JPH0447726Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a copying apparatus equipped with a stapling function.

BACKGROUND OF THE INVENTION Copying apparatuses have been proposed that have a function of binding copy sheets using staples. FIG. 8 shows one conventional example.

1 is the copying device, 2 is the finisher (post-processing device), 3 is the photoreceptor, 4 is the paper feed tray,
Reference numeral 5 indicates a discharge tray, and reference numeral 6 indicates a double-sided tray.

In the case of single-sided copying, the copied copy paper is sent to the tray 5 or the finisher 2, and in the case of double-sided copying, the copy paper that has been transferred on one side is temporarily stored in the double-sided tray 6, and then transferred to the 7 and is again sent to the transfer section.

Conventionally, a method was used to automatically staple the copied sheets using a stapler 8 installed in the finisher 2, but in this method, a dedicated stapler stacking tray as shown by numeral 9 was used. However, the drawbacks are that the equipment becomes larger and the cost becomes higher.

Purpose In view of the above points, it is an object of the present invention to provide a copying apparatus which eliminates the need for a dedicated stack tray for stapling, thereby reducing the size and cost of the apparatus.

Configuration In order to achieve the above object, the present invention includes an image forming device including a transfer means, a tray for temporarily storing copy paper whose one side has been transferred by the transfer means, and a copy paper sent out from the tray, It has copy paper guiding means leading to the image forming device, and binding means for binding the copy papers, and the binding means is placed on the tray in order to bind the copied copies stored in the tray on the tray. It is characterized in that it is provided at a position corresponding to the binding portion of the copy paper to be placed.

The present invention will be explained below based on one embodiment.

FIG. 1 shows an embodiment of the present invention.

A document feeding device 12 is provided above the copying device 11, and a document O is placed on a table 13 of this device 12.
is placed with the image side facing upward. First, the final page of the document at the bottom is sent, turned over to the right side of the contact glass 14, and placed on the contact glass 14 with the image surface facing downward.

After copying, place the original on the contact glass 14.
The documents are flipped upwards on the left side of the document tray and stacked on the original document tray with the image side facing upward.

On the other hand, when the document is placed still on the contact glass 14, the document image is projected onto the photoreceptor 15 to become an electrostatic latent image, which is visualized by the developer 16. Then, this developed image is transferred by a transfer charger 10 onto copy paper fed from a paper feed section 17, and this transferred image is fixed by a fixing device 18. Please note that this copying device is a transfer type, so
Hereinafter, copy paper will be referred to as transfer paper.

The transfer paper that has come out of the fixing device 18 is ejected to an ejection tray 19 through, for example, a conveyance path. Further, the images are conveyed upward through another conveyance path b, and then proceeded downward and stacked on the tray 21 with the image surface facing upward. Then, the transfer sheets stacked on the tray 21 are fed again to the transfer charger 10 by a sheet feeding means (not shown), and the developed image of the next original document is transferred to the back surface thereof. This is the case with double-sided copying. Here, the surface to which the image is first transferred is referred to as the first surface, and the surface to which the image is transferred to the reverse side is referred to as the second surface.

When the transfer paper passes through the c transport path after fixing, the first
Place the tray 21 with the image side transferred to the surface facing downward.
The developed image of the next original is transferred onto the same side of the original that is stacked and re-fed. This is the case with synthetic copying.

The tray 21 is a tray used when performing double-sided copying or composite copying, and temporarily stores transfer paper that has been transferred on one side by a transfer means such as the transfer charger 10.

The transfer paper guide means for guiding the temporarily stored transfer paper from the tray 21 to the transfer means constituting one of the well-known image forming devices in the copying machine includes a pair of guide plates forming the reversing conveyance path 22 and a plurality of guide plates. Examples include a pair of conveying rollers. Note that the reversing conveyance path 22 serves as a paper refeeding path during double-sided, composite copying.

If you want to perform stapling for both double-sided copies, composite copies, and single-sided copies,
The copied transfer sheets (copies) are stacked on the tray 21.

The present invention is characterized in that a binding means such as a stapler 23 for binding the copies stored on the tray 21 is provided at a position corresponding to the binding portion of the copies placed on the tray.

That is, if the tray 21 is a double-sided tray, this double-sided tray is used to bind copies. Note that the specific configuration of the stapler 23 will be described later.

(a) First, in the case of single-sided copying that is copied in reverse page order (sequentially from the last page), transport path b (hereinafter referred to as
The transfer paper is reversed and fed downward through a conveyance path (referred to as a pass), stacked on a tray 21 in reverse page order with the image side facing upward, and stapled using a stapler 23. Note that the position and number of staples can be selected as appropriate, and a punch (hole) may also be provided. After the stapling is completed, the copies are transported to the left, and a tray 2 dedicated to storing stapled copies is placed.
Ejected to 0.

(b) in the case of single-sided copies that are copied in page order:
The transfer sheets are guided to the c path, stacked in page order with the image side facing down on the tray 21, and stapled with the stapler 23. The rest is discharged onto the tray 20 in the same way as in (a).

(c) In the case of double-sided copies that are copied in page order:
After copying on the first side, the transfer paper is guided to the b-path and re-fed from the tray 21, and after copying on the second side, it is also guided to the b-pass, stacked on the tray 21, and stapled. The rest is discharged onto the tray 20.

(d) In the case of double-sided copying in which pages are copied in reverse page order, as in the case of (c), after copying the first and second sides, both transfer sheets are guided to the b path and transferred to the tray 21. Stack and staple. The rest is discharged onto the tray 20.

(e) In the case of a composite copy that is copied in page order:
After copying the first and second sides, use the transfer paper for both sides.
It is guided to the path, stacked on the tray 21, and stapled. The rest is discharged onto the tray 20.

(f) In the case of composite copying in which pages are copied in reverse page order, after copying the first side, guide the transfer paper to the c path, after copying the second side, guide it to the b path, stack it on the tray 21, Staple. The rest is discharged onto the tray 20.

As mentioned above, the temporary storage tray 21
Since the tray is also used as a stapling tray, stapling can be performed in the five modes described above without adding an extra tray.

In the example of FIG. 1, it is necessary to refeed paper from the tray 21 and eject the stapled copies using two feeding means, but the stapled copy ejection tray 20 is placed on the right side as shown in FIG. By bringing the tray 21, the number of feeding means on the tray 21 can be reduced to one. In this case, a bimodal branch unit 24 is added instead.

In the example shown in FIG. 3, the two discharge trays 19 and 20 of the example shown in FIG. 1 are shared. Regardless of whether or not stapling is performed, copies are ejected to the same ejection tray 19', improving operability for the operator and reducing equipment costs.

The example shown in FIG. 4 is an example in which a discharge tray, a double-sided tray, and a staple tray are all used. This is tray 26. For composite copying, the reversal path e is used. After stapling, a tray 27 for storing copies is provided below the paper feed tray 17. Such dual use can reduce the cost of the device.

In the example shown in FIG. 5, the discharge trays of the example shown in FIG. 4 are concentrated only on the left side to improve operability. The number of paper feed sections 17 can be increased compared to the example shown in FIG.

FIG. 6 shows the stacked state of copies S on the tray 21. The front and side ends of the transported copies S are brought into contact with stoppers 29 and 30, respectively, by the diagonal feed roller 28, and are set at a reference position and stacked. In this state, the copies are stapled by the electric stapler 23.

An example of a stapler is shown in FIG. 7A.
When the cam 31 driven by the motor rotates, the punch 32 is pushed down;
2, the staple needle 33 is pushed down.
Then, the staple needle 33 penetrates the copy S,
The tip of the penetrating needle is bent by the die 34, and the copy S is stapled by the staple needle 33 as shown in FIG.

Effects As described above, since the present invention is configured so that the temporary storage tray used for double-sided copying can also be used as a staple tray, it is possible to eliminate the need for a dedicated stack tray for stapling. , the device can be made smaller and lower in cost.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of the present invention, FIGS. 2 to 5 are schematic diagrams of another embodiment, FIG. 6 is a perspective view showing the copy in the stapling position, and FIG. 7 A and B are copy staple action diagrams, No. 8
The figure is a schematic diagram of a conventional example. 10...Transfer charger, 21...Tray,
23...Stapler.

Claims (1)

[Scope of utility model registration request] An image forming device including a transfer means, a tray for temporarily storing copy paper whose one side has been transferred by the transfer means, and a copy paper fed out from the tray,
It has copy paper guiding means leading to the image forming device, and binding means for binding the copy papers, and the binding means is placed on the tray in order to bind the copied copies stored in the tray on the tray. A copying device characterized in that it is provided at a position corresponding to a binding portion of copy paper to be placed.