JPS6212563A - Document discharging device - Google Patents

Abstract

PURPOSE:To prevent a sheet of document paper from clogging when a conveying belt is traveling in a reverse direction by providing a control means for preventing a document from being conveyed in other directions using a conveying means and a paper discharging means when said document is detected. CONSTITUTION:When a conveying belt 23 starts traveling in order to discharge a document, a second solenoid is excited and a flapper 29 is brought to a first position. Accordingly, a document which has been conveyed through the first conveying passage L1 is brought to a second conveying passage L2 via the flapper 29 which is in the first position of a conveying passage shifting device 30. The document which is brought to the second conveying passage L2 is discharged onto a paper discharge tray 29 with its surface upward, accompanying the rotation of paper discharge rollers 81, 83. When the end of the document arrives at a second document detecting sensor S2, the sensor S2 is turned on, causing the magnetism of a second solenoid to be erased while the flapper 29 to be brought to a third position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a document discharge device that is used, for example, in an automatic document feeder and discharges a copied document to a document discharge tray.

[Technical background of the invention]

Generally, in an automatic document feeder, a conveyor belt is provided so as to be able to run in both forward and reverse directions in order to convey the document on a platen glass. Further, in this automatic document feeder, a paper ejection roller is provided to eject the copied original onto a paper ejection tray.

Here, the drive source for the transport belt and the paper ejection roller is common, and when the transport belt moves the document in the forward direction toward the document ejection device, the paper ejection roller also directs the document toward the paper ejection tray. It is designed to rotate in the forward direction. In such an apparatus, in order to set the original at a predetermined copying position on the platen glass, the conveyor belt may be run in the opposite direction to return the original. In this case, if a document remains on the second conveyance path of the document ejecting device, the document ejection roller also rotates in the opposite direction as the conveyor belt runs in the opposite direction, removing the remaining document. If the document is pulled back into the document ejection device, there is a risk that the document may be damaged due to a paper jam.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a document discharging device that can prevent document jams from occurring when a conveyor belt runs in the opposite direction. That's true.

[Summary of the invention]

In order to achieve the above-mentioned object, the document discharging device according to the present invention includes a conveyance means for conveying the document in one direction along a first conveyance path or the other direction opposite to the first conveyance path; a paper ejection means for conveying a document in one direction or the other direction along a second conveyance path provided adjacent to the second conveyance path; a paper ejection tray provided in the second transport path, a drive means for simultaneously driving the transport means and the paper ejection means in a circumferential direction, and a detection means provided on the second transport path for detecting a document passing therethrough;
The present invention is characterized by comprising a control means that prevents the driving means from transporting the original in the other direction by the transporting means and the paper ejecting means when the detection means detects the original.

[Embodiments of the invention]

An embodiment of the document ejecting device according to the present invention will be described below.
The case of use in an automatic document feeder of an electronic copying machine will be described in detail with reference to FIGS. 1 to 9.

As shown in FIG. 1, an automatic document feeder ° (hereinafter referred to as
It is written as ADF. ) 3 is removably mounted.

The ADF 3 includes a separating section 5, a conveying section 7, a reversing section 9, and a paper ejecting section 11 as a document ejecting device. In the separating section 5, the document placed on the tray 13 and fed out by the feeding roller 15 is separated into sheets one by one by the separating roller 17, and sent to the conveyance section 7. Note that the original is set on the tray 13 with the original surface facing downward.

The conveyance section 7 includes a conveyance belt 23 stretched between a pair of rollers 19 and 21. A take-in roller 24 and a pinch roller 4 pressed against the take-in roller 24 are provided between the conveyor belt 23 and the separating section 9.

The leading edge of the document sent out from the separation unit 5 is once twisted by the take-in row 524 and the pinch roller 4, and then sent onto the platen glass 2 by the rotation of the take-in roller 24, and is then transferred to the platen glass 2 according to the running of the conveyor belt 23. It is moved on the platen glass 2 toward the reversing section 9. Then, when the original passes through the copying position, the transport belt 23 is rotated in the opposite direction to transport the original in the opposite direction, or the original is reversed in the reversing section 9 and then separated on the platen glass 2 (I!). The document is conveyed toward the 11SS side, hits the stopper 25, and is set at the copying position.

In this way, when the original is set at the copying position on the platen glass 2, the conveyor belt 23 stops running.
The original is held in the copy position. The original that has undergone the copying operation is transferred to the first transport path L defined between the platen glass 2 and the transport belt 23 as the transport belt 23 runs again.
1 is conveyed and then reversed again at the reversing section 9, or via the second conveying path L2 provided in the sheet discharging section 11, onto the sheet discharging tray 27 provided above the conveying belt 23. Paper is ejected.

Note that the conveying section 7 includes a frame 26 integrated with the paper discharging section 11 on the back side. This frame 26 is rotatably attached to the back of the main body of the copying machine 1 via a hinge. Therefore, when manually setting documents one by one on the platen glass 2, the transport section 7 and the paper ejection section 11
This is done by rotating the platen glass 2 around the hinge and opening the platen glass 2.

The first and second transport paths Ll of this frame 26.

There is an opening 2 in the connection part of L2, that is, in the part facing the merging part.
8 is formed.

The reversing unit 9 is provided for inverting the copied original on the platen glass 2 with the lower copy surface facing downward, and placing the original on the platen glass 2 with the opposite copy surface facing downward. .

The reversing unit 9 is detachably attached to the copying machine 1 through an opening 28 in the frame 26. As shown in FIG. 2, this reversing part 9 has a lower guide 33 whose tip extends into the opening 28 and is placed on the main body of the copy I11, and the upper surface of which can be opened onto the lower guide 33. It includes an upper guide 35 placed on the upper guide 35, and an inversion guide 43 sandwiched between the upper and lower guides 33 and 35. The upper guide 35 is rotatably attached to the lower guide 33 via a pivot 73.

A space is formed between the tip of the lower guide 33, the rear end of the frame 26, and the tip of the upper guide 35, and the conveyance guide 31 is provided in this space. The upper part of the space vertically divided by the transport guide 31 is defined as a third transport path L3, and the lower part is defined as a fourth transport path L4. On the other hand, a U-shaped fifth
It is defined as the transport path L5. The base end of this fifth transport path L5 is connected to the fourth transport path L4, and the distal end of the fifth transport path L5 is connected to the third transport path L3. Note that the fifth conveyance path L5 is provided with a first document detection sensor S1 for detecting that the document passes therethrough.

Here, the document sent to the fourth transport path L4 is transported to the third transport path L3 via the fifth transport path L5.

For this reason, a conveyance roller 37 is disposed between the conveyance guide 31 and the tip of the reversing guide 43. Further, a reversing roller 45 is disposed at the rear end of the reversing guide 43. Further, in order to engage the document brought to the fourth conveyance path L4 with the conveyance roller 37, the first pressure roller 3
9, second pressure rollers 41 are provided in rolling contact with the conveyance rollers 37 in order to engage the document brought to the third conveyance path L3 with the conveyance rollers 537. On the other hand, third and fourth pressure rollers 47 and 49 are in rolling contact with both the upper and lower portions of the reversing roller 45.

At the tip of the lower guide 33 described above, a conveyance path switching device 30 is provided that controls switching of the document conveyance direction in the combined FR section of the first to fourth conveyance paths L1 to L4. This conveyance path switching device 30 includes a flapper 29 located in front of the aforementioned conveyance guide 31, a sheet-like elastic piece 75 elastically pressed against the upper surface of the flapper 29, and a drive for rotating the flapper 29. A mechanism 32 is provided.

This flapper 29 is rotatably supported at one end on the reversing device 9 side. Then, the drive device 32 moves the other end of the flapper 29 to a first position lower than the surface of the platen glass 2, a second position slightly higher than the surface of the platen glass 2, and a second position higher than this second position. substantially the second and third transport paths L2. r for L3! 4 and the third position where the fourth transport path L4 is opened.

The elastic piece 75 described above is made of a synthetic resin having elasticity, such as a polyester film, for example. One end of the elastic piece 75 on the reversing device 9 side is attached to the lower end of the paper discharge guide 77 located above the third conveyance path L3, and the other end is pressed against the upper surface of the flapper 29. This elastic piece 75 bends in accordance with the rotation of the flapper 29, and constantly moves from the conveyance path L1 of the cylinder 1 to the third conveyance path L3.
Moving the manuscript to is prohibited. In this way, the elastic piece 75 is provided on the ejection part 11 side and closes the opening 28 when the reversing part 9 is not attached. Therefore, the document that has been transported through the first transport path L1 without the reversing unit 9 is brought to the second transport path L2.

Next, the configuration of the drive device 32 will be explained with reference to FIG.

This drive mechanism 32 includes first and second solenoids 51 .
It is equipped with 53. Inside this first solenoid 51,
A first plunger 57 is inserted so as to be reciprocally movable.

Further, the first solenoid 51 includes a first plunger 5.
A stopper 55 is attached to prevent 7 from protruding more than necessary. A rod 59 is integrally attached to the tip of the plunger 57 via a connecting portion 61. On the other hand, one end of the flapper 29 is fixed to a rotating shaft 63 that is rotatably provided. This rotating shaft 63 has
An arm 65 is fixed, and the tip of a rod 59 is rotatably connected to the upper part of the arm 65 via a shaft 60. In this way, the plunger 57 is rotated by the reciprocating movement of the plunger 57 in response to the energization/demagnetization of the solenoid 59.

On the other hand, the second solenoid 53 is connected to the first solenoid 51.
It is located below. Directly above the second solenoid 53, a second plunger 67 is provided rotatably about a shaft 68.

One end of this second plunger 67 is connected to the coupling portion 6 described above.
1, and by engaging, the forward protrusion of the first plunger 53 is limited to a small extent. The other end of the second plunger 67 is biased by a spring 71 so that one end of the plunger 67 engages with the coupling portion 61 .

Here, as the second solenoid 53 is energized, the second plunger 67 is attracted and rotated against the biasing force of the spring 71, and the engagement between the second plunger 67 and the coupling portion 61 is prevented. It will be canceled.

That is, while the second solenoid 53 is energized, the first
This means that the plunger 57 can move without any hindrance.

Note that the flapper 29 is urged to the first position by the elastic force of the elastic piece 75.

In the drive mechanism 32 configured in this way, when the first solenoid 51 is excited, the first plunger 57
is pulled in by the magnetic force, and the flapper 29 is pulled in by the elastic piece 75.
is rotated to the third position against the elastic force of. Note that in this state, the second solenoid 53 is demagnetized. With the flapper 29 in this third position, as shown in FIG.
The second transport path L2 is closed and the fourth transport path L4 is opened. In this way, the original transported through the first transport path L1 is brought to the fourth transport path L4.

Next, when the first solenoid 51 is demagnetized.

Due to the elastic force of the elastic piece 75 that is in pressure contact with the flapper 29, the flapper 29 rotates clockwise in the figure from the third position. At this point, the coupling portion 61 is also pulled out in accordance with the rotation of the flapper 29, but since the second solenoid 53 is still demagnetized, it is coupled to the second plunger 67 as shown in FIG. The portion 61 will be engaged and held in the second position. With the flapper 29 in the second position, as shown in FIG. brought to you.

Further, with the flapper 29 held at the second position,
The second solenoid 53 is 1ii13! & when done, the second
The plunger 67 is attracted to rotate clockwise in the figure against the urging force of the spring 71. In this way, the engagement between the other end of the second plunger 67 and the coupling portion 61 is released. Therefore, the flapper 29
5 is further rotated clockwise and brought to the first position as shown in FIG. As shown in FIG. 8, the flapper 29 in the first position brings the document conveyed through the first conveyance path L1 to the second conveyance path 2. As shown in FIG.

As shown in FIG. 2, the aforementioned ejection section 11 includes first and second paper ejection guides 77 that are spaced apart from each other.
It is equipped with 79. A second conveyance path L2 is defined between these two paper discharge guides 77 and 79. First and second paper ejection rollers 81 and 83 are provided to transport the original along this second transport path L2.

These first and second paper discharge rollers 81 and 83 are rotationally driven by the same drive source as the drive source of the conveyance belt 23 in accordance with the drive of the conveyance belt 23. That is, the conveyor belt 23
When the document is conveyed toward the reversing unit 9, the first and second discharge rollers 81 and 83 are both rotated in the direction to discharge the document. Therefore, when the conveyor belt 23 runs in the opposite direction, both the first and second discharge rollers 81, 83 are also rotated in the opposite direction.

A leaf spring 85 is in contact with the upper second paper ejection row, and a pressure roller 87 is in contact with the lower first paper ejection roller 81.
is in contact. A second document detection sensor S is provided on the second conveyance path L2 to detect that the document has passed therethrough.
2 is provided.

Further, a paper discharge control mechanism 89 is provided to control the rotational operations of these first and second paper discharge rollers 81 and 83.

The operation of the ADF 3 configured as described above will be explained below.

The original is placed on the original tray 13 with the first page facing downward. The documents are fed out by a feeding roller 15 starting from the topmost one, separated into sheets one by one by a separation roller 17, and sent to the conveying section 7.

The document sent to the transport section 7 is transported over the platen glass 2 toward the reversing section 9 by the running of the transport belt 23 .

Here, when copying only one side of the original, the first solenoid 51 of the drive device 32 of the conveyance path switching device 30 is deenergized and the second solenoid 53 is energized, as shown in FIG. The flapper 29 has been brought to a first position. In this way, the original that has been copied on the platen glass 2 is transferred from the first conveyance path L1 to the flapper 29 located at the first position of the conveyance path switching device 30 in accordance with the running of the conveyance belt 23. , as shown in FIG. 8, is sent to the second conveyance path L2. Thereafter, the document is transferred to the paper ejection roller 81.
By the rotation of 83, the sheet is conveyed through the second conveyance path L2 and is discharged onto the paper discharge tray 27.

Next, the case of copying both sides of a document will be described below.

In this case, when the document is supplied to the conveying section 7, first, an operation of reversing the document is performed. That is, at the same time as the conveyor belt 23 starts running, the first solenoid 51 is energized.
The second solenoid 53 is demagnetized and the flapper 29 is
brought to the third position as shown. Therefore, the document conveyed through the first conveyance path L1 passes through the flapper 29 located at the third position of the conveyance path switching device 30.
As shown in FIG. 6, it is brought to the fourth conveyance path L4.

The document brought to the fourth conveyance path L4 is transferred to the conveyance roller 3
7, it is brought to the fifth conveyance path L5. Fifth
The document brought to the third conveyance path L5 is turned upside down by the rotation of the reversing roller 45, and then brought to the third conveyance path L3 by the rotation of the conveyance roller 37.

Here, when the leading edge of the document brought to the fifth conveyance path L5 reaches the first document detection sensor S1, this sensor S
1 is turned on. By turning on the sensor S1, the first solenoid 51 is demagnetized and the running direction of the conveyor belt 23 is reversed.

In this way, the flapper 29, as shown in FIG.
brought to the second position.

Therefore, the document brought to the third transport path L3 is
As shown in the figure, it is returned to the first conveyance path L1 by passing between the seven gripper 29 in the second position and the elastic piece 75 that is in elastic contact with it, and travels in the opposite direction. The sheet is conveyed over the platen glass 2 by the conveyor belt 23 that is attached until it abuts against the stopper 25. Then, while the original is in contact with the stopper 25, the back side of the original is subjected to a copying operation.

When the copying operation for the back side of the document is completed, the conveyor belt 23 starts moving the document toward the reversing section 9 again. At the same time as the conveyor belt 23 starts running, the flapper 29 is moved again to the third position.
The document is rotated to the position , and the original is reversed according to the above-described reversing operation. In this way, the document is brought onto the platen glass 2 with its surface facing downward. In this state, the front surface of the document will undergo a copying operation.

When the copying and copying operations for the front side of the document are completed, the document is then ejected. That is, when the conveyor belt 23 starts running to eject the original, the second solenoid 53 is energized and the flapper 29 is brought to the first position as shown in FIG. Therefore, the document transported through the first transport path L1 is transferred to the second transport path L1 via the flapper 29 located at the first position of the transport path switching device W130.
is brought to the transport path L2.

The document brought to the second transport path L2 is transported to the paper ejection roller 8
With the rotation of 1.83 degrees, the paper is ejected onto the paper ejection tray 27 with the surface facing upward.

Note that when the leading edge of the document is brought to the second document detection sensor S2, this sensor S2 is turned on. This sensor S2
When turned on, the second solenoid 53 is demagnetized and the third solenoid 53 is turned on.
As shown, the flapper 29 is brought to the third position.

In this way, by repeating the above-described operations, both sides of a plurality of originals are copied.

Next, with reference to FIG. 9, the paper jam detection operation performed by the paper ejection control mechanism 89 during the ejection of a document from the paper ejection unit 11 will be described.

When the copying operation of the original is completed, as described above, the original is transported from the first transport path L1 to the second transport path L2 via the transport path switching device 3o, and as shown in step 1, the original is ejected. Paper operation is started.

At the timing when the conveyor belt 23 starts running, as shown in step 2, the operation of the first timer T1, which defines the start of driving the take-in roller 24, is started. This first
As shown in step 3, the paper ejecting operation is performed while the timer T1 is counting a predetermined time. The predetermined time in the first timer T1 is set to be long enough for the ejection operation to be completed during this time. That is, the document is completely ejected from the second conveyance path L2 within this predetermined time unless a paper jam occurs.

In step 3, when the first timer T1 finishes counting the predetermined time, driving of the take-in roller 24 is started, and as shown in step 4, the next document conveyance operation is started. When the document being conveyed on the platen glass 2 turns on the document population sensor (not shown) as shown in step 5, the timing operation of the second timer T2 is started as shown in step 6. Ru.

In step 7, the second timer T2 measures a predetermined time, and as shown in step 8, the drive source driving the conveyor belt 23 is stopped. Also, the second
At the same time as the timer T2 finishes counting the predetermined time, as shown in step 9, the third timer T3 starts counting time until the conveyor belt 23 completely stops. Then, in step 10, when the third timer T3 completes counting the predetermined time, at this point, as shown in step 11, it is detected whether the second document detection sensor S2 is on.

That is, the fact that the sensor S2 is turned on means that the second
means that a document exists in the transport path L2,
In other words, the document is jammed in the second conveyance path L2. In this manner, when the sensor S2 is turned on, a paper jam clearing operation, which will be described later, is performed. Furthermore, when this sensor S2 is turned off, the trailing edge of the document is at least ejected from the sensor S2 in the second conveyance path L2, so it is assumed that the document has been ejected. As shown in step 12, the conveyor belt 23 starts running in the opposite direction.

In other words, at the end of step 10, the document has stopped on the platen glass 2 after having passed the predetermined copying position. For this purpose, I returned the manuscript and
It is necessary to bring it into contact with the stopper 25 that defines the copying position. In this way, step 12 is executed.

At the same time as this reverse feeding of the conveyor belt 23 is started, as shown in step 13, the fourth timer T4, which regulates the time until the document contacts the stopper, starts measuring time. Then, in step 14, this conveyor belt 23
During the reverse feeding, the sensor S2 is monitored to see if it is turned on. In other words, while the conveying belt 23 is being conveyed in the reverse direction, the paper ejection roller 83 is also being reversely conveyed. For this reason, if
In step 11, even if the sensor S2 is turned off, the rear end of the document may be held between the paper ejection roller 83 and the leaf spring 85.

In this case, the original is returned to the paper ejection section 11 in response to the reverse rotation of the paper ejection roller 83. And sensor S
2 will be turned on. In step 14, this ON operation is monitored.

In this way, the fact that the sensor S2 is turned on in step 14 means that there is a document remaining in the paper discharge section 11;
This means that the original has not been completely ejected. Therefore, if the sensor S2 is turned on in the tray 14, it is determined that there is a paper jam, and a paper jam removal operation, which will be described later, is executed. On the other hand, if the sensor S2 is not turned on in step 14, then in step 15, the clocking of the predetermined time in the fourth timer T4 is completed, and the step 1
6, the reverse transport of the conveyor belt 23 is stopped. In this way, the document is accurately stopped at the copying position.

On the other hand, in the paper jam removal operation, as shown in step 17, the conveyor belt 23a stops running, and in step 18, an alarm device (not shown) is activated, so that the operator can notify the operator that a paper jam has occurred in the removal unit 11. Let me know. The alarm from this alarm device prompts the operator to step 19.
As shown in FIG. 2, the original remaining on the paper discharge section 11 is removed.

As described in detail above, when the original is started to be reversely fed on the platen glass 23 in order to bring the original to a predetermined copying position, if the original that has already been copied remains in the paper ejection section 11, This already copied document is also taken into the paper ejection section 11 by the paper ejection rollers 81 and 83, which are rotated in the reverse direction as the conveyance belt 23 is reversely fed. Therefore, in this embodiment, if there is already a copied original remaining in the paper ejection section 11 at the time of starting the reverse feeding of the original, that is, at the start of the reverse feeding of the conveyor belt 23, this original is It is assumed that the paper is a jammed document, and the transport belt 23 is prohibited from starting running, and an alarm is issued to notify the operator that the document has jammed.
It is made known that the manuscript remains. In this way, the original remaining in the paper ejection section 11 is removed from the paper ejection section 11.
This prevents the document from being taken into the device and being damaged.

Furthermore, at the start of reverse transport of the conveyor belt 23, the sensor S2
is not turned on, but the rear edge of the document is not turned on.
and a leaf spring 85. In this case, since the sensor S2 is not turned on, reverse transport of the conveyor belt 23 is started. Therefore, the document is taken into the paper discharge section 11 by the reverse rotation of the paper discharge roller 83. However, in this example,
When the reversely fed original turns on the sensor S2, it is determined that a paper jam has occurred in the paper ejecting section 11, and the transport belt 23 stops running, an alarm is generated, and the operator is instructed to eject the original. It is notified that a document jam has occurred in the paper section 11. In this way, the already copied original remaining in the paper ejection section 11 is prevented from being further taken into the paper ejection section 11 and being damaged.

This invention is not limited to the configuration of the one embodiment described above, and can be modified in various ways without departing from the gist of the invention.

〔Effect of the invention〕

As described above in detail, the document discharging device according to the present invention includes a conveyance means for conveying the document in one direction along the first conveyance path or the other direction opposite to the first conveyance path; a paper ejection means for conveying a document in one direction or the other direction along a second conveyance path provided adjacent to the second conveyance path; a discharging tray provided therein, a driving means for simultaneously driving the conveying means and the discharging means in the circumferential direction, a detecting means disposed in the second conveying path for detecting a document passing therethrough; The apparatus is characterized in that it includes a control means for causing the drive means to prevent the conveyance means and the paper ejection means from conveying the document in the other direction when the means detects the document. Therefore, according to the present invention, there is provided a document discharging device that can prevent document jams from occurring when the conveyance belt runs in the opposite direction.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view schematically showing an ADF equipped with an embodiment of the document ejecting device according to the present invention, and FIG. 2 shows the reversing section and the ejecting section of the ADF shown in the first factor. Front sectional view, Figure 3 shows the drive device of the conveyance path switching device, with the flapper in the third
4 is a side view showing the drive fil shown in FIG. 3 with the flapper in the second position. FIG. 5 is a side view showing the drive H fil shown in FIG. 3. FIG. 6 is a side view showing the conveyance path switching device with the flapper in the third position; FIG. 1 is a side view showing the conveyance path switching device with the flapper in the third position. FIG. 8 is a side view showing the conveyance path switching device with the flapper in the first position; FIG. Control II! 12 is a flowchart for explaining a paper jam detection operation for a document when discharging the document using the ll structure. 23... Conveyance belt (conveyance means), 27... Paper discharge tray, 83... Paper discharge roller (paper discharge means), 89...
Paper discharge control mechanism (control means), Ll...first conveyance path,
S2...Second transport path, S2...Second document detection sensor (detection means). Applicant's agent Patent attorney Takehiko Suzue No. 51i! Figure 6 Figure 1 Figure 81i! -1-]

Claims (3)

[Claims] (1) A conveyance means for conveying a document in one direction or the opposite direction along a first conveyance path, and a second conveyance means provided adjacent to the first conveyance path along the one direction. a paper ejection means for transporting the document in one direction or the other along the transport path; a paper ejection tray provided adjacent to the second transport path along the one direction; a driving means for simultaneously driving the paper means in the circumferential direction; a detecting means provided on the second conveyance path for detecting a document passing therethrough; and a detecting means for detecting a document passing therethrough; What is claimed is: 1. A document discharge device comprising: a control means for preventing the conveyance means and the discharge means from conveying the document in the other direction. (2) The control means detects that the document is on the second conveyance path by the detection means when the drive means attempts to convey the document in the other direction by the conveyance means and the paper ejection means; 2. The document ejecting device according to claim 1, wherein driving by said driving means is prohibited. (3) When the control means detects that the document is on the second conveyance path by the detection means while the drive means is conveying the document in the other direction by the conveyance means and the paper ejection means,
2. The document discharging device according to claim 1, wherein the drive by said drive means is stopped.