JPH03143868A - Discharged paper disposing device - Google Patents

Abstract

PURPOSE:To freely select the process of stacking sheets with their printing faces up or down by providing at the branch portion of a form conveyance passage and a form reversing passage a switching means capable of switching forms from first to second processing state or vice versa. CONSTITUTION:When a first processing state is selected by a switching means 36 a form entering a discharged paper disposing device through the gate 31a of a form conveyance passage 34 is conveyed to a discharge opening 31b and discharged therefrom while the direction of its printing face is unchanged. When a second processing state is selected a form is temporalily introduced into a form reversing passage 35 before it is conveyed to the discharge opening 31b, and then the form is conveyed from its rear end side in the direction opposite to that when it is introduced, and guided toward the discharge opening 31b and discharged, and when the form is conveyed again from its rear end in the opposite direction both sides of the form are reversed upside down and the form is discharged while in the reversed state. The form is thus disposed while the directions of both sides of the form are freely selected by the switching means 36.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an ejected paper processing device that sequentially stacks and processes sheets ejected from an apparatus main body, such as an electronic copying machine or a printer, at a predetermined position.

<Prior Art> Figure 3 shows an example of a conventional paper ejection processing system that includes the internal structure of a general electronic copying machine and a paper ejection device that sequentially stacks and processes sheets ejected from the electronic copying machine. FIG. 2 is a schematic configuration diagram shown in FIG.

In the figure, inside an apparatus main body 1 as an electronic copying machine, there is a photoreceptor 2, a charger 3 that uniformly charges the photoreceptor 2, and a latent image that is written on the photoreceptor 2 according to an input signal. a developing unit section 5 that develops the latent image with toner;
A recording mechanism using a well-known electrophotographic recording method is housed, such as a photo charger 6 that transfers the toner image onto the paper, and a fixing unit 7 that fixes the transferred toner image on the paper. The paper ejection section 4 of the main body 1 is provided with a plurality of (two in this embodiment) paper ejection roller pairs 8, and the paper on which the toner image has been fixed in the fixing unit section 7 is transported by the paper ejection roller pairs 8. is sent to the discharge port 1a, and this discharge port 1
It is designed to be discharged to the outside of the apparatus main body 1 from a point a. In this case, the paper is discharged from the discharge port 1a with the printed side facing up.

On the other hand, on the outside of the main body 1 of the apparatus, a paper ejecting device 9 is provided as a unit for sequentially stacking and processing the sheets ejected from the ejecting port 1a. This paper ejecting device 9 is provided with a plurality of ejected paper stacking members 10 stacked apart from each other in the vertical direction, and these ejected paper stacking members IO are raised and lowered by a motor (not shown) and sequentially placed at the ejection port 1a. The discharged sheets are sequentially placed on the discharged sheet stacking member 10 that has been moved to the discharge port 1a, and sorted. In the case of this paper ejection device 9, sheets ejected from the ejection port 1a with the printed side facing up are stacked on the ejected paper stacking member 10 with the printed side facing up.

Next, FIG. 4 shows a paper reversing device 1 which is also unitized between the device main body 1 and the paper ejecting device 9 shown in FIG.
1 shows an example of a conventional paper ejection processing system provided with the following. In FIG. 4, the same reference numerals as those shown in FIG. 3 indicate the same components as in FIG.

In the paper reversing device 11 in the paper ejection processing system shown in FIG. 4, a paper reversing path 12 into which the paper is temporarily introduced is placed in the middle of the paper transport path 19 through which the paper ejected from the ejection port 1a is sent. is provided.

A fixed roller 1 is provided at the entrance of the paper reversing path 12.
6 and a movable roller 17 are provided. Of these, the movable roller 17 can be brought into contact with and separated from the fixed roller 16 by switching the swing of a swing lever 18. Also, a paper conveyance path 19 facing the entrance portion of the paper reversal path 12 is provided.
A part 19b of the movable roller 17 (I!

In the paper reversing device 11 configured as described above, the movable roller 17 is normally held in a state separated from the fixed roller 16. In addition, in this state, with the printed side facing up, place the discharge port 1a
When the paper is ejected, the paper passes through the input row side passage 19.
It is sent by a pair of drive rollers 20 in a. When the paper is fed to a part 19b in the paper transport path 19, this part 19b
Due to the bent shape of the sheet, the sheet is once introduced into the sheet reversing path 12. Further, when the trailing edge of the paper is completely introduced into the paper reversing path 12, it stops. At the same time, the swinging lever 18 is rotated clockwise in the figure, and the movable roller 17 is brought into contact with the fixed roller 16. Next, the motor (not shown) is driven to rotate in the reverse direction. For reversing! 812
The inner paper feed roller also rotates in the opposite direction, and the paper is transported in the opposite direction to the direction in which it was introduced, and is ejected from the paper reversal path 12. At this time, the movable roller 17 is moved by the front swing lever. The paper conveyance path 19 is
The paper ejected from the paper reversing passage 12 moves to the exit passage 19c side beyond a portion 19b of the paper and comes into contact with the fixed roller 16, so that the paper ejected from the paper reversing passage 12 reaches the exit passage 19cll! ll, and is further discharged from the discharge port 11a via a pair of rollers 22 and 23. Further, when the paper is discharged from the reversing path 12, the paper is reversed so that the printed side is from upward to downward. Then, in this inverted state, the sheets are sequentially ejected to the paper ejecting device 9, and the sheets are stacked on the ejected paper stacking member 10 with the printed side facing down.

As a result, the paper is ejected.

Next, FIG. 5 shows another example of a conventional paper discharge processing system using a paper discharge device that is a partially modified version of the paper discharge device 9 shown in FIG. In Fig. 5, Fig. 3,
Those shown with the same reference numerals as those shown in 4th [ ] indicate the same parts as in the 3rd UA and FIG. 4.

In the paper discharge device 14 in the paper discharge processing system shown in FIG. 5, unlike the structure shown in FIGS. 3 and 4, the paper discharged from the discharge port 1a of the main body 1 is transferred to
4a, 24b'? 'Guide to the opposite side of the discharged paper stacking member 10,
Then, by sequentially stacking the sheets on the ejected sheet stacking member 10 from the opposite side, the ejected sheets with the printed side facing upward can be stored with the printed side facing down. This is what I did.

<Problems to be Solved by the Invention> However, in the conventional paper ejecting devices 9 and 14 shown in FIGS. The structure was not designed to allow for easy switching between facing and storing. For this reason, the paper can only be discharged in one of two ways: stacked with the printed surface facing upward or stacked with the printed surface facing downward, which is very inconvenient in use.

The present invention has been made in view of the above-mentioned problems, and its purpose is to freely stack ejected paper sheets with the printed side facing upward and stacking them downward with a simple switch. An object of the present invention is to provide a discharged paper processing device that allows selection.

Means for Solving the Problems> In order to achieve the above object, the discharge paper processing device according to the present invention has the following features:
A paper transport path, a main transport means for transporting the paper toward the discharge port of the paper transport path, and a paper reversing path that branches off from the middle of the paper transport path and is provided in a state where the paper can be introduced. an auxiliary conveying means for introducing the paper guided into the paper reversing path and transporting it in the opposite direction to the direction of introduction and returning it into the paper transport path; the paper transport path and the paper reversing path; A first process R is provided at a branching point between the sheet reversing path and the first process R that guides the sheet directly to the discharge port without introducing it into the sheet reversing path, and a first process R that guides the sheet to the sheet reversing path side from within the sheet reversing path. The apparatus includes a switching means capable of switching to a second processing mode in which the paper returned to the paper transport path is guided to the discharge port side.

According to this configuration, when the switching means switches to the first processing mode, the paper that enters from the entrance of the paper conveyance path is conveyed to the discharge port and discharged with its printed side facing the same direction. . On the other hand, when switching to the second process R, the paper is once introduced into the paper reversing path on the way to the ejection port, and is then transported from the rear end side in the opposite direction to that when it was introduced. The paper is guided toward the ejection port and ejected, but when it is once introduced into the paper reversal path and conveyed in the opposite direction from the trailing edge again, the front and back sides of the paper are reversed upside down, and this reversal occurs. It is discharged in a state that is

Therefore, by simply switching the conveyance state of the paper between the first processing mode and the second processing mode using the switching means, the paper can be stacked with the front side facing upward, and vice versa. You can freely select the orientation of the front and back sides of stacked sheets, such as stacking them.

<Example> Hereinafter, an example of the present invention will be described in detail using the drawings.

FIG. 1 is a schematic configuration diagram showing an example of the discharge paper processing apparatus according to the present invention applied to a discharge paper processing system in a general electronic copying machine, and FIG. 2 is a partially enlarged view of FIG. 1. It is.

Further, in FIGS. 1 and 2, the same reference numerals as in FIGS. 3 to 5 indicate the same parts as in FIGS. 3 to 5. That is, the internal structure of the apparatus main body 1 as an electronic copying machine shown in FIGS. 1 and 2 is the same as the internal structure of the apparatus main body 1 shown in FIGS. 3 to 5. Further, the discharge paper processing device 30 according to the present invention has a discharge port 1a of the device main body 1.
It is provided in response to the

The paper discharging device 30 includes a first discharging processing section 31 and a second discharging processing section 32, which are generally unitized with each other.
It is made up of. Among these, the second paper discharge processing section 32
has the same structure as the paper discharging device 9 shown in FIGS. 3 and 4, and has a plurality (10 in this embodiment) of discharging paper stacking members 33 stacked vertically apart from each other. ing. Then, each of these discharged paper stacking members 33 is raised and lowered by the driving force of a motor (not shown), and is placed in the first discharge processing section 3.
The sheets are individually moved to a position corresponding to the discharge port 31b of No. 1, and the sheets are sequentially stacked on the discharged sheet stacking member 33 that has been moved to this discharge port 31b, and the sheets are sorted.

On the other hand, the first paper discharge processing section 31 is located between the apparatus main body 1 and the second paper discharge processing section 32. Inside the first paper discharge processing section 31, a paper transport path 34, a paper reversing path 35, a switching means 36, and the like are arranged.

More specifically, the paper conveyance path 34 is defined by guide walls 34a and 34b that are vertically spaced apart and parallel to each other, and has an entrance 31a at a portion corresponding to the discharge port 1a of the apparatus main body 1. The space from the population 31a to the discharge port 31b is connected as one. Further, this paper conveyance path 34 includes an entrance side passage section 34A and an exit side passage section 34A.
It is divided into two parts: 4B. And each passage section 34A
, 34B are provided with drive roller pairs 37, 38, 39, 40, 41 that are rotated by the driving force of a motor (not shown). Each of these drive roller pairs 37 to 41 constitutes a main conveyance means within the paper conveyance path 34, and each of the drive roller pairs 37 to 41 constitutes a
, 34B, the paper is sent to these drive roller pairs 3.
The paper sheets 7 to 41 are successively fed by rollers and transported to the discharge port 31b side.

The paper reversing passage 35 is a connecting portion between the entrance passage 34A and the exit passage 34B, and is defined by a conveyor belt 42 and a guide wall 43 provided opposite to the conveyor belt 42, and is defined by a conveyor belt 42 and a guide wall 43 provided opposite to the conveyor belt 42. It is provided in a branched and hanging state below the path 34. In addition, the conveyor belt 42
constitutes an auxiliary conveyance means in the paper reversing path 35, and includes three driving rollers 444 arranged vertically and vertically.
The hook is passed around the outside of 5.46. And 3
two drive rollers 44.45. - 46 is rotated by the driving force of a motor (not shown) that rotates in both forward and reverse directions, this conveyor belt 42 also rotates in a direction corresponding to the direction of rotation of the drive rollers 44, 45, and 46. There is. on the other hand,
On the guide wall 43 side, idlers 47, 48, and 49 are provided at positions corresponding to the drive rollers 44, 45, and 46. These idlers 47, 48, 49 are pressed against the drive rollers 44, 45, 46 via the conveyor belt 42, respectively, and are rotated together with the conveyor belt 42.

Next, the switching means 36 is provided at a branching portion between the paper conveying path 34 and the paper reversing path 35, and is composed of a first paper guide member 50 and a second paper guide member 51. Of these, the first paper guide member 50 is attached to the support shaft 52 so as to be integrally rotatable in a state substantially directly above the paper reversing path 35 and above the paper transport path 34 . Note that the rotation of the support shaft 52 is controlled by a solenoid (not shown). Further, the first paper guide member 50 is integrally formed with a flat portion 50a and a protrusion 50b, and both left and right side surfaces 50c and 50d of the protrusion 50b draw a gentle arc toward the inside. It is bent. This first paper guide member 5
0, when the protrusion 50b is placed facing directly above, the flat part 50a is aligned with the upper surface of the paper conveyance f ¥834 in a roughly image shape, and then it is further rotated about 180 degrees so that the protrusion 50b hangs downward. When in the state, the tip of the protrusion 50b is configured to cross the paper transport path 34 and enter the paper reversing path 35.9 On the other hand, the second paper guide member 51
It is located below B, and one end side is attached to the support shaft 53 so as to be integrally rotatable. Note that this support shaft 53 is rotatable under the control of a solenoid (not shown). As a result of this rotational movement, the second paper guide member 51 is moved so that its other end crosses the paper reversing path 35 and moves along the lower surface of the paper transport path 34, as shown in FIGS. 1 and 2(a). It is possible to switch between a first position where the sheet reversing path 35 is located and a second position where the sheet reversing path 35 is located as shown in FIGS. 2(b) and 2(c). Also, this second paper guide member 51 is in the first position, that is, the paper transport path 34
When placed along the lower surface of the sheet reversing path 35, the entrance of the sheet reversing path 35 is closed.

In a paper discharge processing system using the paper discharge processing device 30 configured in this manner, the paper recorded in the main body 1 of the apparatus is normally discharged with the printed side facing upward, but this is controlled by a solenoid (not shown). By switching the rotational positions of the first paper guide member 50 and the second paper guide member 51 in the switching means 36, the paper can be stacked on the discharged paper stacking member 33 with the printed side facing upward, or stacked with the printed side facing downward. It can be stacked. Next, this operation will be explained.

First, when sheets of paper discharged from the discharge port 1a of the apparatus main body 1 with the printed side facing upward are stacked face up on the discharged paper stacking member 33 of the second discharged paper processing section 32,
As shown in FIGS. 1 and 2(a), the first paper guide member 50 is switched under the control of the solenoid so that the flat portion 50a is disposed along the upper surface of the paper conveyance path 34, and , the second paper guide member 51 is arranged along the lower surface of the paper transport path 34, and the entrance of the paper reversing path 35 is switched to a closed state. Then, the paper sent from the entrance 31a is roller-fed by each drive roller pair 37 to 41 and sequentially transported within the paper transport path 34. At this time, since the entrance of the paper reversing passage 35 is closed by the second paper guide member 51, the paper is not introduced into the paper reversing passage 35 and is conveyed as it is to the discharge port 31b. Then, the sheets are further discharged and stacked on the discharged paper stacking member 33 of the second discharged paper processing section 32 with the printed side facing upward. That is, the paper is conveyed and discharged in the first processing mode.

Further, during this paper ejection process, if the elevating and lowering of the ejected paper stacking member 33 is controlled by means not shown, the pages can be aligned and a required number of copies of materials can be produced.

Next, the paper discharged from the discharge port 1a of the apparatus main body 1 with the printed side facing upward is changed to the second paper with the printed side facing downward.
When stacking the discharged paper sheets on the discharged paper stacking member 33 of the discharged paper processing section 32, first, as shown in FIG. 2(b), the first paper guide member 50 and the second paper guide member 51 are control each. That is, the first paper guide member 50 is arranged with the plane part 50a facing upward, the projection part 50b hanging down across the inside of the paper transport path 34, and the side surface 50c arranged directly above the paper reversing path 35. be brought into a state of On the other hand, the second paper guide member 51 is rotated counterclockwise in the figure, and the second paper guide member 51 is
, that is, outside the paper reversing path 35. At the same time, the conveyor belt 42 receives the rotational force of a motor (not shown) via drive rollers 44, 45, 46, and begins to rotate clockwise in the figure. In this state, when paper is sent from the paper feeder 31a, it is sent by the drive roller pair 37 and 38 to the discharge port 31b.
transported towards the side. Further, when the paper is fed to the position of the switching means 36, the leading edge of the paper hits the side surface 50C of the first paper guide member 50, and is directed downward by the curved shape of the side surface 50c. Then, the leading edge of the paper advances toward the space between the conveyor belt 42 and the idler 47, and the rotation of the conveyor belt 42 and the idler 47 causes the paper to move toward the paper reversing path 3.
5, and when the rear end of the paper has been introduced into the paper reversing path 35, the conveyor belt 4
The rotational movement of No. 2 is temporarily stopped. At the same time, the solenoid is driven to slightly rotate the first paper guide member 50 in the clockwise direction in FIG. 2(b), and as shown in FIG. 50d is switched to a state where it is located directly above the paper reversing path 35. When this switching is completed, the conveyor belt 42 is rotated again. In this case, the paper is rotated in the opposite direction from when it was conveyed into the paper reversing path 35, and as a result, the paper is rotated from the trailing end toward the paper conveyance path 34, opposite to when it was introduced. As the paper is being conveyed, and when it is sent to the switching means 36, the leading edge of the paper (the trailing edge at the time of introduction)
hits the side surface 50d of the first paper guide member 50, and the curved shape of the side surface 50d directs the paper toward the exit passage 34B, and the paper is conveyed into the exit passage 34B. The back side will be upside down. In the exit side passage section 34B, each drive roller pair 39, 4
The paper is sequentially sent to the discharge port 31b side by the roller feed of 0.41, and then the discharged paper stacking member 33 of the second discharged paper processing section 32
They are ejected and stacked with the printed side facing down.

That is, the paper is transported and discharged in the second processing mode. Note that when the −th sheet of paper has been conveyed into the exit side passage section 34B, the solenoid is driven again, and the first paper guide member 50 is slightly rotated counterclockwise in FIG. Then, the side Oc of the first paper guide member 50 is positioned directly above the paper reversing path 35 as shown in FIG. This same operation is then repeated one after another. Then, on the discharge paper stacking member 33 of the second discharge paper processing section 32,
Paper is stacked with the printed side facing down. Also, during this paper ejection process, the ejected paper stacking member 3 is
By controlling the lifting and lowering of 3, you can align the pages and create the required number of copies of the material.

Therefore, in the discharged paper processing apparatus according to this embodiment, the first paper guide member 50 which has the switching means 36
．． When the second paper guide members 51 are respectively controlled, the first process aa! guides the paper discharged from the apparatus main body 1 to the discharge port 31b without introducing it into the paper reversing path 35. Then, it is possible to switch to a second process R in which the sheet is introduced into the sheet reversing path 35 and then returned from the sheet reversing path 35 to the discharge port 31b. In the first processing mode, the paper that has been ejected from the main body 1 of the apparatus is directly placed on the ejected paper stacking member 33 of the second ejected paper processing section 32 without turning the front and back sides of the inner paper upside down. Can be stacked. On the other hand, in the second processing mode, when the paper discharged from the apparatus main body 1 is introduced into the paper reversing path 35 and returned to the paper transport path 34 from the rear end side,
The front and back sides of these papers are stacked upside down,
In other words, by switching the switching means 36, it is possible to freely select the direction of the front and back sides of the stacked sheets to be processed upward or downward, making it easier to process the ejected sheets and improving work efficiency. I can figure it out.

Note that when carrying out the present invention, the number of discharged paper stacking members 33 is not limited to the number shown in the structure of this embodiment, and can be freely set to one or more.

Further, in this embodiment, the discharge paper processing device 30 is connected to the device main body 1.
Although the structure provided for external measurement has been described, this may be incorporated into the main body 1 of the apparatus and configured as an integral part.

<Effects of the Invention> As explained above, according to the discharge processing device according to the present invention, by simply switching the paper conveyance state between the first processing mode and the second processing mode using the switching means, the front side can be processed. The orientation of the front and back sides of the stacked sheets can be freely selected and processed, such as stacking them facing upwards, or conversely stacking them with their back sides facing upwards. As a result, it becomes easier to process the paper 111 taken out from the apparatus main body, and work efficiency is improved.

[Brief explanation of the drawing]

Figure 1 4. FIG. 2(a) is a general Qm diagram showing an example of a paper discharge processing system formed by applying a paper discharge device according to the present invention.
, (b), and (c) are enlarged views of the main parts of Fig. 1, Fig. 3 is a schematic configuration diagram showing an example of an ejected paper processing system using a conventional ejecting device, and Fig. 4 is an enlarged view of the main parts of Fig. 1. Fig. 5 is a schematic configuration diagram showing an example of a discharged paper processing system formed by applying another conventional paper discharge device. It is a diagram. 30... Paper discharge processing device, 31a9. ·entrance. 31b...Discharge port, 34...Paper conveyance path. 35...Paper reversing path, 36...Switching means. 37.38, 39, 40.41... Drive rollers constituting the main conveyance means. 42...Conveyance belt constituting auxiliary conveyance means.

Claims (1)

[Scope of Claims] A discharged paper processing device that stacks sequentially fed sheets at a predetermined position and processes them, comprising: a paper conveyance path; and a main conveyance means that conveys the sheets of paper toward a discharge port of the paper conveyance path. a paper reversing path branched from the middle of the paper transport path in a state where the paper can be introduced; and a paper reversing path that introduces the paper guided into the paper reversing path and that is opposite to the direction in which the paper is introduced. an auxiliary conveying means for conveying the sheet in the direction of the paper conveying path and returning it into the sheet conveying path; and an auxiliary conveying means provided at a branching part between the sheet conveying path and the sheet reversing path, and carrying the sheet as it is without introducing the sheet into the sheet reversing path. A first processing mode in which the paper is guided to the paper reversal path, and then returned to the paper transport path from within the paper reversal path, and a second processing mode in which the paper is guided to the ejection port.
What is claimed is: 1. A discharged paper processing device comprising: switching means capable of switching between processing modes;