JPH0622696Y2 - Automatic recirculation document processor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is configured in an automatic recirculation document processing apparatus such that a document whose image reading operation has been completed is deposited on the lower surface of the deposited document. In particular, the present invention relates to an apparatus configured so that a copied document can be easily inserted into a deposited document.

(Prior Art) Conventionally, an automatic document feeder is combined with an automatic double-sided copying machine, and a double-sided document is circulated by the automatic document feeder to create a double-sided copy. For example, JP-A-5
In an automatic document feeder as disclosed in Japanese Patent Laid-Open No. 6-36662, a double-sided document set on a document tray of the automatic document feeder is circulated, and an image on one side of the document is copied at the first circulation. The copy made as the one-sided copied sheet is temporarily stored in the intermediate tray, and then the image on the back side of the document is scanned to make a copy on the back side of the one-sided copied sheet to obtain a double-sided copy.

The automatic double-sided copying machine as described above is provided with the automatic document feeder having the structure shown in FIG. 4, and the original 1 set on the document tray 5 of the automatic document feeder 3 is The lower one is sequentially taken out by the belt feeder 6, and is fed out through the paper separating mechanism.
Then, the sheet is conveyed in the curved original conveying path by the conveying rollers of the above and is supplied to the conveying belt mechanism 26. Then, the belt 26 is conveyed on the platen 25, stopped at a predetermined position of the platen 25, and the image is read by an image reading device provided on the lower surface of the platen.

When the reading of the image is completed, the document is returned to the document tray 5 via the discharge roller 23 of the document returning unit 20, and at this time, the document whose image has been read is sequentially placed on the upper surface of the deposited document. Deposit and get ready for the next copy task.

The original that has been scanned once reads the image on the back side of the original in the next copying operation, so it is necessary to provide a reversing mechanism in the original conveying path in addition to the example of FIG. By these actions, when reading the image on the back side, the back side of the document is set at a position corresponding to the platen, the image on the back side of the document is scanned, and the one-sided copied paper stored in the main body of the copying machine is scanned. The image on the back side of the original is transferred to the back side, and the copy is completed as a double-sided copy.

(Problems to be Solved by the Invention) However, in the conventional device as described above,
There is a limit to the number of documents that can be set in the document tray of the automatic document feeder. For example, when the operator places more than the limit number of documents on the document tray, it is necessary to remove excess documents.

Then, when a document is piled up in a wrong order when a document is removed by a command from the automatic document feeder, a misalignment may occur in the pages of the subsequent copy. There is a problem such as an obstacle.

Further, in the conventional automatic document feeder as described above, in order to detect the number of documents set in the document tray, all the documents are circulated before scanning the image. Is performed, and then the operation such as setting the number of double-sided copies is started. These operations also cause a decrease in the productivity of copying work.

Further, although the above-mentioned system is called N-1 system or the like, it is necessary to set the first page of the document face down in the N-1 system automatic document feeder as described above. However, there is a problem in that the operator cannot directly know the state in which the copying is being performed during the copying operation.

On the other hand, in order to solve the drawbacks of the above-described apparatus, it is desirable to use a method in which the original is set face up and is taken out from the upper portion of the accumulated original by the paper feeding device.

This method is called 1-N method.
In the N-type apparatus, the method for bottom restacking has not been solved to form a compact recirculation original automatic processing apparatus, and it is desired to develop an apparatus that can satisfy this. Is the current situation.

(Object of the Invention) The present invention solves the above-mentioned drawbacks of the conventionally used apparatus, and affects the operation of the bottom restack in the 1-N type apparatus with respect to the accumulated document. It is an object of the present invention to provide an automatic recirculation document processing apparatus that can be satisfactorily performed without giving the above.

(Means and Actions for Solving Problems) The recirculating document automatic processing apparatus of the present invention sequentially feeds the documents stacked on the document tray from the upper surface and scans the documents scanned. In a device configured to be inserted in the lower part of the stacked originals and adapted for the next copying work on the back side, a restack transport for transporting the copied originals is provided on the lower surface of the original tray. , The restack transport is composed of a document to be nipped and conveyed, and a guide for lifting the accumulated document, and the document which has completed the copying operation is deposited on the restack transport via the restack transport. The device is configured to be inserted in the lower part of the.

Therefore, in the automatic recirculation document processing apparatus of the present invention, when a document whose copying operation has been completed is inserted below the accumulated document, the accumulated document is not affected and the accumulated document is not affected. The state can be maintained in good condition, and it can be sent out according to the copying work on the back side.

Further, the automatic recirculation original processing apparatus of the present invention can be easily applied to a 1-N type apparatus, which can prevent the page of a copy from being disturbed, and can be applied to a copying operation. It is possible to obtain an apparatus capable of efficiently performing copying work without requiring preliminary circulation or the like.

(Example) The structure of the device of the present invention will be described according to the illustrated example.

As shown in FIG. 1, the recirculation original automatic processing apparatus 10 of the present invention is provided on the platen 25 of the main body of the copying machine.
This is an apparatus that conveys an original to the platen 25 by a conveyor belt 26, positions the original, and reads image information.

In the automatic recirculation document processing apparatus 10 of the present invention, the document tray 5 is provided above the conveying belt 26, and the paper feed roller 11 and the paper separating mechanism 12 are provided on one side of the document tray 5. A curved document conveying path 15 is arranged, and a mechanism such as a document returning section 20, a switching claw 21, a returning path 22 and a discharging roller 23 is arranged on the other side.

Among these devices, an oblique roller 14, a registration roller 16, a gate 17 and the like are arranged for the curved original conveying path 15, and an original taken out by the paper feed roller 11 from the original tray 5 is obliquely attached. The position is corrected by the roller device, and the gate 17 temporarily stops.

After that, the gate and the registration roller are operated in accordance with the state of the document being conveyed on the platen 25 and the operation of the image reading apparatus of the copying machine body, and the operation of opening and closing the document conveyance path by the gate and the registration roller are performed. The document can be fed by the nip and the feeding of the document.

Further, the lower surface of the original 1 accommodating portion of the present invention is constituted by a restack transport 30, and a concrete configuration of the restack transport 30 is shown in FIGS. 2 and 3. As shown, the conveyor belt 35 and the magnetic body 4 provided on the conveyor belt 35.
1 and a sandwiching device 40 including a magnet device.

The conveyor belt 35 is supported by a pair of pulleys 31 and 31a on both sides and is arranged so as to be circulated and driven under the document 1 as in the case of a normal belt device. With a predetermined interval on the upper surface,
A guide 36 and a magnetic body 41 are provided.

The guides 36 provided on these conveyor belts 35 are made of a relatively hard member, and perform an operation of lifting the document when passing through the lower surface of the document that has been piled up, and hold the document by a holding device 40. The deposited original can be moved and inserted into the lower surface of the deposited original, and the original 1a inserted into the lower surface of the deposited original 1 can be easily moved. Is.

In the lower part of the conveying path of the conveyor belt 35 in the restack transport of the present invention, the attraction magnet 43 is arranged at the nipping start portion, the repulsion magnet 44 is arranged at the nipping release portion, and the permanent magnet is formed in the middle portion. 42 is provided.

The attraction magnet and the repulsion magnet described above are composed of electromagnets, and when the original reaches a predetermined position, the detection signal of the original magnet energizes the document.
The magnetic body can be swung toward and away from the belt, and the holding device can hold and release the document.

Then, in the pinching device 40 configured as described above, when the copied original is inserted below the accumulated original, the original detected by the discharge roller 23 of the return unit 20 is detected by the sensor. Then, the attraction magnet 43 operates to attract the magnetic body 41 while holding the leading end of the document.

As a means for holding and conveying the original by the magnet as described above, for example, an example as shown in Japanese Utility Model Laid-Open No. 59-71356 is known, but in the apparatus of the present invention, It is also possible to use a device as shown in the conventional example, and in addition, by changing the arrangement of the magnets as shown in the examples to control the sandwiching action by the magnetic body, any control means can be provided. It can be used.

After that, when one of the pulleys is driven to drive the conveyance belt 35 holding the original document in the right direction in the figure, the magnetic body 41 moves while holding the leading end portion of the original document, and along with the movement, moves to the upper part. The accumulated document is lifted by the guide 36 to sequentially form a space for slipping of the document to be inserted.

Then, in the document conveyed to the end portion of the document tray by the above-described operation, the magnetic body 41 has the repulsion magnet 44.
It is swung by and is stopped by releasing the document, and is accommodated below the document. Further, the conveyance belt 35, which has completed the operation of conveying the original, is driven by the pulley until the next holding device 40, the state where it can stand by at the original receiving position, the magnetic body 41 of the holding device 40. Holds the next original at a position corresponding to the attraction magnet 43.

As described above, the original conveyed by the conveying belt is easily inserted into the lower surface of the accumulated original without being subjected to the resistance of the upper original, and its positioning operation is performed. Wait for the document sending operation.

The sandwiching device 4 provided on the above-described transport belt 35
As shown in FIG. 1, by arranging two of them at the same interval, 0 makes it possible to shorten the operation distance of the conveyor belt when inserting a document. It is also possible to provide any number of clamping devices.

In addition, a magnetic body and a permanent magnet that form the holding device of the present invention,
The attraction magnet and the repulsion magnet are not limited to those shown in the above-mentioned embodiment, and if they can reliably perform the operation of clamping and releasing the document, and the clamping in the conveyance section, The configuration may be arbitrary, for example,
Using any means such as providing repulsion magnets or the like at the nipping start position and the release position for the rubber magnet and the magnetic body provided on the conveyor belt, or by using other means. Can be done.

Returning the inserted original 1a to the lower portion of the deposited original 1 by the operation of the apparatus of the present invention as described above is repeated during the feeding of the original by the automatic original feeding device. When it is required to reverse the original in the returning operation of the original, the returning path 22 provided in the original returning unit 20 is used to operate the original of the original to reverse the original after the copying. Take action.

(Advantages of the Invention) Since the automatic recirculation original processing apparatus of the present invention has the above-mentioned configuration, it is possible to make the 1-N type automatic recirculation original processing apparatus compact.
It is possible to prevent the accumulated originals from being disturbed, and it is possible to obtain a double-sided copy in a good state.

In addition, the automatic recirculation document processor of the present invention can easily insert a document to be inserted into the lower surface of the document stack without exerting an unreasonable force when performing the stacking operation of the document. It is possible to cope with the next copying operation.

[Brief description of drawings]

FIG. 1 is a side view showing the structure of an automatic recirculation document processing apparatus of the present invention, and FIGS. 2 and 3 are explanatory views showing the operation of bottom restacking of an original by the insertion apparatus of the present invention, respectively. FIG. 4 is a side view of a conventional automatic document feeder. Reference numeral 1 in the figure: 1 manuscript, 5 ... manuscript tray, 10 ... recirculating manuscript automatic processing device, 11 ... paper feed roller, 12 ... paper separating mechanism, 13 ... sending section, 14 ... diagonal roller apparatus,
15 ... Curved document conveying path, 16 ... Registration roller, 17 ...
... Gate, 20 ... Document return section, 21 ... Switching claw, 2
5 ... Platen, 26 ... Conveyor belt, 30 ... Restack transport, 35 ... Conveyor belt, 36 ... Guide, 40 ... Clamping device, 41 ... Magnetic body, 42 ... Permanent magnet, 43 ... ... Suction magnet, 44 ... Repulsion magnet.

Claims (1)

[Scope of utility model registration request] 1. The originals stacked on the original tray are sequentially fed out from the top, and the originals for which copying has been completed are inserted into the lower portion of the originals stacked on the original tray. In an apparatus configured to correspond to image reading on the back side, a restack transport for returning a copy-finished document is provided on the lower surface of the document tray, and the device is used for sandwiching conveyance of the document and stacking. And a guide for lifting the original document, and the original document whose image has been read is inserted under the accumulated original document through the restack transport. Circulating manuscript automatic processing device.