JPH0223164A - Paper sheet discharger - Google Patents

Abstract

PURPOSE:To make it possible to copy any number of sheets by one-time copy setting without jamming by discharging the excessive number of copied sheets in a bin by way of transferring to an overflow processing when non-sort mode using only a main tray is selected and a number of sheets exceeding the capacity of this tray are to be copied. CONSTITUTION:At the time of sort mode, by the ascent and descent of a plural number of bins 32, copy paper sheets are discharged in the relevant bins 32. Subsequently, in the case when non-sort mode using only a main tray 33 is selected while a number of paper sheets exceeding the capacity of the main tray 33 are to be copied, they are transferred to an overflow processing and the excessive copied sheets are loaded in a bin 32 right under the main tray 33. When they exceed the capacity of this bin 32, paper sheet discharging processing is practiced with another bin right under it further. Consequently, even in the case when the number of copy sheets exceeding the capacity of the main tray 32 is set, all the number of sheets can be smoothly copied without jamming by one-time copy setting.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a paper ejection device having a shift function and a sorting function suitable for application to plain paper copying machines, etc., and particularly capable of handling overflow in non-sort mode. It is connected to an 11-pin paper ejection device.

[Background of the Invention] When using a paper ejection device in a plain paper copying machine,
Generally, the configuration is as shown in FIG.

In this copying machine 10, 20 is a copying machine main body.

30 is a paper discharge device.

The paper ejection device 30 has a plurality of bins 3 in addition to the main tray 33.
2, and a bin drive section 31 for driving these main tray 33 and bins 32 is provided.

The bin drive section 31 has a bin elevation control means 35, and the main tray 33 and the bins 32 can be moved up and down by this control means 35. 36 is a motor for applying driving force to the control means 35.

Approximately in the center of the drive unit 31 is a sheet of copy paper 1 as shown in the figure.
In addition to the guide plate 39, a paper ejection roller 41 is provided between the guide plate 39 and the main tray 33, and by driving this, the copy paper l is ejected to the main tray 33 or the bin 32. It looks like this.

Moreover, in such a paper ejecting device 30, there are 2+! sorting modes and non-sorting modes. There are various paper output modes,
When the non-sort mode is selected, the copy paper 1 is ejected using only the main tray 33.

On the other hand, in sort mode, main tray 3
3 as one bin, and the remaining bin 32
A set number of copy sheets 1 are ejected. Therefore, when the last bin is used, the bin 32 is raised to the state shown in FIG. 8 by driving the bin elevation control means 35.

[Problems to be Solved by the Invention] By the way, in the paper ejection device 30 configured as described above, when the non-sort mode is selected, the copy paper 1 is stored only in the main tray 33. The number of copies that can be stored in the main tray 33 is usually 150 to 2.
It is about 00 pieces.

Therefore, if you try to copy more than that,
First, set the maximum number of sheets that can be accommodated in the main tray 33, and after the maximum number of sheets that can be accommodated is completed, copy paper is placed in the main tray 33.
3, then set the remaining number of copies again and copy.

Therefore, when making copies that exceed the number of sheets accommodated in the main tray 33, the operation is extremely troublesome.

Furthermore, if the user sets the number of copies that exceeds the number of sheets that can be accommodated in the main tray 33, there is a risk that the copy paper that has overflowed from the main tray 33 will overflow outside, and in such a case, the copy paper 1 may be jammed. It was sometimes the cause of

Therefore, the present invention proposes a paper ejecting device in which when more copies are made than the number of copies stored in the main tray, the remaining number of copies are automatically ejected to the bin 32 by performing overflow processing. .

[Means to solve the problem] Above! ! In order to solve this problem, the present invention has a main tray and a plurality of bins, and in the sort mode, copy paper is ejected to the corresponding bin by raising and lowering the plurality of bins, and only the main tray is used. In the non-sort mode, when more copies are made than the number of copies stored in the main tray, overflow processing is performed so that the remaining number of copies are discharged into the bin.

[Function] When the non-sort mode in which only the main tray 33 is used is selected, and the number of copies set is greater than the number of sheets accommodated in the main tray 33, the following process is automatically executed.

That is, when more copies have been made than the number of sheets stored in the main tray 33, a transition is made to overflow processing, and the remaining number of copies are discharged to the bin 32 located directly below the main tray 33.

When the storage capacity of the bin 32 is exceeded, an overflow process is sequentially executed so that the paper ejection process is executed for the bin 32 immediately below the bin 32.

As a result, the number of copies to be set in the non-sort mode can be significantly increased compared to the conventional method.

Of course, even in this state, the copy paper will not fall outside or cause a jam due to overflow of the copy paper.

[Example] Next, a paper discharge device having a sheet function and a sorting function according to the present invention will be described in detail with reference to FIG. 1 and subsequent figures.

As the sheet ejecting device described below, a sheet ejecting device having a shifting function in addition to a sorting function is used.

The paper ejecting device having a shift function is as follows.

In other words, the paper ejection mode is shifted to a direction different from the normal ejection direction of copy paper for each bin.・If the mode in which sheets are normally ejected in the sheet ejecting direction is the non-shift mode, the sheet ejecting device according to the present invention can use this shift mode in addition to the above-mentioned sheet ejecting modes (sort mode, group mode). A paper ejection mode has been added.

If this shift mode is used, for example, as shown in FIG. 2A, copy sheets stored in odd-numbered bins and copy sheets stored in even-numbered bins can be ejected with their leading edges 1a different. I can do it.

As a result, even if multiple bins of copy paper are taken out at the same time, the leading edge of each copy paper will be different depending on the bin, as shown in Figure B, so the correspondence between the bin and the copy paper stored in it will be The relationship becomes clear,
There is no need to sort and separate each copy paper again.

In other words, when storing copy paper in multiple bins in non-shift mode as in the past, the leading edge!
Since a is all lined up as shown in Figure 3A, if multiple bins of copy paper are taken out at the same time, their leading edges will be perfectly aligned as shown in Figure 3B. This is because it is necessary to identify each copy paper each time to sort it. By using this shift mode, it becomes possible to more easily sort copy sheets.

In order to realize such a shift mode, it is necessary to configure a biasing means 40 for the discharge roller shaft as shown in FIG. An example is shown below.

In this example, a case is illustrated in which the paper ejection means is configured by three paper ejection rollers (41a to 41C).

The paper ejecting roller 41 is accommodated within the roller mounting means 42. As shown in the figure, the roller mounting means 42 has a concave portion in the center, and bearing portions 43 (43a
~43C) is formed, and the shaft of the paper ejection roller 41 is fitted here.

The roller mounting means 42 has a shaft 44 on the lower right center surface of the means 42.
(44a to 44C) are integrally provided, and although not shown, are rotatably pivoted to a substrate for attaching a paper ejection roller.

A lever 45 (4
5a to 45C) are provided. On the other hand, an operating lever 50 is disposed below these levers 45a to 45c, and the operating lever 50 has projections 151a to 51c, respectively.
are integrally formed. When the lever 45 is in the position shown in the figure, it is assumed that the lever 45 and the protrusion 51a are in contact with each other.

The operating lever 50 is regulated in the direction of arrow C by a movement control means 55 such as a solenoid.

Now, when the paper ejection roller shaft biasing means 40 is configured in this way, the paper ejection roller 4 is in the state shown in FIG.
1 is driven, the direction in which copy paper l is ejected is as indicated by arrow a.

In response, the solenoid 55 is energized and operated, and the bar 5
0 in the direction of arrow C, the paper discharge roller 41 moves to the fifth position.
As shown in the figure, it is tilted by a predetermined angle θ. As a result, the ejecting direction of the copy paper l that is tJL by these drive rollers 41 is also tilted by θ.

As a result, the copy paper discharged to the bin 32 is placed in the fourth
・In this example, the paper ejection mode in which the paper is ejected in the paper ejection direction as shown in Fig. 4 is called the non-shift mode, and the paper ejection mode in which the paper is ejected in the paper ejection direction as shown in Fig. 5. The paper ejection mode in which paper is ejected is called the shift mode.

By changing the direction of the paper discharge roller 41 in this manner, it becomes possible to shift the leading edge 1a of the copy paper 1 stored in the bin 32. The extent to which the tip 1a is shifted is determined by the displacement angle θ and the paper feed amount shown in FIG.

In the present invention, a paper discharge control means 60 as shown in FIG. 1 is used to execute overflow processing for the main tray.

In the paper ejection control means 60 shown in the figure, 61 is a CPU that controls the entire system, and 62 is a ROM in which a control program is stored.

The CPU 61 is controlled in accordance with key input from an operation panel provided on the main body 20 of the copying machine. In FIG. 1, typical keys are shown.

63 is a sort key, 64 is a group key, 65 is a non-sort key, and 66 is a shift key.

Here, the sort key 63 refers to a key for realizing a sort mode, and when copying using multiple bins, the sort key 63 is a key for realizing a sort mode.
This is a mode in which the copy paper is ejected at the same time, and each copy paper can be stored in each bin.

On the other hand, the group key 64 is a key for realizing copying in group mode. The group mode is a mode in which multiple copies of the same page are made and output into the same bin.

The key inputs of these plurality of keys 63 to 66 are taken into the CPU 61 via interfaces 67 to 70, respectively, and control according to the operation keys is executed.

Further, the paper ejection roller shaft biasing means 40 is driven via the interface 71 based on a command from the CPU 51 in accordance with the key manual power, and the corresponding paper ejection mode is realized. Similarly, a command signal from the CPU 61 is supplied to the bin elevation control means 35 via the interface 72, which is driven as desired to discharge the copy paper 1 into the corresponding bin 32.

FIG. 6 is a flowchart showing an example of the overflow processing routine 60.

First, it is checked whether the paper discharge mode is sort mode or non-sort mode, and if it is non-sort mode, it is checked whether the number of sheets accommodated in the main tray 33 has exceeded (steps 61 and 62).

You can check whether the number of accommodated sheets has exceeded the number of accommodated sheets or not by checking the operation details of the number setting key, but it is also possible to determine whether the number of accommodated sheets has been exceeded by checking the number of sheets of copy paper that is actually ejected. I can do it.

If more copies have been made than the number of sheets accommodated in the main tray 33, the overflow mode is set, and the above-mentioned bin elevation control means 35 operates to raise the bin 32 by one bin (steps 63 to 65).
By doing this, excess copy paper is discharged to the first bin 32 located directly below the main tray 33.

Furthermore, when this first stage bin 32 is used,
If the capacity of bin 32 is exceeded, the capacity of bin 3 will be increased.
2 is raised by one bin and the copy paper is discharged to the next bin 32 (step 64.6).
5) Usually, the number of sheets that can be stored in one bin is 50 to 10.
There are about 0 pieces.

Then, while continuing such processing, it is determined whether the number of copies has been reached, and when the number of copies has been reached, this overflow processing routine is exited (step 6).
6).

In this case, if the number of sheets stored in the main tray 33 is 150 sheets, the number of sheets stored in each bin 32 is 50 sheets, and the number of bins 32 is 20, all the bins 32 can be used. Considering this, it is possible to sufficiently cover the number of copies required in normal use.

In this way, when the main tray 33 is set so that more copies can be made than the number of sheets stored in the main tray 33, and it is detected that the number of sheets stored has overflowed, the overflow process is immediately executed, so that the copy paper does not overflow to the outside. This can also prevent jams from occurring.

[Effects of the Invention] As explained above, in the present invention, when the non-sort mode that uses only the main tray is selected, when more copies are made than the number of sheets that can be stored in the main tray, overflow processing is immediately performed. ,
The remaining number of copies are ejected into the bin.

According to this, even if the number of copies is set to be greater than the number of copies accommodated in the main tray, it is possible to copy all the copies in one copy set.

In addition, overflowing paper does not fall outside and jams do not occur due to this, which is very convenient for practical use.

Therefore, the paper ejecting device according to the present invention is extremely suitable for application to the above-mentioned plain paper copying machine.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a configuration diagram showing an example of a paper ejection control means which is a main part of the paper ejection device according to the present invention, Fig. 2 is a diagram for explaining the shift mode, and Fig. FIGS. 4 and 5 are diagrams for explaining the conventional non-shift mode, and FIGS. 4 and 5 are configuration diagrams showing an example of a discharge roller shaft biasing means. FIG. 6 is a flowchart showing an example of an overflow processing routine, and FIGS. FIG. 8 is a configuration diagram showing an example of a copying machine using a paper ejecting device. Copying machine Copying machine main body paper ejection device Bin drive unit Bin main tray Bin elevation control means 40 - Paper ejection roller axis biasing means 4 l - Paper ejection roller unit; 1111'' 4 bottles 1 bottle 2 bottles 3 bottles Fig. 60 Nioper flow treatment routine Fig.

Claims (1)

[Claims] (1) It has a main tray and a plurality of bins, and in the sort mode, copy paper is ejected into the corresponding bin by raising and lowering the plurality of bins, and in the non-sort mode in which only the main tray is used, the main A paper ejecting device characterized in that when more copies are made than the number of copies stored in a tray, an overflow process is performed so that the remaining number of copies are ejected to the bin.