JPH0460908B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides an RDH
(Recirculating Document Handler...Automatic document processing device...hereinafter referred to as automatic document processing device)
The present invention relates to a device configured by combining the above, and particularly relates to a copying machine configured to easily process documents exceeding the limit number of copies in an automatic document processing device.

(Conventional Techniques) In conventionally used copying machines, for example, as described in Japanese Unexamined Patent Publication No. 56-36662, a copying machine capable of double-sided copying is used, and the copying machine is It is used in combination with an automatic circulating document processing device.

In the conventional example described above, a predetermined number of originals are placed on the original tray of the automatic document processing device with the copy side facing upward, and the originals are taken out one by one from below and placed on the platen. send it up,
To read an image while circulating the original, return the copied original on top of the original that has not yet been circulated, and stack the originals without disrupting the order of the originals.

When making multiple copies, the originals that have already been copied and piled up on the original tray are sent out again one by one for copying, and this operation is repeated many times to make a predetermined number of copies. I'm trying to make a copy.

In addition, the automatic duplex copying machine used for this purpose copies the first copy on the front side of the paper and the second copy on the back side, and repeats this operation to accurately copy the page of the copy. It is.

However, in such conventional copying machines, there is a limit to the number of originals that can be placed on the original tray of the automatic document processing device. For example, if the operator sets more originals than the limit,
An instruction to remove excess documents is generated. Therefore, if you make a mistake in the order of the originals when removing the extra originals, misalignment may occur in the subsequent copies of the originals. For example, if the originals are out of order, the pages of the copies will be completely The reason for using an automatic duplex copying machine would be lost.

Additionally, the capacity of a dedicated paper cassette for double-sided copying on a copier is usually around 50 sheets, and the number of documents that can be placed on the document tray mentioned above is also limited to the same amount. Since the number of originals that can be placed on the original tray is larger than that, the operator tends to set more originals than the limit.

However, it is not known that the number of originals set exceeds the limit until the copying operation has completed one cycle, and this, combined with operator error, causes the above-mentioned drawbacks of copying. may occur.

(Problems to be Solved by the Invention) The present invention attempts to solve the above-mentioned drawbacks of the conventional copying machine. The document is returned to the top of the document, so that it is possible to easily remove the excess document that is returned in a separated state on top of the document.

(Means and effects for solving the problem) The automatic document processing device of the present invention includes a set separator provided above the document tray, and the set separator is rotated over the document after the document is set. , I try to press it. Then, when the copied originals are returned to the original tray, they are stacked on the set separator in an orderly manner.

Further, a sensor is provided near the document support portion of the document tray, and this sensor is connected to a counter for the number of copies, so that the number of documents can be accurately determined.

If the original remains on the support unit after a predetermined number of copies have been made, for example 50 copies, a warning will be issued and at the same time, the remaining original will be copied. Place it back on top of the finished original.

Therefore, the operator only needs to remove the designated original, and the removal does not disrupt the order of the original and prevents abnormal situations such as pages being copied out of order. It is now possible to reliably prevent this from happening.

(Embodiment) The configuration of the copying machine of the present invention will be explained according to the illustrated embodiment. As shown in FIG. It is constructed by combining the above.

In the automatic document processing device 2, a document feeder 4 is provided at the forward end of the document tray 3 on the sending side, and a document conveying path 6 follows the document feeder 4.
is formed. The document conveyance path 6 is composed of a plurality of nip-feed type conveyance rollers 7 and a guide member, and is designed to rotate the document between the platen 11 and the document tray 3.

The copying machine main body 10 has a configuration similar to that of the conventional example described above, and an optical scanning member 12 that reciprocates on the lower surface of the platen 11 irradiates the original image, or a flash An image is irradiated by a lamp, and the image information is transmitted to the photosensitive drum 13.

The copying machine main body 10 has two paper feed cassettes 1.
5 and 15a are formed, and paper is fed according to the copy mode. For example, when the paper feed cassette 15a is used as a paper feed cassette exclusively for double-sided copying, the paper is fed from the paper feed cassette 15a. The paper is sent out one by one by the paper roller, and the paper is transported along the paper transport path 16 formed by the transport roller 17 and the guide member.
4 transfers the image, and heat roller 18
After fixing the toner image, the paper passes through a reversing circuit and is reversely inverted, passes through the paper conveyance path 16 again, and transfers the image to the back side of the paper, and then the paper is transferred to the ejection roller 1.
9 and then output to the output tray.

The automatic document processing device 2 has the above-described configuration, and is placed on the document tray 3 with its copy side facing up, the first page facing up, and the last page facing down. The document is placed on the document feeder 4 one by one, conveyed to the platen 11 by the document conveyance belt 5 for positioning, and the image is read. 6
, and return the circulated original onto the original tray 3.

In the above-mentioned automatic document processing device 2, the branching claw is used to invert the copy side when the copied document has images formed on both sides.The operation thereof is described in the present invention. is omitted.

Regarding the handling of a document placed on the document tray 3 in the automatic document processing device 2 of the present invention,
To explain in more detail based on FIGS. 2 to 7, as shown in FIG. 2, the original 20 is placed on the original tray 3 in a face-up and bottom-feed state as described above.

Then, when the document 20 is set, the set separator 21 is rotated via the shaft 22.
It is set by pressing the top of the original 20. In this state, the originals 20 are sent out one by one to make copies, and as shown in FIG.
0b is deposited on the uncirculated original 20a with the set separator 21 sandwiched therebetween.

When the number of originals 20 set on the original tray 3 is less than the limit number, as shown in FIG. operation, or
As shown in FIG. 5, the document 2 placed on the document tray 3 is removed.
If the number of 0's is greater than the limited number of sheets, the extra document 20c will remain under the set separator 21.

Then, the extra document 20c is transferred to the sensor 20c.
When detected, the information is input to the control device of the copying machine, and a signal for removing the document is generated on the display section of the main body of the copying machine.

Further, when the signal is generated, the extra original 20c is returned to the original tray 3 at high speed, and as shown in FIG. 6, it is deposited on the copied original 20b, and its removal is instructed.

The operator then removes the extra document 2 according to the instructions.
0c is removed, but the pages of the original 20c stacked on top of the already circulated original 20b are in the same order, so that the copy will be made correctly the next time it is set as it is. It's getting old.

Therefore, after removing excess documents, the number of documents 20 set on the document tray 3 of the automatic document processing device 2 is within the limit number, as shown in FIG. Therefore, the document 20 is copied repeatedly to create a predetermined number of copies.

(Effects of the Invention) Since the document tray of the present invention has the above-described configuration, the number of documents can be limited according to the number of sheets that can be accommodated in the paper feed cassette dedicated to double-sided copying of an automatic double-sided copying machine. This makes it possible to easily remove excess originals when printing, and also ensures that inconveniences such as the pages of the original are not disturbed when removing the excess originals. .

Therefore, in the automatic document processing apparatus of the present invention, even if the operator mistakenly sets more documents than the limit, the excess documents can be easily removed and the removed documents can be used next time. When copying, the page will not be disturbed, and this will not cause copy errors.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the configuration of a copying machine according to the present invention, and FIGS. 2 to 7 are explanatory diagrams showing the operation of feeding a document. Symbols in the figure 1... Copying machine, 2... Automatic document processing device, 3... Document tray, 4... Document feeder, 5... Document conveyance belt, 6... Document conveyance path, 7... Conveyance roller, 8... Branch claw, 10 ... Copying machine main body, 11 ... Platen, 12 ... Optical scanning member, 13 ... Photosensitive drum, 14 ... Transfer separation corotron, 15 ... Paper feed cassette, 16 ... Paper transport path, 17 ... Transport roller, 1
8...Heat roller, 19...Ejection roller, 20...Document, 21...Set separator, 22...Shaft, 23...
Original support section, 24...sensor.

Claims (1)

[Claims] 1. In a copying machine configured in combination with an automatic recirculating document processing device, the document feed is performed according to the limit on the number of sheets in the document tray of the copying machine, and documents exceeding the limit are placed in the An automatic document processing device for a copying machine, characterized in that the automatic document processing device for a copying machine is configured to return and stack original documents in a state in which no copying is performed, and to issue a command to remove the excess documents.