JPH07239595A - Image holding body postprocessing device - Google Patents

Abstract

PURPOSE:To provide a compact and inexpensive image holding body postprocessing device capable of saving space in an office by integrally assembling an image erasing device. CONSTITUTION:This image holding body postprocessing device at least equipped with a sorter part 1 is provided with an image erasing device 49 capable of erasing an image from paper 3 where the image has been already printed under the sorter part 1, a printed paper supply means 52 for supplying the paper 3 to the erasing device 49 from the outside of a main body above the sorter part 1, and a means 61 for controlling paper ejection classified by the size of recycled paper ejected on the sorter pin 4 of the sorter part 1 classified by paper size by detecting the paper size of the recycled paper 33 where the image has been erased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image carrier post-processing apparatus equipped with an image erasing device connected to an image forming apparatus such as a copying machine, a printer or a facsimile.

[0002]

2. Description of the Related Art FIG. 2 shows an example of a conventional image carrier post-processing apparatus (finisher). The device 50 is
It is divided into a sorter unit 1 and a stable unit 2. The sorter unit 1 includes a sorter bin 4 having a plurality of stages in which printed sheets 3 are sorted and stored, a copy tray (proof tray) 5 on which the printed sheets 3 are sequentially stacked, and a fixing unit (described later) of the image forming apparatus. ) To sorter bin 4 printed paper 3
A first paper discharge path 6 for guiding the printed sheet 3 and a second paper discharge path 7 for guiding the printed sheet 3 from the fixing section to the copy tray 5.
A third paper discharge passage 8 for guiding the printed paper 3 from the fixing portion to the stable portion 2, a first paper discharge passage 6 and a sorter bin 4
A paper feeding / discharging unit 9 provided between the document feeding unit 9 and a document feeding device (not shown) and a document reversing unit 10 for reversing the document fed from the sorter bin 4, and the document reversing unit 10 and the paper feeding / discharging unit. It is mainly composed of a document transport path 11 provided between the paper unit 9 and the paper unit 9. Further, the stable portion 2 is connected to the third paper discharge passage 8 and the paper discharge passage 12 through which the printed paper 3 is fed.
The stable tray 13 from which the printed paper 3 is discharged from the paper discharge passage 12, the stable unit 14 that binds the discharged printed paper 3 and the stable tray 1
It is mainly composed of a guide plate 15 attached to one end of the sheet 3, and a sheet discharge stacker 16 for stocking the stable printed sheets 3 sent from the guide plate 15.

The portion A of the image carrier post-processing device 50 as described above, where the first sheet discharge path 6 and the second sheet discharge path 7 meet, is normally as shown in FIG. The image forming apparatus 49 is connected to a section B located downstream of the fixing unit 17. As a result, the printing paper 19 fed from the paper feed tray 18a of the paper feed unit 18 of the image forming apparatus is transferred to the photoconductor 20.
After being transferred by the transfer unit 21 located below the sheet, the fixing unit 17 performs fixing and the printed sheet 3 is discharged as the sheet discharge path 2
The sheet is ejected from the sheet ejection roller 22a of the B section in 2 and is sent to the A section of the image carrier post-processing device 50. Then, the discharged printed sheets 3 are sent to the copy tray 5 in the case of stack processing, sorted into the sorter bins 4 of each stage in the case of sorting processing, and stable tray in the case of stapling processing. Will be sent to 13. Further, a double-sided branch claw 23 is provided at the position of the sheet discharge path 22 of the image forming apparatus 49, and the single-sided copied printed sheet 3 branched downward by the double-sided branch claw 23 is the double-sided tray 2.
It is stored on the 4th. Then, the printed sheet 3 extruded by the double-sided extrusion roller 24a is sent again to the position of the photoconductor 20 through the reversing path 25, and the transfer and fixing processes are performed in the same manner, whereby double-sided copying is performed. The printed paper 3 is sent from the B section to the A section of the image carrier post-processing device 50. A scanner unit 26 is provided above the main body of the image forming apparatus 49, and an image read by the scanner unit 26 is written by the optical writing unit 27 on the photoconductor 20 (visualization of a latent image).

On the other hand, in recent years, there has been an increasing demand for an image erasing apparatus that erases and reproduces printed paper (the printed paper 3) inside the office without taking confidential documents and the like out of the office. An example of the image erasing device 51 will be described with reference to FIG. The main body 28 of the apparatus has a paper feed tray 29 in which a part of the main body is protruded to store the printed paper 3, a paper feed unit 30 for feeding the printed paper 3 stored in the paper feed tray 29, and A wetting unit 31 as a wetting means for wetting the toner surface of the fed printed paper 3 and a toner removing means for heating the wet printed paper 3 to remove the toner adhering to the surface of the paper. It is divided into a toner peeling unit 32 and a drying unit 34 as a drying unit that dries the wet printed paper 3 after the toner is peeled off to make erased recycled paper 33.

In this case, the paper feed unit 30 is provided with a paper feed roller 35 for feeding the printed paper 3 on the paper feed tray 29, a feed path 36, a feed roller 37 and the like. In the wetting unit 31, a treatment liquid 38, a coating roller 39, a conveying roller 40, etc. are provided.
In the toner peeling unit 32, a pair of toner peeling rollers 42 having a heater 41 built therein, a branching claw 43 that contacts the toner peeling rollers 42, a cleaning roller 44, and the like are provided. The heater 4 is installed in the drying unit 34.
5, a drying roller 46 having a built-in unit 5, a pressure roller 47 in contact with the drying roller 46, and the like are provided. A discharge tray 48 for storing the erased recycled paper 33 formed by drying the printed paper 3 is provided outside the main body on the downstream side of the drying unit 34. As a result, the printed paper 3 is first moistened in the moistening unit 31,
Next, the toner on the surface of the paper is erased in the toner peeling unit 32, and the printed paper 3, which is in a wet state due to the toner being erased, is dried in the drying unit 34 and placed on the paper discharge tray 48. Is ejected as erased recycled paper 33. The image erasing process can be performed by such a series of operations.

[0006]

In recent years, in an office, in addition to an image forming apparatus (see FIG. 3) equipped with the above-described image carrier post-processing apparatus (see FIG. 2), a facsimile, a personal computer, a laser are also available. At present, many OA devices such as printers are installed in a small space. On the other hand, from the aspect of resource utilization through confidentiality protection and recycling,
In the image erasing apparatus (see FIG. 4) as described above, a confidential document or general printed paper (printed paper 3) is erased and reproduced inside the office to obtain recycled paper (erased recycled paper 33). Demands are increasing, and they are becoming essential items in offices in the future. Erased recycled paper 33 whose image has been erased by such an image erasing device
Is input again to the image forming apparatus as printing paper (printing paper 19) and is used. In this case, the image erasing apparatus and the image forming apparatus including the image carrier post-processing apparatus are In terms of work efficiency, it is desirable to place them as close as possible.

However, there is a limit to the arrangement of these two devices close to each other. Further, if such an image erasing device is to be provided in an office, it must be installed side by side with another OA device such as a copying machine or a printer, and a space for installing the image erasing device is newly required. Become. As described above, at this stage, since the image erasing device and the image forming device having the image carrier post-processing device and the like must be installed independently, there is a problem that the space in the office becomes small, Moreover, it is not economical to install them separately.

Further, as shown in FIG. 2, the image carrier post-processing device provided in the image forming apparatus or the like has various trays (sorter bin 4, copy tray 5, stable tray 1).
3) protrudes in the horizontal direction from the vertically long main body portion, so that a wasteful space S is formed between the stable tray 13 and the paper discharge stocker 16. The image erasing device may be arranged in such a space S. However, if the image erasing device is arranged in such a low place, the operator has to bend one by one every time the erasing / reproducing work is performed, and the workability is poor.

[0009]

According to a first aspect of the present invention, there is provided at least a sorter section for sorting printed sheets on which images are formed by performing various processes such as transfer and fixing by the image forming apparatus. In an image carrier post-processing apparatus, a wetting means for wetting the toner on the surface of the printed paper and a toner removing means for heating the surface of the paper after the wetting to remove the toner adhering to the surface to obtain erased recycled paper. An image erasing device provided with a drying means for drying the wet erased recycled paper after peeling off is provided below the sorter section, and a printed sheet for supplying the printed sheet to the image erasing device from the outside of the main body. A paper supply unit is provided above the sorter unit to detect the paper size of the erased recycled paper output from the image erasing device and detect the erased re-paper for each paper size. The paper provided a reproduction paper size by the paper discharge control means for discharging onto sorter bins of the sorter unit.

According to a second aspect of the present invention, in the first aspect of the present invention, the sheet size or state of the sheet of the erased recycled sheet that has been reproduced or the state of the sheet is detected at the discharge port of the image erasing device. A detection unit is provided, and when the detected erased recycled paper has a non-regulated size or the paper is in a defective state due to wrinkles or the like, the erased recycled paper is sent to the image forming apparatus side. Instead, a recycled paper conveyance control means for discharging the paper outside the main body is provided.

According to a third aspect of the present invention, in the first aspect of the present invention, the paper size of the printed paper printed on the supply port of the printed paper supply means or the size of the printed paper for detecting the paper state is detected. State detection means is provided, and if the detected paper size of the printed paper is out of the specified size or the paper condition is defective due to wrinkles, etc., the printed paper is not sent to the image erasing device side. In addition, a printed paper conveyance control means for discharging the paper to the outside of the main body is provided.

According to a fourth aspect of the invention, in the first aspect of the invention, there is provided recycled paper storage means for storing the erased recycled paper discharged from the image erasing device.

According to a fifth aspect of the invention, in the first aspect of the invention, a printed sheet feeding means for feeding the printed sheet from the outside of the main body is attached so as to be openable and closable, and the image erasing device is in a standby state when opening. So that

According to a sixth aspect of the present invention, in the first aspect of the present invention, recycled sheet refeed control means for refeeding the erased recycled sheet discharged on the sorter bin for each sheet size to the image forming apparatus side. Was set up.

[0015]

According to the first aspect of the present invention, the erased regenerated paper sent to the image erasing device and subjected to the image erasing reproduction is sent to the image forming device to be subjected to the image printing process or the regenerated paper. By the size-based sheet discharge control means, the sheets are sorted according to the sheet size and stored in the sorter bin of the sorter unit. Further, the printed paper supplied from the printed paper supply means is sent to the image erasing device and erased and reproduced as an image to become erased recycled paper. Therefore, by incorporating and integrating the image erasing device in the empty space below the sorter section of the image carrier post-processing device provided in the image forming apparatus in this way, the image carrier post-processing device can be installed in the office. It is not necessary to separately install the image forming apparatus and the image erasing apparatus provided, and it is possible to reduce the space in the office. Also, by arranging the printed paper supply means above the sorter,
The printed paper can be easily supplied without the operator having to bother. Further, the erased recycled paper erased and reproduced by the image erasing apparatus is discharged onto the sorter bin according to the paper size, so that the operator's sorting work becomes unnecessary.

According to the second aspect of the present invention, the erased recycled paper discharged from the discharge port of the image erasing device detected by the recycled paper size / state detecting means is out of the specified size, or wrinkles or toner. When it is determined that there is a defective state due to remaining or the like, the recycled paper transport control unit discharges the erased recycled paper to the outside of the main body without sending it to the side of the image forming apparatus, so that a jam in the image forming apparatus is eliminated. It becomes possible to prevent the occurrence.

According to the third aspect of the invention, the printed paper supplied from the supply port of the printed paper supply means detected by the printed paper size / state detecting means is out of the specified size, or wrinkles or toner. When it is determined that there is a defective state due to remaining or the like, the printed sheet conveyance control unit discharges the printed sheet to the outside of the main body without sending it to the image erasing apparatus side, and thus, a jam in the image forming apparatus is eliminated. It becomes possible to prevent the occurrence.

According to the fourth aspect of the present invention, the erased recycled paper discharged from the image erasing device is stored in the recycled paper storage means, and the stored erased recycled paper is image-formed as necessary. It can be supplied to the device side, and operability can be improved.

According to the fifth aspect of the invention, since the printed paper supply means can be opened and closed freely, it is in a closed state when the operator is not using it, and the image erasing device does not operate. It is possible to prevent things such as supply. Moreover,
Since the image erasing device is in the standby state at the same time as the opening, the operator can immediately perform the image erasing processing operation.

According to a sixth aspect of the present invention, erased recycled paper stored in a sorter bin for each paper size is
By re-feeding to the image forming apparatus side by the recycled paper re-feeding control means, re-feeding can be controlled by a simple mechanism, and erased recycled paper from which an image has been erased is fed to the paper feed tray of the image forming apparatus. It is possible to quickly replenish the paper without having to refeed the paper.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention described in claims 1, 4, 5, and 6 will be described with reference to FIG. The conventional example (FIGS. 2 and 3)
The description of the same parts as those of the reference) will be omitted, and the same reference numerals will be used for the same parts.

In the present embodiment, as shown in FIG. 1, a sorter unit for sorting the printed sheets 3 on which the images are formed by processing such as transfer and fixing by the image forming apparatus 49 (see FIG. 3). In the image carrier post-processing device 50 provided with No. 1, the following structural requirements are set. That is, first, a wetting unit 31 for wetting the toner on the surface of the printed paper 3 and a toner peeling unit 32 for heating the surface of the paper after the wetting to peel off the toner adhering to the surface to form erased recycled paper 33. An image erasing device 51 (see FIG. 4) provided with a drying unit 34 for drying the wet erased recycled paper 33 after the peeling is provided below the sorter unit 1. Further, a printed paper supply unit 52 as a printed paper supply means for supplying the printed paper 3 to the image erasing device 51 from outside the main body is provided above the sorter unit 1. This printed paper supply unit 5
Reference numeral 2 mainly comprises a paper feed tray 53 with print and a paper feed roller 54. Printed paper feed tray 53
Is attached so as to be openable and closable, and the image erasing device 51 is set to be in a standby state when it is opened.

A printed paper discharge passage 55 for guiding the printed paper 3 discharged from the image forming device 49 to the image erasing device 49, and an erased recycled paper from which an image has been erased by the image erasing device 49. A recycled paper supply passage 56 is formed to re-supply 33 into the reversing path 25 of the image forming apparatus 49. This recycled paper supply passage 5
Reference numeral 6 is connected to a recycled paper supply passage 56a in the image forming apparatus 49, and this recycled paper supply passage 56a is connected to the reversing path 25. In addition, the sheet discharge path 2 of the image forming apparatus 49
In the sheet discharge path 57 of the image carrier post-processing device 50 connected to the B section 2 of FIG. 2, a sheet deflecting device 58 for switching the traveling direction of the sheet to three directions of the conveying paths a, b and c is arranged. ing. The internal path of the paper deflecting device 58 has a shape in which the opening on the inlet side is wide and the opening on the outlet side is narrow. Further, the sheet deflection device 58 is
When the printed sheet 3 discharged from the image forming apparatus 49 is conveyed to the proof tray 5, the conveying path a is used, and the printed sheet 3 discharged from the image forming apparatus 49 is conveyed to the sorter bin 4. When the erased recycled paper 33 is conveyed to the proof tray 5, the conveyance path b is used to convey the printed sheet discharge path 55 and the conveyance path 5.
9 is connected, and when the erased recycled paper 33 is conveyed to the sorter bin 4, a conveyance path c is used to connect the printed paper discharge passage 55 and the conveyance passage 60. There is.

Further, at the exit of the image erasing device 51, a paper size detection sensor 61 for detecting the paper size of the erased recycled paper 33 output from the image erasing device 51.
Is provided. The paper size detection sensor 61 constitutes a part of a discharge control unit for each size of recycled paper. Based on the signal detected by the paper size detection sensor 61, the recycled paper size discharge control means discharges the erased recycled paper 33 onto the sorter bin 4 of the sorter unit 1 according to the paper size. In addition, recycled paper re-feeding path 62
However, printed paper discharge passage 55 and recycled paper supply passage 56
It is formed near the position where and branch. The recycled paper refeeding path 62 constitutes a part of recycled paper refeed control means. The recycled paper re-feed control means re-feeds the erased recycled paper 33 discharged on the sorter bin 4 for each paper size to the reversal path 25 of the image forming apparatus 49 via the recycled paper re-feed path 62. Control. further,
Recycled paper storage trays 63a and 63b (also referred to as stack trays) serving as recycled paper storage means are provided in two stages below the image erasing device 51, and the erased recycled paper 33 erased and regenerated by this is used as a paper size. Another (eg A
3, A4 size) can be stored.

In such a structure, the image forming apparatus 4
The printed sheet 3 discharged from the sheet 9 is fed from the sheet discharge path 57 to the proof tray 5 via the conveyance path a of the sheet deflector 58.
To the sorter bin 4 via the transport path b. Printed paper 3 Printed paper set in paper feed tray 53
Is sent to the printed paper discharge passage 55 via the conveying path b of the paper deflecting device 58, and is guided into the image erasing device 51 while being sent to the midway conveying roller 64. This image erasing device 51
Erased recycled paper 3 which has been erased and regenerated in
3 passes through the recycled paper supply passage 56 on the lower side to branch the pawl 6
5, the sheet is again sent to the reversing path 25 via the recycled paper supply passage 56a in the image forming apparatus 49. This allows
The operator inserts the erased recycled paper 33 into the paper feed tray 18a.
The paper can be fed immediately without the need to set it again, and the operability can be improved.

Further, the paper size of the erased recycled paper 33 output from the image erasing device 51 is detected by the paper size detection sensor 61, and the erased recycled paper 3 is detected.
3 is sent from the recycled paper supply passage 56 to the printed paper discharge passage 55 above by the branching claw 65, and is sent to the sorter section 1 of the discharge passage 60 via the paper deflecting device 58. At this time, the erased recycled paper 33 is discharged to the sorter bin 4 for each paper size by using the discharge control means for each recycled paper size based on the signal detected in advance. As a result, it is possible to omit the operator's coordination work for the reproduced erased recycled paper 33, and to improve the efficiency of the work. Also,
By using the recycled paper re-feed control means, the erased recycled paper 33 stored on the sorter bin 4 for each paper size,
The printed sheet discharging passage 55 is passed through the sheet deflecting device 58, and is guided to the recycled sheet refeeding path 62 by the branching claw 66. From the recycled sheet refeeding path 62, the image forming apparatus 4 is driven.
9 can be re-fed to the reversing path 25. As a result, the erased recycled paper 33 on the sorter bin 4 can be re-fed to the image forming apparatus 49 side as needed, the re-feeding can be controlled by a simple mechanism, and the erased image can be erased. Used recycled paper 33 as the paper feed tray 1 of the image forming apparatus
It is possible to quickly replenish the paper without having to refeed the paper 8b.

Further, the erased recycled paper 33 output from the image erasing device 51 is conveyed to the recycled paper storage tray 63a by the branch claw 67 in the case of A3 size, and A4 size A4.
In the case of the size, it is conveyed to the recycled paper storage tray 63b by the branching claw 68 and stored therein. When the erased recycled paper 33 is needed on the image forming apparatus 49 side, the recycled paper storage tray 63a (or 6) corresponding to the size is used.
3b) is fed to the recycled paper supply passage 56 by the paper feed roller 69, guided to the recycled paper supply passage 56a of the image forming apparatus 49 by the branch claw 65, and further conveyed to the reversal path 25, so that the paper can be fed immediately. Therefore, the operability can be improved.

Since the printed paper feed tray 53 is provided above the sorter unit 1, the printed paper 3 can be fed without the operator having to bother to perform the reproduction processing, and the operation can be performed. It is possible to improve the sex.
Further, the printed paper feed tray 53 is attached so as to be openable and closable, and the image erasing device 51 is set to be in a standby state when it is opened. It is possible to prevent the operator from mistakenly supplying the original document in the cut state. Moreover, since the image erasing device 51 is in the standby state at the same time as the opening, the operator can immediately perform the image erasing process, and the workability can be improved.

Next, an embodiment of the invention described in claims 2 and 3 will be described with reference to FIG. The above-mentioned claim 1,
Descriptions of the same parts as those of the inventions described in 4 and 5 are omitted,
The same reference numerals are used for the same portions.

As described above, when the erased recycled paper 33 stored in the sorter bin 4 or the recycled paper storage trays 63a and 63b is conveyed to the image forming apparatus 49 side according to the paper size, the irregular size paper is mistakenly sent. If the paper is wavy or is fed with wrinkles or wrinkles, a trouble such as a jam in the image forming apparatus 49 may occur.

Therefore, in this embodiment, in the image carrier post-processing device 50 according to the first aspect of the present invention, the following constitutional requirements are adopted. That is, first, at the sheet discharge port 51a of the image erasing apparatus 51, a recycled paper size / recycled paper size / state detecting means for detecting the paper size of the erased recycled recycled paper 33 or its paper state.
A state detection sensor 61 (provided that the same number is used here because it is provided at the same position as the sheet size detection sensor 61 described above), and the detected erased regenerated paper 33 is used. If the size is out of the specified range or the paper state is defective due to wrinkles, etc., the erased recycled paper 33 is not sent to the image forming apparatus 49 side but discharged to the soda bin 4 or proof tray 5 outside the main body. Recycled paper transport control means (not shown) for paper is provided.

Further, at the supply port 53a of the printed paper supply tray 53, the printed paper size / status detection means for detecting the paper size or the paper status of the printed printed paper 3 is detected. Sensor 70
Is provided, the printed paper 3 is not sent to the image erasing device 49 side when the detected paper size of the printed paper 3 is a non-regular size or the paper is in a defective state due to wrinkles or the like. Further, a printed paper conveyance control means (not shown) for discharging the paper to the soda bin 4 or the proof tray 5 outside the main body is provided.

In this case, a laser measuring machine can be used to measure the sheet surface state, wavy state, wrinkles, and toner remaining due to unerased erased recycled paper 33. Further, a light transmissive sensor or a light reflective sensor can be used to measure the paper size of the erased recycled paper 33. In this embodiment, a laser measuring machine is used as the recycled paper size / state detection sensor 61, and a light reflection type sensor (or a light transmission type sensor) is used as the printed paper size / state detection sensor 70.

In such a structure, first, the erased recycled paper 33 discharged from the paper discharge port 51a of the image erasing device 51 is detected by the recycled paper size / state detection sensor 61, and wrinkles or wrinkles occur, which causes a defect. If it is determined that the state is in the state, the defective recycled erased paper 33 is not sent to the image forming apparatus 49 side by the recycled paper conveyance control means, and printed by the branching claws 65 and 66 from the recycled paper supply passage 56. The sheet is sent to the sheet discharge path 55, and is discharged onto the sorter bin 4 by the sheet deflecting device 58 using the conveyance path 60 of b, or is discharged onto the proof tray 5 through the conveyance path 59 of a and the branching claw 71. . As a result, the erased recycled paper 33, which is wavy or wrinkled, is not sent to the image forming apparatus 49 side.
It is possible to prevent the occurrence of jam inside.

Further, when the printed paper 3 supplied from the supply port 53a of the printed paper supply tray 53 is detected by the printed paper size / state detection sensor 70 and is determined to be out of the specified size, the printed paper 3 is printed. Instead of sending the printed sheet 3 to the image erasing device 51 side by the sheet transport control means, the sheet deflecting device 58 discharges the sheet 3 onto the sorter bin 4 using the transport path 60 of b or the transport path 59 of a.
Then, the sheet is discharged onto the proof tray 5 through the branching claw 71.
As a result, the printed sheet 3 out of the specified size is not sent to the image forming apparatus 49 side, so that the occurrence of jam in the image forming apparatus 49 can be prevented.

[0036]

According to the first aspect of the present invention, an image carrier including at least a sorter section for sorting printed sheets on which images have been formed by performing various processes such as transfer and fixing by the image forming apparatus is provided. In the processing device, a wetting means for wetting the toner on the surface of the printed paper and a toner peeling means for heating the surface of the paper after the wetting to remove the toner adhering to the surface to make erased recycled paper and after the peeling An image erasing device having a drying means for drying the wet erased recycled paper is provided below the sorter section, and a printed paper feeding means for feeding the printed paper to the image erasing device from the outside of the main body is provided. It is provided above the sorter unit, detects the paper size of the erased recycled paper output from the image erasing device, and sorts the erased recycled paper according to the paper size. Since there is a discharge control device for each size of recycled paper that is discharged onto the sorter bin of the printer section, the image erasing device is incorporated and integrated in the empty space below the sorter section in this way to retain the image in the office. It is not necessary to separately install the image forming apparatus and the image erasing apparatus having the body post-processing apparatus, and it is possible to reduce the space in the office. Further, by disposing the printed paper supply means above the sorter section, the printed paper can be supplied without the operator having to bother, and the operability can be improved. further,
Since the erased recycled paper erased and reproduced by the image erasing device is discharged onto the sorter bin according to the paper size, sorting work by an operator is not required, and the work efficiency can be improved.

According to a second aspect of the present invention, in the first aspect of the present invention, the sheet size or state of the sheet of the erased recycled sheet reproduced or the sheet state thereof is detected at the discharge port of the image erasing device. A detection unit is provided, and when the detected erased recycled paper has a non-regulated size or the paper is in a defective state due to wrinkles or the like, the erased recycled paper is sent to the image forming apparatus side. Since a recycled paper conveyance control means for discharging the paper to the outside of the main body is provided,
Jam in the image forming apparatus can be prevented in advance.

According to a third aspect of the present invention, in the first aspect of the present invention, the paper size of the printed paper printed on the supply port of the printed paper supply means or the size of the printed paper for detecting the paper state is detected. State detection means is provided, and if the detected paper size of the printed paper is out of the specified size or the paper condition is defective due to wrinkles, etc., the printed paper is not sent to the image erasing device side. Since the printed paper conveyance control means for discharging the paper to the outside of the main body is provided in the main body, it is possible to prevent a jam in the image forming apparatus.

According to a fourth aspect of the present invention, in the first aspect of the present invention, since the recycled paper storage means for storing the erased recycled paper discharged from the image erasing apparatus is provided, the stored erased recycled paper is stored. Paper can be supplied to the image forming apparatus side as needed, and operability can be improved.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a printed paper feeding means for feeding printed paper from the outside of the main body is attached so as to be openable and closable, and the image erasing device is in a standby state when opening. So that
When not in use, the image erasing device is closed and the image erasing device does not operate. Therefore, it is possible to prevent the operator from mistakenly feeding a document. Moreover, in this case, since the image erasing apparatus is in the standby state at the same time as the opening, the operator can immediately perform the image erasing process, and the work efficiency can be improved.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the regenerated sheet refeed control means for refeeding the erased regenerated sheet discharged on the sorter bin for each sheet size to the image forming apparatus side. Since it is provided, re-feeding can be controlled with a simple mechanism, and it is possible to quickly replenish the erased recycled paper that has undergone image erasing without having to re-feed it to the paper feed tray of the image forming apparatus. You can

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view showing the configuration of an image carrier post-processing apparatus connected to an image forming apparatus that is an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional front view showing a configuration of an image carrier post-processing device which is a conventional example.

FIG. 3 is a vertical sectional front view showing a configuration of an image forming apparatus which is a conventional example.

FIG. 4 is a vertical cross-sectional front view showing a configuration of an image erasing apparatus which is a conventional example.

[Explanation of symbols]

1 Sorter Part 3 Printed Paper 4 Sorter Bin 25 Inversion Path 31 Wetting Means 32 Toner Peeling Means 33 Erased Recycled Paper 34 Drying Means 49 Image Forming Device 50 Image Carrier Post-Processing Device 51 Image Erasing Device 51a Paper Exit 52 Printed Paper Supply means 53a Supply port 61 Paper discharge control means for each recycled paper size (recycled paper size / status detection means) 62 Recycled paper refeed control means 63a, 63b Recycled paper storage means 70 Printed paper size / status detection means

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Claims (6)

[Claims] 1. An image carrier post-processing apparatus comprising at least a sorter section for sorting printed sheets on which images are formed by performing various processes such as transfer and fixing by the image forming apparatus. Wet means for wetting the toner on the surface of and the surface of the paper after the wetting is peeled off, and the toner adhering to the surface is peeled off to be erased recycled paper. An image erasing device provided with a drying means for drying is provided below the sorter unit, and a printed paper supply unit for supplying a printed paper from the outside of the main body to the image erasing device is provided above the sorter unit. The paper size of the erased recycled paper output from the image erasing device is detected, and the erased recycled paper is discharged onto the sorter bin of the sorter unit according to the paper size. An image carrier post-processing apparatus characterized in that it is provided with a discharge control means for each size of recycled paper. 2. An ejecting port of the image erasing apparatus is provided with a regenerated paper size / state detecting means for detecting the paper size of regenerated erased regenerated paper or its paper state, and the detected erased recycled paper When the paper size is out of the specified range or the paper condition is defective due to wrinkles, etc., the recycled paper transport control means for discharging the erased recycled paper to the outside of the main body without sending it to the image forming apparatus side. The post-processing device for an image carrier according to claim 1, wherein the post-processing device is an image carrier. 3. A printed sheet size / state detecting means for detecting the sheet size of the printed sheet or the state of the printed sheet is provided at the supply port of the printed sheet supply means, and the detected sheet of the printed sheet is detected. If the paper size is out of the specified range or the paper condition is defective due to wrinkles, etc., the printed paper conveyance control means for discharging the printed paper to the outside of the main body without sending it to the image erasing device side The post-processing device for an image carrier according to claim 1, wherein the post-processing device is an image carrier. 4. An image carrier post-processing apparatus according to claim 1, further comprising a recycled paper storage means for storing erased recycled paper discharged from the image erasing apparatus. 5. A printed paper feeding means for feeding printed paper from the outside of the main body is openably and closably attached, and the image erasing device is put in a standby state when the opening is made. Image carrier post-processing device. 6. A recycled paper re-feeding control means for re-feeding the erased recycled paper discharged according to the paper size to the image forming apparatus side on the sorter bin.
The post-processing device for the image carrier described.