JPH0830155A - Image holding sheet reproducing device - Google Patents

Abstract

PURPOSE:To adjust the moisture content as desired while preventing from the generation of wrinkles or undulation, even at the time of processing the transfer paper having different property or when the processing capacity varies, by detecting the state of the drying processed transfer paper and changing the setting conditions basing on the result. CONSTITUTION:The transfer paper reproducing device is provided with the state sensor 6 for detecting the state of transfer paper 10 processed by drying unit 4, the control device as the setting alternation means for alternating the setting of the process conditions of the unit 4 basing on the detection result of the state sensor 6. The device is preferably provided with the branching pawl at the outlet of the unit 4, the transporting path for transporting the branched transfer paper to the unit 4 inlet and the braching pawl controlled basing on the detecting result of the state sensor 6. Moreover, the liquid applying device is preferably disposed on the transporting path. Furthermore, the transporting path for returning the branched transfer paper to the inlet of the liquid applying unit 2 is preferably disposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image-holding sheet on which an image-forming substance is stably attached by an image-forming apparatus such as a copying machine, a facsimile machine, a printer or a printing machine. The present invention relates to a reproducing device for an image holding sheet, which removes an image forming substance by applying an instability liquid that makes the adhesion unstable to the image holding sheet.

[0002]

2. Description of the Related Art Conventionally, various image forming substance removing methods and devices for removing image forming substances such as toner from a sheet as a recorded image holding sheet are known. For example, as one using a solvent, Japanese Patent Laid-Open No.
Japanese Patent Application Laid-Open No. 101576 discloses a method for removing an image forming substance in which a sheet having a toner attached thereto is immersed in a soluble solvent of a toner resin and ultrasonic vibration is applied to release the toner dissolved in the solvent from the surface of the sheet. There is. In addition, JP-A-4-3
No. 00395 discloses that a printed portion of waste paper is dipped in a solvent,
Dissolve the toner by adhering it by a method such as spraying or coating, remove the dissolved toner by washing, air suction, adsorbent contact, mechanical peeling or electrostatic adsorption, and then finish the paper such as drying and stretching. A method of removing an image forming substance is disclosed.

On the other hand, as one not using a solvent, for example, Japanese Patent Application Laid-Open No. 2-55195 discloses a heat-meltable ink which is placed on a printing material having a support coated with a release agent by an electrophotographic method or a thermal transfer method. Toner is placed on the printed body with the ink release body passed through between the heating roller and the pressure roller,
An image forming substance removing method is disclosed in which the ink peeling body is cooled and then peeled off so that the ink peeling body adheres to the ink peeling body to be removed. Further, in Japanese Unexamined Patent Publication No. 4-64472, at least an endless sheet having a heat-melting resin on the surface, a heat roller and a cooling roller for supporting and rotating the endless sheet, and paper having a release treatment on the surface (erasable paper) There is disclosed an eraser including a pressing roller that presses against a softened or melted heat-melting resin, and a drive unit that moves these in conjunction with each other. In addition, JP-A-4-8298
In Japanese Patent Publication No. 3, two parallel rollers that rotate in pressure contact with each other to pass the paper through the pressure contact point, a heater that heats at least one of the two rollers, and a roller that passes through the pressure contact point. There is disclosed an image forming substance removing device including a scraping tool for separating paper from the roller, and a peeling device for removing the image forming substance attached to the roller from the roller.

By the way, when the above solvent-free method and apparatus are used for removing an image-forming substance from a recorded image-holding sheet having an image recorded on a normal paper having paper fibers exposed on the surface, For example, in an electrophotographic fixing process, the image-forming substance containing a heat-melting resin as a main component is fused to the image-holding sheet, so that the image-forming substance is firmly fixed to the fibers on the surface of the image-holding sheet. Therefore, when the image-forming substance is removed, the paper fibers on the surface are stripped together with the image-forming substance and the paper quality is damaged. In particular, in order to improve the removability of the image-forming substance, when heat or pressure is applied to the above ink peeling body, endless sheet or roller, depending on various conditions, the image-forming substance and the image-holding sheet may be reversed. In some cases, the fixing property was increased and the removal became difficult.

Therefore, the present applicant has previously proposed that the recorded image-holding sheet has water as a destabilizing agent, an aqueous solution containing a surfactant, an aqueous solution containing a water-soluble polymer, and a surfactant and a water-soluble polymer. From an image holding sheet by holding at least one kind of water or aqueous solution selected from the group consisting of aqueous solutions containing A method for removing the image-forming substance to be peeled off was proposed (for example, Japanese Patent Application No.
-255916). According to this, only the image forming substance can be removed without relatively damaging the paper quality of the image holding sheet.

[0006]

[Patent Document 1] Japanese Patent Application No. 4-255
The image-holding sheet immediately after the image-forming substance is removed by the image-forming substance removing method proposed in No. 916 is impregnated with the above liquid, so that it is used as it is for image formation in, for example, an electrophotographic copying machine. However, it becomes difficult to stably attach the image forming substance. Further, since it is impregnated with the above liquid, it is difficult to handle.

Therefore, the applicant of the present invention adjusts the moisture content of the destabilizing liquid in the image holding sheet from which the image forming material has been removed to adjust the adhesion of the surface of the image holding sheet to the image forming material. There has been proposed an image holding sheet reproducing apparatus provided with a stabilizing means for stabilizing the adhesion (for example, Japanese Patent Application No. Hei 5-22211).
No. 8, Japanese Patent Application No. 5-222855, Japanese Patent Application No. 5-2698
73). According to this, the adhesion of the surface of the image-holding sheet to the image-forming substance is stabilized again, so that the image-holding sheet after removal of the image-forming substance can be stably reused for image formation. , Easy to handle.

However, in the reproducing apparatus provided with the above-mentioned adhesion stabilizing means, the thickness of the image holding sheet to be processed,
Due to the different properties, it is difficult to completely adjust the moisture content for all image-holding sheets, and the moisture content of the image-holding sheet may not be removed sufficiently, or wrinkles and wrinkles may occur. There were cases. Such a problem may occur even when the processing capacity of the adhesion stabilizing means changes as the number of times the image holding sheet is processed.

The present invention has been made in view of the above problems, and an object of the present invention is to process an image holding sheet having different thickness, properties, etc., or to change the processing capacity of the adhesion stabilizing means. By providing a regenerating device for an image holding sheet, which can satisfactorily regenerate the image holding sheet by adjusting to a desired moisture content without causing curling, wrinkling, waviness, etc. is there.

[0010]

In order to achieve the above object, an image-holding sheet having a fibrous surface on which an image-forming substance is fixed has an adhesive property between the image-forming substance and the surface. A destabilizing liquid applying means for applying a destabilizing liquid to make the image destabilizing state, an image forming substance removing means for removing an image forming substance from the image holding sheet to which the destabilizing liquid is applied, An image holding sheet provided with an adhesion stabilizing means for adjusting the moisture content of the destabilizing liquid in the image holding sheet from which the forming substance has been removed to stabilize the adhesion to the image forming substance on the surface. In the reproducing apparatus of claim 1, the invention according to claim 1 is based on a state detecting means for detecting the state of the image holding sheet processed by the adhesive stabilizing means, and based on the detection result of the state detecting means, And a setting changing means for changing the setting of the processing condition of the digitalizing means. According to a second aspect of the present invention, there is provided a state detecting means for detecting a state of the image holding sheet processed by the adhesion stabilizing means, and an image holding sheet having a state detected by the state detecting means. And a control means for controlling the operation and non-operation of the transportation means based on the detection result of the state detection means. According to a fifth aspect of the present invention, the state detecting means for detecting the state of the image holding sheet processed by the adhesion stabilizing means and the image holding sheet for which the state is detected by the state detecting means are re-inspected. Conveying means for feeding the stabilizing liquid applying means and the adhesion stabilizing means, control means for controlling the operation and non-operation of the conveying means based on the detection result of the state detecting means, and the state detecting means. Based on the detection result of It is characterized by providing a setting changing means for changing the setting of the processing conditions at the time of re-treatment with Joka means.

According to a third aspect of the present invention, in the image holding sheet reproducing apparatus according to the second aspect, the processing conditions at the time of reprocessing by the adhesion stabilizing means are set based on the detection result of the state detecting means. It is characterized in that a setting changing means for changing is provided.

According to a fourth aspect of the present invention, in the image holding sheet reproducing apparatus according to the second or third aspect, a moisture content imparting means for imparting moisture content to the image holding sheet in the transport path of the transporting means, A control means for controlling the operation and non-operation of the moisture content applying means based on the detection result of the state detecting means is provided.

According to a sixth aspect of the present invention, in the image holding sheet reproducing apparatus according to the fourth or fifth aspect, the moisture imparted to the image carrier sheet by the moisture imparting means is based on the detection result of the state detecting means. The amount of the destabilizing liquid or the amount of the destabilizing liquid applied to the image holding sheet by the destabilizing liquid applying unit is controlled.

The change of the setting of the processing condition in the above claim 1, 3 or 5 includes the case where the processing condition is not changed.

According to the present invention, the destabilizing liquid is applied by the destabilizing liquid applying means to the image holding sheet having the image forming substance fixed on the fibrous surface. To make the adhesion between the image-forming substance and the surface of the image-holding sheet unstable. Then, the image forming substance is removed from the image holding sheet to which the destabilizing liquid is applied by the image forming substance removing device. Then, the adhesion stabilizing means adjusts the moisture content of the destabilizing liquid in the image holding sheet from which the image forming substance has been removed from the surface. As a result, the adhesion of the surface of the image holding sheet to the image forming substance is stabilized again.

Particularly, in the invention of claim 1, the state of the image-holding sheet treated by the adhesion stabilizing means, for example, the degree of wrinkles, waviness, curl, elongation, etc. generated on the image-holding sheet, image holding At least one of the amount of moisture remaining on the image forming sheet and the thickness of the image holding sheet is detected by the state detecting means, and the setting changing means detects the adhesiveness stabilizing means based on the detection result of the state detecting means. Change the processing condition settings of.

Here, the processing conditions include the conveyance speed of the image holding sheet and the holding pressure of the holding and conveying member when the destabilizing means has a holding and conveying member for conveying while holding the image holding sheet. , If there is a device for pulling the image holding sheet in the transport direction, its pulling force,
The conveyance speed of the image holding sheet, the temperature of the heat source in the case of having a heat source for drying the image holding sheet, the power applied to the heat source, and the like are mentioned, but not limited thereto.

Then, for example, when the image-holding sheet has a large curl or wrinkles are generated, the conveying speed is increased, the clamping pressure is decreased, and the temperature of the heat source is decreased. Change the processing condition settings. Further, for example, when the image holding sheet has a large amount of waviness, the setting of the processing condition is changed so as to increase the pulling force. Further, for example, when there is a large amount of moisture remaining on the image-holding sheet after processing, the setting of processing conditions is changed so as to slow down the transport speed or raise the temperature of the heat source.

By changing the setting of the processing conditions as described above, even if the processing capacity of the adhesion stabilizing means is changed, the predetermined processing capacity is restored from the reproduction processing of the next image holding sheet. As a result, it becomes possible to adjust the moisture content to a desired level without causing curling, wrinkling, waviness and the like. Further, even when performing a series of reproduction processing of a plurality of image holding sheets having different thicknesses and properties from those of the image holding sheets up to that point, from the second and subsequent image holding sheets of the series of reproduction processing, The desired moisture content can be adjusted without causing curling, wrinkling, waviness and the like.

Particularly, in the invention of claim 2, the state of the image holding sheet processed by the adhesion stabilizing means is detected by the state detecting means, and the moisture content of the image holding sheet is detected based on the detection result. If it is determined that the sheet has not been sufficiently removed, the conveyance means is controlled to operate and the image holding sheet whose state has been detected by the state detection means is fed again to the adhesion stabilization means, The moisture content of the image carrier sheet can be removed again to adjust the moisture content to a desired value.

In particular, according to the third aspect of the present invention, based on the detection result of the state detecting means by the setting changing means, the setting of the processing condition at the time of reprocessing by the adhesion stabilizing means is changed, and the adhesion is changed. Reprocessing by means of sex stabilization is performed. For example, when the image-holding sheet has a large curl or wrinkles are generated, the processing conditions are set such that the conveying speed is increased, the holding pressure is decreased, or the temperature of the heat source is decreased. By changing the setting of and reprocessing, an image holding sheet without curl or wrinkle can be obtained. Further, for example, when the image-holding sheet has a large amount of waviness, the image-holding sheet with less waviness can be obtained by changing the processing condition settings so as to increase the tensile force and performing the reprocessing. Further, for example, when there is a large amount of moisture remaining on the image-holding sheet after processing, the processing conditions are changed and reprocessing is performed so as to slow down the transport speed or raise the temperature of the heat source. As a result, the desired moisture content can be adjusted.

Particularly, in the invention of claim 4, based on the detection result of the state detecting means, the operation of the moisture content applying means for applying the moisture content to the image holding sheet in the transport path of the transporting means, It controls inactivity. For example, when it is judged that the processing of the image holding sheet by the adhesion stabilizing means has failed based on the detection result of the state detecting means, that is, when the image holding sheet is too dry, the image holding sheet is curled, wavy, or wrinkled. When it is determined that the reprocessing cannot be performed in the state as it is, a moisture content is imparted to the image holding sheet by the moisture content providing means to make it reprocessable, and then the adhesion is performed. It is sent to the sex stabilization means for reprocessing.

Particularly, in the fifth aspect of the invention, when it is judged that the processing of the image holding sheet by the adhesion stabilizing means fails based on the detection result of the state detecting means, that is, it is too dry. When it is determined that the image holding sheet has a problem such as curling, waviness, or wrinkles in this state, and it cannot be reprocessed as it is, the state detecting means controls the conveying means to operate. The image-holding sheet that has detected the state is sent again to the destabilizing liquid application unit and the adhesion stabilizing unit, and the destabilizing liquid application unit applies the destabilizing liquid to the image-holding sheet and re-executes it. After the processing is made possible, it is sent to the adhesion stabilizing means for reprocessing. The conveying means is configured to pass the inoperative image forming substance removing means or to bypass the image forming substance removing means during this reprocessing.

In particular, according to the invention of claim 6, based on the detection result of the state detecting means, the amount of the moisture content imparted by the moisture content imparting means or the destabilizing liquid by the destabilizing liquid imparting means is determined. The amount applied is controlled. For example, when a problem such as curling occurs in a state where the image holding sheet is not very dried, the applied amount is reduced, and wrinkles, wrinkles, and the like are generated when the image holding sheet is too dry. If the above problem occurs, the moisture content imparting means or the destabilizing liquid imparting means is controlled so as to increase the application amount. By this control, reprocessing can be performed, and the level of moisture content of the image holding sheet before reprocessing can be made uniform. In this case, depending on the degree of the above-mentioned problem, it is not necessary to change the setting of the processing condition at the time of reprocessing by the adhesion stabilizing means.

[0024]

EXAMPLES In the following, the present invention removes a heat-melting toner (hereinafter referred to as “toner”) as an image forming substance from a transfer paper as an image holding sheet on which an image is formed by a transfer type electrophotographic copying machine. An embodiment applied to a reproducing apparatus for reproducing the transfer sheet will be described. [Embodiment 1] FIG. 1 shows an example of a transfer paper recycling apparatus to which the present invention can be applied. In FIG. 1, the reproducing apparatus includes a paper feed unit 1 for separating and feeding the transfer papers 10 on which toner images are formed, which are housed in a stacked state, and a transfer paper sent from the paper feed unit 1. A liquid applying unit 2 as a destabilizing liquid applying unit that supplies a destabilizing liquid (hereinafter referred to as a “processing liquid”) 20 to the image forming apparatus 10, and an image forming substance that removes toner from the transfer paper 10 to which the processing liquid 20 is supplied. A toner peeling unit 3 as a removing unit, a drying unit 4 as an adhesion stabilizing unit that dries the transfer paper 10 from which the toner is removed and stabilizes the adhesion with the toner, and a transfer discharged from the drying unit 4. A paper receiving unit 5 for receiving the paper 10 is provided. Then, in this reproducing apparatus, the liquid application unit 2 applies the treatment liquid 20 to the transfer paper 10 to make the adhesion state of the transfer paper 10 and the toner unstable,
The toner is peeled from the transfer paper 10 by the peeling roller 302 of the toner peeling unit 3 in a state where the treatment liquid 20 permeates at least the interface between the transfer paper 10 and the toner to make the adhesion between the toner and the transfer paper 10 unstable. After that, the transfer paper is dried by the drying unit 4 so that it can be reused.

Here, as the treatment liquid 20, water, an aqueous solution containing a water-soluble polymer, an aqueous solution containing a surfactant,
At least one kind of water or an aqueous solution selected from the group consisting of an aqueous solution containing a water-soluble polymer and a surfactant can be used. Further, the water or the aqueous solution may contain a predetermined organic solvent. Moreover, as the processing liquid 20, only an organic solvent can be used.

The above water-soluble polymer enters the eyes of the paper fibers in this manner in order to efficiently remove the toner which is hard to adhere to the surface of the peeling member described later and which is difficult to adhere to the eyes of the paper fibers. It acts as a binder between the existing toner and the surface of the peeling member. Examples of the water-soluble polymer include starchy substances (cane starch,
Potato starch, tapioca starch, wheat starch, corn starch, etc.), mannan (konjac etc.),
Natural polymers of seaweed (funnel, agar, sodium alginate, etc.), plant mucilage (trolooi, tragacanth, gum arabic, etc.), microbial mucilage (dextran, levan, etc.), protein (nikawa, gelatin, casein, collagen, etc.) And cellulosics (viscose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, carboxymethyl cellulose, etc.),
Examples thereof include, but are not limited to, starch-based (soluble starch, carboxymethyl starch, dialdehyde starch) semi-synthetic polymers and synthetic polymers. (Hereinafter, margin)

Further, the above-mentioned surfactant promotes the permeation of water into the interface between the paper and the toner. Examples of the surfactant include anionic (carboxylic acid salt, sulfonic acid salt, sulfuric acid ester salt, phosphoric acid ester salt, phosphonate, etc.), cationic (amine salt, quaternary ammonium salt, benzalkonium salt). Salt, beruzethonium chloride salt,
Pinidinium salt, imidazolinium salt, sulfonium salt, polyethylene polyamine, etc.), amphoteric system (amino acid,
Carboxybetaine, sulfobetaine, aminosulfate, aminocarboxylic acid salt, imidazoline derivative, etc.),
Nonionic (ether type, ether ester type, ester type, nitrogen-containing type, polyhydric alcohol, amino alcohol,
Examples thereof include usual surfactants such as polyethylene glycol) and fluorochemical surfactants, but are not limited thereto.

As the organic solvent contained in the water or the aqueous solution, turpentine, dipentene, butyl acetate, carbon tetrachloride, cellosolve acetate, xylene, toluene, ethyl acetate, diacetone alcohol, methyl cellosolve acetate, benzene, methyl ethyl ketone, Examples thereof include, but are not limited to, methyl acetate, methylene chloride, ethylene dichloride, cyclohexane, cellosolve, dioxane, acetone, methyl cellosolve, cyclohexanol, butanol and the like.

As the organic solvent used alone, carbon-hydrogen solvents such as hexane, heptane, octane, nonane, spirit, naphtha N01-6 (trade name of Shell Petroleum Co.), Isopar E, L, K, V (trade name of Exxon Co.), IP Solvent (trade name of Idemitsu Oil Co., Ltd.), Shell-sol 70, 71, Solvesso 100,
150 (trade name of Shell Oil), Ascom OMS,
460 (trade name of Spirits), Vegasol 103
0,2130,3040 (trade name of Mobil Oil Co., Ltd.) and the like. Further, Fluorinert FC40, 43, 70, 77 (trade name of Sumitomo 3M), which is a fluorine-based solvent,
Aflude E10, 16, 18, etc., Shin-Etsu Silicone KF96 (trade name) which is a silicone solvent, Toray Silicone SH200, 344 (trade name), Toshiba Silicone T
SF431 (trade name) and the like are included, but the invention is not limited thereto.

Next, the units 1, 2, 3 of the illustrated example
4, 5 will be described. The sheet feeding unit 1 feeds the transfer sheets 10 stacked on the bottom plate 101 from the uppermost one by the sheet feeding roller 102, separates the double feeding by a separating mechanism (not shown), and forms one sheet of the transfer sheet 10. Only the registration roller pair 104 for timing adjustment and skew correction is sent out. The specific configuration and operation are the same as those of the paper feeding mechanism in the electrophotographic copying machine, and therefore detailed description will be omitted.

The liquid application unit 2 is in contact with the liquid container 201 filled with a predetermined amount of the processing liquid 20 and one surface (the upper surface in the drawing) of the transfer paper 10 and the processing liquid 20 in the liquid container 201.
The submerged conveying roller 202 that conveys the liquid to guide the inside, the driving unit (not shown) of the submerged conveying roller 202, and the other surface (the lower surface in the drawing) of the transfer paper 10 into the treatment liquid 20 of the liquid container 201. A submerged guide plate 203 for guiding, a pair of squeezing rollers 204 also functioning as a holding and conveying means, and a squeezing bar 205 that is arranged so as to bite into the lower squeezing roller 204 are provided.
In the unit 2, the transfer paper 10 fed from the paper feeding unit 1 is guided into the treatment liquid 20 in the liquid container 201 by the submerged conveying roller 202 and the submerged guide plate 203, and immersed in the treatment liquid 20. After being squeezed
The excess processing liquid 20 is removed by the above and is conveyed to the next toner peeling unit 3. Note that instead of directly passing the transfer paper 10 through the treatment liquid to apply the treatment liquid to the transfer paper 10 as in this example, the treatment liquid is applied to the surface of the transfer paper 10 by an application roller or transferred by a sprayer. The atomized treatment liquid may be attached or applied to the surface of the paper 10. Any other method can be used.

The toner peeling unit 3 includes a heating lamp 301 as a toner softening means and has a pair of peeling rollers 302 as peeling members arranged in pressure contact with each other, and in the vicinity of the pressure contact portion on the transfer paper discharge side. Peeling roller 3
The separation claw 303 arranged so as to contact the surface of 02.
A cleaning device 304 for cleaning the surface of the peeling roller 302, a drive unit (not shown), and the like are provided.

The surface of the peeling roller 302 is made of a material having an adhesive force larger than that of the transfer paper 10 and the toner to at least the softened toner. Specifically, the same or similar toner component resin as the above toner, component resin of an adhesive, or the like can be used,
In addition, aluminum-based, copper-based, nickel-based, and other metal materials can be used, but are not limited thereto. The resin may be water-soluble or water-insoluble.

Examples of the toner component resin include, but are not limited to, polystyrene resin, acrylic resin, methacrylic resin, styrene-butyl acrylic copolymer, styrene-butadiene copolymer, polyester resin, and epoxy resin. Not a thing.

As the component resin of the adhesive, protein adhesives such as glue, gelatin, albumin, and casein, and carbohydrate-based adhesives such as starch-based, cellulose-based, complex polysaccharide-based (arabic gum, tragacanth gum, etc.) Agents, vinyl acetate polymers and copolymers, acrylics,
Heat-soluble adhesives such as ethylene copolymers, polyamides, polyesters, polyurethanes, polychloroprene-based, nitrile rubber-based, recycled rubber-based, SBR-based, rubber-based adhesives such as natural rubber-based, rubber-based, acrylic-based, etc. Polyethylene terephthalate (PE) with pressure-sensitive adhesive and titanium oxide dispersed
T), etc., but not limited thereto.

When the above resin is used, it is desirable to have a multi-layer structure of at least two layers of a support and a surface layer from the viewpoints of preventing elongation due to tension and heat, durability and the like. That is, when the peeling body is formed into a roller shape as in the illustrated example, it is desirable to form a peeling body by forming a surface layer made of the above resin on a roller-shaped base, for example, a rubber roller. In addition, the peeling body may be configured in a belt shape or a cut sheet shape. In any case, as a support for directly supporting the resin, a tape such as cellophane tape, kraft paper adhesive tape, polyvinyl chloride tape, acetone tape, or filament reinforcing tape can be used.

Further, the heating lamp 301 of the upper and lower peeling rollers 302 closely adheres to the front and back of the transfer paper 10 to heat and soften the toner adhered to the transfer paper 10.
The toner is easily separated from the fibers of the transfer paper 10. It is desirable to perform this heating to such an extent that the toner on the transfer paper 10 does not melt at the pressure contact portion. This is because if the toner melts, it will be difficult to transfer the toner on the transfer paper 10 to the peeling roller 302 side without dividing the toner between the paper side and the peeling roller 302 side. If it is heated too much, the transfer paper 1 is transferred while passing through the pressure contact portion of the pair of peeling rollers 302.
0 is too dry, and the fixing force of the toner to the transfer paper 10 is stronger than that when the transfer paper 10 is wet, and the transfer paper 10 adheres to the roller 302 via the toner and is separated by the separation claw 303. There is a risk that they will not be separated. Therefore,
It is desirable to heat the transfer paper 10 after passing through the heating unit to such an extent that a small amount of damp air remains and the re-adhesion of the toner can be prevented.

The cleaning device 304 includes a cleaning roller 305 for removing the toner on the surface of the peeling roller 302, a scraper blade 306 for scraping off the toner on the cleaning roller 305, and a toner for containing the toner scraped off by the scraper blade 306. A receiver (toner container) 307 is provided.

At least the surface of the cleaning roller 305 is made of a material whose releasability for the toner adhering to the peeling roller 302 is inferior to that for the toner on the surface of the peeling roller 302. Specific examples of the material include, but are not limited to, aluminum-based, copper-based, nickel-based metal materials, and polymer materials such as polyethylene terephthalate (PET) in which titanium oxide is dispersed. is not.

The drying unit 4 is for drying the transfer paper 10, and is a surface layer including an upper drying roller 402 made of, for example, aluminum and having a heating lamp 401 as a heat source, and a liquid supply member that is pressed against the upper drying roller 402 from below. And a lower drying roller 404 provided with 403. The surface blade 403 of the lower drying roller 404 is in contact with a diaphragm blade 405 for squeezing the liquid in the surface layer 403. The temperature of the heating lamp 401 of the upper drying roller 402 can be changed by changing the setting of voltage or current applied by a power source (not shown).

FIG. 2 is a schematic configuration diagram of a pressure contact means for pressing the lower drying roller 404 against the upper drying roller 402. The lower drying roller 404 is pressed against the upper drying roller 402 with a predetermined pressing force by a variable pressing means, and the transfer paper 10 is conveyed while being held between the upper and lower drying rollers 402 and 404 with a predetermined holding pressure. This pressure contact means
The central portion is connected to the rotary shaft of the lower drying roller 404, and the shaft 4
Of the pressure lever 407 and the spring 408 and the pressure lever 407 as biasing means for biasing the tip of the pressure lever 407 so that the lower drying roller 404 is pressed against the upper drying roller 402. A cam ring 409 connected to the end of the spring 408 opposite to the connecting end.
And the like. The holding pressure can be changed by rotating the cam ring 409 by a driving means (not shown) to change the height of the connecting end of the spring 408. That is, the holding pressure can be changed by changing the setting of the rotation angle of the cam ring 408.

The transfer paper 10 in the drying unit 4 is also used.
The conveyance speed of can be changed by changing the setting of the driving conditions of the upper and lower drying rollers 402 and 404 by a rotation driving device (not shown).

The upper drying roller 402 is also provided with a separation claw 420 for preventing entrainment. The separation claw 420 is rotatably supported around a shaft 420a, and is biased by a spring 421 that is a biasing means so that the tip of the claw 420 contacts the surface of the upper drying roller pair 402. Further, an entrance guide 426 that guides the transfer paper 10 to the holding portions of the upper and lower drying rollers 402 and 404, and a discharge guide 4 that guides the transfer paper 10 from the holding portions to the next paper receiving unit 5.
32 is also provided.

The paper receiving unit 5 is a paper discharge tray 5 for receiving the transfer paper discharged from the drying unit 4.
It is equipped with 01.

Further, as shown in FIG. 1, between the drying unit 4 and the paper receiving unit 5, the state of the transfer paper 10 after being processed by the drying unit 4, for example, the thickness of the transfer paper, the curl of the transfer paper, etc. A state sensor 6 is provided as a state detecting means for detecting the degree of wrinkles, waviness, and the amount of moisture remaining on the transfer paper. The state sensor 6 is a laser measuring device for detecting the variation in the distance to the regenerated transfer paper 10 and determining the degree of curling, wrinkling, or waviness of the transfer paper 10, and the remaining state of the transfer paper 10. For example, a temperature / humidity sensor for detecting the amount of moisture contained therein may be used.

FIG. 3 is a block diagram of the essential parts of the electrical equipment section of the reproducing apparatus according to this embodiment. The control device 7 as the control means is, for example, a C like the ordinary microcomputer.
It can be configured by PU, RAM, ROM, I / O interface, and the like. The controller 7 includes a power source 401a for the drying lamp 401 of the upper drying roller 402,
Rotational drive device 40 for the upper and lower drying rollers 402, 404
2a, 404a, the rotation driving device 409a for the cam ring 409, the state sensor 6 and the like are connected.
The processing conditions in each unit are the RAM, R
It is stored in the OM or the like.

In the above-mentioned structure, the transfer paper 10 sent from the paper feeding unit 1 is uniformly supplied with the treatment liquid 20 on the toner image surface of the liquid applying unit 2 and then sent to the toner peeling unit 3. In the toner peeling unit 3, the toner adhered to the transfer paper 10 is softened by heating from the peeling roller 302 and adheres to the surface of the peeling roller 302. Then, the separation claw 303 causes the separation roller 302 to move the transfer paper 10
When the sheet is separated, the toner adhered to the surface of the peeling roller 302 is peeled off from the transfer paper 10, whereby the toner is removed from the transfer paper 10. Transfer paper 10 from which toner has been removed
Is dried by the drying unit 4 and discharged to the paper receiving unit 5.

As described above, the treatment liquid 20 is supplied to the transfer paper 10 to which the toner adheres, and the toner is peeled off while the treatment liquid 20 permeates the interface portion of the transfer paper 10 with the toner, so that the paper fiber is damaged. The toner can be removed without Further, since the discharged transfer paper 10 is dried by the drying unit 4, it is easy to handle and the drying unit 4
Since the toner is returned to a state where it is easily attached by being dried by heating, it can be used as it is in an electrophotographic copying machine or the like.

In the reproducing apparatus having the above-mentioned structure, after the transfer paper 10 is dried by the drying unit 4 and before being discharged to the paper receiving unit 5, the processing state of the transfer paper 10 is detected by the status sensor 6, The set value of the processing condition of the drying unit 4 stored in the control device 7 is changed. For example, when it is determined that the curl of the transfer paper 10 is large or wrinkles are generated as a result of detection by the state sensor 6, the rotation angle of the cam ring 409 is changed and the upper and lower drying rollers 402 and 404 are held. Decrease the set value of pressure, increase the set value of transfer speed of the transfer paper 10,
The set value of the temperature of the heating lamp 401 is lowered. In addition, for example, when it is determined that there is a large amount of moisture remaining on the transfer paper 10, the set value of the transfer speed of the transfer paper 10 is decreased or the set value of the temperature of the heating lamp 401 is increased. These changed processing conditions are used in the next processing of the transfer paper, and the processing by the drying unit 4 can be performed in a better condition, so that the transfer paper 10 is prevented from curling, wrinkling, or the like, and the transfer paper is transferred. The moisture content of the paper 10 can be adjusted to a predetermined value or less.

As described above, according to this embodiment, the drying unit 4
Even if the processing capacity of the transfer paper 10 is changed, it is possible to perform proper processing by returning to the predetermined processing capacity from the next processing of the transfer paper 10, and thus it is possible to suppress the occurrence of curling, wrinkling, etc. of the transfer paper 10. In addition, the moisture content of the transfer paper 10 can be adjusted to a predetermined value or less, and the transfer paper 10 can be satisfactorily regenerated. Further, according to the present embodiment, even when a series of reproduction processing of a plurality of transfer papers 10 having different thickness and properties from the transfer paper 10 up to then is performed, the transfer of the second and subsequent sheets of the series of reproduction processing is performed. Appropriate processing can be performed from the paper 10.

Next, another structural example of the drying unit 4 that can be used in the reproducing apparatus of this embodiment will be described.
In the overall configuration diagram of the reproducing apparatus of FIG. 1, the transfer paper 10 is sandwiched by the two peeling rollers 302, and the toner is removed from both surfaces of the transfer paper 10. The drying unit can also be applied to a reproducing device configured to remove toner from only one surface of the transfer paper 10 by using only one peeling roller 302, for example.

Another example of the configuration of the drying unit 4 will be described with reference to FIG. In FIG. 4A, the drying unit includes an entrance guide 426, two pairs of rollers 457 and 458 arranged at a predetermined interval, and a transfer sheet conveyed by the two pairs of rollers 457 and 458. For example, a heater 459 as a heat source arranged so that 10 can be heated from the lower side, an infrared heater 427 as a heat source also arranged so that the transfer sheet 10 can be heated from the upper side, and an ejection guide 432 are provided. The temperatures of the heater 459 and the infrared heater 427 can be changed by changing the settings of the voltage or current applied by the power source. A separation claw 420 for preventing entrainment is also provided on the upper roller of the roller pair 458 on the downstream side of the two pairs of rollers. The separation claw 420 is rotatably supported around a shaft 420a,
It is biased by a spring 421, which is a biasing means, so that the tip end contacts the upper roller surface of the roller pair 458. Further, of the two pairs of rollers, the discharge-side roller pair 45
8 is a drive roller, and a roller pair 45 on the entrance side
7 is connected to a drive input shaft via a variable torque limiter (not shown) as a drive transmission system. Transfer paper 1
The pulling force at the time of transportation of 0 can be changed by changing the setting of the upper limit torque of the torque limiter. A guide (not shown) is provided between the heater 459 arranged below the transfer sheet and the transfer sheet conveying path to prevent the front and rear ends of the transfer sheet from hanging down and coming into contact with the heater 459.

In the above structure, the entrance guide 426
The transfer sheet 10 guided by is driven and conveyed by the roller pair 457 on the upstream side, and is sent to the roller pair 458 on the discharge side. Immediately after the leading edge of the transfer paper is gripped by the roller pair 458 on the discharge side, the torque limiter of the roller pair 457 on the upstream side is operated to generate a predetermined torque in the direction opposite to the conveying direction, Follow the rotation. As a result, the heater 42 is conveyed while the transfer paper is being conveyed in a pulled state by the pair of rollers 458 and 457.
Heat dry at 7,459. According to this, it is possible to prevent wrinkles and waviness of the transfer paper during drying.

Here, as a result of the state sensor 6 detecting the state of the transfer paper 10 after being processed by the drying unit 4, it is judged that the curl of the transfer paper 10 is large or wrinkles are generated. In this case, two pairs of rollers 457, 4
The setting value of the holding pressure of 58 is decreased, the setting value of the transfer speed of the transfer paper 10 is increased, and the setting values of the temperature of the heater 459 and the infrared heater 427 are decreased. Further, for example, when it is determined that the transfer paper 10 has a large amount of waviness, the set value of the upper limit torque of the torque limiter is changed to increase the pulling force on the transfer paper 10. Further, for example, when it is determined that the moisture content remaining on the transfer paper 10 is large, the set value of the transfer speed of the transfer paper 10 is decreased, or the set values of the temperature of the heater 459 and the infrared heater 427 are increased. To do. These changed processing conditions are used in the next processing of the transfer paper, and the processing by the drying unit 4 can be performed in a better condition, so that the transfer paper 10 is prevented from curling, wrinkling, or the like, and the transfer paper is transferred. The moisture content of the paper 10 can be adjusted to a predetermined value or less.

In the drying unit 4 of FIG. 4A, the roller pair 457 on the upstream side having a torque limiter is attached.
After the leading edge of the transfer paper is gripped by the drive roller on the discharge side, the drive input shaft may be rotated in the reverse direction or may be stopped. If the linear velocity of the upstream roller pair 457 is set lower than the linear velocity of the discharge roller pair 458, the rotation of the drive input shaft with respect to the upstream roller pair 457 is stopped or reversed. Alternatively, the predetermined torque can be exerted even if the drive input shaft continues to rotate until the leading edge of the transfer paper is gripped by the drive roller on the discharge side. Further, the upstream roller pair 45
7 can be caused to slip between the transfer sheet and the transfer sheet, the roller pair 457 is reversed or stopped after the tip of the transfer sheet is gripped by the driving roller on the discharge side. You may let me do it.

Also, the roller pair 45 on the discharge side in FIG.
8 instead of the supporting rollers 422, as shown in FIG.
Belt 4 with clamper 460 hung on 423
24 may be used. In this case, after the front end of the transfer paper is clamped by the clamper 460 of the belt 424, the transfer paper is driven to rotate, stopped, or even reversely rotated while the predetermined torque of the upstream roller pair 457 is applied. To do.

The belt 42 with the clamper 460
4 is used, as shown in FIG. 4C, the heater 46 is provided in the support roller 423 where the tip clamp is started by the clamper 460 of the belt 424 wound around it.
0 may be provided so that the transfer paper can be dried from the start of the clamp. A heater (not shown) is provided on the back side of the belt 423 instead of or in addition to the heater 460.
The transfer paper may be heated via the belt 424.

In FIGS. 4A to 4C, heaters are provided on the upper surface side and the lower surface side of the transfer paper, respectively. However, when the processing liquid 20 is concentrated on either the front or back of the transfer paper, for example, Unlike the liquid applying unit 2 in FIG. 1, when the processing liquid is applied from only one surface of the transfer paper, the heater may be arranged only on the side where the processing liquid is concentrated.

Further, in each of the configuration examples shown in FIG. 4, after the front end of the transfer paper is clamped by the discharge side roller pair 458 or the like, the upstream side of the transfer paper is driven by the roller pair 458 or the like. A torque limiter was used to exert a predetermined torque in the pulling direction by the roller pair 457, but instead of this, the transfer paper tip is a roller pair 458 on the discharge side.
Until it is clamped by the transfer roller, the rotation in the transport direction is transmitted, and after being clamped by the roller pair 458, it is pulled in the pulling direction, that is, the transfer sheet is transported to the upstream transport roller pair 457 that is rotated by the transfer sheet. A clutch or a brake that applies a predetermined torque in the opposite direction may be attached.

[Embodiment 2] Next, another embodiment in which the present invention is applied to a transfer paper recycling apparatus will be described. Figure 5
It is a front view showing a schematic structure of a reproducing device concerning a present example. In FIG. 5, the reproducing apparatus includes a sheet feeding unit 100 that separates and feeds, one by one, the sheet of transfer paper 10 on which the toner images are formed, which are stored in a stacked state, and the sheet of transfer paper sent from the sheet feeding unit 100. Liquid supplying unit 30 for supplying the processing liquid to 10, a toner peeling unit 40 for peeling and removing the toner from the transfer paper 10 to which the liquid is supplied, and a drying unit 60 for drying the transfer paper 10 from which the toner has been removed.
And a paper receiving unit 80 for receiving the transfer paper 10 discharged from the drying unit 60.

The liquid applying unit 30 supplies the processing liquid 31 to the transfer paper 10. The liquid applying unit 30 is provided with a liquid container 32 for containing the liquid and the liquid container 32 so as to be partially submerged in the liquid. An application roller 33 that draws up the liquid by the rotation and supplies the liquid to the toner image surface of the transfer paper 10 and a regulation roller 34 as a paper regulation member that is provided so as to face the application roller 33 across the paper conveyance path. I have it. As the processing liquid 31, the same liquid as the processing liquid 20 used in the embodiment of FIG. 1 can be used. The coating roller 33 is rotationally driven at a rotation speed such that the transfer paper 10 does not run out of liquid even if a desired amount of liquid is brought to the transfer paper 10 at the portion facing the transfer paper 10. Has been done. (Hereinafter, margin)

The regulating roller 34 is the coating roller 33.
So that the transfer paper 10 can be nipped and conveyed between the transfer roller 10 and the transfer roller 10, the transfer roller 10 is pressed against the surface of the transfer roller 33 or a gap larger than the thickness of the transfer paper 10 in the state where the transfer liquid 10 is supplied and increased. And is driven to rotate clockwise.

The liquid applying unit 30 guides the transfer paper 10 sent from the paper feeding unit 100 to the facing portion between the coating roller 33 and the regulating roller 34 (hereinafter referred to as the liquid supply portion). A guide mechanism 35 and a second paper guide mechanism 36 for guiding the transfer paper 10 that has passed through the liquid supply unit to the toner peeling unit 40 side are provided.

The toner peeling unit 40 has a toner offset belt (hereinafter referred to as an offset belt) 44 as a peeling member wound around a plurality of support rollers 41, 42, 43 and the offset belt 44 sandwiched therebetween. Heating lamps 45a, 4 provided so as to be pressed against each other
Upper and lower heating rollers 45 and 46 built in 6a, and a belt cleaning device 47 for removing toner from the surface of the offset belt 44 are provided. At least the surface of the offset belt 44 is formed of polyethylene terephthalate (PET) in which titanium oxide is dispersed, which is a material that is easily attached to the softened toner.

Among the rollers supporting the offset belt 44, around the small diameter roller 43 around which the belt portion after passing through the pressing portions of the upper and lower heating rollers 45 and 46 is wound,
It is possible to rapidly change the moving direction of the belt to separate the curvature of the transfer paper 10 from the offset belt 44.

The upper and lower heating rollers 45 and 46 are
The toner image surface of the transfer paper 10 is brought into close contact with the offset belt 44, and the toner fixed to the transfer paper 10 is heated and softened. This heating is done by the upper heating roller 4
5 is performed so that the toner on the transfer paper 10 does not melt at the pressure contact portion between the offset belt 44 and the offset belt 5. Further, the lower heating roller 46, together with the upper heating roller 45, is for softening the toner adhered to the transfer paper 10.

The toner peeling unit 40 includes
The transfer paper 10 sent from the liquid applying unit 30 side,
A relay conveyance roller pair 53 is provided as a holding and conveying means for entering the pressing portion. Further, an upper and lower guide member 54 is also provided for guiding the transfer paper 10 that has passed through the pressing portion and is curvature-separated from the offset belt 44 by the small diameter roller portion to the drying unit 60 side.

The drying unit 60 is, for example, the transfer paper 1.
The transfer paper 10 is dried so that the amount of moisture of 0, that is, the amount of retained liquid is 10% or less of the weight of the paper. The heating drum 61a has a heating drum 61a and is made of, for example, aluminum.
And a paper pressing belt 63 that is wound around a plurality of support rollers 62 and is endlessly moved while being wound around the peripheral surface of the heating drum 61 at a constant angle. In the illustrated example, one support roller 62 also serves as a tension roller. Further, a lower guide member 64 that guides the transfer paper 10 sent from the sandwiched portion by the heating drum 61 and the paper pressing belt 63, and two sets of discharge rollers 65 that discharge the transfer paper 10 to the paper receiving unit 80. It is provided. The temperature of the heating lamp 61a can be changed by changing the setting of the voltage or current applied from the power source. Further, the holding pressure of the transfer paper 10 by the heating drum 61 and the paper pressing belt 63 can be changed by changing the setting position of the spring 62a for urging the support roller 62 as the tension roller of the belt 63. it can.

Further, in the drying unit 60 of this embodiment,
The state of the transfer paper 10 sent from the sandwiched portion by the heating drum 61 and the paper pressing belt 63, for example, the thickness of the transfer paper, the degree of curling, wrinkles, waviness of the transfer paper, and the moisture remaining on the transfer paper. The state sensor 6 that detects the amount of the minute is provided at a position facing the lower guide member 64. As the state sensor 6, a laser measuring device, a temperature / humidity sensor or the like can be used as in the embodiment shown in FIG.

If necessary, the transfer paper 10 sent from the holding section is heated by the heating drum 61 and the paper pressing belt 6.
A switchable branching claw 66 and a transfer path 67 are provided as a transfer means for transferring to the inlet side that is fed to the holding section by the 3 and 4.
Is provided. In the middle of the conveyance path 67, a liquid application device as a moisture content application means for providing the transfer paper 10 with the moisture content is provided together with the relay transport roller pair 68a, 68b. A drive input shaft is connected to the relay conveyance roller pair 68b via a variable torque limiter (not shown). The pulling force on the transfer paper 10 at the time of reprocessing can be changed by changing the setting of the upper limit torque of the torque limiter.

The liquid applying device is composed of a mist applying device 69 for generating and applying a mist by heat or ultrasonic vibration, a liquid supply pipe 70, a liquid container 72 containing a liquid 71 such as water, and the like. The liquid 71 supplied from the container 72 through the liquid supply pipe 70 is made into a mist state by the mist applying device 69, and then applied to the transfer paper 10 by a predetermined amount. Transfer paper 1
The amount of the liquid 71 applied to 0 can be changed by changing the settings such as the heating temperature in the mist applying device 69 and the frequency / intensity of ultrasonic vibration. The liquid applying device is not limited to the configuration shown in FIG. 5, and may be composed of a coating roller, a liquid holding member such as felt, a jet nozzle, a dipping device and the like.

Further, the reproducing apparatus of the present embodiment changes the setting of the processing condition of the drying unit 60 and the switching control of the branch claw 66 based on the detection result of the state sensor 6 as in the embodiment of FIG. A control device (not shown) that controls each processing member of the drying unit 60 based on the set value of the processing condition is also provided. Note that this control device may also be used as the control device of the playback device main body.

In the above structure, the paper feeding unit 100
The transfer paper 10 sent from is supplied with the treatment liquid 31 uniformly on the toner image surface by the liquid applying unit 30, and is sent to the toner peeling unit 40. This toner peeling unit 40
Then, the toner adhered to the paper is softened by the heating from the heating rollers 45 and 46 and adheres to the surface of the offset belt 44. When the paper is separated from the offset belt 44 around the small diameter roller 43, the toner adhering to the surface of the offset belt 44 is peeled off from the paper, whereby the toner is removed from the paper. The paper from which the toner has been removed is dried by the drying unit 60 and discharged to the paper receiving unit 80.
According to this paper recycling apparatus, the treatment liquid 31 is supplied to the paper on which the toner is adhered, and the toner is heated and peeled while the treatment liquid 31 permeates the interface between the paper and the toner. The toner can be removed without damaging the toner. Further, since the discharged transfer paper 10 is dried by the drying unit 60, it is easy to handle, and the drying unit 60 returns it to a state where the toner easily adheres by being dried by heating, so that the electrophotographic image is directly taken. It can be used in copiers and the like.

In the reproducing apparatus having the above structure, after the transfer paper 10 is dried by the drying unit 60 and before it is discharged to the paper receiving unit 80, the transfer paper 1 is transferred by the state sensor 6.
It is possible to detect the processing state of 0, change the set value of the processing condition of the drying unit 60 stored in the control device as necessary, and control the switching of the branch claw 66. For example, when it is determined that the transfer paper 10 has a high moisture content as a result of detection by the state sensor 6, the branch claw 6
6 to switch the transfer paper 10 to the transport path 67,
The moisture content is not applied by the mist applying device 69, and is reprocessed by the drying unit 60 so that the moisture content of the transfer paper 10 falls within a predetermined range. In this case, it is not necessary to change the processing condition setting at the time of reprocessing the drying unit 60, for example, the transfer speed of the transfer paper 10 or the temperature of the heating lamp 61a. However, when the remaining amount of moisture is large, the set value of the transport speed may be decreased and the set value of the temperature of the heating lamp 61a may be increased.

Further, for example, when it is determined that the transfer paper 10 has a large waviness, it is similarly sent out to the transport path 67 and re-processed by the drying unit 60. By making the value stronger, it is possible to effectively suppress the occurrence of waviness.

In the reproducing apparatus of this embodiment, when the drying unit 60 fails to adjust the moisture content of the transfer paper 10 and the transfer paper 10 is excessively dried, curling, waviness, wrinkles or the like occurs. The transfer paper 10 is sent to the conveyance path 67, the transfer paper 10 is moistened by the mist imparting device 69 so that the transfer paper 10 can be reprocessed, and then the drying unit 60 reprocesses the transfer paper 10. Here, the amount of moisture provided by the mist providing device 69 is changed according to the state of the transfer paper 10 detected by the state sensor 6. For example, if the transfer paper 10 is curled, the liquid 71 is applied in an amount less than the application amount of the processing liquid 31 normally applied by the liquid application unit 30, and the transfer paper 10 is excessively dried. If undulations or wrinkles occur, a larger amount than the usual amount of the processing liquid 31 is applied. By controlling the amount of moisture applied in this way,
The moisture level before reprocessing can be made uniform.

As described above, according to this embodiment, the drying unit 6
0, the processing state of the transfer paper 10 is detected, and based on the detection result, the reprocessing of the transfer paper 10 by the drying unit 60 can be performed as necessary, so that the processing capacity of the drying unit 60 changes. Or, even when the transfer paper 10 having a different thickness or property from before is processed, the transfer paper 10
The curl and wrinkles of the transfer paper 1 can be suppressed, and the moisture content of the transfer paper 10 is adjusted to be equal to or lower than a predetermined value.
A good reproduction of 0 can be performed.

Further, according to this embodiment, the drying unit 6
0 failed to adjust the moisture content of transfer paper 10 and transfer paper 1
When 0 is too dry and curling, waviness, wrinkles, etc. occur, apply necessary moisture to the transfer paper 10 with the mist applying device 69 before reprocessing by the drying unit 60. After that, it becomes possible to readjust the moisture content without curling, waviness, and wrinkles.

[Embodiment 3] Next, still another embodiment in which the present invention is applied to a transfer paper recycling apparatus will be described. Figure 6
FIG. 1 is a front view showing a schematic configuration of a reproducing device according to an embodiment. The basic structure of this reproducing apparatus is the same as that of the reproducing apparatus of the above-mentioned embodiment of FIG.

The structure of the reproducing apparatus of this embodiment is mainly different from that of the embodiment shown in FIG. 5 in that the liquid applying unit 30 for the transfer paper 10 is replaced by the liquid applying unit 30 provided in the middle of the conveying path 67.
The conveying path 67 is formed so as to return to the upstream side of the liquid applying unit of the liquid applying unit 3 to re-apply the moisture content to the transfer paper 10.
This is the point where 0 is used. In the liquid application unit 30 of the present embodiment, the relay conveyance roller pair 37, the mist applying devices 38a and 38b provided on both sides of the transfer paper 10, and the treatment liquid 31 in the liquid container 32 are transferred to the mist applying devices 38a and 38b. It is composed of a liquid supply pipe 39 for sending. The set of mist applying devices 38a and 38b can be independently driven, and liquid can be applied only to the lower surface of the transfer paper 10 in the drawing or to both surfaces as required. Further, in order to apply the liquid to the transfer paper 10, in addition to the mist applying device, a liquid holding member such as a coating roller and felt,
Jet nozzles, dipping devices, etc. can also be used.

The toner peeling unit 40 of this embodiment is also used.
In the above, a mechanism for contacting and separating the upper and lower heating rollers 45 and 46 is provided, and the pressure holding by the upper and lower heating rollers 45 and 46 can be released if necessary.

In the reproducing apparatus having the above-described structure, for example, as a result of detection by the state sensor 6, the drying unit 60 fails to adjust the moisture content of the transfer paper 10 and the transfer paper 10 is excessively dried. When it is determined that wrinkles or the like have occurred, the transfer paper 10 is sent to the transport path 67, and the liquid applying unit 30 applies the treatment liquid 3 to the transfer paper 10.
The toner peeling unit 40 in a state where the moisture content of 1 is applied and the pressure holding by the upper and lower heating rollers 45 and 46 is released.
And then re-processed in the drying unit 60. Here, the amount of moisture provided by the liquid application unit 30 is changed according to the state of the transfer paper 10 detected by the state sensor 6. For example, as long as the transfer paper 10 is curled, the treatment liquid 31 is applied in an amount smaller than the amount normally applied by the liquid application unit 30, and the transfer paper 10 is excessively dried to cause wavy or wrinkle. If it is generated, it is applied in a larger amount than the usual application amount of the processing liquid 31. Further, particularly when it is determined that the transfer paper 10 has a large waviness, the drying unit 60 may effectively change the set value of the pulling force for the transfer paper 10 at the time of the reprocessing to effectively cause the waviness. Can be suppressed to As described above, also with the reproducing apparatus of this embodiment, the same effect as that of the embodiment of FIG. 5 can be obtained.

In the embodiment shown in FIG. 6, the transfer paper 10
The pressure holding by the upper and lower heating rollers 45 and 46 is released at the time of the reprocessing of the transfer paper 10, but instead of this, a bypass transfer path bypassing the toner peeling unit 40 is provided, and the bypass transfer at the time of the reprocessing of the transfer paper 10. It may be configured to pass through the route.

In each of the embodiments shown in FIGS. 5 and 6,
Although the branching pawl 66 is provided on the exit side of the drying unit 60 to configure the transporting unit to transport the transfer paper 10 to the transporting path 67, the transfer paper 1 once discharged to the paper receiving unit 80.
The transfer means may be configured so that 0 can be transferred to the inlet side of the drying unit 60 or the liquid applying unit 30.

[Embodiment 4] Next, still another embodiment in which the present invention is applied to a transfer paper recycling apparatus will be described. Figure 7
[FIG. 2] is a front view showing a schematic configuration of a reproducing apparatus according to the present embodiment. In FIG. 7, this reproducing apparatus is provided with a paper feeding unit 1, a liquid applying unit 2, a toner peeling unit 3, a drying unit 4, a paper receiving unit 5 and the like, as in the embodiment shown in FIGS. Therefore, the same reference numerals are used for the common members and the like, and the description of the similar configurations and operations is omitted.

The liquid applying unit 2 includes a liquid container 201 filled with a predetermined amount of the processing liquid 20, and the processing liquid 20 in the liquid container 201.
Is provided with a coating roller 207 for coating the toner image surface (the lower surface in the drawing) of the transfer paper 10, a drive unit (not shown) of the coating roller 207, a counter roller 208 that presses the transfer paper 10 and presses the coating roller 207. ing. The coating roller 2
As 07, a material having a liquid retaining property, for example, a hydrophilic porous material, a roller made of sponge, or a roller made of an elastic body such as rubber or a rigid body such as metal can be used.

The toner peeling unit 3 has a peeling belt 311 as a peeling member which is wound around three supporting rollers 308, 309 and 310, a peeling belt 311 between the supporting roller 308 and a toner image on the belt surface. The support roller 3 holds the transfer paper 10 whose surfaces are in contact with each other so as to be conveyed.
08, a pressure contact roller 312 arranged in a pressure contact state, a cleaning device 313 for cleaning the surface of the peeling belt 311, a support roller 308, a heating lamp (not shown) built in the pressure contact roller 312, and the like.

The surface of the peeling belt 311 is as shown in FIG.
Similar to the surface of the offset belt 44, the offset belt 44 is configured to have an adhesive force larger than that of the transfer paper 10 and the toner to at least the softened toner. The cleaning device 313 also includes the wire brush 31 that removes the toner T on the surface of the peeling belt 311.
3a, a cleaning blade 313b for scraping off the toner still remaining and attached on the surface of the peeling belt 311 which has been detoned by the brush, a toner receiver (toner for receiving the toner T removed by the wire brush 313a and the cleaning blade 313b) (toner (Container) 313c.

The drying unit 4 has a heating roller 402 having a heating element 402a (see FIG. 9) made up of three heating heaters as heat sources, and a surface layer made of a liquid-supplying member that comes into pressure contact with the heating roller 402 from below. It is composed of a lower drying roller 404.

In particular, the paper feed unit 1 of the transfer paper recycling apparatus of this embodiment irradiates the back surface (non-toner image forming surface) of the transfer paper 10 before processing with light and detects the reflected light. A photodetector 91 is provided, and the paper receiving unit 5 is provided with a post-processing state detecting means for detecting the state of the post-processing transfer sheet 10, for example, the amount of moisture remaining on the transfer sheet. A reflected light detection device 92 that irradiates the back surface of the transfer paper 10 with light and detects the reflected light is provided. These reflected light detection devices 91 and 92 are composed of light emitting elements 91a and 92a and light receiving elements 91b and 92b, as shown in FIG. Of the light emitted from the light emitting elements 91a and 92a, the light that is not absorbed by the transfer paper 10 is reflected, reaches the light receiving surfaces of the light receiving elements 91b and 92b, and is detected as reflected light. Here, since the light absorption component is different when the transfer paper 10 is dry and when it is wet, when the transfer paper 10 after passing through the drying unit 4 is wet, the light detected by the light receiving element 91b and the light receiving element 91b. The frequency components of the light detected by 92b are different. From the difference in the frequency component of the reflected light, it can be known whether the transfer paper 10 is wet, that is, the amount of moisture remaining on the transfer paper 10. The difference between the frequency components of the reflected light is, for example, that the light receiving elements 91b and 92b are mainly sensitive to the frequency component absorbed by the transfer paper 10 only when the transfer paper 10 is wet,
Whether or not the transfer paper 10 is wet, that is, the amount of moisture remaining on the transfer paper 10 is determined based on the difference in the intensity of the reflected light detected by each of the light receiving elements 91b and 92b. In the detection of the reflected light, instead of mainly detecting the light whose frequency component of the reflected light has a large change, the light of a wider range of frequency components is detected, and the transfer is performed from the change in the overall intensity of the light. It may be configured to determine whether or not the paper 10 is wet, that is, the amount of moisture remaining on the transfer paper 10. The specular reflection component of the reflected light from the transfer paper 10 may be detected, or the irregular reflection component thereof may be detected. Further, if it is possible to detect the change in the characteristic of the reflected light due to the increase or decrease in the moisture content remaining on the transfer paper 10,
Other characteristics of reflected light (phase change, rotation of polarization direction, etc.)
May be detected.

A light emitting diode (LED) or a semiconductor laser (LD) can be used as the light emitting elements 91a and 92a, and a photodiode, a phototransistor or the like can be used as the light receiving elements 91b and 92b. It is not limited to these.

The control device 7 as the control means of the reproducing device of this embodiment is, for example, CPU, ROM, RAM, I.
It can be configured by a microcomputer including an I / O interface and the like. Then, as shown in FIG.
A driver 402b for controlling the heating heater 402a of the heating roller 402 is connected to the control device 7 via a bidirectional communication cable 7a, and data including information on the operating state of the heating heater 402a is transmitted to the control device 7. It is like this. Further, the controller 7 includes a lower drying roller 404.
A motor controller 404a for rotationally driving the motor is also connected.

In the above structure, first, the back surface (non-toner image forming surface) of the unprocessed transfer paper 10 on the paper feeding unit 1 is processed.
The reflected light reflected by is detected by the reflected light detection device 91, and this detection data is sent to the control device 7 and stored in the RAM.
Next, the reflected light reflected by the processed transfer paper 10 discharged from the drying unit 4 onto the paper receiving unit 5 is detected by the reflected light detection device 92, and this detection data is sent to the control device 7. The control device 7 compares the previously stored detection data by the reflected light detection device 91 and the detected data by the reflected light detection device 92, and determines the influence of the liquid, for example, water, in which the frequency component of the reflected light is contained in the transfer paper 10. Determine whether you have received it. Here, even if the transfer paper 10 is sufficiently dried, there is a difference in the reflected light from the transfer paper 10 after the processing due to the influence of the reproduction processing of the transfer paper 10 and the influence of the unevenness of the transfer paper 10. Sometimes. Therefore, in order to avoid misidentification of dryness,
It is preferable that the quality of the transfer paper 10 is determined from the detection result of the reflected light read by the reflected light detection device 91, and the control device 7 predicts the influence of the reproduction processing or the like on the transfer paper 10. In this case, the transfer paper 10 becomes the transfer paper 1 by adding the predicted influence to the detection data by the reflected light detection device 92.
Whether 0 is wet, that is, the amount of moisture remaining on the transfer paper 10 is determined. This makes it possible to prevent the dry state from being erroneously recognized. (Hereinafter, margin)

Next, based on the comparison result of the reflected light data detected by each of the reflected light detecting devices 91 and 92,
When it is determined that the transfer paper 10 has a large amount of residual moisture and is in an undried state, a control signal is sent to the driver 402b to change the setting so as to increase the amount of heat generated by the heater 402a. To prevent the occurrence of. If the amount of heat required is still insufficient, the motor controller 404a
To lower the rotation speed setting of the lower drying roller 404 to slow down the transfer paper conveyance speed. On the other hand, on the contrary, when it is determined that the amount of heat required for drying the transfer paper 10 is excessive and the transfer paper 10 is sufficiently dried, the setting is changed to reduce the heat generation amount or the transfer paper 10 is conveyed. The setting of the rotation speed of the lower drying roller 404 is increased so as to increase the speed. As a result, it is possible to increase the processing speed and save power.

In the reproducing apparatus shown in FIG. 7, the quality of the transfer paper 10 is judged according to the component of the reflected light detected by the reflected light detecting device 91, and the influence of the subsequent reproduction processing is judged based on the judgment result. Based on the prediction result and the frequency component of the reflected light detected by the reflected light detection device 91,
The amount of heat generated in the drying unit 4 and the conveyance speed are controlled to prevent the generation of undried transfer paper. However, incompletely dried transfer paper may be ejected because the prediction of the effect of the above-described recycling process does not match the actual prediction. Therefore, FIG.
The transfer paper 1 discharged onto the paper receiving unit 5 as shown in FIG.
The data input device 8 for the operator to confirm the dry state of 0 and input the result of the determination may be provided in the operation unit, and the data input device 8 may be connected to the control device 7. The data input device 8 may be provided with individual input buttons or the like, but may also be used as a numeric keypad used for other control. In the case of this configuration, the operator inputs that the discharged transfer paper 10 is not dried using the data input device 8 and makes a correction to the setting of the drying processing condition determined based on the above prediction result. By adjusting the drying conditions halfway manually, it is possible to completely prevent the generation of incompletely dried transfer paper.

The drying unit 4 in this embodiment is also used.
Can also be configured as shown in FIG. The drying unit 4 includes a drying belt 413 wound around support rollers 410, 411 and 412, and a lower drying roller 41 that presses the support belts 410 and 411 while sandwiching the belt.
It is equipped with 4,415. The supporting rollers 410, 41
1 has built-in heaters 410a and 411a, respectively. Further, a reflected light detecting device 92 having a light emitting element 92a and a light receiving element 92b for detecting the reflected light from the transfer paper 10 between the lower drying rollers, and the supporting rollers 410, 411, 41.
Guide members 416, 417, and 418 are provided to guide the transfer paper on the outside of the drying belt 413 that contacts the sheet 2. Further, the transfer path of the transfer paper is switched at the exit side of the pressure contact portion between the support roller 410 and the lower drying roller 414, and the transfer path is changed so that the transfer paper 10 is returned to the drying unit or guided to the paper receiving unit 5. 419 is provided. The drying belt 413 is formed by supporting rollers 410 and 411.
Is heated by the heaters 410a and 411a inside,
It is kept at a high temperature.

As shown in FIG. 11, the transport path changing device 419 has a first link member 419b whose one end is rotatably attached to the rotary shaft 419a and one end of which is the first link member 419b. A second link member 419e connected to the other end and having a central portion rotatably attached to the rotating shaft 419d, and a solenoid 419f having a movable shaft connected to the central portion of the first link member 419b. It is configured. In this transport path changing device 419, when the solenoid 419f is controlled based on the control signal from the control device 7 to project the movable shaft, the first link member 419b is moved in the arrow direction, and accordingly, the second link member 419b is moved.
Of the other end of the link member 419e of the contact member comes into contact with the drying belt 413 supported by the support roller 410, that is, a position (solid line) at which the transfer sheet is conveyed to the paper receiving unit 5 side (solid line). It rotates in the direction of the arrow to the position (two-dot chain line) for carrying to the 412 side. When switching the transfer path of the transfer paper in the reverse direction, the solenoid 419f
Is controlled to return the second link member 419e to the position indicated by the solid line.

In the drying unit 4 having the structure shown in FIG. 10, the transfer paper 10 containing the treatment liquid 20 after passing through the toner peeling unit 3 comes into contact with the surface of the drying belt 413 in a high temperature state and is integrated with the drying belt 413. It is then transported and dried. Here, the reflected light detection devices 91 and 92
When it is determined that the transfer paper 10 is in an undried state or when it is determined that more time is required to dry the transfer paper 10 based on the detection result of the conveyance path changing device 41.
The second link member 419e is fixed at the position indicated by the chain double-dashed line by means of 9, and the transfer paper 10 is guided to the supporting roller 412 side by the guide member 416 while being brought into contact with the drying belt 413 and conveyed. After that, the transfer paper 10 is transferred to the guide member 4
It is conveyed while being guided by 17, 418 while being in contact with the drying belt 413, and is continuously dried. On the other hand, when it is determined that the amount of heat required to evaporate the liquid is applied to the transfer paper 10 or when it is determined that the transfer paper 10 is sufficiently dried based on the detection results of the reflected light detection devices 91 and 92, The transfer path changing device 419 fixes the second link member 419e at the position indicated by the solid line, and discharges the transfer paper 10 onto the paper receiving unit 5. Here, since the moisture content of the transfer paper 10 is determined in the drying path based on the detection result of the reflected light detection device 92, the transfer paper 10 can be dried more reliably and efficiently.

In the drying unit 4 shown in FIG.
As shown in FIGS. 12A and 12B, the lengths L ₁ , L ₂ and L ₃ of the linear conveying path between the respective support rollers are set to the transfer paper 10.
It is preferable to set it to be longer than the length 1 in the conveyance direction (the arrow direction in FIG. 12A). In this case, the transfer paper 10
Up to three sheets can be held in the drying unit 4 at a time, and the transfer paper can be efficiently recycled without reducing the efficiency of the processing process other than the drying unit 4.

In the case where the drying unit 4 is constructed as shown in FIG. 12, the drying belt 4 as shown in FIG.
A paper sensor 95 for detecting the presence / absence of each transfer paper 10 on the sheet 13 is provided. Based on the detection result of the paper sensor 95, a conveyance member before the drying unit 4, for example, a pressure contact roller 312 of the toner peeling unit 3 and a conveyance roller. The rotation drive of 314, 315, etc. is controlled via the motor controller 9. In this configuration, when it is determined based on the paper sensor 95 that the drying unit 4 is in the drying processing state of the three transfer papers 10, the motor controller 9 is controlled to convey the conveyance members before the drying unit 4. Of the transfer paper 1
0 should not be sent further into the drying unit 4. When it is determined based on the paper sensor 95 that one of the three transfer papers in the drying unit 4 has been discharged to the paper receiving unit 5, the area on the drying belt 413 where the transfer paper does not exist. Next transfer paper 1 just in time
The transport member before the drying unit 4 is controlled via the motor controller 9 so that 0 is transported. In the case of this configuration, of the transfer paper 10 on the drying belt 413,
The dried paper can be discharged onto the paper receiving unit 5 in order, and the next transfer paper 10 can be conveyed to the vacant area.

In the embodiment shown in FIG. 7, whether or not the transfer paper 10 is wet, that is, the degree of drying is judged based on the comparison result of the detection data of the reflected light detecting devices 91 and 92, and the drying is performed. When the setting of the drying conditions such as the amount of heat generated by the unit 4 and the transport speed is changed, but the relationship between the characteristics of the reflected light from the transfer paper 10 and the degree of wetting of the transfer paper 10 is known with good reproducibility. Whether the transfer paper 10 is wet based on only the detection data of the reflected light detection device 92 in the paper receiving unit 5 or the drying unit 4 without providing the reflected light detection device 91 in the paper feeding unit 1, That is, it may be configured to judge the degree of drying.

[0102]

According to the first aspect of the present invention, even if the processing capacity of the adhesion stabilizing means is changed, the predetermined processing capacity is restored from the next reproduction processing of the image holding sheet and proper adhesion is achieved. Since the property stabilizing treatment can be performed, the occurrence of curling, wrinkling, waviness, etc. can be suppressed, and the moisture content can be properly adjusted, and the image holding sheet can be satisfactorily reproduced. Further, even when performing a series of reproduction processing of a plurality of image holding sheets having different thicknesses and properties from those of the image holding sheets up to that point, from the second and subsequent image holding sheets of the series of reproduction processing, Since proper adhesion stabilization processing can be performed, curling, wrinkles, waviness, etc. can be suppressed, and moisture can be properly adjusted to perform good reproduction of the image holding sheet. it can.

According to the second aspect of the present invention, the moisture content of the image holding sheet is insufficiently removed due to a change in the processing capacity of the adhesion stabilizing means or the supply of an image holding sheet having a different thickness or property. Even if the image holding sheet is lost, the image stabilizing sheet can be reprocessed by the adhesion stabilizing means, so that the moisture content can be properly adjusted and the image holding sheet can be satisfactorily regenerated. .

In particular, according to the third aspect of the invention, the image holding sheet is curled, wavy, wrinkled or the like due to a change in the processing ability of the adhesion stabilizing means or supply of an image holding sheet having a different thickness or property. Even if such a problem occurs, the image holding sheet can be reprocessed by setting the processing conditions by the adhesion stabilizing means to the optimum conditions, so that the image holding sheet free from curling, waviness, wrinkles, etc. Good reproduction can be performed.

In particular, according to the invention of claim 4, the image holding sheet fails to be processed by the adhesion stabilizing means and is excessively dried, so that the image holding sheet is curled, wavy, wrinkled or the like. Even if occurs, since the moisture is applied to the image holding sheet by the moisture applying means in the conveying path of the conveying means, the adhesion stabilizing means performs the reprocessing, so that the curling or waviness is generated. It is possible to suppress the occurrence of wrinkles and the like, and it is possible to properly reproduce the image holding sheet by appropriately adjusting the moisture content.

According to the fifth aspect of the present invention, the image holding sheet fails to be processed by the adhesion stabilizing means and is excessively dried, resulting in defects such as curling, waviness and wrinkles. Even in the case where the destabilizing liquid is applied to the image-holding sheet by the destabilizing liquid applying unit so that the sheet can be reprocessed, the adhesive stabilizing unit reprocesses it. It is possible to suppress the occurrence of curls, wrinkles, waviness, and the like, and it is possible to properly reproduce the image holding sheet by appropriately adjusting the moisture content.

Particularly, according to the invention of claim 6, the adhesion amount is controlled by controlling the application amount of the moisture content by the moisture application means or the destabilizing liquid application means according to the state of the image holding sheet. Re-processing by the stabilizing means is possible, and the moisture level of the image-holding sheet before re-processing can be made uniform, so that stable moisture adjustment without curling, waviness, or wrinkles is possible. Is possible.

[Brief description of drawings]

FIG. 1 is a front view showing a schematic configuration of a transfer paper recycling apparatus to which the present invention is applicable.

FIG. 2 is a front view showing a schematic configuration of a drying unit of the reproducing apparatus.

FIG. 3 is a block diagram of a main part of an electric component section of the reproducing apparatus.

4A to 4C are explanatory views of a drying unit according to another configuration example.

FIG. 5 is a front view showing a schematic configuration of a transfer paper recycling apparatus according to another embodiment.

FIG. 6 is a front view showing a schematic configuration of a transfer paper recycling apparatus according to still another embodiment.

FIG. 7 is a front view showing a schematic configuration of a transfer paper recycling apparatus according to still another embodiment.

FIG. 8 is a front view showing a schematic configuration of a reflected light detection device of the reproducing apparatus.

FIG. 9 is a block diagram of a main part of an electric component section of the reproducing apparatus.

FIG. 10 is a front view showing a schematic configuration of a drying unit according to another configuration example of the reproducing apparatus.

FIG. 11 is a front view showing a schematic configuration of a transport path changing device of the drying unit.

FIG. 12A and FIG. 12B are explanatory views of dimensions of a linear transport path in the drying unit.

FIG. 13 is a block diagram of a main part of an electrical component section according to another configuration example of the reproducing apparatus.

[Explanation of symbols]

 2 Liquid applying unit 3 Toner peeling unit 4 Drying unit 6 State sensor 7 Control device 10 Transfer paper 20 Processing liquid 30 Liquid applying unit 31 Processing liquid 38 Mist applying device 40 Toner peeling unit 60 Drying unit 66 Branching claw 67 Conveying path 69 Mist applying Device 401 Heating lamp 402 Upper drying roller 404 Lower drying roller 407 Pressure lever 408 Spring 409 Cam ring

Claims (6)

[Claims] 1. A destabilizing liquid for destabilizing the adhesion between the image-forming substance and the surface is applied to an image-holding sheet having a fibrous surface on which the image-forming substance is fixed. A destabilizing liquid applying unit, an image forming substance removing unit that removes an image forming substance from the image holding sheet to which the destabilizing liquid is applied, and an image forming substance removed inside the image holding sheet. In a reproducing device for an image holding sheet, which comprises an adhesion stabilizing means for adjusting the moisture content of the destabilizing liquid to stabilize the adhesion to the image forming substance on the surface, the adhesion stabilizing means A state detecting means for detecting the state of the processed image holding sheet and a setting changing means for changing the setting of the processing condition of the adhesion stabilizing means based on the detection result of the state detecting means are provided. Characteristic image-holding sheet reproducing device. 2. A destabilizing liquid for destabilizing the adhesion between the image-forming substance and the surface is applied to an image-holding sheet having a fibrous surface on which the image-forming substance is fixed. A destabilizing liquid applying unit, an image forming substance removing unit that removes an image forming substance from the image holding sheet to which the destabilizing liquid is applied, and an image forming substance-removed image holding sheet In a reproducing device for an image-holding sheet, which comprises an adhesion stabilizing means for adjusting the moisture content of the destabilizing liquid to stabilize the adhesion of the surface to the image forming substance, the adhesion stabilizing means A state detecting means for detecting the state of the processed image holding sheet, a conveying means for sending the image holding sheet whose state has been detected by the state detecting means to the adhesion stabilizing means again, and a state detecting means of the state detecting means. Based on the detection result, it controls the operation and non-operation of the conveying means. Image holding sheet of the playback apparatus characterized by comprising a control means. 3. Based on the detection result of the state detecting means,
3. The image holding sheet reproducing apparatus according to claim 2, further comprising setting changing means for changing the processing condition setting at the time of reprocessing by the adhesion stabilizing means. 4. A moisture content imparting means for imparting moisture content to the image holding sheet in the transport path of the transport means, and the operation or failure of the moisture content imparting means based on the detection result of the state detecting means. An image holding sheet reproducing apparatus according to claim 2 or 3, further comprising control means for controlling operation. 5. A destabilizing liquid for destabilizing the adhesion between the image forming substance and the surface is applied to an image holding sheet having the image forming substance fixed on the fibrous surface. A destabilizing liquid applying unit, an image forming substance removing unit that removes an image forming substance from the image holding sheet to which the destabilizing liquid is applied, and an image forming substance removed inside the image holding sheet. In a reproducing device for an image holding sheet, which comprises an adhesion stabilizing means for adjusting the moisture content of the destabilizing liquid to stabilize the adhesion to the image forming substance on the surface, the adhesion stabilizing means State detection means for detecting the state of the processed image holding sheet, and conveyance for sending the image holding sheet whose state has been detected by the state detection means to the destabilizing liquid applying means and the adhesion stabilizing means again Means and the carrier based on the detection result of the state detection means. And a setting changing unit for changing the setting of the processing condition at the time of reprocessing by the adhesion stabilizing unit based on the detection result of the state detecting unit. Characteristic image-holding sheet reproducing device. 6. Based on the detection result of the state detecting means,
The amount of moisture applied to the image carrier sheet by the moisture imparting means, or the amount of destabilizing liquid imparted to the image holding sheet by the destabilizing liquid imparting means is controlled. 4 or 5 image holding sheet reproducing apparatus.