JP2004352425A - Sheet ejecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet ejecting device capable of establishing a good performance of sheet transportation regardless of the sheet size when any sheet with an image transcribed is to be ejected and preventing the ejected sheet from having a defect. <P>SOLUTION: The sheet ejecting device is structured so that the second rollers 32 are positioned mating with the first rollers 31 arranged rotatably in the width direction of the sheet and those two of the second rollers which are positioned innermost when viewed from the outer end in the width direction of the sheet are equipped with the first projections 32b at a certain spacing extending in the radial direction on the peripheral surface of the end part positioned at the outer end in the width direction of the sheet. The remaining second rollers with no first projection formed are equipped at a certain spacing with the second projections 32a extending in the radial direction on the peripheral surface of the two ends about the width direction of the sheet, wherein the first projections are less taller than the second projections. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet discharge device used when a recording sheet (hereinafter, referred to as a sheet) after image formation (after printing) is discharged to a discharge section in an image forming apparatus such as a copying machine, a facsimile, or a printer. It is.
[0002]
[Prior art]
Generally, in an image forming apparatus, a sheet on which an image has been formed is discharged to a discharge unit such as a discharge tray. In discharging the sheet, a sheet discharge device having a plurality of rollers is used. The sheet discharge device is disposed at a front end of a sheet discharge path located downstream of the fixing unit.
[0003]
As such a sheet discharging device, for example, a first roller mounted on a first shaft member which is disposed in a sheet discharging portion and is rotated in a predetermined direction, is spaced apart from the first shaft member. A second roller mounted on a second shaft member disposed and driven by the first roller, and a third roller mounted on the second shaft member and rotated by the second roller. In addition, a pressing portion such as a spring is disposed on the third roller so as to be able to contact and separate therefrom, and the third roller is formed of a material having a relatively high friction coefficient and has a smaller diameter than the second roller. (See Patent Document 1).
[0004]
Specifically, in the conventional sheet discharging device, a plurality of synthetic rubber first rollers are attached to the first shaft member at intervals in the axial direction, and each first roller has at least one end. A protrusion is formed on the portion. The pair of first rollers disposed on the inner side in the width direction are provided with an annular protrusion at one end on the outer side over the entire circumference, and the pair of first rollers disposed on the outer side in the width direction are provided with a pair of first rollers. Is provided with annular projections at both ends over the entire circumference.
[0005]
The second roller has a shorter length in the width direction than the first roller, is formed of a synthetic resin, and has a pair of second rollers disposed inward in the width direction. The first roller is in contact with the first roller somewhat inward from the center in the width direction, and the pair of second rollers disposed on the outer side in the width direction is in contact with the center between the projections of the corresponding first roller. I have. Also, a plurality of third rollers are mounted on the second shaft member. The third roller has a smaller diameter than the second roller.
[0006]
[Patent Document 1]
JP-A-8-239151 (paragraphs (0009) to (0012), FIGS. 1 and 2)
[0007]
[Problems to be solved by the invention]
As described above, the configuration of the conventional sheet discharge device is inevitably complicated due to the provision of the first to third rollers.
[0008]
Furthermore, although the conveyance of the sheet is improved by the protrusion formed on the first roller, a so-called roller mark may be left on the sheet due to the protrusion. In the conventional sheet discharging apparatus, there is no description about a method for improving the sheet conveyance and eliminating the roller trace.
[0009]
That is, the conventional sheet discharging apparatus has problems that it is difficult to improve the sheet conveyance regardless of the sheet size and to prevent defects such as roller traces on the sheet.
[0010]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet discharging apparatus which makes it possible to convey a sheet irrespective of a sheet size and which does not cause a defect in a discharged sheet.
[0011]
[Means for Solving the Problems]
According to the present invention, a plurality of first roller bodies used in an image forming apparatus that forms an image on a sheet and rotatably arranged in the width direction of the sheet, and a peripheral surface of the first roller body are provided. A plurality of second roller members each of which has a corresponding circumferential surface rotatably disposed therein, and a sheet for discharging the sheet to a sheet discharge unit by the first and second roller members. A discharge device, wherein a pair of the second roller members, which are located on the innermost side from the widthwise outer end of the sheet, have an end located on the widthwise outer end side of the sheet. First protrusions extending in the radial direction are formed at predetermined intervals on the peripheral surface of the portion, and the remaining second roller body except for the second roller body on which the first protrusion is formed is provided with the aforementioned There are second protrusions extending radially on the peripheral surface at both ends in the width direction of the sheet. Formed at intervals, the first protrusion is a sheet discharge device is obtained, wherein the lower its height than the second protrusion.
[0012]
As described above, the pair of second roller bodies located on the innermost side from the widthwise outer end of the sheet among the second roller bodies are provided with a radial direction on the peripheral surface at the end located on the widthwise outer end side of the sheet. Are formed at predetermined intervals, and the other second roller body except for the second roller body on which the first protrusion is formed is provided with a radially extending surface at both ends in the width direction of the sheet. If the height of the first protrusion is smaller than the height of the second protrusion, the sheet is formed by the first and second protrusions. The sheet can be satisfactorily conveyed, and the sheet does not have defects such as roller marks.
[0013]
In the present invention, the first roller body is formed of a material having high friction (for example, rubber), and the second roller body is formed of a material (for example, a material having lower friction than the material forming the second roller body). Resin), and the second roller body is disposed so as to contact the image forming surface of the sheet.
[0014]
In this way, the first roller body is formed of a material having high friction, and the second roller body is formed of a material having lower friction than the material forming the second roller body. Is arranged so as to contact the image forming surface of the sheet, the image formed on the sheet is not stained.
[0015]
Further, in the present invention, the first roller body is attached to a driving shaft body and is driven to rotate, and the second roller body is located on one side of the starting point with the center in the width direction of the sheet as the starting point. 1 group and a second group located on the other side of the starting point. In the first group, the second roller body abuts on the first roller body and contacts the drive shaft body. A second driven body is rotatably supported by a first driven shaft body extending in parallel, and in the second group, the second roller body is in contact with the first roller body and extends in parallel with the drive shaft body. The first and second driven shafts are rotatably supported by a driven shaft, and the first and second driven shafts are coaxially arranged, and the first driven shaft is a second roller on the first driven shaft. Supported between the bodies, the second driven shaft is a second driven shaft on the second driven shaft. It is supported between the roller body.
[0016]
In this manner, in the first group, the second roller body abuts on the first roller body and is rotatably supported on the first driven shaft body extending parallel to the drive shaft body. In the group, the second roller body abuts on the first roller body and is rotatably supported on a second driven shaft extending parallel to the drive shaft, so that the first and second driven shafts are coaxial. , The first driven shaft is supported between the second roller bodies on the first driven shaft, and the second driven shaft is supported on the second driven shaft on the second driven shaft. If supported between the roller bodies, the first and second driven shafts bend according to the size of the sheet, and the innermost pair of second roller bodies is separated from the first roller body 31, Roller traces do not stick to the sheet due to the first protrusions.
[0017]
Further, in the present invention, the first and second driven shafts may have, for example, a biasing unit for biasing the driven shaft toward the drive shaft at the support position. A pressing member for pushing a sheet from the first roller body side toward the second roller body may be disposed between the pair of second roller bodies.
[0018]
In the present invention, it is desirable that the interval between the first protrusions between the pair of innermost second roller bodies is longer than a predetermined width of a sheet (for example, an A6 size sheet). .
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention thereto, unless otherwise specified. It is only an example.
[0020]
First, an image forming apparatus using a sheet discharging device according to the present invention will be described with reference to FIG. The illustrated image forming apparatus is a color image forming apparatus, and a charger 12 and each color (for example, yellow (Y), cyan (C), magenta (M), and black (BK) are provided around a photosensitive drum 11. )) The developing units 13 to 16 are arranged, and the cleaning unit 17 is arranged. The intermediate transfer drum 18 is in contact with the photosensitive drum 11.
[0021]
When an image is formed, the surface of the photosensitive drum 11 is uniformly charged by the charger 12, and then the photosensitive drum 11 is exposed according to image data by an exposure unit (not shown). An electrostatic latent image is formed on the image 11. Then, the electrostatic latent image is first developed by the Y developing device 13 to form a toner image on the photosensitive drum 11 and transferred to the intermediate transfer drum 18 (primary transfer).
[0022]
After the residual toner on the photosensitive drum 11 is removed by the cleaning unit 17, the photosensitive drum 11 is charged again. Thereafter, similarly, a toner image is formed on the photosensitive drum 11 by the C developing device 14, the M developing device 15, and the BK developing device 16, and is transferred to the intermediate transfer drum 18, and each color is formed on the intermediate transfer drum 18. The toner images are superimposed to form a color toner image. The residual toner on the intermediate transfer drum 18 is removed by the cleaning device 18a.
[0023]
The color toner image is transferred to a sheet (not shown) conveyed to the secondary transfer position by the transfer belt 19 (secondary transfer), and conveyed to the fixing unit 21 by the conveyance belt 20.
[0024]
After the color toner image on the sheet is fixed by the fixing unit 21, the sheet is face-down (the printing surface is set to the lower side) to the discharge tray 24 by the sheet discharge device (sheet discharge mechanism) 23 through the discharge path 22. Is discharged).
[0025]
Here, referring also to FIG. 2, the sheet discharge mechanism 23 is provided upstream of the discharge tray 24 in the sheet discharge direction, and the first roller body 31 and the second roller 31 that contacts the first roller body 31 are provided. The sheet is sandwiched between the first and second roller bodies 31 and 32, and is discharged in the direction of the discharge tray 24. At this time, the printing surface (the surface on which the image is formed) faces the second roller body 32.
[0026]
Referring to FIGS. 3 and 4, in the example shown in FIG. 4, four first roller bodies 31 are provided, and these first roller bodies 31 are made of rubber. The first roller body 31 is mounted on the drive shaft 33 around the drive shaft 33, and the drive shaft 33 extends in the width direction of the sheet (that is, in the direction crossing the discharge direction) (see FIG. 3). The first roller body 31 is not shown (hidden and invisible). Both ends of the drive shaft 33 are rotatably supported by a sheet discharge mechanism housing (or an image forming apparatus housing) 33a.
[0027]
A second roller body 32 is in contact with the first roller body 31 on its peripheral surface, and the second roller body 32 is made of resin. Hereinafter, in FIG. 3, the second roller bodies are referred to as first to fourth roller members, respectively, in order from the left side in the figure.
[0028]
The first and second roller members 32 (first group) are rotatably mounted on the first driven shaft 34 with the first driven shaft 34 as a central axis.
[0029]
The third and fourth roller members 32 (second group) are rotatably mounted on the second driven shaft 35 with the second driven shaft 35 as a center axis. The first and second driven shafts 34 and 35 are disposed substantially in a straight line, and the first to fourth roller members 32 are symmetrically disposed with respect to the center in the sheet width direction. The first roller body 31 is also arranged symmetrically with respect to the center in the width direction of the sheet.
[0030]
As shown in FIG. 3, a compression spring 36 is attached to the first driven shaft body 34 between the first and second roller members 32 in the vicinity of the first and second roller members 32, respectively. The first driven shaft body 34 is supported at two points between the first and second roller members 32 by a shaft support member 36 a attached to the tip of the spring 36. As a result, the first driven shaft body 34 is urged upward in the drawing, and is supported in a state where the first and second roller members 32 are in contact with the first roller body 31.
[0031]
Similarly, a compression spring 36 is attached to the second driven shaft 35 between the third and fourth roller members 32 near the third and fourth roller members 32, respectively. The second driven shaft 35 is supported at two points between the third and fourth roller members 32 by the shaft support member 36a attached to the distal end. As a result, the second driven shaft body 35 is urged upward in the drawing, and is supported in a state where the third and fourth roller members 32 are in contact with the second roller body 32. Note that a sheet detection actuator 37 is disposed between the second and third roller members 32, and a pair of members 38 having a function described later are disposed so as to face each other with the actuator 37 interposed therebetween. I have.
[0032]
5 (a) and 5 (b), the first and fourth roller members 32 have radially projecting projections 32a formed at predetermined intervals on the circumferential surface at both ends in the axial direction. The height of the protrusion 32a is, for example, 0.5 mm, and is formed on the peripheral surface at a pitch of 30 degrees around the central axis of the first and fourth roller members 32. I have.
[0033]
On the other hand, as shown in FIGS. 6A and 6B, the second and third roller members 32 (the second and third roller members 32 are a pair of second roller members disposed on the innermost side. At one end in the axial direction, radially projecting protrusions 32b are formed on the peripheral surface thereof at predetermined intervals, and the height of the protrusions 32b is, for example, 0.25 mm. , The second and third roller members 32 are formed on the peripheral surface at a pitch of 30 degrees around the central axis.
[0034]
The second roller member 32 is attached to the first driven shaft body 34 such that the protrusion 32b is located on the left end side in FIG. 4, and the third roller member 32 is different from the protrusion in FIG. 32b is attached to the first driven shaft 34 so as to be located on the right end side. The height of the projection 32b may be less than the height of the projection 32a.
[0035]
As shown in FIG. 4, in the illustrated example, the mounting positions of the first to fourth roller members 32 are determined based on the sheet size. That is, the second and third attachment positions are positioned such that the interval between the second and third roller members 32 is smaller than the width of the A6 size sheet (vertical).
[0036]
The mounting position of the first and fourth roller members 32 is such that the interval between the projections 32a formed at the first and fourth sheet width direction inner ends is smaller than the width of the A4 size sheet (vertical), and The distance between the protrusions 32a formed at the outer ends of the first and fourth sheets in the width direction is set so as to be larger than the width of the A3-size sheet (vertical).
[0037]
As a result, as shown in FIG. 4, the widthwise ends of the A5 sheet (vertical) are located between the first and second roller members 32 (near the center) and between the third and fourth roller members 32, respectively. (Near the center).
[0038]
When the sheet is discharged using the above-described sheet discharging mechanism 23, the driving shaft body 33 is rotationally driven by a driving source (not shown) such as a motor, and the first roller body 31 rotates. Accordingly, the second roller body 32 rotates.
[0039]
Since the first roller body 31 is made of rubber, its friction is large, and as shown in FIG. 1, when the sheet conveyed almost vertically along the paper discharge path 22 is turned in the horizontal direction, the leading end of the sheet is First, the sheet hits the first roller body 31, whereby the sheet is reliably fed into the nip portion between the first roller body 31 and the second roller body 32.
[0040]
Since the first roller body 31 is driven, there is no rotation unevenness unlike the driven roller, and the sheet does not sag in the transport direction. Further, since the second roller body 32 is made of resin, the friction is small, and even if the printing surface comes into contact, the image surface is rubbed and no stain is generated.
[0041]
The above-mentioned member 38 dents the vicinity of the center of the width of the sheet during sheet passing downward, and as a result, the sheet undulates in a direction intersecting with the sheet passing direction (the sheet has a waist), and the leading end of the sheet is made. Can easily reach the downstream side of the discharge tray.
[0042]
On the other hand, the rear end of the sheet is pushed out by the protrusion 32a or 32b formed on the second roller body 32, so that the rear end of the sheet does not remain between the first and second roller bodies 31 and 32. If the sheet is extruded near both ends in the width direction of the sheet, the extruding direction is less likely to fluctuate.
[0043]
Referring to FIG. 7A, since the first and second driven shafts 34 and 35 are urged upward by the compression spring 36 between the roller members 32 as described above, for example, When discharging a wide sheet like an A3-size sheet, the sheet is pushed down by the member 38, and the first and second driven shafts 34 and 35 are pushed downward by the compression spring 36 by the pushing force of the sheet. It will bend slightly against the biasing force.
[0044]
Further, the second and third roller members 32 are separated from the first roller body 31, and the pressure on the sheet back surface is reduced. Since the height of the projection 32b is lower than the height of the projection 32a, no trace of the roller due to the projection 32b is formed on the sheet.
[0045]
Referring to FIG. 7B, as described above, the first and second driven shafts 34 and 35 bend in response to the sheet pressing force even in a sheet of A4 size or smaller. The amount of deflection becomes smaller as the sheet size becomes smaller. However, as described above, since the height of the protrusion 32b is lower than the height of the protrusion 32a, the roller trace due to the protrusion 32b is formed on the sheet. There is no.
[0046]
Now, using the above-described sheet discharge mechanism 23, the sheet on which the image has been formed is discharged to the discharge tray 24, and whether or not a defect such as a so-called roller trace is formed on the sheet is determined. It was examined whether or not the sheet could be stocked with high accuracy (stock property).
[0047]
Here, as the sheet, an A4 size sheet and an A3 size sheet of thin paper plain paper were used, and as the second and third roller members 32, the protrusions 32b were formed only on one side as described in FIG. In addition to selecting and using one having a protrusion 32b formed on both sides and a roller member having no protrusion 32b, the height of the protrusion 32b was variously changed.
[0048]
Referring to FIG. 8, here, the first and second roller members are each formed with a projection 32 b having a height of 1.0 mm on both sides thereof, and the second and third roller members have a height of 0 mm. Example 2 in which a projection 32b of 0.5 mm is formed on both sides thereof, Example 3, Example 2 and Example 3 in which the projection 32b having a height of 1.0 mm is formed on one side of the second and third roller members. An A4 plate sheet and an A3 plate sheet are described as Example 4 in which the protrusion 32b having a height of 0.5 mm is formed on one side of the roller member, and Example 5 in which the protrusion is not formed in the second and third roller members. Was discharged.
[0049]
FIG. 8A shows a result of discharging the A4 size sheet. In FIG. 8A, reference numerals A to D indicate roller traces at positions indicated by reference numerals A to D in FIG. 7A, respectively. The mark ○ indicates no roller trace, and the mark × indicates roller trace.
[0050]
As shown in FIG. 8A, in the A4 size sheet, in Examples 3 to 5, there were no roller traces in all of the signs A to D. In Examples 1 and 2, roller traces occurred in the sign A. In addition, the stock property (in FIG. 8 (a), the mark 良好 indicates good stock property and the mark × indicates poor stock property) was poor in Example 5.
[0051]
FIG. 8B shows the result of discharging the A3-size sheet, and the reference numerals and marks are the same as those in FIG. 8A. As shown in FIG. 8B, in the A3 size sheet, in Examples 4 and 5, there were no traces of the rollers A to D, and in Example 1, the traces of the rollers occurred in the signs A and B. Further, in Example 2, a roller trace was generated at the code A, and in Example 3, a roller trace was generated at the code B. In addition, the stock property was poor in Example 5.
[0052]
As described above, in Example 4, both the A4 size sheet and the A3 size sheet did not have any roller traces at any positions, and the stocking property was good. Further, various experiments were conducted. As a result, if the protrusions 32b of the second and third roller members 32 were made lower than the protrusions 32a of the first and fourth roller members 32, roller traces were similarly generated. It was also found that the stock properties were good.
[0053]
【The invention's effect】
As described above, according to the present invention, the pair of second roller bodies located on the innermost side from the widthwise outer end of the sheet among the second roller bodies are located on the sheet widthwise outer end side. First protrusions extending in the radial direction are formed at predetermined intervals on the peripheral surface at the end portions, and the second roller body except the second roller body on which the first protrusions are formed is provided with the sheet of the sheet. Second protrusions extending in the radial direction are formed at predetermined intervals on the peripheral surface at both ends in the width direction, and the height of the first protrusion is made lower than the height of the second protrusion. The second protrusion has an effect that the sheet can be satisfactorily conveyed, and that the sheet does not have defects such as roller traces.
[0054]
In the present invention, the first roller body is formed of a material having a high friction, the second roller body is formed of a material having a lower friction than the material forming the second roller body, and the second roller body is formed. Since the sheet is arranged so as to be in contact with the image forming surface of the sheet, there is an effect that the image formed on the sheet is not stained.
[0055]
Further, in the present invention, in the first group, the second roller body abuts on the first roller body and is rotatably supported by the first driven shaft body extending in parallel with the drive shaft body. In the group, the second roller body abuts on the first roller body and is rotatably supported on a second driven shaft body extending in parallel with the drive shaft body, so that the first and second driven shaft bodies are Coaxially disposed to support a first driven shaft between second roller bodies on a first driven shaft, and a second driven shaft on a second roller on a second driven shaft. The first and second driven shafts bend in accordance with the size of the sheet, so that the pair of innermost second roller bodies is first roller body. There is an effect that the sheet is not separated from the sheet 31 and the trace of the roller is not attached to the sheet due to the first protrusion.
[Brief description of the drawings]
FIG. 1 is a diagram schematically illustrating an example of an image forming apparatus using a sheet discharge device (sheet discharge mechanism) according to the present invention.
FIG. 2 is an enlarged view showing a portion of the sheet discharge device shown in FIG. 1;
FIG. 3 is a view of the sheet discharge device shown in FIG. 1 as viewed from a downstream side in a discharge direction.
FIG. 4 is a diagram for explaining a positional relationship of a roller body of the sheet discharging device shown in FIG.
5A and 5B are views for explaining a pair of second roller bodies located on the outside in the sheet discharge device shown in FIG. 4, wherein FIG. 5A is a perspective view and FIG. It is.
FIGS. 6A and 6B are diagrams for explaining a pair of second roller bodies located inside in the sheet discharging device shown in FIGS. 4A and 4B, wherein FIG. 6A is a perspective view and FIG. It is.
7A and 7B are diagrams for explaining a discharging operation in the sheet discharging device shown in FIG. 4, wherein FIG. 7A is a diagram illustrating discharging of an A3-size sheet, and FIG. 7B is a diagram illustrating discharging of an A4-size sheet or less; It is.
FIGS. 8A and 8B are diagrams for explaining the presence or absence of roller traces and the sheet discharging property (stocking property) at the time of sheet discharging, wherein FIG. 8A is a diagram for explaining an A4 size sheet, and FIG. It is a figure for explaining a sheet.
[Explanation of symbols]
REFERENCE SIGNS LIST 11 photoconductor drum 12 chargers 13 to 16 developing device 17 cleaning unit 18 intermediate transfer drum 19 transfer belt 20 transport belt 21 fixing unit 22 paper discharge path 23 sheet discharge device (sheet discharge mechanism)
24 Discharge trays 31, 32 Rollers 32a, 32b Projection 33 Drive shafts 34, 35 Driven shafts 36 Compression springs 36a Bearing members

Claims (7)

A plurality of first roller members, which are used in an image forming apparatus for forming an image on a sheet and are rotatably arranged in the width direction of the sheet, correspond to the peripheral surface of the first roller member and the peripheral surface thereof. And a plurality of second roller members rotatably disposed to discharge the sheet to a sheet discharge unit by the first and second roller members,
A pair of the second roller members, which are located on the innermost side from the widthwise outer end of the sheet of the second roller member, have a radial surface at an end located on the widthwise outer end side of the sheet. First protrusions extending in the direction are formed at predetermined intervals,
Except for the second roller body on which the first protrusion is formed, the second roller body is provided with a second protrusion extending radially on the peripheral surface at both ends in the width direction of the sheet at a predetermined interval. Formed by
The sheet ejection device according to claim 1, wherein the height of the first protrusion is lower than that of the second protrusion. The first roller body is formed of a material having a high friction, the second roller body is formed of a material having a lower friction than a material forming the second roller body,
2. The sheet discharging device according to claim 1, wherein the second roller body is disposed so as to contact an image forming surface of the sheet. The first roller body is attached to a drive shaft body and is rotationally driven;
The second roller body is divided into a first group located on one side of the starting point and a second group located on the other side of the starting point with the center in the width direction of the sheet as a starting point,
In the first group, the second roller body is rotatably supported by a first driven shaft body which is in contact with the first roller body and extends in parallel with the drive shaft body,
In the second group, the second roller body is rotatably supported by a second driven shaft body extending in parallel with the drive shaft body in contact with the first roller body,
The first and second driven shafts are coaxially arranged, the first driven shaft is supported between second roller bodies on the first driven shaft, and the second driven shaft is The sheet discharge device according to claim 1, wherein the body is supported between second roller bodies on the second driven shaft body. 4. The sheet discharging device according to claim 3, further comprising a biasing unit configured to bias the first and second driven shafts toward the drive shaft. 5. A pressing member for pressing a sheet in a direction from the first roller body to the second roller body is disposed between the pair of second innermost roller bodies. Item 5. The sheet discharging device according to any one of Items 1 to 4. The distance between the first projections between the pair of second innermost roller bodies is longer than a predetermined sheet width. Sheet ejection device. The first roller body is made of rubber,
The sheet discharging device according to any one of claims 1 to 6, wherein the second roller body is made of resin.

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