of one sheet; a transport unit 13, such as a transport belt, configured to transport the paper sheets fed by the feeding unit 12; a 5 recognition unit 14 configured to recognize the kind of each paper sheet transported by the transport unit 13; and a reversing unit 15 configured to reverse the paper sheets transported by the transport unit 13, on the basis of the recognition results obtained by the recognition unit 14, for 10 example, face/back information and orientation information. The reversing unit 15 includes: a first reversing unit 15A configured to reverse paper sheets transported in the short edge direction, in the long edge direction; and a second reversing unit 15B configured to reverse the paper sheets in the 15 long edge direction. The reversing of paper sheets is described later. [0023] The paper sheet sorting apparatus 2 further includes: four stackers 16A to 16D configured to sort and stack the paper sheets transported by the transport unit 13, in 20 accordance with the kind of paper sheet; and two reject units 17A and 17B configured to stack rejected paper sheets that are not stacked in the stackers 16A to 16D and are not transported to the paper sheet bundling apparatus 3. The stackers 16A to 16D and the reject units 17A and 17B are each provided with a 25 stacking wheel for stacking the paper sheets at a predetermined position in a stacking space, in a unit of one sheet. [0024] Note that the kind of paper sheet includes seven denominations of 5 euros, 10 euros, 20 euros, 50 euros, 100 euros, 200 euros, and 500 euros in the case of euro banknotes, 30 for example, and also includes: authenticity information for recognizing genuine notes and counterfeit notes; fitness information for recognizing fit notes and unfit notes; face/back information for recognizing face-up and face-down; orientation information for recognizing top and bottom; and the like. 35 Moreover, the kind of paper sheet includes kind-of-banknote information for recognizing the kind of banknote of new version ^B' notes, old version notes, and the like for each denomination, in the case of other currencies. [0025] Moreover, the paper sheet bundling apparatus 3 includes: a transport unit 13 configured to transport particular 5 paper sheets from a transport path 18 inside of the paper sheet sorting apparatus 2 into this apparatus; three stacking units 21 that are placed at three stages in the top-bottom direction in this apparatus and are configured to sort and stack the paper sheets; and a bundling unit 22 that is placed below the three 10 stacking units 21 and is configured to bundle, in the case where the number of paper sheets stacked in any of the stacking units 21 reaches a predetermined number of sheets, for example, 100 sheets, the 100 bundling target paper sheets using a bundling band. 15 [0026] The paper sheet bundling apparatus 3 further includes: a batch dispensing port 23 that is placed in the vicinity of the hopper unit 11 and is configured to dispense the paper sheets bundled by the bundling unit 22, that is, a batch of paper sheets to an operator; and a fraction returning port 24 that is 20 placed in the vicinity of the stacking units 21 and is configured to dispense fractional paper sheets that are still stacked in the stacking units 21 at the end of a transaction, to the operator. [0027] The paper sheet bundling apparatus 3 further includes: a before-bundling transport unit 25 configured to grip 25 and transport the paper sheets stacked in the stacking units 21 to the bundling unit 22 or the fraction returning port 24; and an after-bundling transport unit 26 configured to grip and transport the bundling target paper sheets in the bundling unit 22 and transport the batch of paper sheets bundled by the bundling 30 unit 22 to the batch dispensing port 23. [0028] The before-bundling transport unit 25 grips the long edge side of 100 bundling target paper sheets of the bundling target paper sheets stacked in the stacking units 21, and transports the 100 bundling target paper sheets onto a 35 bundling stage 22A in the bundling unit 22. At the end of a transaction, the before-bundling transport unit 25 grips stacked Jfk 8 fractional paper sheets the number of which is less than 100, of the bundling target paper sheets stacked in the stacking units 21, and transports the fractional paper sheets to the fraction returning port 24. Note that the bundling stage 22A in the 5 bundling unit 22 corresponds to a bundling work area of the bundling unit 22. [0029] Moreover, the after-bundling transport unit 26 includes: a grip/transport unit 27 configured to move and adjust the gripped bundling target paper sheets after the 10 before-bundling transport unit 25 transports the bundling target paper sheets onto the bundling stage 22A in the bundling unit 22, and grip and transport the batch of paper sheets bundled by the bundling unit 22; and a transport dispensing unit 28 configured to transport the batch of paper sheets gripped and 15 transported by the grip/transport unit 27, to the batch dispensing port 23. [0030] The grip/transport unit 27 grips the bundling target paper sheets at a work preparation position on the bundling stage 22A in the bundling unit 22, and then moves and 20 adjusts the bundling target paper sheets so as to match a bundling position of the bundling target paper sheets with a bundling work position on the bundling stage 22A. Note that, when the bundling target paper sheets are placed at this bundling work position, it becomes possible for the bundling 25 unit 22 to wind a bundling band around the bundling position of the bundling target paper sheets. [0031] When the bundling unit 22 completes the bundling work of the bundling target paper sheets while the grip/transport unit 27 grips the bundling target paper sheets at 30 the bundling work position on the bundling stage 22A, the grip/transport unit 27 transports the resultant batch of paper sheets into the transport dispensing unit 28. [0032] The transport dispensing unit 28 includes: a lift part 61 configured to transport the batch of paper sheets 35 gripped and transported by the grip/transport unit 27, to an upper portion of the paper sheet bundling apparatus 3; an ^ ejection mechanism 62 configured to eject the batch of paper sheets that is transported to the upper portion of the paper sheet bundling apparatus 3 by the lift part 61, toward the batch dispensing port 23 (toward the apparatus front side); and a 5 dispensing hold mechanism 63 configured to store therein the batch of paper sheets that is ejected toward the apparatus front side by the ejection mechanism 62 and dispense and hold the batch of paper sheets in the batch dispensing port 23. [0033] The paper sheet processing apparatus 1 further 10 includes the transport path 18 including: a transport path 18A that is connected to the hopper unit 11 and is placed at a position above the stackers 16A to 16D; a transport path 18B that is connected to the transport path 18A and is placed so as to bend back in the placement direction of the stackers 16A to 15 16D; and a transport path 18C that is connected to the transport path 18B and is connected to the stackers 16A to 16D and the stacking units 21. Note that it is assumed that the recognition unit 14 is placed on the transport path 18A and that the reversing unit is placed on the transport path 18B. 20 Moreover, the transport path 18B is configured as a detachable unit connected to the transport path 18A and the transport path 18C of the paper sheet processing apparatus 1. [0034] Moreover, detection sensors 19 are respectively placed in branched portions, joined portions, coupling portions 25 between the apparatuses, and the like on the transport path 18, and respectively detect the entry and pass of each transported banknote in these portions. [0035] A reject unit 20 is placed at the last end of the transport path 18C. 30 [0036] Moreover, diverters 13A are respectively placed in the branched portions on the transport path 18 in the paper sheet processing apparatus 1, and distribute the transported paper sheets transported on the transport path 18, into the stackers 16A to 16D, the stacking units 21, and the reject units 35 17A, 17B, and 20. When each detection sensor 19 detects the entry of the leading end of a transported paper sheet, a 0 10 solenoid (not illustrated) is driven, whereby each diverter 13A distributes the transported paper sheet. [0037] The first reversing unit 15A is capable of reversing paper sheets in the short edge direction (about an axis 5 perpendicular to the transport direction of the paper sheets), on the basis of the orientation information and the face/back information that are the kind of paper sheet recognized by the recognition unit 14. [0038] The second reversing unit 15B is capable of 10 reversing paper sheets in the long edge direction (about an axis in the transport direction thereof), on the basis of the orientation information and the face/back information that are the kind of paper sheet recognized by the recognition unit 14. The diverter 13A provided before the second reversing unit 15B 15 distributes the paper sheets into a reversing route or a non-reversing route. [0039] The reversing route includes: a reversing member 15C that extends in the transport direction of the paper sheets and has a curved surface; a transport belt (not illustrated) that 20 is stretched obliquely to the long edge direction of the reversing member 15A so as to partially follow the curved surface of the reversing member 15C; a drive motor (not illustrated) configured to drive the transport belt; and a guide part (not illustrated) configured to slidingly guide a surface of each paper 25 sheet that is transported in the long edge direction of the reversing member 15C while being sandwiched between the transport belt and the reversing member 15C and being wound around the curved surface of the reversing member 15A. [0040] In the state where the transport belt is driven by 30 the drive motor, if a paper sheet is transported to the second reversing unit 15B, the paper sheet is sandwiched between the transport belt and the reversing member 15C, and moves in the transport direction while following movement of the transport belt. At this time, because the transport belt is stretched along 35 the curved surface of the reversing member 15C obliquely to the long edge direction of the reversing member 15C, the paper sheet is transported while being wound around the curved surface, and is reversed while turning on its own axis. Moreover, at the time of reversing the paper sheet, the surface of the paper sheet is slidingly guided by the guide part, and this 5 enables the paper sheet to be reliably reversed while the movement of the paper sheet is restricted during its transport. [0041] FIGS. 3 are explanatory diagrams plainly illustrating a reversing process by the reversing unit 15. [0042] In the case where the face/back information and 10 the orientation information obtained by the recognition unit 14 indicate A side (face-up) and upward orientation (portrait-up) as illustrated in FIG. 3(a), the first reversing unit 15A and the second reversing unit 15B do not perform reversing, and transport the transported paper sheet to the third transport 15 path 18C as it is. [0043] Moreover, in the case where the face/back information and the orientation information obtained by the recognition unit 14 indicate B side (face-down) and downward orientation (portrait-down) as illustrated in FIG. 3(b), the first 20 reversing unit 15A reverses the transported paper sheet in the long edge direction. [0044] Moreover, in the case where the face/back information and the orientation information obtained by the recognition unit 14 indicate the B side and the upward 25 orientation as illustrated in FIG. 3(c), the second reversing unit 15B reverses the transported paper sheet in the short edge direction. [0045] Moreover, in the case where the face/back information and the orientation information obtained by the 30 recognition unit 14 indicate the A side and the downward orientation as illustrated in FIG. 3(d), the first reversing unit 15A reverses the transported paper sheet in the long edge direction, and then, the second reversing unit 15B reverses the transported paper sheet in the short edge direction. 35 [0046] In this way, the first reversing unit 15A and the second reversing unit 15B enable the paper sheet to be 0 12 reversed so as to face a particular side of any one of the face-up and the face-down and face a particular orientation of any one of the upward orientation and the downward orientation. 5 [0047] Moreover, for example, three cut-out parts are formed in a rear wall part of each stacking unit 21, and enable a hand part 41 (see FIG. 2) of the before-bundling transport unit 25 to enter a stacking space 31. A lower portion of the rear wall part has such an openable shutter configuration that 10 enables the hand part 41 that has entered through the cut-out parts to grip the long edge side of the bundling target paper sheets in the stacking space 31 and to take the gripped bundling target paper sheets out of the stacking space 31. [0048] Moreover, as illustrated in FIG. 2, the 15 before-bundling transport unit 25 includes: a transport device 42 including the hand part 41 configured to collectively grip the long edge side of the bundling target paper sheets stacked in the stacking units 21; a horizontal movement mechanism 43 configured to move the transport device 42 in the front-back 20 direction (horizontal direction); and a vertical movement mechanism 44 configured to move the transport device 42 in the top-bottom direction (vertical direction). [0049] The vertical movement mechanism 44 includes: a guide shaft 44A that is vertically provided so as to extend from 25 the lower end to the upper end of the paper sheet bundling apparatus 3; and a drive belt 44B configured to move the transport device 42 upward and downward while guiding the transport device 42 by means of the guide shaft 44A. [0050] The transport device 42 in the before-bundling 30 transport unit 25 includes the hand part 41 that is protrusible and retractable by a drive belt 43A in the horizontal movement mechanism 43. In the hand part 41, for example, three grip nails of its upper hand and three grip nails of its lower hand are opposed to each other, and the grip nails grip therebetween the 35 long edge side of the bundling target banknotes stacked in the stacking units 21. Note that the lower hand is fixed, whereas 13 the upper hand is movable upward and downward by the drive belt. [0051] The transport device 42 grips the long edge side of the bundling target paper sheets between the respective grip 5 nails of the upper hand and the lower hand, and transports the gripped bundling target paper sheets to the work preparation position on the bundling stage 22A in the bundling unit 22 or the fraction returning port 24. [0052] In the state where the transport device 42 grips 10 the long edge side of the 100 bundling target paper sheets, the before-bundling transport unit 25 transports and places the bundling target paper sheets onto the work preparation position on the bundling stage 22A in the bundling unit 22. [0053] In the state where the transport device 42 grips 15 the long edge side of the 100 bundling target paper sheets, the grip/transport unit 27 grips the short edge side of the 100 bundling target paper sheets at the work preparation position on the bundling stage 22A in the bundling unit 22. Note that, in response to such an operation of gripping the short edge side 20 of the bundling target paper sheets by the grip/transport unit 27, the transport device 42 in the before-bundling transport unit 25 releases the grip of the long edge side of the bundling target paper sheets gripped by the transport device 42, and moves to a standby position thereof. 25 [0054] The grip/transport unit 27 includes a grip part 27A having upper and lower hands configured to collectively grip the short edge side of the paper sheets. The grip part 27A moves and adjusts the bundling target paper sheets in the long edge direction of the bundling target paper sheets from the work 30 preparation position so as to match the bundling position of the bundling target paper sheets with the bundling work position on the bundling stage 22A. [0055] In the state where the grip part 27A of the grip/transport unit 27 grips the short edge side of the bundling 35 target paper sheets, the grip part 27A matches the bundling position of the bundling target paper sheets with the bundling t} 14 work position on the bundling stage 22A, and the bundling unit 22 then executes bundling work for winding a bundling band around the bundling position of the bundling target paper sheets. 5 [0056] Moreover, the bundling unit 22 includes: a bundling band reel 501 configured to house a bundling band therein; a bundling band fixing part 502 configured to fix the leading end of the bundling band pulled out of the bundling band reel 501 to the bundling position of the bundling target 10 paper sheets, in the state where the bundling position of the bundling target paper sheets is matched with the bundling work position; a whirling arm 503 configured to pull the bundling band fixed to the bundling target paper sheets out of the bundling band reel 501 and wind the pulled-out bundling band 15 around the bundling position of the bundling target paper sheets; a cutter part 504 configured to cut the other end of the bundling band wound around the bundling position of the bundling target paper sheets; and a heater part 505 configured to thermally weld the other end of the bundling band cut by the 20 cutter part 504. The bundling unit 22 bundles the bundling target paper sheets using the bundling band, to thereby make the batch of paper sheets. [0057] Moreover, when the bundling unit 22 completes the bundling operation of the bundling target paper sheets, as 25 illustrated in FIG. 2, the grip part 27A of the grip/transport unit 27 returns the resultant batch of paper sheets to the work preparation position, and transports the batch of paper sheets into the lift part 61 in the transport dispensing unit 28 through a paper sheet batch transporting path. Note that the 30 grip/transport unit 27 releases the grip of the short edge side of the batch of paper sheets after transporting the batch of paper sheets into the lift part 61. [0058] Moreover, as illustrated in FIG. 2, a stamp affixing unit 71 is driven above the paper sheet batch transporting path 35 through which the batch of paper sheets is transported by the grip/transport unit 27, and the stamp affixing unit 71 affixes a 15 stamp to the bundling band on the upper surface of the batch of paper sheets. A stamp driving mechanism 72 is placed to enable storage of the stamp affixing unit 71. [0059] When the bundling unit 22 completes the making 5 of the batch of paper sheets, the grip/transport unit 27 moves and places the batch of paper sheets to a standby position thereof below the stamp affixing unit 71. At this standby position, a position on the bundling band at which a stamp is desired to be affixed is located below the stamp affixing unit 71, 10 and a stamp affixing surface of the stamp affixing unit 71 is placed parallel to the bundling band on the upper surface of the batch of paper sheets. [0060] In the state where the batch of paper sheets is placed at this standby position, if the stamp affixing unit 71 is 15 moved downward, the stamp affixing surface of the stamp affixing unit 71 comes into contact with the bundling band of the batch of paper sheets, whereby a stamp is affixed to the bundling band on the upper surface of the batch of paper sheets. 20 [0061] Upon completion of the stamp affixing, the stamp driving mechanism 72 moves the stamp affixing unit 71 upward from the banknote batch transporting path, and stores the stamp affixing unit 71 therein. [0062] The grip/transport unit 27 transports the batch of 25 paper sheets to which the stamp is affixed, into the lift part 61 in the transport dispensing unit 28. [0063] The lift part 61 transports the batch of paper sheets gripped and transported by the grip part 27A of the grip/transport unit 27, to the ejection mechanism 62 in the 30 upper portion of the paper sheet bundling apparatus 3. [0064] The ejection mechanism 62 ejects and transports the batch of paper sheets that is transported to the upper portion of the paper sheet bundling apparatus 3 by the lift part 61, to the dispensing hold mechanism 63 on the batch 35 dispensing port 23 side (on the apparatus front side). [0065] The dispensing hold mechanism 63 includes: a 16 paper sheet batch storing part 63A configured to store therein the batch of paper sheets ejected and transported by the ejection mechanism 62; and a paper sheet batch stage 63B on which the batch of paper sheets stored in the paper sheet batch 5 storing part 63A is set. The dispensing hold mechanism 63 adjusts the height of the paper sheet batch stage 63B such that the batch of paper sheets ejected and transported by the ejection mechanism 62 is storable on top of the uppermost batch of paper sheets on the paper sheet batch stage 63B. 10 [0066] FIG. 4 is a block diagram illustrating a schematic configuration of the inside of the paper sheet processing apparatus 1. [0067] In addition to the recognition unit 14, the paper sheet processing apparatus 1 illustrated in FIG. 4 includes: a 15 stacker-side mechanism 110 inside of the paper sheet sorting apparatus 2; a bundling-side mechanism 120 inside of the paper sheet bundling apparatus 3; a stamp-side mechanism 130 inside of the paper sheet bundling apparatus 3; an operation unit 140 configured to receive various commands; a display controlling 20 unit 150 configured to display-control the display apparatus 4; a drive controlling unit 160 configured to drive-control the stacker-side mechanism 110, the bundling-side mechanism 120, and the stamp-side mechanism 130; a control unit 170 configured to control the entire paper sheet processing 25 apparatus 1; and a memory unit 180 configured to store therein an association between the kind of paper sheet and a stamp affixing position on the bundling band of the batch of paper sheets. [0068] The stacker-side mechanism 110 includes the 30 feeding unit 12, the transport unit 13, the reversing unit 15, and the detection sensors 19 and the diverters 13A inside of the paper sheet sorting apparatus 2. [0069^ The bundling-side mechanism 120 includes the detection sensors 19, the transport unit 13, the diverters 13A, 35 the bundling unit 22, the before-bundling transport unit 25, and the after-bundling transport unit 26 inside of the paper sheet 17 bundling apparatus 3. Note that the after-bundling transport unit 26 includes the grip/transport unit 27 and the transport dispensing unit 28. [0070] The stamp-side mechanism 130 includes the stamp 5 affixing unit 71 and the stamp driving mechanism 72. [0071] The control unit 170 sets, for example, the kind of the paper sheets stacked in each of the stackers 16A to 16D, the reject units 17A, 17B, and 20, and the stacking units 21. Note that the control unit 170 sets, for example, the 5-euro 10 banknote to the stacker 16A, the 50-euro banknote to the stacker 16B, the 100-euro banknote to the stacker 16C, the 200-euro banknote to the stacker 16D, and the 500-euro banknote to the reject unit 17A, and the control unit 170 further sets, as initial settings, the 10-euro banknote to the stacking 15 unit 21A, the 20-euro banknote to the stacking unit 21B, and the stacking unit 21C as a backup. Note that the reject unit 17A is also usable as a stacker in which rare banknotes such as the 500-euro banknote are stacked. [0072] Moreover, on the basis of detection results by the 20 detection sensor 19, the control unit 170 is capable of recognizing a trouble such as a banknote jam on the transport path. [0073] r^oreover, the control unit 170 includes: a number-of-bundled-sheets judging unit 171 configured to judge 25 whether or not the number of bundling target paper sheets P stacked in any of the stacking units 21A to 21C reaches 100; a kind acquiring unit 172 configured to acquire the kind of the bundling target paper sheets P the number of which reaches 100, in the case where the number-of-bundled-sheets judging 30 unit 171 judges that the number of the bundling target paper sheets P stacked in any of the stacking units 21A to 21C reaches 100; a stamp affixing position determining unit 174 configured to determine a stamp affixing position in accordance with the kind of the bundling target paper sheets P; a bundling 35 position setting unit 175 configured to obtain and set a bundling position from the stamp affixing position determined by the ^ 18 stamp affixing position determining unit 174; and a standby position setting unit 178 configured to obtain and set such a standby position of the batch of paper sheets that a stamp is affixed to the stamp affixing position determined by the stamp 5 affixing position determining unit 174. [0074] When the l