JP2010126355A - Delivered paper loading device, image processing device, and image scanner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce damage to paper to be delivered in comparison with the case where the delivered paper is normally brought into contact with a paper aligning member, in a delivered paper loading device or the like. <P>SOLUTION: This delivered paper loading device 30 includes a delivered paper loading section 31 for loading the paper P to be delivered and the aligning member 32 for aligning the paper P to be loaded on the delivered paper loading section 31. The aligning member 32 is so mounted that, when the paper P is loaded on the delivered paper loading section 31, the aligning member is hung at a position at a constant distance L from the end of the paper P. The aligning member 32 receives the collision of the paper P to be delivered, and performs a pendulum motion while finely vibrating. Thereby, the paper P loaded on the delivered paper loading section 31 is aligned by the aligning member 32. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a paper discharge stacking device, an image processing device, and an image reading device.

Paper that has been printed in an image forming apparatus such as a printer, or paper that has been read in an image reading apparatus equipped with an automatic paper feeding mechanism that continuously feeds paper is discharged and discharged in a paper discharge stacking unit of a paper discharge stacking device Are sequentially loaded. As described above, in the paper discharge stacking apparatus that stacks the discharged paper, for example, a sheet alignment (alignment) member for aligning the paper bundle may be provided in order to prevent the stacked paper bundle from being disturbed.
For example, Patent Document 1 describes a paper discharge stacking device that is provided with an end fence that can slide in a paper discharge direction on a paper discharge stand, and that aligns a sheet bundle with the end fence. Japanese Patent Application Laid-Open No. 2004-228561 describes a technique for aligning a bundle of sheets by suspending a stopper member from above the discharge tray so as to come into contact with the leading end in the discharge direction of the sheets stacked on the discharge tray. Yes.

JP-A-10-87146 JP 2000-136060 A

By the way, in the paper discharge stacking apparatus, depending on conditions such as the shape, material, and position of the paper aligning member, the paper to be discharged may be damaged such as being bent. Therefore, it is necessary to set suitable conditions for the shape, material, position, and the like of the sheet aligning member in the paper discharge stacking apparatus.
SUMMARY OF THE INVENTION An object of the present invention is to reduce damage to discharged paper as compared with a case where discharged paper is always in contact with a paper aligning member in a paper discharge stacking device or the like.

  According to the first aspect of the present invention, there is provided a stacking unit on which sheets discharged from the upstream side toward the downstream side in the transport direction are sequentially stacked, and an end on the downstream side in the transport direction of the sheets stacked on the stacking unit. Abutting member that hangs down from above the stacking unit at a position further away from the position of the sheet in the downstream direction of the conveyance and where the end of the sheet in the downstream direction of the conveyance of the sheet can collide when the sheet is discharged And a sheet discharge stacking device.

The invention according to claim 2 is the paper discharge stacking apparatus according to claim 1, wherein the abutting member is configured to be deformable by a paper collision.
The invention according to claim 3 is the paper discharge stacking apparatus according to claim 2, wherein the abutting member is a chain.

  According to a fourth aspect of the present invention, there is provided a discharge conveyance unit that discharges a sheet after image formation or a sheet after image reading from the upstream side toward the downstream side in the conveyance direction, and the sheet discharged by the discharge conveyance unit. Are sequentially stacked, and a position further away from the downstream end position in the transport direction of the paper stacked on the stack section and further downstream in the transport direction when the paper is discharged. An abutting member that hangs down from above the stacking unit is provided at a position where the end of the sheet can collide.

  According to a fifth aspect of the present invention, there is provided a stacking unit on which sheets to be discharged after image reading is performed, and a downstream side of the discharge direction from an end position on the downstream side of the discharge direction of the sheet when stacked on the stacking unit. And an oscillating member that oscillates when the ejected sheet collides and can come into contact with the sheet again.

A sixth aspect of the present invention is the image reading apparatus according to the fifth aspect, wherein the swinging member performs a pendulum movement by a paper collision.
The invention according to claim 7 further includes an original paper stacking portion on which original paper before an image is read is stacked, and the swinging member is suspended at one end fixed to the original paper stacking portion. An image reading apparatus according to claim 5 or 6.

  According to the first aspect of the present invention, it is possible to reduce the damage of the paper as compared with the case where the discharged paper is always in contact with the aligning member.

According to the second aspect of the present invention, the abutting member can be more easily brought into contact with the entire end portion of the sheet bundle stacked on the stacking unit as compared with the case where this configuration is not provided.
According to the third aspect of the present invention, compared with the case where this configuration is not provided, the paper loaded on the stacking section can be pushed back more frequently to the upstream side while the abutting member vibrates finely.

  According to the fourth aspect of the present invention, in the image processing apparatus that discharges the paper after the image formation or the paper after the image reading, compared to the case where the discharged paper is always in contact with the aligning member, Damage can be reduced.

  According to the fifth aspect of the present invention, the swinging member is a sheet that is ejected after the image is read by the image reading device as compared with the case where the ejected sheet is always in contact with the swinging member. It is difficult to become an obstacle when stacking, and it can swing and align sheets.

According to the sixth aspect of the invention, it is possible to align the sheets by using the collision energy of the sheets for the pendulum movement of the swing member.
According to the seventh aspect of the present invention, it is not necessary to provide a separate member such as a column in order to suspend the swinging member.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram showing an overall configuration of an image reading apparatus 1 to which the present embodiment is applied.
As shown in FIG. 1, an image reading apparatus 1 as an example of an image processing apparatus includes a sheet feeding unit 10 that sequentially feeds sheets P from a bundle of sheets, a scanner unit 20 that reads an image on the sheet P, and a sheet that has been read. A paper discharge stacking device 30 for stacking P is provided.
The sheet feeding unit 10 as an example of the discharge conveying unit includes a sheet stacking unit 11 for stacking a bundle of sheets before reading, and a conveyance path 12 for conveying the sheet P.
In addition, the sheet feeding unit 10 includes a feeding roll 13, a separating roll 14, a conveying roll 15, a registration roll 16, a platen roll 17, an out roll 18, and a discharge roll 19 in order from the upstream side in the sheet conveying direction.

  The feeding roll 13 sequentially feeds paper from a bundle of paper stacked on a paper stacking unit 11 as an example of a document paper stacking unit and transports the paper to a transport path. The separating roll 14 further conveys the sheet P while separating the conveyed sheets one by one. The transport roll 15 further transports the paper P toward the registration roll 16. The registration roll 16 supplies the paper P to a later-described paper reading position while performing registration adjustment on the paper P. The platen roll 17 assists the conveyance of the paper P during image reading by the scanner unit 20. The out-roll 18 conveys the paper P on which the image is read by the scanner unit 20 further downstream. The discharge roll 19 further conveys the read paper P and discharges the paper P toward the paper discharge stacking device 30.

The scanner unit 20 reads an image of the paper P conveyed by the paper feeding unit 10. The scanner unit 20 includes a platen glass 21 on which the paper P is placed in a stationary state at the time of reading, and a full-rate carriage 22 that is stationary under the platen glass 21 or scans the entire platen glass 21 to read an image. A half-rate carriage 23 that supplies light obtained from the full-rate carriage 22 to the image forming unit.
The full-rate carriage 22 is provided with a light source 24 that irradiates light toward the paper P and a first mirror 25A that receives reflected light obtained from the paper P. On the other hand, the half-rate carriage 23 is provided with a second mirror 25B and a third mirror 25C that supply the light obtained from the first mirror 25A to the imaging unit.

  The scanner unit 20 includes an imaging lens 26 and a CCD image sensor 27. Among these, the imaging lens 26 optically reduces the optical image obtained from the third mirror 25C. The CCD image sensor 27 photoelectrically converts the optical image formed by the imaging lens 26. In addition, the scanner unit 20 includes a control unit 28. The control unit 28 controls each unit in the image reading operation of the scanner unit 20, processes the read image data, and the like. Further, the control unit 28 controls operations of various motors, rolls, and the like in the paper feeding unit 10. The above functions in the control unit 28 are realized by a CPU or the like controlled by a program.

FIG. 2 is a perspective view of the paper discharge stacking apparatus 30 to which this embodiment is applied.
The paper discharge stacking device 30 has a paper discharge stacking unit 31 on which the paper P discharged from the paper feeding unit 10 after image reading is finished, and a paper discharge direction (hereinafter referred to as paper discharge) of the paper P stacked on the paper discharge stacking unit 31. And an alignment member 32 for performing alignment in the width direction).
The paper discharge stacking unit 31 as an example of a stacking unit is inclined so as to rise from the discharge roll 19 side toward the downstream side in the paper discharge direction. In this manner, the discharge stacking unit 31 is inclined, and the sheet P discharged from the sheet feeding unit 10 is slid toward the discharge roll 19 so that the sheets P are aligned by their own weight.

The alignment member 32 as an example of the abutting member and the swinging member is a downstream side in the discharge direction from an end portion (hereinafter referred to as a leading end) on the downstream side in the discharge direction (conveyance direction) of the sheet bundle stacked on the discharge stacking portion 31. The paper is hung from above the sheet bundle with a gap. A stainless steel chain member is used for the alignment member 32 of the present embodiment. In the example shown in FIG. 2, the alignment member 32 according to the present embodiment includes two chain members arranged in a direction orthogonal to the paper discharge direction.
The material of the aligning member 32 may be any material as long as it has the flexibility to be deformed and returned by the collision of the discharged paper P. For example, the alignment member 32 may be a string-like member such as a metal wire.
The material of the aligning member 32 may be any material as long as the paper P is not easily caught. For example, when a chain member is used for the alignment member 32, the material of the chain member may be made of plastic. Further, the alignment member 32 is not limited to a linear shape as in the example of the chain member shown in FIG. 2, and may be a planar member made of a plate-like rubber, for example. I do not care.

The paper discharge stacking device 30 aligns the paper P by bringing the aligning member 32 into contact with the paper P to be discharged. Therefore, if the weight of the aligning member 32 is too light, the force for aligning the sheets P is insufficient, and the aligning member 32 cannot align the sheet bundle. That is, the alignment member 32 only needs to have a mass that can absorb the momentum of the discharged paper P.
On the other hand, if the alignment member 32 is too heavy, too much force is applied to the paper P, and the possibility of damage to the paper P increases. For example, when the paper P is a thick paper, the weight of the paper P is larger than that of a thin paper or the like, so it is necessary to make the alignment member 32 heavy to facilitate alignment. On the other hand, when the paper P is a thin paper, the rigidity of the paper P is smaller than that of the thick paper. Therefore, it is necessary to lighten the alignment member 32 and suppress damage to the paper P.

The weight of the aligning member 32 of the present embodiment is set in the range of about 1 g (gram) to about 15 g when the sheet P to be aligned is A4 size. Further, the alignment member 32 having a suitable weight may be suspended depending on the conditions of the paper P. For example, if the paper P is A4 size and the basis weight is 50 g / m ² (thin paper), the weight of the aligning member 32 is set to about 3 g. Further, when the paper P to be aligned is A4 size and a relatively thick paper having a basis weight of 200 g / m ² , the weight of the alignment member 32 is set to about 13 g. Furthermore, when the size of the paper P is A3 and the basis weight is 200 g / m ² , the weight of the aligning member 32 is about 26 g. As shown in FIG. 2, when the aligning member 32 is composed of two chain members, for example, the total weight of the two chain members may be set as described above.

FIG. 3 is a side view of the paper discharge stacking apparatus 30 to which this embodiment is applied.
In the example shown in FIG. 3, the one end side 32a of the aligning member 32 is fixed to the side of the sheet stacking unit 11 on which the sheet bundle before reading is stacked, on which the sheet bundle is not stacked. In the present embodiment, the other end side 32b of the alignment member 32 is a free end without being fixed. As described above, the aligning member 32 is suspended vertically downward from above the paper discharge stacking unit 31.
When the alignment member 32 receives a force due to a collision of the paper P, the alignment member 32 performs a pendulum motion. Further, as described above, the aligning member 32 is a member that has the flexibility to be deformed and returned by the collision of the discharged paper P, and when it receives a force from the paper P, it simply performs a pendulum motion. Rather, it can swing with fine vibrations.

  As shown in FIG. 3, the aligning member 32 is attached so as to hang down at a position away from the front end of the paper P by a distance L when the paper P is stacked on the paper discharge stacking unit 31. Yes. That is, the aligning member 32 is suspended at a position where it does not contact the paper P stacked on the paper discharge stacking unit 31 in a stationary state. Further, the distance L is set so that the aligning member 32 can come into contact with the leading end side of the paper P on the paper stacking portion 31 when the aligning member 32 performs a pendulum motion (see FIG. 4 described later). (See (b)).

Furthermore, the paper P jumps out to the downstream side in the paper discharge direction with momentum by the inertial force obtained when the paper P is discharged from the paper feed unit 10 (see FIG. 4A described later). On the other hand, in the paper discharge stacking apparatus 30 of the present embodiment, the distance L is set so that the discharged paper P falls within a range where it can collide with the aligning member 32. That is, the aligning member 32 to which the present embodiment is applied is further away from the downstream end position in the discharge direction (conveyance direction) of the paper P when stacked on the discharge stacking portion 31 to the downstream side in the discharge direction. It is provided and hangs at a position where it swings when the discharged paper P collides and can come into contact with the paper P again.
The distance L is specified according to the size of the discharged paper P, the paper discharge direction, and the like. In the paper discharge stacking apparatus 30 of the present embodiment, the position where the aligning member 32 is suspended is adjusted based on the specified distance L.

Next, an image reading operation of the image reading apparatus 1 according to the present embodiment will be described.
The paper P sequentially supplied from the paper stacking unit 11 is transported through the transport path 12 and passes over the platen glass 21. At this time, the full-rate carriage 22 and the half-rate carriage 23 stand by in a state where they are stopped at the solid line positions shown in FIG. Then, the light source 24 emits light, and light is irradiated toward the paper P. The reflected light reflected from the paper P is supplied to the imaging lens 26 via the first mirror 25A, the second mirror 25B, and the third mirror 25C. Further, the CCD image sensor 27 reads the optical image formed by the imaging lens 26. Such scanning is performed in the sub-scanning direction of the paper P, and reading of one sheet of the paper P is completed. The paper P that has been read is sequentially discharged toward the paper discharge stacking device 30.

  When the paper P is placed on the platen glass 21 and read, when the paper P is set on the platen glass 21 and reading is started, the full rate carriage 22 and the half rate carriage 23 are 2 The movement starts in the scanning direction (the direction of the white arrow in FIG. 1) at a ratio of: 1. At this time, light is emitted toward the paper P from the light source 24 of the full-rate carriage 22 as described above. Then, the reflected light from the paper P is reflected in the order of the first mirror 25A, the second mirror 25B, and the third mirror 25C and guided to the imaging lens 26. The light guided to the imaging lens 26 is imaged on the light receiving surface of the CCD image sensor 27. By executing the scanning operation as described above over the entire sheet P, reading of one sheet of the sheet P is completed.

Next, the operation of aligning the paper P in the paper discharge stacking device 30 will be described. In the present embodiment, the discharged paper P collides with the aligning member 32, and the aligning member 32 that has received the collision generates a pendulum motion while finely vibrating. Then, the alignment member 32 that moves pendulum contacts the sheet (bundle) again, thereby aligning (aligning) the sheet bundle in the width direction.
FIG. 4 is a diagram for explaining the operation of aligning the paper P in the paper discharge stacking device 30.
When the reading of the paper P is completed, the paper P is discharged to the paper discharge stacking unit 31 side. At this time, as shown in FIG. 4A, the discharged paper P is in a state of falling to the downstream side in the paper discharge direction by the inertia force while falling. Then, the paper P that has just been ejected collides with the aligning member 32 that is suspended downstream in the ejection direction. At this stage, the movement of the paper P toward the downstream side in the paper discharge direction is stopped, and the drop position is restricted. On the other hand, in the example shown in FIG. 4A, the aligning member 32 receives a collision of the paper P at the center of the aligning member 32 and is deformed so as to be convex in the paper discharge direction.

In the example shown in FIG. 4B, the paper P falls toward the paper bundle stacked on the paper discharge stacking unit 31, and is further stacked on the paper stack already stacked. At this time, the alignment member 32 performs a pendulum motion while finely vibrating due to the collision of the paper P. Then, the sheets P on the sheet bundle are aligned in the width direction by receiving a force pushed back to the side opposite to the discharge direction by the aligning member 32 that is performing a pendulum motion.
In addition, the sheet bundle already loaded on the sheet discharge stacking unit 31 may be disturbed by the sheet P just discharged, and the leading ends of the sheets constituting the sheet bundle may vary. Even in such a case, as shown in FIG. 4C, the aligning member 32 contacts the leading end side of the sheet bundle, so that the sheet P protruding downstream in the sheet discharge direction is pushed back to form the entire sheet bundle. It is trying to align.

As shown in FIG. 4D, the alignment member 32 gradually attenuates and returns to a stationary state (see FIG. 3) before receiving the collision of the paper P. As described above, the operation described with reference to FIGS. 4A to 4D is repeated every time the paper P is discharged. The sheet stacking unit 31 stacks a bundle of sheets aligned in the width direction.
As described above, in the paper discharge stacking apparatus 30 of the present embodiment, the aligning member 32 is hung down to a position away from the front end of the sheet bundle stacked on the paper discharge stacking unit 31, and the pendulum motion of the aligning member 32 that vibrates finely. As a result, the sheet P is pushed back frequently, and the sheet bundle is aligned in the width direction. Furthermore, since the aligning member 32 of the present embodiment is suspended at a position where it receives a collision from the discharged paper P, the aligning member 32 is moved in a pendulum manner using the collision energy of the discharged paper P. Efficient sheet stacking is realized.
When the aligning member 32 is a chain member as in the present embodiment, the paper P can be received under substantially the same conditions no matter what height the paper P hits against the suspended chain. That is, if it is a chain member, it will be possible to apply a force to the paper P in a direction in which it is deformed and restored regardless of the position of the discharged paper P.

Further, in the paper discharge stacking apparatus 30 according to the present embodiment, the impact generated when the paper P collides due to the change in the shape of the alignment member 32 is absorbed. Thereby, in the paper discharge stacking device 30, the impact sound generated when the paper P collides is made smaller than, for example, the case where a plate member or the like whose shape does not change is used for the aligning member 32.
Furthermore, in the paper discharge stacking apparatus 30 of the present embodiment, a flexible member is used for the aligning member 32 so that the aligning member 32 does not become an obstacle (obstruction) when a user or the like loads and unloads a sheet bundle. The user-friendliness is improved.

FIG. 5 is a diagram for explaining a case where a bundle of sheets stacked on the paper discharge stacking unit 31 is taken out.
By the way, while the image reading operation is being performed by the scanner unit 20, that is, in a state where the sheets P are sequentially discharged, a sheet bundle stacked on the discharge stacking unit 31 may be taken out by a user or the like. is there. Further, the sheet bundle once taken out by the user or the like may be returned to the paper discharge stacking unit 31 again. At this time, as shown in FIG. 5B, it is also assumed that the aligning member 32 is returned to the paper discharge stacking unit 31 so as to ride on the sheet bundle. As a result, the next sheet P is newly discharged while the alignment member 32 is on the sheet bundle.

Here, if the aligning member 32 is hung from the leading end of the sheet bundle to the upstream side in the sheet discharge direction and the above situation occurs, the stacking area in the width direction of the discharged sheet P becomes narrower. A load is applied to the paper P, such as the P being bent.
On the other hand, in the paper discharge stacking apparatus 30 of the present embodiment, as shown in FIG. 5C, the aligning member 32 hangs down at a position away from the front end of the sheet bundle toward the downstream side in the paper discharge direction. Thus, a stacking area for the discharged paper P is secured. Therefore, in the paper discharge stacking apparatus 30 to which the present embodiment is applied, even when the above-described situation occurs, the stack of the discharged paper P is continuously performed, and further, the damage of the paper P is generated. It is suppressed.

FIG. 6 is a diagram for explaining a problem in the case where the aligning member is hung from the leading edge of the sheet to the upstream side in the paper discharge direction.
As illustrated in FIG. 6A, the paper discharge stacking apparatus 100 includes a paper discharge stacking unit 101 that stacks the discharged paper P, and paper discharge of the paper P (paper bundle) stacked on the paper discharge stacking unit 101. An aligning member 102 that is hung by a distance S is provided upstream of the direction. In such a paper discharge stacking apparatus 100, the aligning member 102 is in a state where the leading end side of the sheet bundle stacked on the paper discharge stacking unit 101 is always pressed. In addition, when the sheets P are sequentially stacked in the paper discharge stacking unit 101, in the example illustrated in FIG. 6A, the alignment member 102 is inclined from the fixed position on the upper end side to the lower end side where the sheet P is pressed. It becomes.

  At this time, when the next paper P is discharged, as shown in FIG. 6B, the paper P remains in contact with the aligning member 102 before the discharge on the rear end side is completed. That is, the sheet P is pressed by the aligning member 102 at the leading end and the discharge portion at the trailing end, so that the sheet P is not easily dropped. In this state, when the next sheet P is further discharged, for example, the next sheet P sinks under the previous sheet P that does not fall, and the order of the stack of sheets stacked on the discharge stacking unit 101 is changed. It can happen that the original order is changed. As shown in FIG. 6B, the distance from the discharge unit to the aligning member 102 is shorter than the width of the paper P in the paper discharge direction. Therefore, when the paper P is discharged, there is a high possibility that the paper P is damaged by being compressed and bent or wrinkled.

  On the other hand, in the paper discharge stacking apparatus 30 to which this embodiment is applied, the aligning member 32 is suspended from the front end of the paper stack stacked on the paper discharge stacking unit 31 to suppress damage to the paper P. I am trying.

  Note that the paper discharge stacking device 30 of the present embodiment generates a pendulum motion while finely vibrating the alignment member 32 by the collision energy of the discharged paper P. However, for example, a driving source may be provided on one end side of the aligning member 32 and the pendulum motion may be generated by the driving. In such a case, it is not always necessary to suspend the aligning member 32 in the range (position) where the discharged paper P collides with the distance L (see FIG. 3) described above.

  Moreover, in embodiment mentioned above, the alignment member 32 demonstrated the chain member which has a softness | flexibility as an example. However, the aligning member 32 does not necessarily have to be deformed (has flexibility) in response to the collision of the paper P. That is, the aligning member 32 may be a member that causes a pendulum motion by the collision of the paper P, and may be a rigid body such as a bar member, for example. Even in this case, the discharged paper P can be aligned by the pendulum movement of the alignment member 32.

  In the above-described embodiment, the example in which the paper discharge stacking device 30 is applied to the image reading device has been described. However, application to an image reading apparatus is not limited. For example, a paper discharge stacking device 30 can be attached to an image forming apparatus as an example of an image processing apparatus such as a printer, and the paper discharged from the image forming apparatus can be aligned by the paper discharge stacking apparatus 30. For example, in an image forming apparatus employing an electrophotographic system, a toner image is transferred onto a sheet fed from a sheet feeding unit, and the transferred toner image is fixed on the sheet by a fixing device. The sheet after fixing is discharged toward the paper discharge stacking device 30 by the discharge conveyance means.

1 is a diagram illustrating an overall configuration of an image reading apparatus to which the present embodiment is applied. It is a perspective view of the paper discharge stacking apparatus to which this embodiment is applied. It is a side view of the paper discharge stacking apparatus to which this embodiment is applied. FIG. 10 is a diagram for explaining a sheet aligning operation in the sheet discharge stacking device. FIG. 6 is a diagram for explaining a case where a sheet bundle loaded on a sheet discharge stacking unit is taken out. FIG. 10 is a diagram for explaining a problem when the aligning member is hung from the leading edge of the sheet to the upstream side in the paper discharge direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Image reading apparatus, 10 ... Paper feed part, 11 ... Paper stacking part, 20 ... Scanner part, 30 ... Discharge stacking apparatus, 31 ... Discharge stacking part, 32 ... Alignment member, P ... Paper

Claims (7)

A stacking unit for sequentially stacking sheets discharged from the upstream side toward the downstream side along the transport direction;
The position of the sheet stacked on the stacking unit is further away from the downstream end position in the transport direction, and the downstream end in the transport direction of the sheet can collide when the sheet is discharged. An abutting member that hangs down from above the loading section,
A paper discharge stacking apparatus comprising:   2. The paper discharge stacking apparatus according to claim 1, wherein the abutting member is configured to be deformable by a paper collision.   The paper discharge stacking apparatus according to claim 2, wherein the abutting member is a chain. A discharge conveying means for discharging the paper after image formation or the paper after image reading from the upstream side to the downstream side along the conveyance direction;
A stacking unit on which sheets discharged by the discharge transport unit are sequentially stacked;
The end of the sheet stacked on the stacking unit is further away from the downstream end position in the transport direction and further downstream in the transport direction, and the end of the downstream sheet in the transport direction can collide when the sheet is discharged. An abutting member that hangs down from above the loading section,
An image processing apparatus comprising: A stacking unit on which sheets to be discharged after image reading is performed;
It is provided further away from the downstream end position of the paper when it is stacked on the stacking section and further downstream in the discharge direction, and swings when the discharged paper collides and re-contacts the paper Possible swinging members;
An image reading apparatus comprising:   6. The image reading apparatus according to claim 5, wherein the swinging member performs a pendulum movement by a paper collision. A document sheet stacking unit on which document sheets before an image is read are stacked;
The image reading apparatus according to claim 5, wherein one end of the swinging member is fixed to the original paper stacking unit and is suspended.

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