JPS63106269A - Paper discharge device for copying machine - Google Patents

Abstract

PURPOSE:To promote the reduction of area for setting a device, by providing a discharge paper tray, which contains copying paper finishing a process of copying, to be built in a copying machine main unit and enabling the copying paper to be drawn out in a direction at a right angle with the conveying direction of the copying paper. CONSTITUTION:One of the feed paper cassettes 5a-5c is selected, and paper is fed to a copying machine main unit 1a, transferring a picture in a transfer device 9 from a sensitive drum 8 to be fixed in a fixing device 11. The paper, finishing a process of copying, is discharged by rollers 12, 13, 15 and a conveying path 14 onto a discharge paper tray 2a built in the copying machine main unit 1a, being piled. The discharge paper tray 2a can be drawn out by guide rails 16 in a direction at a right angle with the conveying direction of the copying paper, that is, from the side surface of the copying machine main unit 1a. In this way, the area for setting a device is saved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rational installation location of a paper output tray for storing copy paper that has been copied.

PRIOR ART AND PROBLEMS THEREOF In conventional copying machines, copied copy paper that has undergone transfer and fixing processing is generally discharged onto a copy paper stock board called a paper discharge tray via a paper discharge roller.

Such a paper output tray is generally provided in a state that protrudes outward from the side of the copying machine body, and therefore,
Even if the dimensions of the copying machine body were somewhat reduced, the overall space in which the copying machine was installed could not be reduced.

In addition, in the case of a copying machine having a double-sided copying function or a composite copying function, an intermediate tray device for temporarily stocking copy paper inside the copying machine body, such as an intermediate tray device described in Japanese Patent Laid-Open No. 61-69630, is used. Some machines are known that are equipped with a tray, but such intermediate trays are used to temporarily store copy sheets that have not yet been copied, and are not used to store copy sheets that have already been copied.

OBJECTS OF THE INVENTION Accordingly, an object of the present invention is to reduce the installation space of the entire copying machine by devising the installation location of the so-called paper output tray that stores the copy paper that has been copied inside the copying machine main body. It is an object of the present invention to provide a paper ejecting device for a copying machine in which handling of such a paper ejecting tray is facilitated.

Structure of the Invention In order to achieve the above-mentioned object, the main means adopted by the present invention is to incorporate a paper output tray into the main body of the copying machine for accommodating copy paper that has undergone copy processing, and to use the paper output tray as a storage tray for storing copy paper. This invention relates to a paper ejecting device for a copying machine that can be freely pulled out in a direction perpendicular to the conveyance direction.

The copy paper that has been subjected to the copying process is discharged to a paper discharge tray housed within the main body of the copying machine. The paper output tray is not provided protruding from the copying machine main body, but is located inside the copying machine main body.
For example, the bottom of the copier body.

Although the main body of the copying machine becomes slightly larger in the height direction, the structure is such that almost no installation space is wasted. Further, the ejected copy paper can be taken out by pulling out the paper ejection tray in a direction perpendicular to the conveyance direction of the copy paper.

Next, an embodiment embodying the present invention will be explained with reference to the attached drawings, and for the purpose of understanding the present invention, FIG. 1 shows an entire copying machine according to an embodiment of the present invention. FIG. 2 is a front sectional view showing an example in which the present invention is applied to a copying machine equipped with only a single-sided copy function, and FIG. 3 is a double-sided copy function equipped with a paper ejecting device according to another embodiment. A front sectional view of a copying machine having a 4th FI! J is the 31st! It is a 3rd VIJ equivalent figure which shows the modification of the Example shown in [.

Note that the following example is only one specific example of the present invention, and is not intended to limit the technical scope of the present invention.

In each of the copying machines according to the following embodiments, a paper output tray 2 is provided near the bottom of the copying machine main body l as shown in FIG. There is. The direction in which the paper output tray 2 is pulled out is as shown in the figure (a direction perpendicular to the direction in which the copy paper is conveyed,
That is, the side plate 3 of the paper output tray 2 is exposed at the front of the copying machine main body 1 in the direction toward the operator, and the paper output tray 2 can be removed without opening the front cover 4 of the copying machine main body 1. can be pulled out as shown.

Next, a main body 1 of a copying machine having a one-sided copying function as shown in FIG.
Next, a case will be described in which a front-exit type paper discharge tray 21 as described above is provided.

2nd Vl! In the copying machine main body 11 shown in J, the copy paper taken out from, for example, 5e of the paper feed cassettes 5@, 5y-5c provided in three stages passes through the paper feed path 6 and reaches the registration roller rough. Here, it is sent to the transfer section 9 in synchronization with the rotation of the photosensitive drum 80, and after the toner image is transferred thereto, it is sent to the fixing roller 11 by the conveyor belt 10. The heat-fixed copy paper is moved between the feed roller 12) and the guide rollers 13, 13).
Through the guide passage 14 provided with..., the copying machine main body 1. Paper output tray built into the bottom of the 2. The paper is ejected from the paper ejection roller 15 to.

the above! #, w & tray 2. Copy machine 1. at the bottom of the copy paper, perpendicular to the conveying direction of the copy paper (perpendicular to the paper surface in Figure 2)
The copy paper is slidably supported only in the direction perpendicular to the conveying direction of the copy paper by the support rail 16 in the direction of .As shown in FIG. You can easily remove the copied copy paper stored inside by pulling it out in the direction of .

A built-in paper ejection tray that can be easily pulled out toward the front without opening the front cover 4 is described below. It is also applicable to a copying machine having a double-sided copying function as shown in FIG.

For example, in the example shown in FIG. 3, the output tray 2b, which is supported at the bottom of the copying machine main body by a support rail 16 so as to be slidable in a direction perpendicular to the conveyance direction of the copy paper, is connected to an intermediate tray. This is an example where it also serves as a

That is, the copy paper coming out of the feed roller 12 similar to the example shown in FIG. 2 passes through the first switching guide 17 and is temporarily sent to the reversing guide 18. When the copy paper is completely fed into the reversing guide 18, the first switching guide 17 is switched to the position shown by the two-dot chain line by the cam 19, and the copy paper in the reversing guide 18 is reversed in its conveying direction. and sent into the guide passage 14,
The paper is discharged to the paper discharge tray 2b via the paper discharge roller 15 by guide rollers 13, 13, . . .

In this apparatus, when the process is only one-sided copying, the copy paper that has been copied by the above process can be obtained by pulling out two paper discharge trays.

In addition, when performing double-sided copying, the above-mentioned paper output tray 2b
The copy paper discharged is further fed by a paper feed roller 20 via a conveyance guide 21 to a feed roller 22, and from there is further conveyed to a registration roller 7. At this time, the conveyed copy paper has the opposite side, which has not yet been subjected to copy processing, facing the photosensitive drum 8, and as it passes through the registration rollers 7 and the transfer section 9,
The image is transferred to this side, and then passed through the conveyor belt 10 and thermally fixed by the fixing roller 11, thereby completing the copying process on both sides.

The copy paper that has undergone the copying process in this way is transferred from the feed roller 12 to the first switching guide I, as described above.
After passing through the reversing guide 18 and having its conveying direction reversed, the sheet is discharged from the paper discharge roller 15 to the paper discharge tray 2 via the guide path 14.

In this way, by pulling out the paper ejection tray 21 toward the front, copy paper on which copy processing has been completed can be easily taken out.

In the modification shown in FIG. 4, a branch passage 23 is further connected to the guide passage 14 in the embodiment shown in FIG. In addition, a paper discharge tray 2 is provided as a storage place for the copy paper sent out from the branch passage 23 by the guide rollers 25, 25, . . . and the paper discharge roller 20.
c is provided above the intermediate tray 28.

In this case, the intermediate tray 28 is for temporarily storing copy paper that has been copied on only one side before double-sided copying is completed, whereas the paper output tray 2c
is used to stock copy paper immediately before it is taken out of the copying machine after single-sided or double-sided copy processing has been completed.

Therefore, in this case, in the mode where only one-sided copying is performed, the second switching guide 24 is connected to the solenoid 2.
9, the copy paper is switched to the position shown by the solid line in FIG. 18, from there the conveyance direction is reversed and the conveyance progresses to the middle of the guide passage 14, where the traveling direction is directed to the direction of the branch passage 23 by the second switching guide 24, and the conveyance direction is turned to the direction of the branch passage 23. The paper is discharged from the paper roller 20 to the paper discharge tray 2°. The discharged copy paper is taken out to the outside by pulling out the paper discharge tray 2c in a direction perpendicular to the conveyance direction of the copy paper.

Further, in the double-sided copy mode, the second switching guide 24 is first switched by the solenoid 29 to the position shown by the two-dot chain line in the figure. Therefore, as described above, the copy paper that has been guided from the feed roller 12 to the first switching guide 17 and entered the reversing guide 18 is switched in its conveying direction, enters the guide path 14, and continues to pass through the guide roller 13. .13... and is discharged from the paper discharge roller 15 to the intermediate tray 28.

The copy paper stored in the intermediate tray 28 is further sent out to the paper feed roller 20, and then passed through the conveyance guide 21, the feeding roller 22. The image reaches the transfer unit 9 via the registration roller rough, and after being transferred to the other side, it is transferred via the conveyor belt 10 and fixed by the fixing roller 11.

In this way, the copy paper on which both sides have been fixed is transferred from the second switching guide 17 to the reversing guide 1 again.
8, where the conveyance direction is reversed. At this point, the solenoid 29 is activated and the second switching guide 24 is switched to the position shown by the solid line in the figure, and the copy paper sent from the reversing guide 18 to the guide path 14 is transferred to the second switching guide 24. The sheet is guided into the guide path 23, from where it is discharged to the sheet discharge tray 2c via the seed discharge roller 20. All the set number of copies of copy paper are in paper output tray 2.
When the paper is sent to e, the double-sided copying process ends.
The operator can pull out the paper discharge tray 2c toward the front and take out the copy paper on which both sides have been copied.

In addition to the above-mentioned embodiment, it is also possible to apply the present invention to a copying machine equipped with a composite copying function, but in this case, the conveyance shown in FIG. All you need to do is add the guide 21 and feed roller 22, or the fourth
Second switching guide 24 and branch passage 2 as shown in the figure
3. By adding the intermediate tray 28 to the paper discharge tray 2C1, it is also possible to separately provide the intermediate tray and the paper discharge tray for copied copy paper.

Effects of the Invention As described above, the present invention has an advantage in that a paper discharge tray for storing copy paper that has been copied is built into the main body of the copying machine, and the paper discharge tray is arranged perpendicularly to the conveyance direction of the copy paper. Since this is a copying machine paper ejecting device that is characterized by being able to be freely pulled out in the direction of
The overall installation area of the copying machine becomes very small.

For example, in popular copying machines that can supply A3-size copy paper, conventionally, a paper output tray roughly equivalent to A3-size paper was provided protruding from the side of the copying machine body. However, this is omitted and is built inside the copying machine, reducing its installation area.

Furthermore, in this invention, the paper output tray built into the copying machine body can be freely pulled out in a direction perpendicular to the direction of conveyance of copy paper, so that it can be pulled out in the same direction as the direction of conveyance of copy paper. In comparison, the installation area can be substantially reduced, and the operability is also excellent.

[Brief explanation of the drawing]

FIG. 1 shows the exterior of the entire copying machine according to an embodiment of the present invention.
A perspective view, FIG. 2 is a front sectional view showing an example in which the present invention is applied to a copying machine equipped with only a single-sided copying function, and FIG. 3 is a front sectional view showing an example in which the present invention is applied to a copying machine having a double-sided copying function equipped with a paper ejecting device according to Ike's embodiment. FIG. 4, a front sectional view of the copying machine, is a view corresponding to FIG. 3 showing a modification of the embodiment shown in FIG. 3. (Explanation of symbols) 1, l&, 1&, tc...Copier main body 2.2m, 2b
, 2c... Paper discharge tray 14... Guide passage 16
...Support rail 17...First switching guide 24...Second switching guide 28...Intermediate tray.

Claims (1)

[Claims] A copying apparatus characterized in that a paper discharge tray for storing copied copy paper is built into the copying machine main body, and the paper discharge tray can be freely pulled out in a direction perpendicular to the conveyance direction of the copy paper. Paper ejection device of the machine.