JPH0895444A - Device for removing image forming substance from image holding body - Google Patents

Abstract

PURPOSE: To provide a toner removing device having which can give a mark for identification of the device which can be recognized only when it is consciously viewed and which can be surely erased by next toner removing processing. CONSTITUTION: In the toner removing device, toner is removed from transfer paper 1 by applying processing solution to the transfer paper 1 so that the sticking state of the toner to the transfer paper 1 becomes unstable and performing such a processing that the toner on the transfer paper 1 is brought into contact with a peeling belt and separated therefrom, and it is provided with a rugged identification mark forming means forming the rugged identification mark 1a on the surface of the transfer paper 1. A heating drum 12 having a surface where a projecting part or a recessed part 12b is formed or a belt for pressing paper, which is installed in a finishing unit, is used as the identification mark forming means. It is preferable to include information specifying the toner removing device in the identification mark 1a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image-forming substance removing apparatus for removing an image-forming substance forming an image from an image-holding member on which an image is formed by an image-forming apparatus such as a copying machine, a facsimile machine, a printer or a printing machine. The present invention relates to an apparatus, and more particularly, to an image forming substance removing device provided with an identification mark forming means for forming an identification mark on an image carrier from which an image forming substance has been removed.

[0002]

2. Description of the Related Art Conventionally, there are known various image forming substance removing methods and devices for removing an image forming substance such as toner from a sheet as a recorded image carrier. For example, as one using a solvent, JP-A-1-10
In Japanese Patent No. 1576, a sheet on which toner is attached is immersed in a soluble solvent of a toner resin and ultrasonic vibration is applied to the sheet.
A method for removing an image-forming substance is disclosed in which the toner dissolved in a solvent is released from the paper surface. In addition, JP-A-4-3003
In Japanese Patent Publication No. 95, a solvent is attached to a printed portion of waste paper by a method such as dipping, spraying or coating to dissolve the toner,
An image forming substance removing method is disclosed in which the dissolved toner is removed by a method such as washing, air suction, contact with an adsorbent, mechanical peeling or electrostatic adsorption.

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.

Further, the present applicant has previously proposed that the recorded image carrier has water as a destabilizing solution and 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 an aqueous solution containing a surfactant and a water-soluble polymer is held, and a peeling member is interposed to remove the image-forming substance. A method for removing an image-forming substance is proposed, in which the member is heated or pressure-bonded to a member and peeled from the image carrier (for example, Japanese Patent Application No. 4-255916).
No., Japanese Patent Application No. 5-239075). According to this
Only the image-forming substance can be removed without relatively damaging the paper quality of the image carrier.

By the way, in the above-mentioned image forming substance removing apparatus, it is stamped with a red stamp, a killer whale (trade name) stamp, etc., a signature is added with a felt-tip pen, a ballpoint pen, a pencil, a red pencil, etc. When processing the image carrier in which the formed images are mixed, the image forming substance that constitutes the image by the imprinting, adding, printing, etc. remains,
In some cases, only the image forming substance such as toner forming the other images may be removed. In this way, when an unremoved image such as a seal imprint remains on the image carrier, the document is altered or forged by copying another contract document to the image carrier, and the unremoved image is removed. May be deliberately abused.

Therefore, in order to prevent abuse of unremoved images such as imprints and signatures, the applicant of the present invention can determine whether or not the image carrier has been subjected to the image-forming substance removal treatment. , Proposes a method of applying an identification mark to an image holding member which has been subjected to an image forming substance removal process, and discloses a method of using a printing device such as an inkjet printer as means for applying the identification mark (for example, Japanese Patent Application Flat 5-35
1908). In particular, when a printing device such as an inkjet printer is used, the identification mark applied to the image carrier can be changed every time, and thus the identification mark can be easily provided with information on the number of times the image forming substance is removed and reused. Can be included in.

[0007]

However, when an identification mark is provided by a printing device such as the ink jet printer, the identification mark is clearly visible during normal reuse, and the image formed during reuse is not clearly visible. There is a risk that the image quality will be disturbed and the image quality will be degraded.

Further, when the image-forming substance constituting the identification mark is removable by the above-mentioned image-forming substance removing device, the old identification mark is erased every time the image-forming substance is removed and a new identification mark is always added. Although it can be formed, the mark of the old identification mark may remain after the image forming substance removing process is repeated many times, and the latest identification mark may not be accurately recognized.

The present invention has been made in view of the above problems, and a first object thereof is to have an identification function that can be recognized only when consciously looking, and to disturb an image formed at the time of reuse. An object of the present invention is to provide an image-forming substance removing device capable of forming an identification mark that does not become an object, and a second purpose of the apparatus is to reliably perform the following image-forming substance removing process in addition to the first purpose. An object of the present invention is to provide an image forming substance removing device capable of forming an erasable identification mark.

[0010]

In order to achieve the first object, the invention of claim 1 removes the image forming substance from an image carrier having the image forming substance stably attached to the surface thereof. The apparatus for removing an image-forming substance from an image carrier is characterized in that an identification mark forming means for forming an identification mark by unevenness is provided on the surface of the image carrier.

In order to achieve the above second object,
According to a second aspect of the present invention, a destabilizing liquid that makes an adhesion state of an image holding member having a liquid absorbing property at least on a surface thereof and an image forming substance stably attached to the image holding member unstable. The destabilizing liquid applying means applied to the image carrier and the image forming substance on the image carrier and the peeling member are brought into contact with each other and then separated from each other, thereby peeling the image forming substance from the image carrier. The image forming substance removing device for an image carrier according to claim 1, further comprising a peeling means for removing by removing the identification mark forming means for forming an identification mark due to unevenness on the surface of the liquid absorbing image carrier. It is characterized by that.

In particular, the invention of claim 3 heats and dries the image carrier from which the image forming substance has been peeled and removed, and finishes the image carrier by pressing a finishing member against the image carrier. The apparatus for removing an image-forming substance from an image carrier according to claim 2, further comprising a finishing means, wherein the identification mark forming means is provided in the finishing means.

In particular, the invention of claim 4 is the apparatus for removing an image-forming substance from an image carrier according to claim 3, wherein the belt member is provided as the finishing member, and the surface of the belt member which is pressed against the image carrier is A convex portion or a concave portion corresponding to the identification mark is formed, and the belt member is used as the identification mark forming means.

In particular, the invention of claim 5 is the apparatus for removing an image-forming substance from an image carrier of claim 4, wherein the convex portion or the concave portion is made of the same material as that of the belt member. It is a thing.

In particular, the invention of claim 6 is the apparatus for removing an image-forming substance from an image carrier according to claim 3, which comprises a drum member as the finishing member, wherein the surface of the drum member which is in pressure contact with the image carrier is A convex portion or a concave portion corresponding to the identification mark is formed, and the drum member is used as the identification mark forming means.

In particular, the invention according to claim 7 is the image forming substance removing device from the image holding member according to claim 1, wherein the identification mark formed on the image holding member specifies the device which has performed the image forming substance removing process. It is characterized by being a mark including information that can be obtained.

[0017]

According to the first aspect of the present invention, the identification mark forming means forms an identification mark on the surface of the image carrier, and the identification mark determines whether or not the image carrier has been subjected to the image forming substance removing process. Be able to judge when reusing.
Since the identification mark formed on the image carrier is formed by making the surface of the image carrier uneven, it is hardly visible during normal use, and is visible only when the user intentionally looks at it.

In the second aspect of the invention, when the destabilizing liquid is applied to the image carrier by the destabilizing liquid applying means during the next image forming substance removing process, the destabilizing liquid retains the image. While penetrating into the liquid-absorptive part of the body, the image carrier swells and its surface becomes substantially flat, and the identification mark due to the unevenness formed on the surface of the image carrier disappears.

According to the third aspect of the present invention, the finishing means for finishing the image holding body by heating and drying the image holding body from which the image-forming substance has been peeled and removed, and pressing the finishing member against the image holding body. By the identification mark forming means provided inside, the finishing member is brought into pressure contact with the liquid-absorptive portion of the image carrier containing the destabilizing liquid and swollen, and the surface of the image carrier is made uneven during this pressure contact. It can be dried.

In a fourth aspect of the invention, a belt member as a finishing member that is brought into pressure contact with a swelled image holding member containing a destabilizing liquid in a liquid absorbing portion of the image holding member has unevenness due to embroidery or the like. A convex portion or a concave portion as a mold corresponding to the identification mark is formed, and the image holding member is dried while pressing the convex portion or the concave portion of the belt member to form the identification mark based on the concave and convex portions.

In the invention of claim 5, the convex portion or the concave portion of the belt member is formed of the same material as that of the belt member, so that the convex portion or the concave portion and the other portion are the same even when the belt member is stretched. As it stretches, wrinkles are less likely to occur.

In a sixth aspect of the invention, the drum member as a finishing member, which is brought into pressure contact with the swelled image holding member containing the destabilizing liquid in the liquid absorbing portion of the image holding member, has unevenness due to etching or the like. A convex portion or a concave portion as a mold corresponding to the identification mark is formed, and the image holding body is dried while pressing the convex portion or the concave portion of the drum member under pressure to form the identification mark based on the irregularity.

In the invention of claim 7, since the identification mark formed on the image carrier contains information that can identify the apparatus that has performed the image forming substance removing process, the imprint that cannot be removed from the image carrier is used. If it is found that the image carrier has been forged or altered, it is possible to retrospectively investigate and identify the image forming substance removing device that processed the image carrier.

[0024]

EXAMPLES Hereinafter, the present invention will be described as an image holding method for removing electrophotographic toner (hereinafter referred to as toner) as an image forming substance from a transfer paper as an image holding member on which an image is formed by a transfer type electrophotographic copying machine. An embodiment applied to a device for removing an image forming substance from a body (hereinafter referred to as a toner removing device) will be described.

FIG. 2 is a schematic diagram showing an example of a toner removing device to which the present invention can be applied. This toner removing device is provided with a transfer sheet 1 sent from a sheet feeding unit (not shown).
A liquid applying unit for applying liquid to the toner, a toner peeling unit as a peeling unit for peeling toner from the transfer paper 1 to which the liquid is applied, and the transfer paper 1 from which the toner has been dried to make the surface flat. And a finishing unit as finishing means for finishing.

The above-mentioned liquid applying unit applies to the transfer paper 1 the treatment liquid 2 as a destabilizing liquid such as water or an aqueous solution containing a surfactant in order to improve the permeability to the transfer paper 1. is there. In the illustrated example, a liquid container 3 for containing a liquid
And a liquid supply roller 4 which is provided so as to be partially submerged in the liquid in the liquid container 3 and which pumps the liquid by rotation and applies the liquid to the toner image surface of the transfer paper 1, with the paper feed path sandwiched therebetween. The liquid supply / conveyance roller 5 is provided so as to face the liquid roller 4. As the liquid supply roller 4, a material having a liquid retaining property, for example, a roller made of a hydrophilic porous material, sponge, or a roller made of an elastic body such as rubber or a rigid body such as metal can be used. (Hereafter, margin)

In the toner peeling unit, the peeling belt 9 as a peeling member is wound around the heating block 8 having the supporting rollers 6 and 7 and the heating lamp 8a built therein, and is pressed against the heating block 8 with the peeling belt 9 interposed therebetween. Heating roller 10 having a built-in heating lamp 10a, and a rotating brush roller 11 for removing toner from the surface of the peeling belt 9
It has and. At least the surface of the peeling belt 9 is formed of a material having an adhesive force to the softened toner that is larger than the adhesive force between the surface of the transfer paper 1 and the toner. For example, the belt itself is made of a metal material such as an aluminum-based material, a copper-based material, a nickel-based material, or a polymer-based material such as polyethylene terephthalate (PET) in which titanium oxide is dispersed. The heating block 8 and the heating roller 10 are for softening the toner on the transfer paper 1. The heat of the heating block 8 and the heating roller 10 is transferred to the transfer paper 1 via the peeling belt 9 and the transfer paper 1. By being transferred to the upper toner, the toner on the transfer paper 1 is heated and softened.

In addition, a bent portion having a predetermined radius of curvature is formed in the heating block 8 downstream of the pressure contact portion with the heating roller 10 in the belt moving direction in order to rapidly change the moving direction of the peeling belt 9 downward. Then, the curvature of the transfer paper 1 from the peeling belt 9 is separated at this bent portion.

The finishing unit is, for example, one paper weight unit.
Transfer paper 1 containing 0% to 100% of processing liquid 2
Is for drying the transfer paper 1 so that the amount of the liquid held therein is 10% or less, a drum member (hereinafter, referred to as a heating drum) 12 as a finishing member having a built-in heating lamp 12a and made of, for example, aluminum, and a plurality of supports. A belt member (hereinafter referred to as a paper pressing belt) 14 as a finishing member that is wound around a roller 13 and moves endlessly while being wound around the peripheral surface of the heating drum 12 at a constant angle. In the illustrated example, one support roller 13 also serves as a tension roller. As a material of the paper pressing belt 14, a material having heat resistance, air permeability and water supply property, for example, cloth such as canvas cloth, cotton cloth, Tetoron cloth, etc. can be used. By bringing the paper pressing belt 14 having such water absorption into contact with the transfer paper 1, in addition to drying by heating from the heating lamp 12a inside the heating drum 12, the transfer paper 1 is treated on the paper pressing belt 14. It is also possible to exert a drying acceleration function by attaching the liquid 2.

Further, the heating drum 12 is also used as an identification mark forming means for forming an identification mark on the transfer paper 1 by the unevenness. As shown in FIG. 1A and FIG. 1B which is an enlarged view of a portion surrounded by a broken line in FIG. 1, the surface of the heating drum 12 rotating in the arrow direction is transferred onto the surface of the transfer paper 1 during the finishing process. A concave portion 12b is formed on the surface for forming an identification mark (“AZ” in the example in the figure) formed by unevenness. Here, the hatched portion in FIG. 1B is the bottom surface of the recess. This concave portion 12b is formed when the drum is manufactured.
It can be formed by irradiating the surface of the heating drum 12 with laser light from a laser light source such as a carbon dioxide gas laser. Although the recess 12b can be formed by etching or the like, it is advantageous to use laser irradiation because the recess composed of various characters and symbols can be easily formed.

Further, the concave portion on the surface of the heating drum 12 for forming the identification mark is formed on the entire peripheral surface of the drum so that the identification mark can be surely formed on the transfer sheet 1 even when the transfer sheets 1 of different sizes are processed. It is preferably dispersed and formed.

In the toner removing device having the above structure, the transfer paper 1 sent from the paper feed unit (not shown) is uniformly supplied to the toner image surface by the liquid supply roller 4, and sent to the toner peeling unit. In this toner peeling unit, the toner adhered to the transfer paper 1 is softened by heating from the heating block 8 and the heating roller 10 and adheres to the surface of the peeling belt 9. When the transfer paper 1 and the peeling belt 9 are separated from each other at the bent portion of the heating block 8, the toner adhering to the surface of the peeling belt 9 is separated from the transfer paper 1, whereby the toner is removed from the transfer paper 1. The transfer paper 1 from which the toner has been removed is dried by the finishing unit and discharged to a paper receiving unit (not shown). Thus, the liquid is supplied to the transfer paper 1 to which the toner adheres, and the toner is peeled off in a state where the liquid permeates the interface of the transfer paper 1 with the toner, so that the toner can be removed without damaging the paper fiber.

Further, in the finishing unit of the toner removing device, the transfer paper 1 from which the toner is removed is heated by the heating drum 12.
It is held between the paper pressing belt 14 and the paper pressing belt 14 and heated while being conveyed. At the time of this conveyance, the transfer paper 1 is pressed against the surface of the heating drum 12 and the surface of the transfer paper 1 is finished flat. However, since the pressure contact force is small in the recess 12b of the heating drum 12, the transfer paper corresponding to the recess is formed. 1 the surface becomes convex,
As shown in FIG. 1C, a convex identification mark 1a is formed on the transfer paper 1 conveyed in the arrow direction. Here, the hatched portion in FIG. 1C is the surface of the convex identification mark 1a.

As described above, according to this embodiment, since the identification mark is formed on the transfer paper 1 from which the toner has been removed by the finishing unit, it is determined whether or not the transfer paper used for image formation has the toner removed. be able to. Further, the identification mark formed by the finishing unit has an uneven surface on the transfer paper 1 and is almost invisible during normal reuse, and has an identification function of being visible only when intentionally looking. Therefore, the quality of an image formed during reuse does not deteriorate because it interferes with an image formed. Further, when the treatment liquid 2 is applied during the next toner removal treatment, the treatment liquid 2 permeates the transfer paper 1 and the transfer paper 1 swells so that the entire surface thereof becomes substantially flat and the surface of the transfer paper 1 Since the identification mark due to the unevenness formed on the part disappears, the latest identification mark can be accurately recognized without the old and new identification marks being mixed.

Further, since the transfer paper 1 is swollen with the treatment liquid 2 in a swollen state, the heating drum 12 having the above-mentioned recesses is pressed and dried to form an identification mark due to unevenness. It is possible to form the identification mark by making the surface of the transfer paper 1 uneven with a very weak force as compared with the case where the surface is made uneven after being dried.

Although the concave portion 12b is formed on the surface of the heating drum 12 in the above embodiment, a convex portion may be formed instead of the concave portion and a concave identification mark may be formed on the transfer paper 1. . Further, instead of forming the convex portion or the concave portion on the surface of the heating drum 12, the convex portion or the concave portion may be formed on the surface of the paper pressing belt 14 in contact with the transfer paper 1 by embroidery or the like. In this case, the convex portion or the concave portion is made of the same material as the paper pressing belt 14, for example, the canvas material mentioned as the material of the belt 14 so as not to generate wrinkles.
It is preferably formed from a raw material of cloth such as cotton or Tetoron.

Further, in the above embodiment, the identification mark is formed on the transfer sheet 1 in the finishing unit, but an identification mark forming device may be provided after the finishing unit. For example,
A pressure roller pair is provided between the finishing unit and a paper receiving unit (not shown), and a convex portion or a concave portion corresponding to the identification mark is formed on the surface of one roller of the pressure roller pair.
It is also possible to convey the dried transfer paper 1 while sandwiching it by the pair of pressure rollers to form an identification mark by unevenness on the surface of the transfer paper 1.

When the transfer paper 1 from which toner has been removed is reused and misused for counterfeiting or the like, the above identification mark is provided so that it can be retrospectively investigated to identify which toner removal device has processed the toner. It is preferable to include information that can identify the device that has performed the toner removing process, such as a serial number for the toner removing device and a serial number for manufacturing the heating drum 12.

In the above embodiment, the peeling belt 9 is used as the peeling member of the toner peeling unit, but instead of the supporting rollers 6 and 7, the heating block 8, the peeling belt 9 and the like, heating means such as a heating lamp is used. A peeling roller as a roller-like peeling member, which is made of a material having a built-in toner and having an adhesive force larger than that of the transfer paper 1 and the toner with respect to the toner whose surface is at least softened. May be disposed so as to face the heating roller 10. In this case, the transfer paper 1 is conveyed while being sandwiched between the heating roller 10 and the peeling roller, passes through the gripping portion, and then, when the transfer paper 1 separates from the surface of the peeling roller, the transfer paper 1 remains on the transfer paper 1. The toner is peeled off and removed.

In the above embodiment, the paper pressing belt 14 and the heating drum 12 with the built-in heating lamp 12a wound around the belt 14 at a constant angle are used as the finishing member of the finishing unit. hand,
A pair of drying rollers each having a heating unit such as a heating lamp may be provided inside, and the transfer sheet 1 conveyed from the toner peeling unit may be dried through the pair of drying rollers.

Further, in the above embodiment, the present invention is applied to the transfer paper 1 on which an image is formed by the transfer type electrophotographic copying machine, but it may be applied to other image forming apparatuses such as a facsimile, a printer and a printing machine. It can also be applied to an image carrier such as recording paper used. Further, the present invention is not limited to an image carrier having a fibrous structure, but can be applied to an image carrier having at least a surface portion having a liquid supplying property and capable of forming an image. The image carrier to which the present invention is applicable may be, for example, a laminate in which the surface layer of a base sheet such as a plastic layer is a material layer such as paper.

Further, in the above embodiment, the treatment liquid 2 is applied to the transfer paper 1, and then the toner on the transfer paper 1 is peeled off and removed by the peeling belt 9. A toner removing device that removes toner without applying it, or an image forming substance removing device such as a toner removing device that scrapes off the toner on the transfer paper 1 to remove the toner without using the peeling belt 9 or the peeling roller. Even if an identification mark is formed by making the surface of the transfer paper treated with such an image-forming substance removing device uneven, the identification mark is hardly visible during normal reuse, and is intentional. Since it has a discriminating function that can be visually recognized only when the user tries to see it, the image quality is not deteriorated by being an obstacle to the image formed at the time of reuse. Further, the present invention is not limited to the case where the image forming substance is the toner, and can be applied to the case where other image forming substances such as ink are removed.

[0043]

According to the first aspect of the present invention, the identification mark formed on the surface of the image carrier by the identification mark forming means has the surface of the image carrier made uneven, and is almost free during normal reuse. Since it has an identification function that is not visually recognizable and can be visually recognized only when the user intentionally looks at it, there is an effect that the image quality is not deteriorated by being an obstacle to the image formed at the time of reuse.

In particular, according to the second aspect of the present invention, when the destabilizing liquid is applied to the image carrier by the destabilizing liquid applying means during the next image forming substance removing process, the destabilizing liquid forms an image. Since the image carrier swells while penetrating into the liquid-absorbing part of the carrier and the entire surface thereof becomes substantially flat, the identification mark due to the unevenness formed on the surface of the image carrier disappears. There is an effect that the latest identification mark can be accurately recognized without the identification marks being mixed.

Particularly, according to the third aspect of the present invention, the finishing member is formed in a state where the liquid absorbing portion of the image carrier is swollen with the destabilizing liquid by the identification mark forming means provided in the finishing means. Since the surface of the image carrier is dried while making the surface of the image carrier uneven at the time of this pressure contact, the surface of the image carrier is made with a very weak force compared to the case where the surface of the image carrier is made uneven after drying the image carrier. There is an effect that the identification mark can be formed by making it uneven.

Particularly, according to the invention of claim 4, the belt member as the finishing member of the finishing means of the image holding member is provided with the convex portion or the concave portion as the mold corresponding to the identification mark by the concave and convex by the embroidery or the like. Thus, there is an effect that the identification mark forming means can be easily obtained as compared with the case where the identification mark forming means is provided independently of the finishing means. In addition, by forming the convex portions or the concave portions at a plurality of positions on the surface of the belt member, there is an effect that they can be easily applied to image carriers of different sizes.

In particular, according to the fifth aspect of the invention, the convex portion or the concave portion of the belt member is formed of the same material as that of the belt member, so that the convex portion or the concave portion and other portions can be formed even when the belt member is stretched. Since and extend similarly, there is an effect that wrinkles are less likely to occur as compared with the case where different materials are used for the convex portion or the concave portion.

In particular, according to the invention of claim 6, the drum member as the finishing member of the finishing means of the image holding member is formed with a convex portion or a concave portion as a mold corresponding to the identification mark due to the concave and convex portions by etching or the like. Thus, there is an effect that the identification mark forming means can be easily obtained as compared with the case where the identification mark forming means is provided independently of the finishing means. Also,
By forming the convex portions or the concave portions at a plurality of positions on the surface of the drum member, there is an effect that they can be easily applied to image holding bodies of different sizes.

In particular, according to the invention of claim 7, since the identification mark formed on the image carrier contains information that can identify the apparatus that has performed the image forming substance removing process, the imprint or the like that could not be removed from the image carrier. When it is found that the image forming material has been counterfeited or altered by utilizing the above method, there is an effect that it is possible to retrospectively investigate and easily specify the image forming substance removing device that processed the image holding member.

[Brief description of drawings]

FIG. 1A is an explanatory diagram of forming an identification mark on a transfer sheet by a heating drum of a toner removing device according to an embodiment. (B)
FIG. 4 is a partially enlarged view of a recess for forming an identification mark on the heating drum. (C) is a partially enlarged view of the identification mark on the transfer paper.

FIG. 2 is a schematic configuration diagram of the toner removing device.

[Explanation of symbols]

 1 Transfer Paper 1a Identification Mark 12 Heating Drum 12a Heating Lamp 12b Recess for Forming Identification Mark 14 Paper Pressing Belt

Claims (7)

[Claims] 1. An apparatus for removing an image-forming substance from an image carrier, which removes the image-forming substance from an image-bearing member having a surface on which the image-forming substance is stably attached. An apparatus for removing an image-forming substance from an image carrier, characterized in that an identification mark forming means for forming a mark is provided. 2. A destabilizing liquid for destabilizing an adhesion state of an image carrier having at least a surface absorbing liquid and an image forming substance stably adhering to the image carrier. The destabilizing liquid applying means to be applied to the holding member and the image forming substance on the image holding member and the peeling member are brought into contact with each other and then separated from each other, thereby peeling and removing the image forming substance from the image holding member. The apparatus for removing an image-forming substance from an image carrier according to claim 1, further comprising a peeling means, wherein an identification mark forming means for forming an identification mark by unevenness is provided on the surface of the image absorbing body having the liquid absorbing property. A device for removing an image forming substance from an image carrier. 3. A finishing means for finishing the image holding member by heating and drying the image holding member from which the image-forming substance has been peeled and removed, and pressing a finishing member against the image holding member. 2. The apparatus for removing an image-forming substance from an image carrier according to item 2, wherein the identification mark forming means is provided in the finishing means. 4. The image forming substance removing device from an image carrier according to claim 3, further comprising a belt member as the finishing member, wherein projections corresponding to the identification marks are formed on a surface of the belt member which is pressed against the image carrier. A device for removing an image-forming substance from an image carrier, characterized in that the belt member is used as the identification mark forming means. 5. The apparatus for removing an image forming substance from an image carrier according to claim 4, wherein the convex portion or the concave portion is formed of the same material as that of the belt member. 6. The apparatus for removing an image-forming substance from an image carrier according to claim 3, wherein a drum member is provided as the finishing member, and a projection corresponding to the identification mark is formed on a surface of the drum member which is pressed against the image carrier. A device for removing an image forming substance from an image carrier, characterized in that the drum member is used as the identification mark forming means by forming a part or a recess. 7. The image formation from the image carrier according to claim 1, wherein the identification mark formed on the image carrier is a mark including information capable of specifying the apparatus that has performed the image forming substance removing process. Material removal device.