JPH06183632A - Discharged paper conveying device - Google Patents

Abstract

PURPOSE:To remove discharged paper easily by conveying paper discharged from an image forming device body to a prescribed removal position automatically. CONSTITUTION:A discharged paper feeder 60 is provided with a conveyance belt 61. After multiple sheet copying (1 job) for one document is carried out, multiple paper sheets (copy paper) 43 are stacked in a registered state on the conveyance belt 61 by a paper pressing member 66. When an operator turns ON a push switch 65, a motor 63 is driven and its rotary force is transmitted to a driving roller 62 through a gear mechanism to rotate the conveyance belt 61 in the arrow B direction. The paper sheet 43 is conveyed to the operator. When the operator release the push switch 65 at an appropriate position to turn it OFF, the conveyance belt 61 stops and movement of the paper sheet 43 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ejected sheet conveying device for conveying ejected sheets to a predetermined removal position in an image forming apparatus such as a copying machine or a printer, and more particularly to a sheet ejection position. The present invention relates to a discharged sheet conveying device used in a large-sized image forming apparatus that is separated from an operator's operation position.

[0002]

2. Description of the Related Art A large-sized copying machine for copying drawings has various characteristics, unlike a general office copying machine. For example, the exposure optical system is not a system in which a document placed on a stationary platen glass is scanned and exposed by moving the optical system like a general office copying machine.
An electrostatic latent image corresponding to the original is formed on the photosensitive drum by moving the original while keeping the optical system stationary. Further, since the copy sheets are also very large such as A0 size and A1 size, the discharge sheet storage tray for storing the sheets after the copying is also large. Therefore, the discharged sheet storage tray is generally provided on the upper part of the main body of the copying machine.

Further, since the discharge sheet storage tray of a copying machine for a large drawing needs to store a large sheet, the tray has a long slobe and a small inclination angle. There was a problem that it was difficult to fall to the front end. Further, even if it is dropped, the sheets are inclined due to static electricity or the like, and there is a problem that they are not accurately stacked.

Therefore, in the prior art, in Japanese Patent Laid-Open No. 60-2567, air is blown onto the paper on the discharged paper storage tray, and in Japanese Patent Laid-Open No. 61-23077, the tray is oscillated so that the paper is placed on the tray. Attempts have been made to stack the sheets of paper exactly with their front edges aligned. However, these techniques have a problem in that the structure is complicated and the ejected sheets cannot be accurately stacked on the tray when long sheets or small-sized sheets are copied in pieces.

For this reason, the same applicant as the present applicant first stacked the sheets with a simple structure by aligning the trailing ends of the sheets discharged onto the tray, and the operator stacks the sheets if necessary. A discharge paper tray capable of removing the discharged discharge paper has been proposed (Japanese Patent Laid-Open No. 63-101266).
In the technique of this publication, a movable bottom plate for receiving discharged sheets is provided in a discharged sheet tray, and a sheet pressing member for aligning and stacking the rear ends of the discharged sheets is provided on the movable bottom plate. .

In this discharged paper tray, the discharged paper is stacked on the movable bottom plate, but the discharged paper is pressed from above by the paper pressing member and the paper is braked. As a result, the sheets are stacked with their rear ends aligned. Therefore, the operator can easily remove the sheets stacked on the movable bottom plate by moving the movable bottom plate toward you.

[0007]

However, in the technique proposed above, the operator has to manually move the movable bottom plate to the front when removing the stacked sheets, which is a troublesome and troublesome operation. there were.

Further, when the discharged sheets are long ones such as A0 size sheets, the sheets are wavy depending on the length of the discharged sheet tray, and the sheets cannot be stacked in a flat state so that they are not easily accommodated. There was a problem of getting worse.

The present invention has been made in view of the above problems, and an object thereof is to automatically convey a sheet discharged from the image forming apparatus main body to a predetermined removal position by a simple operation, and to discharge the discharged sheet. An object of the present invention is to provide an ejected sheet conveying device that can be easily removed.

It is another object of the present invention to provide an ejected sheet conveying device capable of accommodating and removing a sheet in a flat state regardless of the length of the ejected sheet.

[0011]

According to a first aspect of the present invention, there is provided an ejected sheet conveying device for ejecting a sheet ejected from an image forming apparatus main body toward a predetermined removing position, and an on / off operation. According to the above, there is provided drive instructing means for instructing the discharged sheet transporting means to start or stop driving and driving the discharged sheet transporting means for an arbitrary time.

In this ejected sheet conveying device, the ejected sheet conveying means is driven from the time the operator turns on the drive instruction means (push switch) until the operator turns off the drive instruction means (push switch) to remove the sheet ejected from the main body of the image forming apparatus. Automatically conveys to the position. Therefore, the operator can move the discharged sheet to any position and can easily remove it.

According to another aspect of the present invention, there is provided an ejected sheet conveying device for ejecting a sheet ejected from an image forming apparatus body toward a predetermined removing position, and an ejected sheet conveying means for conveying the ejected sheet. Each time a job is completed, a sheet conveyance control unit that drives the discharged sheet conveyance unit for a fixed time to move the sheet to the removal position is provided.

In this ejected sheet conveying device, ejected sheets are automatically conveyed to the removing position each time one job is completed without the operator's switch operation, so that the ejected sheets can be removed more easily. It can be done easily.

Further, according to a third aspect of the present invention, there is provided an ejected sheet conveying device for ejecting a sheet ejected from an image forming apparatus body toward a predetermined removing position, and an ejected sheet conveying means for conveying the sheet. The discharged sheet conveying means is periodically driven for a set time after each job, and the sheets are shifted and stacked for each job, and after all the jobs are finished, the discharged sheet conveying means is driven for a fixed time and stacked. And a sheet conveyance control means for moving the sheet to the removing position.

In this discharged sheet conveying device, the discharged sheet conveying means is periodically driven for a set time each time one job is completed in the image forming apparatus main body, and as a result, the sheets are stacked while being shifted for each job. Then, after all the jobs are completed, the ejected sheet conveying means is driven for a certain period of time to automatically convey the stacked sheets to a position where they are removed. Therefore, it is possible to process discharged sheets related to multiple jobs collectively,
Classification is facilitated because the jobs are stacked in a shifted state.

The "constant time" referred to in the discharged sheet transporting device according to claims 2 and 3 is known in advance by designing the distance between the sheet discharging position and the removing position of the image forming apparatus main body. Therefore, it is set according to the size of the paper from the relationship between this distance and the paper transport speed.

According to a fourth aspect of the present invention, there is provided a discharged sheet carrying device.
Discharged sheet conveying means for automatically conveying the sheet discharged from the image forming apparatus main body to a predetermined removing position, and a stopper provided so as to be extendable in the sheet conveying direction at the removing position of the image forming apparatus main body. A member, a paper length detecting means for detecting the length of the paper discharged from the main body of the image forming apparatus, and a stopper for expanding and contracting the stopper member according to the length of the paper detected by the paper length detecting means And member driving means.

In this discharged sheet conveying device, the stopper member is automatically expanded and contracted according to the length of the sheet detected by the sheet length detecting means, and long or large size sheets can be accommodated flat and removed. You can

Further, according to a fifth aspect of the present invention, there is provided an ejected sheet conveying device which automatically conveys a sheet ejected from the image forming apparatus main body to a predetermined removing position, and the ejected sheet conveying means. And a discharge sheet winding device for automatically winding the conveyed discharge sheet at the removing position.

In this ejected sheet conveying apparatus, the sheet ejected from the image forming apparatus is automatically conveyed to the removing position and automatically wound up. Therefore, the operator can more easily remove the discharged sheet.

[0022]

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 shows a schematic structure of the entire large-sized copying machine 1 equipped with a discharged sheet conveying device 60 according to the first embodiment of the present invention. FIG. 2 shows an external perspective view of the large-sized copying machine 1.

The large-sized copying machine 1 has a photosensitive drum 10 which rotates in the direction of arrow A inside. Around the photoconductor drum 10, a charging corotron 11 for uniformly charging the surface of the photoconductor drum 10 and the surface of the charged photoconductor drum 10 are exposed to form image information of an electrostatic latent image. Image exposure system 12, a developing device 13 that visualizes an electrostatic latent image with toner, and a transfer corotron 14 for transferring the toner image formed by the developing device 13 onto a sheet (cut sheet) 43. , A peeling corotron 15 for peeling the paper 43 on which the toner image is transferred, and a cleaning device 1 for cleaning the surface of the photoconductor drum 10 after the transfer.
6 and a discharging corotron 17 for discharging the surface of the photosensitive drum 10 after cleaning are provided in this order.

In this large-scale copying machine 1, the charging corotron 1
An electrostatic latent image is formed by the image exposure system 12 on the surface of the photosensitive drum 10 which is uniformly charged by 1. The electrostatic latent image is developed by the developing device 13 to be a toner image.

The image exposure system 12 is a known document self-propelled document handler 30, an exposure lamp 31, and a mirror 3.
2, the lens 33 and the mirror 34. The document handler 30 is provided with a plurality of transport rollers 35, two pinch rollers 36 are brought into contact with each of the transport rollers 35 to form a pair of transport rollers, and a path finger 37 is rotated to rotate the document self-propelled path. It is designed to determine the length. The original to be copied is the original insert table 3
8 is inserted into the document handler 30 and is conveyed by the conveying roller pair 39 to be introduced into the document handler 30.

The paper 43 is pulled out from the roll paper 40,
A cutter portion composed of the fixed blade 41 and the rotary blade 42 is cut into a predetermined length. The toner image on the photoconductor drum 10 is transferred onto the paper 43 by the transfer corotron 14, and then the peeling corotron 15 is used.
After being peeled from the sheet, the sheet is sent to the thermal fixing device 44 by the conveying belt 19 along the conveying path 22 shown by the dotted line. on the other hand,
The surface of the photoconductor drum 10 having the toner remaining without being involved in the transfer is cleaned by the cleaning device 16. Further, the charge-removing corotron 17 is used for the photosensitive drum 10.
The upper charge is removed and one copy cycle ends.

The heat fixing device 44 is provided with a housing 45 arranged above and below the sheet conveying path 22 and a plurality of heaters 47 provided in the housing 45 via a heat insulating member 46.
, The drive sprocket 48, and the plurality of idler rollers 4
Conveying paper wrapped around 9 Chain gripper for paper 5
It is composed of 0 and. The paper 43 conveyed by the conveyor belt 19 is gripped by the chain gripper 50 and a toner image is fixed while passing between the heaters 47. The sheet of paper 43 on which the fixing is completed is conveyed upward by a plurality of sets of conveying rollers 20, and is ejected onto the ejected sheet conveying device 60 by the pair of ejection rollers 51.

The discharged sheet carrying device 60 is provided with a carrying belt 61 for carrying the discharged paper 43 to the front part (left side in the figure) of the device. The conveyor belt 61 is composed of, for example, an endless belt made of a rubber material. The conveyor belt 61 is wound around a drive roller 62 provided on the front side in the sheet conveying direction and a driven roller 64 provided on the rear side. The rotational force of the motor 63 is transmitted to the drive roller 62 via a gear mechanism. A push switch 65 as a drive instruction means is provided on the front surface of the large-sized copying machine 1. The push switch 65 is pushed to drive the motor 63 only while in the ON state, and the conveyor belt 61 is indicated by an arrow B in the figure. It is designed to rotate in the direction.

A stopper member 80 corresponding to the conveyor belt 61 is provided on the front surface of the large-sized copying machine 1. The stopper member 80 can be pulled out forward depending on the size of the paper 43 to be ejected. Further, a paper pressing member 66 formed of, for example, a wire is installed above the discharge portion of the paper 43. The paper pressing member 66 has a base end fixed to the housing of the large-sized copying machine 1, and a paper 43 discharged from the discharge roller pair 51 at the tip thereof.
And the rear end portions thereof are aligned and stacked on the conveyor belt 61.

In the large-scale copying machine 1 of the present embodiment, when one or a plurality of copies (one job) of one document are completed, one or a plurality of sheets 4 are placed on the conveyor belt 61.
The sheets 3 are stacked in the state of being aligned by the sheet pressing member 66. Here, when the operator turns on the push switch 65, the motor 63 is driven, the rotational force thereof is transmitted to the drive roller 62 via the gear mechanism, and the conveyor belt 61 rotates in the arrow B direction. As a result, the paper 43 is carried to the operator's hand. When the operator releases the push switch 65 to turn it off at an appropriate position, the conveyor belt 61 stops and the movement of the paper 43 is stopped.

As described above, in this embodiment, the paper 43 can be moved to the hand only while the operator turns on the push switch 65. Therefore, the operator can stop the paper 43 at a position that suits him, and can easily remove the paper 43 from the conveyor belt 61.

In the first embodiment, the conveyor belt 61 is driven by the manual operation of the operator to move the paper 43. However, this is to be automatically moved by the control of the controller when one job is completed. You can also

FIG. 3 shows the structure of the control unit according to the second embodiment. The rest of the configuration is similar to that of FIGS. 1 and 2, and therefore its description is omitted.

This control unit is a CPU (Central Processing Unit) 70
Is equipped with. The CPU 40 is connected to each unit in the large-sized copying machine 1 via a bus line 71. Of these, ROM
The (read only memory) 72 stores various programs for controlling the copying operation of this apparatus and a program for moving the ejected paper 43 to the operator's hand as shown in FIG. The input port 73 is an interface for sending a detection signal output from the sensor group 74 of each unit provided in the apparatus to the CPU 70 via the bus line 71. Upon receipt of these detection signals, the CPU 70 determines whether or not one job has ended. When one job has ended, a drive signal is output, and a stop signal is output after a certain time has elapsed after the drive signal was output. It has become. The output port 75 is the CPU 7
This is an interface for sending the drive signal or the stop signal output from 0 through the bus line 71 to the motor 63. The motor 63 receives the drive signal and the stop signal and is driven for a certain period of time.

FIG. 4 is a flow chart showing the operation in this embodiment. That is, the CPU 70 receives a detection signal output from the sensor group 74 and determines whether one job is completed (step S401), and when it is completed (Y), outputs a drive signal to the motor 63. (Step S40
2). As a result, the motor 63 is driven and the conveyor belt 61
Rotates and the paper 43 moves. When the fixed time A has elapsed (step S403; Y), the CPU 70 outputs a stop signal to stop the driving of the motor 63 (step S404). As a result, the paper 43 is stopped at a predetermined position (removal position). If the removal position is set to a position corresponding to the drive roller 62 for a certain time A, the distance from the discharge roller pair 51 to this point is known in advance from the design. Therefore, this distance and the conveyance speed of the paper 43, that is, It is set based on the rotation speed of the motor 63 (rotation speed of the drive roller 62) corresponding to each size of the paper 43.

In the present embodiment, when one job is completed, the ejected paper 43 is automatically conveyed to the operator's hand, and therefore the on / off operation of the push switch 65 is unnecessary unlike the first embodiment. Therefore, it becomes easier to remove the paper 43.

In the second embodiment, the paper 43 is moved after the completion of one job, but a plurality of jobs are completed together and the paper is completed after the final job is completed. You may make it move 43 collectively.

FIG. 5 shows the paper 43 in the third embodiment.
6 shows the transport state of the above, and FIG. 6 shows the operation program at that time.

In this embodiment, the CPU 70 has a sensor group 74.
It is determined whether one job is completed by receiving the detection signal output from (step S601), and if it is completed (Y), a drive signal is output to the motor 63 (step S602). As a result, the motor 63 is driven, the conveyor belt 61 rotates, and the paper 43 moves. Then, a fixed time B (<A) elapses (step S603; Y).
Then, the CPU 70 outputs a stop signal to stop the driving of the motor 63 (step S604). As a result, the paper 43 for one job moves slightly forward from the initial position.

By repeating such an operation, the sheets 43 are stacked in a shifted state for each job. And CP
The final job of U70 is finished (step S605)
Then, it is monitored whether the push switch 65 is turned on by the operator (step S606). Push switch 6
When 5 is turned on (Y), the drive signal is output again to drive the motor 63 for a certain time C (step S607),
All the sheets 43 are moved to the operator's hand. The fixed time C is set in the same manner as the above-mentioned time A,
It is also necessary to consider the number of jobs that are performed together.

In each of the first to third embodiments, the case where the paper 43 has a relatively small size has been described.
When the ejected paper 43 is a large-sized paper such as A0 or a long paper, the leading end of the paper 43 may contact the stopper member 80 as shown in FIG. In such a case, corrugations 43a may be formed and the sheets 43 may not be stacked in a flat state, which is not preferable.

FIGS. 8 to 11 show the construction of the fourth embodiment of the present invention for stacking the sheets 43 in a flat state when the ejected sheets 43 are large in size.

FIG. 9 shows the structure of the drive mechanism for the stopper member 80. The stopper member 80 is movable back and forth according to the rotation of the motor 83. That is, the rotary plate 82 is attached to the rotary shaft of the motor 83, and one end of the link member 81 is attached to the rotary plate 82 so as to be rotatable around the shaft portion 85. Link member 81
One end of a stopper member 80 is rotatably attached to the other end of the shaft member 84 about a shaft portion 84.

In this drive mechanism, when the motor 83 is driven and the rotary plate 82 rotates, the stopper member 8 is correspondingly rotated.
0 moves back and forth, expanding and contracting. The stopper member 80
The drive of is not limited to the motor 83, and a solenoid may be used.

FIG. 10 shows the structure of the control unit in this embodiment. In the present embodiment, the CPU 70 detects the size of the paper 43 based on the detection signal output from the sensor group 74, and drives the stopper member 80 according to the size. The other configuration is similar to that of FIG. 3, and thus its description is omitted.

In this embodiment, the CPU 70 has a sensor group 74.
The size of the paper 43 is detected based on the detection signal output from the printer, and it is determined whether the paper is a large size paper (FIG. 11, step S).
1000), for large size paper (Y) motor 83
Is driven for a certain period of time to extend the stopper member 80 forward (step S1001). As a result, the waving 43a as shown in FIG. 7 does not occur on the sheet 43, and the sheets 43 can be stacked in a flat state. The stopper member 80 is preferably stored after a certain period of time, and particularly when the size of the paper 43 to be discharged next is small, it is necessary to store the stopper member 80 promptly.

If it is determined in step S1000 that the sheet is not a large size sheet, step S in FIG.
After step 401, automatic conveyance is performed.

12 to 15 each show a fifth embodiment of the present invention, in which a large-sized or long paper 4 is used.
3 makes it possible when winding is required at the time of discharge.

In this embodiment, a take-up guide member 90 is attached to the front part of the discharged sheet conveying device 60. The winding guide member 90 is formed by bending both ends of a wire into a U shape, for example, and both ends thereof are rotatably attached to the shaft of the drive roller 62. In the middle part of the winding guide member 90, as shown in FIG.
As shown in FIG. 4, a plurality of, for example, three rollers 91 are rotatably attached. Also, this winding guide member 9
Inside the U-shaped portions on both sides of 0, guide portions 90a having a curved surface are provided.

In the discharged sheet carrying device 60, the sheet 43 is
When the winding requires the winding guide member 90, the operator lifts the winding guide member 90 as shown by the arrow in FIG. 12, and sets the roller 91 on the upper portion of the transport belt 61. FIG.
And FIG. 14 shows the state at that time. In this state, when the operator turns on the push switch 65, the transport belt 61 moves forward as indicated by arrow B, and the sheet 43 is nipped between the transport belt 61 and the roller 91. The nipped paper 43 is further sent out to the front and wound up along the U-shaped portion of the winding guide member 90 and the guide portion 90a. Then, when the operator turns off the push switch 65, the motor 63 is stopped and the winding is completed. The wound paper 43 can be taken out from the lateral direction of the take-up guide member 90, and the operator can easily take out the paper 43 at hand.

[0052]

As described above, according to the ejected paper conveying apparatus of the first aspect, the ejected paper conveying means for conveying the paper ejected from the main body of the image forming apparatus to the predetermined removing position, Since the discharge sheet conveying means is instructed to start or stop the driving in response to the OFF operation and the discharge sheet conveying means is driven for an arbitrary time, the operator can discharge the discharged sheet. Can be moved to any position and can be easily removed.

According to the second aspect of the present invention, there is provided an ejected sheet conveying device for conveying the sheet ejected from the image forming apparatus main body toward a predetermined removal position, and the image forming apparatus main body. Each time one job is completed, the discharge paper transport means is driven for a certain period of time to move the paper to the removal position. Therefore, the paper is discharged at the end of one job. The paper is automatically conveyed to the removal position, and the discharged paper can be removed more easily.

Further, according to the third aspect of the present invention, there is provided a sheet discharge device that conveys the sheet discharged from the main body of the image forming apparatus to a predetermined removal position.
The discharged sheet conveying means is periodically driven for a set time each time one job is completed in the main body of the image forming apparatus, and the sheets are shifted and stacked for each job, and the discharged sheet conveying means is completed after all the jobs are completed. Since it is provided with a paper conveyance control means for driving the stacked sheets for a certain period of time to move the stacked sheets to the removing position, it is possible to collectively process the discharged sheets related to a plurality of jobs and to shift the sheets for each job. Since they are stacked, classification is easy.

According to a fourth aspect of the present invention, there is provided a discharged sheet conveying device for automatically conveying a sheet discharged from the main body of the image forming apparatus to a predetermined removing position, and the image forming apparatus. A stopper member provided so as to be extendable in the paper transport direction at the removal position of the main body, a paper length detection means for detecting the length of the paper discharged from the main body of the image forming apparatus, and the paper length detection means Since the stopper member driving means for extending the stopper member according to the detected length of the sheet is provided, even a long or large size sheet can be accommodated and removed in a flat state.

According to another aspect of the present invention, there is provided an ejected sheet conveying device for automatically conveying a sheet ejected from the main body of the image forming apparatus to a predetermined removing position, and an ejected sheet conveying means. The ejected paper is automatically conveyed to the removing position, and the ejected paper is automatically taken up at the removing position. To be wound up. Therefore, the operator can more easily remove the discharged sheet.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a schematic configuration of a large-sized copying machine equipped with a discharged sheet conveying device according to a first embodiment of the present invention.

FIG. 2 is a perspective view for explaining the operation of the discharged sheet transporting device of FIG.

FIG. 3 is a block diagram showing a configuration of a control unit in a large-sized copying machine according to a second embodiment of the present invention.

FIG. 4 is a flowchart for explaining the operation of the second embodiment.

FIG. 5 is a perspective view showing a sheet stacking state in a discharged sheet transporting device according to a third embodiment of the invention.

FIG. 6 is a flowchart for explaining the operation of the third embodiment.

FIG. 7 is a perspective view for explaining a problem when the paper is long.

FIG. 8 is a perspective view of a large-sized copying machine equipped with a discharged sheet conveying device according to a fourth embodiment of the present invention.

9 is a perspective view for explaining a drive mechanism of a stopper member in the discharged sheet transporting device of FIG.

FIG. 10 is a block diagram illustrating a configuration of a control unit according to a fourth embodiment.

FIG. 11 is a flowchart for explaining the operation of the fourth embodiment.

FIG. 12 is a cross-sectional view showing a schematic configuration of a large-sized copying machine equipped with a discharged sheet transporting device according to a fifth embodiment of the invention.

FIG. 13 is a cross-sectional view for explaining the operation of the discharged sheet carrying device according to the fifth embodiment.

FIG. 14 is a perspective view for explaining the operation of the discharged sheet carrying apparatus according to the fifth embodiment.

FIG. 15 is a perspective view for explaining the operation of the discharged sheet carrying apparatus according to the fifth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Large copying machine, 60 ... Ejection paper conveyance device, 61 ... Conveyance belt, 62 ... Driving belt, 63 ... Motor, 64 ... Followed roller, 65 ... Push switch, 66 ... Paper pressing member, 7
0 ... CPU (central processing unit), 80 ... Stopper member, 8
3 ... Motor, 90 ... Winding guide member, 91 ... Roller

Claims (5)

[Claims] 1. A discharged sheet transporting means for transporting a sheet discharged from an image forming apparatus main body toward a predetermined removal position, and starting or stopping driving of the discharged sheet transporting means in response to an on / off operation. And a drive instruction means for driving the ejected sheet conveying means for an arbitrary time. 2. A discharged sheet conveying means for conveying the sheet discharged from the main body of the image forming apparatus to a predetermined removing position, and the discharged sheet conveying means for each completion of one job in the main body of the image forming apparatus. An ejected sheet conveying device comprising: a sheet conveying control unit that drives the sheet for a fixed time to move the sheet to the removing position. 3. A discharged sheet conveying means for conveying the sheet discharged from the main body of the image forming apparatus to a predetermined removing position, and the discharged sheet conveying means for a set time each time one job is completed in the main body of the image forming apparatus. A sheet transport for driving the means periodically to stack the sheets by shifting them for each job, and driving the discharged sheet transport means for a certain period of time after all the jobs are finished to move the stacked sheets to the removing position. An ejected sheet conveying device comprising: a control unit. 4. An ejected sheet conveying means for automatically conveying a sheet ejected from the image forming apparatus main body to a predetermined removing position, and an extension in the sheet conveying direction at the removing position of the image forming apparatus main body. A stopper member, a sheet length detecting means for detecting the length of the sheet discharged from the image forming apparatus main body, and the stopper according to the length of the sheet detected by the sheet length detecting means. An ejected sheet conveying device, comprising: a stopper member driving means for expanding and contracting a member. 5. A discharged sheet conveying means for automatically conveying the sheet discharged from the main body of the image forming apparatus to a predetermined removing position, and the discharged sheet conveyed by the discharged sheet conveying means. An ejected sheet conveying device, comprising: an ejected sheet winding device that automatically winds the ejected sheet at a position.