JPH10114171A - Page feed mechanism for booklet medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the page feed at a targeted page by providing an arm having a page feed roller at the tip part above the conveyance path of a booklet medium to be located at a reset position when the medium is moved, guided by the upper conveyance path, and a floating guide below the conveyance path. SOLUTION: Page feed rollers 3a, 3b are provided above the conveyance path of a booklet medium (bankbook) 2, with the circumference of the page feed rollers 3a, 3b comprising a high friction part 4 and a low friction part 5. The page feed rollers 3a, 3b are supported by arms 6a, 6b, with the arms 6a, 6b driven by a driving means roundly. A pressing means 7 is provided below the conveyance path at a position corresponding to the page feed rollers 3a, 3b. When page feed processing is not conducted, the arms 6a, 6b and the pressing means 7 are at the reset position. In the page feed processing, the bankbook 2 is set on the pressing means 7 so that the pressing force can be obtained by pressing the bankbook 2 to the pressing means 7 with the page feed rollers 3a, 3b by the round movement of the arms 6a, 6b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic page break mechanism in a passbook handling apparatus used in a financial institution such as a bank, and more particularly, to a booklet form capable of reliably performing a page break only for a target page to be changed. The present invention relates to a medium page break mechanism.

[0002]

2. Description of the Related Art In a conventional automatic page break mechanism, a part of a page break roller rotatably supported by an arm is formed by a friction member, and the arm is rotatably mounted and formed on the arm. A locking portion that locks the leading end of the page that has been turned up by the rotation of the page feed roller is disposed on the opposite side of the page feed roller with respect to the transport path of the booklet-shaped medium, and is pressed by the transport path side. In this configuration, a pressed member that is inclined obliquely is provided.

[0003]

However, even with the automatic page break mechanism having the above-described structure, only the target page to be broken is changed, and the other pages, that is, the target page and the (back) cover It was difficult to ensure that the page between them was not broken.

According to the present invention, in the page break processing, only a page to be changed, that is, a page directly contacting a page break roller 3, which will be described later, that is, a middle sheet 2 (a) is changed, and other pages are changed. That is, an object of the present invention is to provide a page-break mechanism for a booklet-shaped medium which does not break pages between the inner sheet 2 (a) and the (back) cover, that is, the inner sheets 2 (b) to 2 (f).

[0005]

Therefore, according to the present invention, there is provided a page feed roller having a high friction portion and a low friction portion at the leading end thereof on the upper side of a booklet-shaped medium conveyance path, thereby forming an arc movement. Do
When the medium travels, the arm is positioned at a reset position, and the upper transport path serves as a guide.The lower position of the transport path guide serves as a reset position below the transport path. And a floating guide serving as a pressing means for generating a pressing force when pressed by the page break roller of the section.

According to the present invention having the above-described structure, it is possible to change the page only for the target page to be changed, and not to change the other pages, that is, the pages between the target page and the (back) cover. It can be performed reliably.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment according to the present invention will be described below with reference to the drawings. Components common to the drawings are denoted by the same reference numerals.

FIG. 1 is a block diagram showing a first embodiment of the present invention. Reference numeral 1 denotes a conveyance path roller which is rotated by driving means (not shown) and conveys a booklet medium 2 (hereinafter referred to as a passbook). On the upper side of the transport path of the passbook 2, page break rollers 3 (a) and 3
(B) is provided, and the page break rollers 3 (a), 3 (b)
Is composed of a high friction portion 4 made of rubber or the like and a low friction portion 5 made of a polyacetal surface of plastic or the like. The page break rollers 3 (a) and 3 (b) are supported by arms 6 (a) and 6 (b).
(A) and 6 (b) perform an arc motion by a driving means (not shown). Even when the arms 6 (a) and 6 (b) move in an arc, the page break rollers 3 (a) and 3 (b) are rotated at an arbitrary position on the arc by a driving means (not shown). Arm 6
(A), 6 (b) and page break rollers 3 (a), 3 (b)
As shown in FIG. 1, one set is provided, and two sets are provided to face each other on the upper side of the transport path.

The two page break rollers 3 (a), 3 (b)
The pressing means 7 is located at a position below the transport path of the passbook 2 corresponding to
Is provided. The two sets of arms 6 (a), 6
(B) and the pressing means 7 are in the reset position as shown in FIG. 1 when not performing a page break process, and serve as a guide for the transport path. The pressing means 7 is set by a reset spring 8. When the page break processing is required, the passbook 2 is set on the pressing means 7 and the arm 6
(A) and 6 (b) are made to move in an arc, and the page break roller 3 is moved.
The structure is such that a pressing force can be obtained by pressing the passbook 2 against the pressing means 7 in (a) and 3 (b).
During the page break, the passbook 2 is held by the transport roller 1.

FIG. 2 is a plan view of the first embodiment of the present invention. In the configuration of FIG.

Next, an operation process of the page break mechanism according to the first embodiment of the present invention will be described with reference to FIG. 1 and FIGS.

First, in order to set the passbook 2 at a page break position, the apparatus is reset as shown in FIG. That is, the two sets of arms 6 (a) and 6 (b) are set at the home positions forming the upper conveyance path. Arm 6
(A), page break rollers 3 (a), 3 (b) supported by 6 (b)
(B), the high friction portion 4 is directed to the upper side of the transport path, which is a direction other than the transport path side, and the low friction portion 5 is directed to the transport path side so as not to obstruct the travel of the passbook 2. Passbook 2 in that state
Is set to the position shown in FIG.

Next, as shown in FIG. 3, the arm 6 (a) is pressed onto the pressing means 7 of the passbook 2. Arm 6
(B) is moved in the direction away from the transport path (arrow A). In this embodiment, the arm 6 (a) is moved by 23.5 ° from the home position in the direction of pressing the passbook 2 (arrow B). At this time, the pressing means 7 rotates about the rotation fulcrum 9 as a fulcrum, and applies the pressing force of the reset spring 8 to the contact surface between the page break roller 3 (a) and the passbook 2 in the direction in which the reset is to be performed.

Next, as shown in FIG. 4, the page break roller 3 (a) on the arm 6 (a) is rotated. The rotation direction is counterclockwise as indicated by arrow C in FIG.

The page feed roller 3 (a) has a phase detecting means (not shown) for rotating the page feed roller 3 (a) to the position shown in FIG. The arcuate shape of the inner paper 2 (a) to be wound of the passbook 2 created in FIG. 5 is such that when the high friction portion 4 of the page break roller 3 (a) is replaced with the low friction portion 5, the inner paper 2 (a) ) Is an arc having a size of a level that returns to the plane by itself.

Next, the arm 6 is moved to the position shown in FIG.
(A) and 6 (b) are made to move in an arc. Note that the position shown in FIG. 6 is the reset position of the arm 6 (a).

According to the present invention, in the page break processing, as described above, the target page to be broken, that is, the page directly contacting the page break roller 3, that is, only the inner sheet 2 (a) is broken, and the other pages, That is, the inner paper 2 (a) and the (back) cover 2 (e)
The purpose is to provide a mechanism that does not cause a page break between pages nd), that is, the inner sheets 2 (b) to 2 (f).

In the conventional example, as described above, when the page break roller 3 in FIG. 4 rotates, the page break roller 3 (a) is rotated at a stroke without stopping at the position shown in FIG. Was.
By performing such an operation, a page other than the target page, that is, the page 2 (a), up to the page 2 (b) can be changed at the same time, or the target page, that is, the target page 2 (b) can be changed.
(A) Even the page was not changed.

In order to solve the problem, according to the present invention, the pagination roller 3 (a) is not rotated at a stroke at the position shown in FIG. 6 is moved in an arc (however, the arc movement of the arm 6 causes the page feed roller 3 to rotate in conjunction therewith). The process of the circular motion is a means for solving the problem of the conventional example.

Hereinafter, a mechanism for solving the above problem will be described with reference to FIG.

FIG. 8 is an enlarged view of a state where the passbook 2 is in contact with the page feed roller 3 (a) in FIG. 8, the arrow A indicates the direction in which the pressing means 7 applies a pressing force, the arrow B indicates the direction of the circular motion of the arm 6 (a), and the arrow C
Is the page break roller 3 due to the arc movement of the arm 6 (a).
(A) rotates in conjunction with the arm 6 (a), and the arrow D indicates the high friction portion 4 of the page feed roller 3 (a) due to the inner shape of the inner paper 2 (a) to be wound. And middle paper 2
(A) is the direction of the force pressing itself, and arrow E is the direction in which the inner sheets 2 (b) to 2 (f) that are not going to be rolled tend to stretch in the direction of their own waist (if the paper Arrow F indicates the inner paper 2 to be rolled.
(A) shows the direction in which it moves as a result.

The inner sheet 2 (a) to be wound is held at one end by the transport roller 1, and the end on the winding side is formed in an arc shape as described above, so that the middle sheet 2 (a) is in contact with the high friction portion 4. Getting the tension. When the arm 6 (a) rotates in the direction of the arrow C in conjunction with the arc movement in the direction of the arrow B, the page break roller 3 (a) rotates in the direction of the arrow C, and when the inner sheet 2 (a) is moving in the direction of the arrow F, it is turned. The blank sheets 2 (b) to 2 (f) that do not
As a result of the arc movement in the direction of arrow B in (a), the pressing force of the pressing means 7 decreases, so that the possibility of starting to move in the turning direction gradually decreases. Further, the arrow B of the arm 6 (a)
When the circular motion is performed in the direction, the page break roller 3 (a) rotates in conjunction with the rotation, and the portion in contact with the surface of the inner sheet 2 (b) that does not attempt to be wound is replaced with the low friction portion 5.

In the low friction portion 5, the middle papers 2 (b) to 2 (f)
Cannot be moved in the direction of arrow F. Instead, Nakagami 2
In (b) to (f), a force acts in the direction of arrow E so as to extend in the direction of the waist of the user. In other words, in the state shown in FIG. 7, since the middle paper 2 (a) and the middle papers 2 (b) to 2 (f) exert forces in different directions, "page break" and "no page break" are separated. Can be ensured.

When the rotation of the page feed roller 3 is stopped during the arc movement of the arm 6 (a), the direction of the force moving toward the inner sheet 2 (a) is directed upward, such as "page break" and "page break". The distinction of "no" is clearer.

When the page break roller 3 (a) is rotated half a turn in the state of FIG. 6 after the arm 6 has been separated by the arc movement shown in FIG. 7, the inner sheet 2 (a) is flipped and the state of FIG. Becomes Thereafter, the passbook 2 is transported to the position shown in FIG. 10, the inner sheet 2 (a) is fallen, and the page feed operation ends.

Next, a second embodiment of the present invention will be described with reference to the drawings. Components common to the drawings are denoted by the same reference numerals. The plan view is the same as that of the first embodiment (FIG. 2).

FIG. 11 is a block diagram showing a second embodiment of the present invention.

1 (a) UP, 1 (b) UP, 1 (a) L
OW, 1 (b) LOW is a transport roller, and the transport roller 1
(A) UP, 1 (a) LOW, transport roller 1 (b) U
P and 1 (b) LOW are provided to face each other, and the transport rollers 1 (a) UP and 1 (b) UP are on the upper side of the transport path, and the transport rollers 1 (a) LOW and 1 (b) LOW are on the transport path. On the lower side, the bankbook 2 is rotated by a driving unit (not shown) to convey the passbook 2. On the upper side of the passbook of the passbook 2, page break rollers 3 (a), 3
(B) is provided, and the page break rollers 3 (a), 3 (b)
Is composed of a high friction portion 4 made of rubber or the like and a low friction portion 5 made of a polyacetal surface such as plastic. The page break rollers 3 (a) and 3 (b) are supported by arms 6 (a) and 6 (b).
(A) and 6 (b) perform an arc motion by driving means (not shown).

Independently of the arc movement of the arms 6 (a) and 6 (b), the page break rollers 3 (a) and 3 (b) are rotated by an unillustrated driving means at an arbitrary position on the arc. Can be. However, when the arms 6 (a) and 6 (b) make a circular motion, unless the driving force of the rotary motion is applied to the page break rollers 3 (a) and 3 (b), they rotate interlockingly due to planetary motion.
The arms 6 (a) and 6 (b) and the page break rollers 3 (a) and 3 (a)
11B, one set is provided as shown in FIG. 11, and two sets are provided on the upper side of the transport path so as to face each other.

The arms 6 (a) and 6 (b) are integrated with the page feed rollers 3 (a) and 3 (b), respectively, to form the transport rollers 1 (a) UP and 1 (b) UP. Also functions as a guide for the upper transport path between the two.

The two page break rollers 3 (a) and 3 (b)
The pressing means 7 is located at a position below the transport path of the passbook 2 corresponding to
Is provided. The two sets of arms 6 (a), 6
FIG. 11B shows the state in which the pressing means 7 and FIG.
And is a part of the guide of the lower conveyance path. The pressing means 7 is set by a reset spring 8. When the page break processing is required, the passbook 2 is pressed against the pressing means 7 to obtain a pressing force. During the page break, the passbook 2 has transport rollers 1 (a) UP, 1 (a) LO
W, 1 (b) UP, 1 (b) LOW.

Next, an operation process of the page feed mechanism according to the second embodiment of the present invention will be described with reference to FIG. 11 and FIGS.

First, in order to set the passbook 2 at a page break position, the apparatus is reset as shown in FIG. That is, the two sets of arms 6 (a) and 6 (b) are set at the home positions forming the upper conveyance path. Arm 6
(A), page break rollers 3 (a), 3 (b) supported by 6 (b)
(B) is directed to the upper side of the transport path, which is a direction other than the transport path side, so that the high friction portion 4 does not obstruct the travel of the passbook 2.
With the low friction portion 5 facing the transport path side, the arms 6 (a), 6
Together with (b), it serves as a guide for the transport path. In this state, the passbook 2 is set at the position shown in FIG.

Next, as shown in FIG.
The passbook 2 is pressed on the pressing means 7. Arm 6
(B) is moved in the direction away from the transport path (arrow A). In this embodiment, the arm 6 (a) is moved by 23.5 ° from the home position in the direction of pressing the passbook 2 (arrow B). At this time, the pressing means 7 rotates about the rotation fulcrum 9 as a fulcrum, and applies the pressing force of the reset spring 8 to the contact surface between the page break roller 3 (a) and the passbook 2 in the direction in which the reset is to be performed.

Next, as shown in FIG.
The upper page feed roller 3 (a) is rotated. Fig. 1
3 is a counterclockwise direction indicated by an arrow C.

The page feed roller 3 (a) has a phase detecting means (not shown), which rotates the page feed roller 3 (a) to the position shown in FIG. The arc shape of the inner sheet 2 (a) to be turned of the passbook 2 created in FIG. 14 is such that the high friction portion 4 of the page break roller 3 (a) is
After the replacement, the arc of the inner sheet 2 (a) is set to the level of the level of returning to the plane by itself.

Next, the arm 6 (a) is circularly moved in the direction of arrow D in FIG. 15 to the position shown in FIG. The position shown in FIG. 15 is the reset position of the arm 6 (a).

In the conventional example, as described above, FIG.
When the arm 6 (a) is caused to perform an arc motion in the direction of arrow D in the operation process of FIG. 15, the page break roller 3 (a) is interlockedly rotated in the same direction as the arm 6 (a) according to the planetary motion, or Then, power is forcibly applied to the page break roller 3 (a) in the direction opposite to the planetary motion at the same speed as the rotational motion of the arm 6 (a) to stop the rotational motion due to the planetary motion.

For this reason, in the process of turning the target page, that is, the inner sheet 2 (a), the high friction portion 4 of the page feed roller 3 (a) comes into contact with a page other than the inner sheet 2 (a), and Friction part 4
Pages other than the inner sheet 2 (a) that has come into contact with the document have been changed together.

In order to solve the problem, according to the present invention, the pagination roller 3 (a) is interlockedly rotated in the same direction as the arm 6 (a) according to the planetary motion, or the arm is forcibly rotated in the direction opposite to the planetary motion. 6 (a) without stopping rotation by giving power at the same speed as the rotational motion,
The page break 3 (a) is forcibly rotated in the direction opposite to that of the arm 6 (a). The pagination roller 3 (a) is connected to the arm 6
The forced rotation in the direction opposite to the direction (a) is a means for solving the above problem.

Hereinafter, a mechanism for solving the above-mentioned problem will be described with reference to FIG. 16 showing the movement of the arm 6 (a) and FIG. 17 showing the detail thereof.

FIG. 17 is an enlarged view of a state where the passbook 2 is in contact with the page feed roller (a) of FIG.

Referring to the arrows in FIG. 17, the arrow P indicates the direction in which the pressing means 7 applies the pressing force, and the arrow Q indicates the direction of the arm 6.
The arrow R indicates the direction of the circular motion in FIG. 7A, the direction in which the page break roller 3 (a) is turned to solve the above-described problem, and the arrow S indicates the arc of the inner sheet 2 (a) to be turned. As a result, the direction of the force of the inner paper 2 (a) pressing itself against the high friction portion 4 of the page feed roller 3 (a), and the arrow T indicates the inner paper 2 (b) to the inner paper 2 (f) is the direction in which the paper is going to extend in the direction of its own waist (the direction in which the paper is going to grow flat), and the arrow U is the direction in which the inner paper 2 (a) to be turned is moving as a result. Is shown.

The inner sheet 2 (a) to be wound is held at one end by the transport rollers 1 (b) UP and 1 (b) LOW, and the end on the side to be wound has an arc shape as described above. ,
A tension is obtained with the high friction portion 4. From this state, the arm 6 (a) is caused to move in an arc in the direction of arrow Q.
(A) is rotated in the direction of arrow R. Arm 6
(A) Arc movement in the direction of arrow Q, page break roller 3 (a)
The intermediate paper 2 (a) moves in the direction of arrow U, and the inner papers (b) to 2 (f) that do not attempt to be turned up are the arms 6 (a). As a result of the arc movement in the direction of arrow Q), the pressing force of the pressing means 7 is reduced, so that the possibility of starting to move in the turning direction is gradually reduced.

Particularly, in this embodiment, the arm 6
During the arc motion of (a), since the page break roller 3 (a) is rotated at an appropriate speed in the direction opposite to the interlocking motion, only the inner sheet (a) is moved in the direction of the arrow U to turn the page. The middle paper 2 (b) to the middle paper 2 (f) that are not inserted have a direction in which the user intends to extend in the direction of their own waist (a direction in which the paper tends to expand flat). A force can be applied via a). Here, the page-breaking roller 3 (a) is used as a page-breaking roller for the inner sheet 2 (a) to be turned up, and is applied to the inner sheets 2 (b) to 2 (f) not to be turned up. On the other hand, it functions as a reverse roller in the paper feeding mechanism.

The direction of the arrow T opposite to the direction in which the page break roller 3 (a) is to be turned over the inner sheets 2 (b) to 2 (f).
, The middle paper 2 (b) to the middle paper 2 (f) help the behavior of trying to stretch in the direction of their own waist, and the force is applied in a direction different from that of the middle paper 2 (a). The work is more certain, and the separation of "page break" and "no page break" can be made more reliable.

As shown in FIG. 15 after the arm 6 (a) is separated by the arc motion process shown in FIG. 16, the passbook 2 does not obtain the pressing force from the pressing means 7 and the page-breaking roller 3 (a)
Is rotated halfway, the inner paper 2 (a) is flipped off, and FIG.
8 will be obtained. Thereafter, the passbook 2 is transported to the position shown in FIG. 19, the inner sheet 2 (a) is fallen down, and the page feed operation ends.

As described above, during the page break operation,
A force is applied in the direction in which only one page is turned by direct contact, and a force is applied to the other pages that are not to be turned, in the same direction as the direction in which the inner sheet itself is to be stretched in the waist direction. It is possible to realize a mechanism capable of reliably changing the page only on the target page and not changing the other page.

Next, a third embodiment of the present invention will be described. The configuration is the same as that of the second embodiment.

In the description with reference to FIG. 17, the arm 6 (a)
Page break roller 3 only during arc movement in the direction of arrow Q
(A) is rotated in the direction of arrow R. In the third embodiment, the arm 6 (b) is circularly moved in the direction of arrow Q as needed, and then the page break roller 3 (a). Only the rotational movement is performed in the direction of arrow R.

The other operations are the same as in the second embodiment.

Thus, the inner sheets 2 (b) to 2 (f), which are stronger than the second embodiment and are not to be rolled, are stretched in the same direction as the direction in which the inner sheets tend to extend in the waist direction. Can give power.

[0053]

As described above, according to the present invention, it is possible to realize a mechanism capable of changing the page only for the target page to be changed, and ensuring that the other pages are not changed. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 8 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 9 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 10 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 11 is a configuration diagram showing a second embodiment of the present invention.

FIG. 12 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 13 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 14 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 15 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 16 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 17 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 18 is an explanatory diagram showing an operation process of the embodiment of the present invention.

FIG. 19 is an explanatory diagram showing an operation process of the embodiment of the present invention.

[Explanation of symbols]

1 transport roller 1 (a) UP, 1 (a) LOW, 1 (b) UP, 1 (b) LOW
Conveyance roller 2 Passbook 3 Page break roller 4 High friction part 5 Low friction part 6 Arm 7 Pressing means 8 Reset spring 9 Rotation fulcrum

Claims (9)

[Claims] 1. A paper feed roller having a high-friction portion and a low-friction portion at its tip at the top of the booklet-shaped medium conveyance path, performs an arc movement, and is positioned at a reset position when the medium is conveyed. The upper conveyance path has an arm serving as a guide, and a lower position serving as a conveyance path guide is set as a reset position below the conveyance path, and the arm is moved in an arc to be pressed by the leading end of the page break roller. A page break mechanism for a booklet medium, wherein a floating guide serving as a pressing means for generating a pressing force is formed. 2. After resetting the arm and the floating guide, the medium position is set, and the arm is moved in an arc,
2. The page break mechanism for a booklet medium according to claim 1, wherein the medium is pressed against the floating guide by a low friction portion of the page break roller. 3. The booklet-shaped medium according to claim 1, wherein the page feed roller is rotated until the surface where the medium comes into contact with the medium changes from a low friction portion to a high friction portion and becomes half the circumference of the high friction portion. Page break mechanism. 4. The page breaking mechanism for a booklet medium according to claim 1, wherein the arm is moved in an arc to a position where the pressing force of the floating guide disappears. 5. The page breaking mechanism for a booklet medium according to claim 4, wherein, during the arc movement of the arm, the page break roller is rotated in the same direction as the direction of the arc movement of the arm. 6. The page breaking mechanism for a booklet medium according to claim 5, wherein the operation of rotating the page breaking roller in the same direction as the circular movement of the arm is stopped during the arc movement of the arm. 7. The booklet-type page-breaking mechanism according to claim 1, wherein the page-breaking roller is rotated to convey the medium in a direction in which the page-changed side becomes the top. 8. A paper feed roller having a high-friction portion and a low-friction portion at its tip on the upper side of the path of the booklet-shaped medium, performs a circular motion, and is positioned at a reset position when the medium is conveyed. The upper conveyance path has an arm serving as a guide, and a lower position serving as a conveyance path guide is set as a reset position below the conveyance path, and the arm is moved in an arc to be pressed by the leading end of the page break roller. By forming a floating guide serving as a pressing means for generating a pressing force, the arm and the floating guide are reset, the medium position is set, the arm is moved in an arc, and the medium is moved by the low friction portion of the page break roller. Pressed against the floating guide, the page break roller is rotated until the surface in contact with the page break roller and the medium is replaced with a high friction section from a low friction section, and is rotated to the middle of the circumference of the high friction section, A pagination mechanism for the booklet-shaped medium, wherein the arm is circularly moved to a position at which the pressing force of the floating guide is eliminated or more, and the page feed roller is rotated in a direction opposite to the circular motion direction of the arm. . 9. The apparatus according to claim 1, further comprising: moving the arm in a circular arc to a position where the pressing force of the floating guide is eliminated, and simultaneously rotating the page changing roller in a direction opposite to the circular motion of the arm. 9. The page break mechanism for a booklet medium according to claim 8, wherein only the roller is further rotated.