JP3318102B2 - Apparatus for removing image forming substance from image carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image holding apparatus for removing an image forming substance stably adhered to an image holding body from an image holding body by an image forming apparatus such as a copying machine, a facsimile, and a printer. it relates the image forming substance removal SaSo location from the body.

[0002]

2. Description of the Related Art Conventionally, various methods and apparatuses for removing an image forming substance such as toner from a sheet as a recorded image holding member are known. For example, a method using a solvent is disclosed in
No. 1576 discloses that a sheet with toner attached thereto is immersed in a soluble solvent of a toner resin, and ultrasonic vibration is applied thereto.
There is disclosed a method for removing an image forming substance that releases toner dissolved in a solvent from the paper surface. Also, JP-A-4-3003
No. 95 discloses that a solvent is immersed in the printed portion of waste paper, adhered by a method such as spraying or coating to dissolve the toner,
There is disclosed an image forming substance removing method in which a dissolved toner is removed by a method such as washing, air suction, adsorbent contact, mechanical peeling, or electrostatic adsorption.

On the other hand, as a method without using a solvent, for example, Japanese Patent Application Laid-Open No. 2-55195 discloses a heat-meltable ink or an electrophotographic method in which a release agent is coated on a support and printed on an electrophotographic or thermal transfer system. Toner, the ink peeled body is overlaid on the printed body and passed between the heating roller and the pressure roller,
There is disclosed an image forming substance removing method in which the ink peeling member is peeled off after cooling and adhered to the ink peeling member to be removed. Japanese Patent Application Laid-Open No. 4-64472 discloses at least an endless sheet having a hot-melt resin on the surface, a heat roller and a cooling roller for supporting and rotating the endless sheet, and a paper (erasable paper) with a release treatment on the surface. There is disclosed an eraser comprising a pressing roller for pressing the resin onto a softened or molten hot-melt resin, and a drive unit capable of moving the rollers in conjunction with each other. Also, JP-A-4-8298
In JP-A No. 3 (1999) -1995, two rollers provided in parallel to rotate in contact with each other and pass the paper through the press-contact portion, a heater for heating at least one of the two rollers, and a roller passing through the press-contact portion were used. There is disclosed an image forming substance removing apparatus including a scraper 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, a method and an apparatus which do not use the above-mentioned solvent can be used, for example, to remove an image-forming substance from a recorded image carrier on which an image is recorded on ordinary paper having paper fibers exposed on the surface. In the fixing step of the electrophotographic method, the image forming substance is firmly fixed to the fibers on the surface of the image holding member, for example, by fusing the image forming substance mainly composed of the heat-fusible resin to the image holding member. When the imaging substance is removed, the paper fibers on the surface are peeled off together with the imaging substance, thereby damaging the paper quality.
In particular, when heat or pressure is applied to the ink exfoliated body, the endless sheet or the roller in order to enhance the removability of the image forming substance, depending on various conditions, conversely, the fixing between the image forming substance and the image holding body may be performed. In some cases, the removal properties were increased, making removal difficult.

[0005] Therefore, the applicant of the present invention has previously reported that a recorded image carrier contains water as a destabilizing agent, an aqueous solution containing a surfactant, an aqueous solution containing a water-soluble polymer, and a mixture of a surfactant and a water-soluble polymer. Holding at least one kind of water or an aqueous solution selected from the group consisting of aqueous solutions containing, and interposing a peeling member, and peeling the image forming substance from the image holding member by heat bonding or pressure bonding to the peeling member. A method for removing an image forming substance has been proposed (for example, Japanese Patent Application No. 4-255).
No. 916). According to this, only the image forming substance can be removed without relatively damaging the paper quality of the image holding member.

[0006]

However, in the above-described conventional method and apparatus for removing an image forming substance from an image carrier, a destabilizing agent is applied to the image carrier, and the image forming substance is peeled from the image carrier. When the image carrier is repeatedly used after performing the image forming substance removal process, the image carrier may be damaged if the number of repetitions of the image forming material removal process increases. In particular, when the image carrier is a transfer paper of paper quality, there is a possibility that the paper quality such as wrinkles and waving may be deteriorated, and this deterioration of the paper quality causes a jam or the like at the time of image formation. In order to suppress the occurrence of damage to the image carrier such as deterioration of paper quality, the present applicant does not apply a destabilizing agent or a penetration enhancer to the entire surface of the image carrier,
Japanese Patent Application Nos. 5-222120 and 5-222121 propose a device for applying a destabilizing agent only to an image forming portion on an image carrier.

Here, the inventors of the present invention have found that the damage caused on the image carrier gradually deteriorates in accordance with the number of repetitions of the image forming substance removal processing, and the image carrier cannot be reused. It was confirmed. For example, the aforementioned Japanese Patent Application No. 5-2
Even when the apparatus proposed in Japanese Patent Application No. 22120 and Japanese Patent Application No. 5-222121 is used, the image forming substance
After ten to several dozen repetitions, damage such as deterioration of paper quality occurs on the image carrier, which may cause a jam or the like during image formation.

When the image forming material is removed and the image carrier is repeatedly used, the state of the image carrier changes depending on the history of the image forming material removal process, and the optimum condition for the image carrier is obtained. Process conditions for the removal of
For example, processing conditions that can minimize damage to the image carrier and completely remove the image-forming substance may change.

The problem of the occurrence of damage to the image carrier due to the repeated use of the image carrier is that the image forming substance is peeled off using a peeling member after the destabilizing agent is applied to the image carrier. Is not limited to the case of removing by
This is also involved in the method and apparatus for removing an image forming substance described in the official gazette such as No. 1576.

The present invention has been made in view of the above problems, and an object of the present invention is to minimize damage to an image carrier by optimizing an image forming substance removing process. Ki out to prolong the re-use life of the image carrier
That is to provide an image forming substance removal SaSo location from the image carrier.

[0011]

[0012]

[0013]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
Further, the invention according to claim 1 is provided with a peeling means for bringing a peeling member into close contact with the image forming substance on the image holding body and peeling and removing the image forming substance from the image holding body. Formed
In the image forming substance removing apparatus from the image carrier to be removed from the image holding member to an image forming material of the image are, said imaging material removal
The image forming substance formed on the image carrier before the previous processing
A processing status mark indicating the processing status of removal or the image storage
Detecting means for detecting the surface state of the carrier, and controlling the degree of close contact between the image forming substance on the image carrier and the peeling member based on the processing status mark or the detection result of the surface state of the image carrier. And control means for performing the control .

The invention according to claim 2 further comprises a peeling means for bringing a peeling member into close contact with the image forming substance on the image carrier and peeling and removing the image forming substance from the image carrier. body
The image forming substance of the image formed on the image carrier
In an apparatus for removing an image forming substance from an image carrier to be removed,
A softening means for softening an image forming substance adhering to the image carrier immediately before or in contact with the peeling member ;
Before the image-forming substance removal process, the
Status indicator that indicates the status of the image forming substance removal process
Detection means for detecting the surface state of the image carrier,
Based on the detection result of the surface state of the processing status mark or image carrier and is characterized in that a control means for controlling the degree of softening of the image forming substance by softening means.

Further, the invention according to claim 3 is provided with a peeling means for bringing a peeling member into close contact with the image forming substance on the image carrier and peeling and removing the image forming substance from the image carrier. body
The image forming substance of the image formed on the image carrier
In an apparatus for removing an image forming substance from an image carrier to be removed,
Formed on the image carrier prior to the image forming substance removal process.
Status indicator to show the status of the process
Detection means for detecting the surface state of the image carrier,
Based on the detection result of the surface state of the processing status mark or image carrier and is characterized in that a control unit that controls the moving speed of the image carrier during the processing of said image forming substance removed .

According to a fourth aspect of the present invention, there is provided an image holding member having an image forming substance stably adhered to a surface thereof, and a destabilizing agent for making the state of adhesion between the image forming substance and the image holding substance unstable. A means for providing a penetration enhancer for facilitating penetration into the holding member to the image holding member; and a means for providing the destabilizing agent to the image holding member provided with the penetration promoting member. A stabilizing agent applying means, and a peeling means for bringing a peeling member into close contact with the image forming material on the image carrier to which the destabilizing agent has been provided, and peeling and removing the image forming material from the image carrier. In the apparatus for removing an image forming substance from an image carrier, comprising: a process status mark for displaying a process status of the image forming material removal formed on the image carrier before the image forming material removal process; or Detecting means for detecting the surface state of the image carrier, and the processing status mark or the surface of the image carrier; Based on the state of the detection results and is characterized in that a control means for controlling the permeability enhancer applying means.

[0017]

According to a fifth aspect of the present invention, there is provided an apparatus for removing an image forming substance from an image carrier, which removes the image forming substance of an image formed on the image carrier from the image carrier. Prior to the removal processing, a processing status mark indicating the processing status of the removal of the image forming substance formed on the image carrier, or detection means for detecting the surface state of the image carrier, and it is characterized in that provided a processing state mark forming means for forming a processing status mark.

According to a sixth aspect of the present invention, in the apparatus for removing an image forming substance from an image carrier according to the fifth aspect , a next processing status mark is formed at a position different from the processing status mark detected by the detection means. It is characterized by doing.

According to a seventh aspect of the present invention, in the apparatus for removing an image forming substance from an image carrier according to the fifth aspect , the processing status mark is formed at a central portion of the image carrier. It is.

According to an eighth aspect of the present invention, in the apparatus for removing an image forming substance from an image carrier according to the fifth aspect, a mark made of an image forming substance having magnetism is used as the processing status mark. Is what you do. For example, a mark made of magnetic toner or magnetic ink can be used.

According to a ninth aspect of the present invention, in the apparatus for removing an image forming substance from the image carrier according to the fifth aspect, a mark made of an invisible color image forming substance is used as the processing status mark. It is characterized by the following. For example,
A mark made of yellow ink, toner, or the like can be used.

[0023] The invention of claim 1 0, in the image forming substance removing apparatus from the image holding member according to claim 5, the image carrier by the image forming apparatus for reproducing an image of a specific color of the document to the image carrier on A mark made of an image-forming substance having a color which is not reproduced above is used. For example, when the image forming apparatus includes an image reading device that reads an image of a document, a mark made of an image forming material of a color that cannot be read by the image reading device is used. For example, when the image forming apparatus cannot reproduce a blue image, a mark made of blue ink, toner, or the like is used.

[0024]

[0025]

[0026]

[0027]

[0028]

According to the first aspect of the present invention, an image on the image carrier is detected by the control means based on a processing status mark formed on the image carrier or a detection result of a surface state of the image carrier. The degree of close contact between the forming material and the peeling member is controlled. This control allows the closeness to be set to minimize damage to the image carrier. For example, if the image carrier is damaged by repeatedly removing the image forming substance, the damage is determined from the processing status mark or the detection result of the surface state of the image carrier, and the degree of closeness is reduced. Will be able to do that.

In the second aspect of the present invention, the softening means softens the image forming substance adhering to the image carrier immediately before or in contact with the peeling member, so that the image forming material is softened. The adhesion between the support and the image forming substance can be further reduced. The control means controls the degree of softening of the image forming material by the softening means based on the processing status mark formed on the image holding member or the detection result of the surface state of the image holding member. This control allows the degree of softening of the imaging substance to be set to minimize damage to the image carrier. For example, if the image carrier is damaged by repeatedly removing the image forming substance, the damage is determined from the processing status mark or the detection result of the surface state of the image carrier, and the image is softened by the softening means. The degree of softening of the forming substance can be reduced.

According to a third aspect of the present invention, the control means removes the image forming substance based on a processing status mark formed on the image carrier or a detection result of a surface state of the image carrier. The moving speed of the image carrier in the middle is controlled. With this control, the moving speed of the image carrier can be set so as to minimize damage to the image carrier. For example, if the image carrier is damaged by repeatedly removing the image forming substance, the damage is determined from the processing status mark or the detection result of the surface state of the image carrier, and the damage of the image carrier is determined. The moving speed can be increased .

According to a fourth aspect of the present invention, in accordance with the control means, based on the processing status mark formed on the image carrier or the detection result of the surface state of the image carrier, the penetration enhancer applying means is provided. Control. With this control, it is possible to set whether or not to apply the penetration enhancer and to set the amount so as to minimize damage to the image carrier. For example, in the case where the image carrier is damaged by repeatedly removing the image forming substance, the damage is determined from the processing status mark or the detection result of the surface state of the image carrier, and the penetration enhancer is used. Can be prevented from being applied, or the amount of application can be reduced.

[0032]

According to the fifth aspect of the present invention, a processing status mark formed on the image carrier by the detecting means is provided.
Alternatively, the surface state of the image carrier is detected, and the detection result can be used for controlling the process conditions in the image forming substance removing process, and the image formation on the image carrier is performed by the processing status mark forming means. Since the processing status mark indicating the processing status of the substance removal is formed, a new processing status mark formed on this image carrier is detected before the next image forming substance removal processing is performed, and the image processing apparatus detects the new processing status mark. It can be used for controlling the process conditions of the forming substance removal treatment.

Here, if the formation position of the processing status mark overlaps with the image forming area of the image carrier, it becomes difficult to detect the processing status mark separately from the image. It is desirable to form it in the non-image forming area of the image carrier. Thus, the processing status mark can be accurately detected without confusing the processing status mark with the image. Since the normal non-image forming area is at the end of the image carrier, the processing status mark may always be formed at the end.

When it is determined on which surface of the image holding member an image is to be formed, a processing status mark is formed on a non-image forming surface opposite to the image forming surface. With this configuration, the processing status mark can be accurately detected without confusing the processing status mark with the image. In this case, as in the case where the processing status mark is formed in the non-image forming area on the image forming surface,
There is no need for a mechanism for slightly moving the image carrier or moving the processing status mark forming means.

[0036] In the invention of claim 6, in has been processed status mark different positions detected by said detecting means, by forming a next processing state mark, processing status mark formed on the image carrier is not cleared Even in the case where the next new processing status mark is formed as it is, the processing status mark does not overlap, and the latest processing status mark can be accurately detected.

In the case where the processing status mark is formed at one location on the periphery of the image carrier, an image is formed on the image carrier, and then the image carrier is set in the image forming substance removing device. Since the relative position of the processing status mark on the image carrier with respect to the processing status mark detection point differs depending on the direction, it is necessary to detect some points on the periphery of the image carrier. For example, when a processing status mark is formed near one corner of a rectangular image carrier, it is necessary to detect the vicinity of four corners of the image carrier. For this detection, a mechanism for moving the image carrier or moving the processing status mark detecting means is required.

[0038] Therefore, in the invention of claim 7, the central portion of the image carrier, to form the processing status mark. Thus, the detection position for detecting the processing status mark is fixed to one location, and the processing status mark can be always detected at this detection position.

[0039] In the invention of claim 8, as the process status mark, by using a mark consisting of an image forming substance having magnetism, as detection means for detecting a processing state mark, a small sensor such as a magnetic sensor Can be used.

According to the ninth aspect of the present invention, by using a mark made of an invisible color image forming substance as the processing status mark, when the image carrier is reused,
The processing status mark becomes less noticeable, and does not interfere with the image when a new image is formed.

[0041] In the invention of claim 1 0, as the process status mark, made from the image forming substance a color that is not reproduced on the image carrier by the image forming apparatus for reproducing an image of a specific color of the document to the image carrier on By using the mark, after the image carrier is reused to form an image, when the image of the image carrier is further reproduced and formed on another image carrier, the processing status mark is Will not be copied along with

[0042]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention is applied to an image holding apparatus for removing a heat-fusible toner (hereinafter, referred to as a toner) as an image forming substance from a transfer paper as an image holding body on which an image is formed by a transfer type electrophotographic copying machine. An embodiment applied to an apparatus for removing an image forming substance from a body (hereinafter, referred to as a toner removing apparatus) will be described.

FIG. 1 is a front view showing a schematic configuration of the toner removing device according to the present embodiment. First, an outline of the whole will be described. This toner removing device includes a sheet feeding unit 1 that separates and feeds, one by one, transfer papers 10 on which toner images formed in a stacked state are formed; The liquid is supplied to the transferred transfer paper 10, and the transfer paper 10 to which the liquid is supplied is supplied.
A liquid applying unit and a toner peeling unit 6 for peeling and removing the toner from the toner, a drying unit 4 for drying the transfer paper 10 from which the toner has been removed, a separation unit 40 for separating the transfer paper 10, and a separation unit 40 And a paper receiving unit 5 that receives the transfer paper 10 separated by the above.

Next, the units 1, 4, 5, and 5 in the illustrated example will be described.
6 and 40 will be described. The paper feed unit 1 feeds the transfer paper 10 on the manual feed stand 101 with a paper feed roller 102, separates the multi-fed paper with a pair of separation rollers 103, adjusts the timing of only one transfer paper 10 and adjusts the skew. This is sent out by a pair of registration rollers 104 for correction. Since the specific configuration and operation are the same as those of the paper feeding mechanism in the electrophotographic copying machine, detailed description is omitted.

A processing status mark formed on the transfer paper 10 fed from the manual feed stand 101 and a surface state of the transfer paper 10 are provided between the separation roller pair 103 and the registration roller pair 104. Is provided with a transfer paper state sensor 105 as a detecting means for detecting the transfer paper state. The transfer paper state sensor 105 will be described later in detail.

The liquid applying unit and the toner peeling unit 6 includes a paper holding drum 601 which rotates by holding the leading end of the transfer paper by a clamp claw 602 and holding the transfer paper on its peripheral surface. A liquid application unit for supplying a liquid to the transfer paper 10 held on the peripheral surface is provided.

The liquid application section applies a penetration promoting liquid 21 as a penetration enhancer for promoting the penetration of the processing liquid 20 described below into the transfer paper 10 on the transfer paper 10 on the paper holding drum 601. A process of applying the treatment liquid 20 as a destabilizing agent to the liquid application unit 2a and the transfer paper 10 to stably adhere the toner stably adhered to the surface of the transfer paper and the surface to the transfer paper 10 And a liquid application section 2b. The permeation promoting liquid applying section 2a and the processing liquid applying section 2b
Each of the liquid containers 201a and 201b, the application roller 207a,
b, liquid supply members 246a and 246b for supplying liquid from the liquid container to the application roller by capillary action or the like.
Each of the application rollers 207a and 207b is connected to the paper holding drum 60.
1 is configured to be movable so as to come into contact with or separate from the surface, and the movement is controlled by the control unit. Each of the liquid supply members 246a and 246b is formed of a liquid supply material such as felt, for example, and supplies the liquid in the liquid containers 201a and 201b to the application roller by a capillary phenomenon or the like.

Here, the treatment liquid 20 includes water (including distilled water), an aqueous solution containing a water-soluble polymer, an aqueous solution containing a surfactant, and an aqueous solution containing a water-soluble polymer and a surfactant. At least one kind of water or an aqueous solution selected from the following can be used. In addition, the water or the aqueous solution may contain a predetermined organic solvent. Further, as the treatment liquid 20, only an organic solvent can be used. In addition, the permeation promoting liquid 21 includes:
At least one aqueous solution selected from the group consisting of an aqueous solution containing a surfactant and an aqueous solution containing a water-soluble polymer and a surfactant can be used.

Examples of the above-mentioned water-soluble polymer include starchy substances (potato starch, potato starch, tapioca starch, wheat starch, corn starch, etc.),
Mannan (konjac, etc.), seaweed (funori, agar, sodium alginate, etc.), plant mucilage (trolo-mallow,
Tragacanth gum, gum arabic, etc.), microbial mucilage (dextran, levan, etc.), protein (paste,
Natural polymers of gelatin, casein, collagen, etc., cellulose-based (viscose, methylcellulose, ethylcellulose, hydroxyethylcellulose, carboxymethylcellulose, etc.) and starch-based (soluble starch, carboxymethylstarch, dialdehyde starch) semi-synthetic polymers, Examples include, but are not limited to, synthetic polymers.

Further, as the above-mentioned surfactant, for example,
Anionic (carboxylate, sulfonate, sulfate, phosphate, phosphonate, etc.), Cation (amine, quaternary ammonium, benzalkonium, benzethonium chloride, pyridinium Salts, imidazolinium salts, sulfonium salts, polyethylenepolyamines, etc.), amphoteric (amino acids, carboxybetaines, sulfobetaines, aminosulfates, aminocarboxylates, imidazoline derivatives, etc.), nonionics (ether type, ether ester type) , An ester type, a nitrogen-containing type, a polyhydric alcohol, an amino alcohol, a polyethylene glycol and the like), a general surfactant, a fluorine-based surfactant, and the like, but are not limited thereto.

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

Examples of the organic solvent used alone include hexane, heptane, octane, nonane, spirilit, naphtha N01-6 (trade names of Shell Petroleum), isoper E, L, K, V (trade name of Exxon Corporation), IP Solvent (trade name of Idemitsu Oil Co., Ltd.), Shell Solsol 70, 71, Solvesso 100,
150 (trade name of Shell Oil Company), Ascom OMS,
460 (trade name of Spirits), Vegasol 103
0, 2130, 3040 (trade name of Mobile Oil Co., Ltd.) and the like. Further, Fluorinert FC 40, 43, 70, 77 (a trade name of Sumitomo 3M), which is a fluorinated solvent,
Fluid E10, 16, 18, etc., silicone solvent Shin-Etsu Silicone KF96 (trade name), Toray Silicone SH200, 344 (trade name), Toshiba Silicone T
SF431 (trade name) and the like, but are not limited thereto.

The liquid applying unit / toner peeling unit 6 includes first to third peeling rollers 3 as peeling members for peeling and removing the toner from the transfer paper 10 to which the liquid is supplied.
02a, b, and c. The first to third peeling rollers 302a, 302b, 302c are configured to be movable so as to come into contact with or separate from the surface of the paper holding drum 601, and the movement thereof is controlled by a control unit. Further, the first to third peeling rollers 302
The surfaces of a, b, and c are formed by using a material having an adhesive force greater than the adhesive force between the transfer paper 10 and the toner at least with respect to the softened toner. Specifically, a toner component resin that is the same as or similar to the toner described above, a component resin of an adhesive, or the like can be used.
A metal material such as a copper-based material, a nickel-based material, and an iron-based material can be used, but is not limited thereto. Further, the resin may be a water-soluble resin or a water-insoluble resin.

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

The resin components of the adhesive include protein adhesives such as glue, gelatin, albumin, and casein, and carbohydrate adhesives such as starch, cellulose, and complex polysaccharides (eg, gum arabic and tragacanth). Agent, vinyl acetate polymer and copolymer, acrylic,
Thermoplastic adhesives such as ethylene copolymers, polyamides, polyesters, and polyurethanes; rubber adhesives such as polychloroprene, nitrile rubber, recycled rubber, SBR, and natural rubber; Pressure-sensitive adhesive, polyethylene terephthalate (PE) with titanium oxide dispersed
T), and the like, but are not limited thereto.

When the above-mentioned resin is used, it is desirable to form a multilayer structure of at least two layers of a support and a surface layer from the viewpoint of prevention of elongation due to tension and heat, durability and the like. That is, in the case of a roller-shaped peeling member as in the illustrated example, it is desirable to form the peeling member by forming a surface layer made of the above resin or the like on a base roller as a support.

As a support for supporting the above resin and the like,
For example, a rubber roller, a sheet, a cellophane tape, a kraft paper adhesive tape, a polyvinyl chloride tape, an acetone tape, a tape such as a filament reinforcing tape, and the like can be used, but are not limited thereto.

The first to third peeling rollers 302a, 302b,
c, a heating lamp 3 as a means for softening the toner
01a, b, and c. This heating lamp 301
a, b, and c are in close contact with the front and back of the transfer paper 10 and
The toner adhered to the transfer paper 10 is heated to soften, thereby facilitating the peeling of the toner from the fibers of the transfer paper 10. This heating is desirably performed to such an extent that the toner on the transfer paper 10 does not melt at the pressure contact portion with the drum 601. When the toner is melted, the toner on the transfer paper 10 is not divided into the paper side and the first to third peeling rollers 302a, 302b, and 302c, and the first to third peeling rollers 302a, 302b, and 302b are separated.
This is because the transfer to the c side becomes difficult. If the paper is excessively heated, the transfer paper 10 is too dry while the first to third peeling rollers 302a, b, and c pass through the pressure contact portions of the transfer paper 10 with the paper holding drum 601. The transfer paper 10 may adhere to the first to third peeling rollers 302a, 302b, and 302c via the toner and may not be able to be separated. Therefore, it is desirable to heat the transfer paper 10 to such an extent that the transfer paper 10 after passing through the heating unit is left with some moisture and the re-adhesion of the toner can be prevented.

The liquid applying unit / toner peeling unit 6 includes the first to third peeling rollers 302a, 302b, and 302c.
A cleaning device 304 for cleaning the surface of the device, a driving unit (not shown), and the like are provided. The cleaning device 304 includes a cleaning roller 305a that removes toner on the surfaces of the first to third peeling rollers 302a, 302b, and 302c.
b, c, scraper blades 306a, b, c for scraping off the toner on the cleaning roller, and a toner receiver (toner container) 307 for accommodating the toner scraped off by the scraper blade. This cleaning roller 30
5a, b, c are the first to third peeling rollers 302a, b, c
The first to third peeling rollers 302a, 302b, and 302c may be configured to smooth the surfaces of the first to third peeling rollers 302a by removing excess toner on the surface of the first roller. The cleaning rollers 305a, 305b, 305c
Instead, a cleaning blade, a scraper, or the like directly contacting the surfaces of the first to third peeling rollers 302a, 302b, 302c may be used.

The first to third peeling rollers 302a,
b and c are configured such that they have different adhesion abilities to at least the softened toner. For example, in the present embodiment, the surface of the first peeling roller 302a is 3
It is the coarsest of the book peeling rollers, and has the smallest adhesion ability to the softened toner. In addition, the surface of the third peeling roller 302c is the finest of the three peeling rollers, and has the largest adhesion ability to the softened toner. Then, the surface of the second peeling roller 302b is
It is configured to have an intermediate roughness with the peeling roller 302c,
The ability to adhere to the softened toner is also intermediate between the first peeling roller 302a and the third peeling roller 302c. Instead of the first to third peeling rollers 302a, 302b, 302c, a belt having the same surface characteristics may be used.

Further, as a detecting means for detecting an unremoved image remaining on the transfer paper 10 held on the paper holding drum 601 after the toner peeling process, the drum 60
A CCD sensor 603a is provided downstream of the peeling roller 302 in one rotation direction.

The drying unit 4 is for drying the transfer paper 10 and is composed of an upper drying roller 402 made of, for example, aluminum and having a built-in heating lamp 401, and a lower drying roller 404 pressed from below against the roller. . The lower drying roller 404 has a surface layer made of a liquid-supplying member, and is in contact with a diaphragm blade (not shown) that squeezes the liquid on the surface layer. Instead of or in addition to such a pair of drying rollers 402 and 404, a belt-shaped member, a hot-air fan, an infrared lamp, or the like may be used.

The sorting unit 40 includes a deflecting claw 41, guide plates 42a and 42b, and switches the position of the deflecting claw 41 in accordance with control data from a control unit, which will be described later. The paper 10 is branched into a guide plate 42a forming a conveyance path for the transfer paper 10a in which the unremoved image does not remain and a guide plate 42b forming a conveyance path for the transfer paper 10b in which the unremoved image remains. Transport.

The paper receiving unit 5 is provided with two paper output trays 501a and 501b for receiving the transfer papers 10 separated by the separation unit 40. The transfer paper 10a having no unremoved image is discharged. The transfer paper 10b, which is discharged to the discharge tray 501a by the roller pair 502a, and on which the unremoved image remains, is discharged by the discharge roller 502b.
1b. The paper discharge tray 501a of the paper receiving unit 5 is an elevator tray that can be raised and lowered, and includes a paper discharge level sensor 505 that detects the level of the transfer paper 10a on the paper discharge tray 501a.

Although not shown, the toner removing device includes a detecting unit for detecting whether or not the transfer paper 10 is present on the manual feed tray 101, a detecting unit for detecting a double feed of the transfer paper 10 by the paper feeding unit 1, A liquid remaining amount detecting means in each of the liquid containers 201a and 201b for the permeation promoting liquid 21 and the processing liquid 20;
There are provided a means for automatically replenishing the liquids 01a and 01b, a means for detecting a jam in the apparatus of the transfer paper 10, a means for controlling the lighting of each heating lamp, and a means for detecting a full toner in the toner receiving container 307.

FIG. 2 is a block diagram of the electrical unit of the toner removing device of FIG. The commercial power supply 901 is connected to a direct current power supply (PSU) 903 via a main switch 902. A control unit as a control unit of the toner removing device includes a CPU 904, a ROM 905, and a CLK oscillator 90.
6, address data bus 907, parallel interface 908, driver 910, A / D converter 91
8, a RAM 919, a control unit 920 of the operation display unit 50, a serial interface 921, and the like.

The CPU 904 includes a CLK oscillator 90
6, a ROM 905, a parallel interface 908, and an A / D converter 91 in which a control program is written via an address data bus 907.
8, a RAM 919, a serial interface 921, and the like. In addition, the parallel interface 9
The output port 08 is connected to a driver 910 for driving a relay, a motor, and the like, and a paper discharge level sensor 505 of the paper receiving unit 5.

The output port of the serial interface 921 is connected to a control unit 920 of the operation display unit and a control unit 930 of a mark forming unit described later.
The A / D converter 918 includes a CCD sensor 60
3a, b, transfer paper state sensor 105, and each roller 30
2a, b, c, thermistor 91 for detecting temperature of 402
6,917 are connected.

The commercial power supply 901 has a main switch 902, a relay 911, and a solid state relay SSR1 (91) in addition to the DC power supply (PSU) 903.
2) and the release roller 30 via the SSR2 (913).
Resistors 914a, b, c corresponding to heating lamps 301a, b, c for heating 2a, b, c, and upper drying roller 4
Resistor 91 corresponding to heating lamp 401 for heating 02
5 is connected.

The driver 910 includes solid state relays SSR1 (912) and SSR2 (9).
13), a paper feed motor 923, a registration motor 924, a main drive motor 922, a paper discharge tray motor 931 for raising and lowering the paper discharge tray 501a, a paper holding drum motor 933, application roller motors 928a and 928b, peeling roller motors. Pressure motors 929 a, b, c, solenoid 926 for opening and closing clamp claw 602, application roller solenoid 927
a, b, solenoid 93 for switching the position of deflection claw 41
2. The contact drive coil 911a of the relay 911 is connected .

In the above-mentioned electrical component, the main switch 90
2 is turned on, the commercial power supply 901 switches to the DC power supply (PS
U) 903 is supplied with an AC power supply voltage.
From 03, a DC power supply voltage is supplied to each control IC. D
The CPU 904 to which the C power supply voltage has been supplied resets the program counter and the like, and starts control based on the contents of the control program written in the ROM 905. Further, a CLK oscillator 906 supplies a reference clock (CLK) necessary for the operation of the CPU.

The relay 911 is turned off by the CPU 904.
Data to be transmitted via the parallel interface 908
Is sent to the driver 910, the relay 911 contacts
When the drive coil 911a is energized, the contact of the relay 911
Is closed, and the heating control of the heating lamps 301a, 301b, 401c, and 401c is performed.
An AC power supply voltage is supplied to the control circuit. And CPU 9
04 to turn on relays 912 and 913, respectively.
When the data is sent to the driver 910, the relay 912 is turned on.
Current flows through the resistors 914a, 914b, and 914c, and the heating
First to third peeling rollers 302 by pumps 301a, 301b, 301c
The heating of a, b, and c is started. In addition, the relay 913
When turned on, a current flows through the resistor 915 and the heating lamp 4
01 heating of the drying roller 402 is started.. Ma
Each roller 3 detected by the thermistors 916 and 917
Analog detection data of temperature of 02a, b, c, 402
Is converted to digital data by the A / D converter 918.
Read by the CPU 904 and written into the RAM 919
The temperature is controlled by comparing it with the value of the control temperature. This
Is stored in the control unit 920 of the operation display unit 50.
From the serial interface 921 to the RAM
919.

The paper feed roller 102 and the separation roller pair 1
All the loads other than the load 03 and the registration roller 104 are synchronously driven by the main drive motor 922. Further, which coating roller is brought into contact with the paper holding drum 601 is controlled via the coating roller solenoids 927a and 927b, and the rotation drive of the rollers 207a and 207b is controlled via the coating roller motors 928a and 928b. Is done. In addition, the separation / contact of the first to third peeling rollers 302a, 302b, and 302c and the amount of pressure applied to the paper holding drum 601 by each peeling roller are controlled via the peeling roller pressing motors 929a, 929b, and 929c.

In the toner removing device having the above-described structure, the transfer paper 10 sent from the paper feeding unit 1 is applied to the permeation promoting liquid applying section 2 a of the liquid applying unit and the toner peeling unit 6.
Then, the permeation promoting liquid 21 is applied as necessary, and after the processing liquid 20 is applied by the processing liquid application section 2b, it is sent to the toner peeling section. In this toner peeling section, the toner adhered to the transfer paper 10 is removed by the first to third peeling rollers 302a, 302b, 302b.
c) is softened by heating from a peeling roller selected from the group consisting of c and adheres to the surface of the peeling roller. Then, when the transfer paper 10 is separated from the surface of the separation roller, the toner adhered to the surface of the separation roller is separated from the transfer paper 10, whereby the toner is removed from the transfer paper 10. The transfer paper 10 from which the toner has been removed is dried by the drying unit 4, separated by the separation unit 40, and then discharged to the paper receiving unit 5. As described above, according to this toner removing device, the processing liquid 20 is supplied to the transfer paper 10 to which the toner has adhered, and the toner is peeled off in a state where the processing liquid 20 has penetrated into the interface between the transfer paper 10 and the toner. The toner can be removed without damaging the paper fibers.

When the toner is removed by the toner removing device and the transfer paper 10 is repeatedly reused, if the number of times of repeated use increases, the transfer paper 10 may be damaged such as fuzz. There is a possibility that it will. The damage that has occurred on the transfer paper 10 gradually worsens according to the number of repetitions of the toner removal process, that is, the number of times the transfer paper 10 is repeatedly used, and the transfer paper 10 cannot be reused. Further, if the paper quality is deteriorated due to damage such as wrinkles or waving of the transfer 10, if the transfer paper 10 is reused and used in a copying machine or the like, it causes a jam or the like at the time of copying.

Further, the transfer paper 1 is removed by performing a toner removing process.
When the “0” is repeatedly reused, the process conditions of the optimal toner removal process for the transfer paper 10, for example, damage to the transfer paper 10 are minimized, and the transfer paper 10 There is a possibility that the removal processing conditions under which the toner can be completely removed from the toner may change.

Therefore, in the present embodiment, a process status mark indicating the process status of the toner removing process in the toner removing device is detected, and based on the detection result, the control for changing the setting of the process condition of the toner removing process is performed. Are doing. In this embodiment, the transfer paper 10 is used as the processing status mark.
A transfer paper state sensor 105 is provided between the separation roller pair 103 and the registration roller pair 104 of the paper supply unit 1 as a detecting means for detecting the processing status mark. .

Further, in this embodiment, a processing status mark indicating the processing status of the toner removing process is formed on the transfer paper 10 after the toner is removed, for the next toner removing process and the like. In the present embodiment, the processing status mark is formed so as to display the number of times the transfer paper 10 is reused. However, as in a modified example described below, the paper holding drum 601 is moved until the toner is completely removed. You may form so that the removal processing conditions, such as how many rotations and which peeling roller were used, may be displayed.

Here, the processing status mark is transferred to the transfer paper 10
Processing status mark forming unit as processing status mark forming means (hereinafter referred to as mark forming unit)
Reference numeral 30 is disposed between the drying unit 4 and the separation unit 40 as shown in FIG. The sorting unit 40 is disposed immediately after the drying unit 4, and the mark forming unit 30 is moved to the discharge tray 501 in the discharge cassette 5.
They may be arranged immediately before a and b.

FIGS. 3A and 3B are a front view and a perspective view of a punching unit which is an example of the configuration of the mark forming unit 30. FIG. This punching unit comprises a movable punch body 3
1, a drive motor 32 controlled by the control unit, a feed screw 33 rotationally driven by the drive motor, a movable punch body 3
1 is provided with a guide rail 34 for guiding the sheet 1 in the direction of arrow A in the figure, a transport roller 35 for the transfer paper 10, a transport guide member 36, a drive unit (not shown) for the transport roller 35, and the like.

The movable punch body 31 includes a cylindrical punch member 31a and a punch member 3 each having a sharp tip.
The arm 31b to which 1a is fixed is controlled by the control unit, and the driving unit 31d that drives the punch member 31a in the vertical direction (the direction of the arrow B in the drawing) via the arm 31b engages with the lowered punch member. It is constituted by a punch table 31f having a hole 31e formed at a position. Further, a through hole is formed in a side wall portion of the movable punch body 31 through which the feed screw 33 penetrates, and an inner peripheral surface of the through hole is engaged with the feed screw 33 (male screw). Threaded. The feed screw 33 is inserted into the through hole of the movable punch body 31 where the female screw is cut while being screwed. Accordingly, the movable punch body 31 can reciprocate in the direction of arrow A in accordance with the rotation of the feed screw 33. Further, a CCD sensor (not shown) for detecting an existing punch hole or the like may be provided on the upstream side of the punching unit in the transfer paper transport direction.

In the punching unit, the transfer paper 10 conveyed from the drying unit 4 is conveyed from the left side of the drawing onto the punch table of the movable punch main body 31 and a predetermined position determined in advance from the punch position data. The drive of the transport roller 35 is controlled so as to stop it. The punch position in a direction (arrow A direction) orthogonal to the transfer paper transport direction is controlled by rotating the feed screw 33 by the drive motor 35 and moving the movable punch body 31. After the control of the punch position is completed, the drive unit 31c is operated,
The punch member 31a is lowered via the arm 31b to punch the transfer paper 10. Here, the number of punch holes may be one, but a plurality of punch holes may be formed.

FIG. 4 is an explanatory view in the case where an ink jet type printing unit is used as another example of the configuration of the mark forming unit 30. The processing status mark of the transfer paper 10 on which the image is formed is detected by the transfer paper state sensor 105, and the detection data is sent to the control unit and stored, and is used for subsequent control. And transfer paper 1
Reference numeral 0 denotes a printing unit 37 disposed between the transport rollers 300 after passing through the toner removing unit including the liquid applying unit / toner peeling unit 6 and the drying unit 4, and a processing status mark is formed.

FIG. 5 is a perspective view showing an example of the configuration of the printing unit. This printing unit is an ink jet type, has three jet nozzles, and has a holder 3.
Nozzle head 37 fixed to 7a, guide rod 3 that penetrates holder 37a and guides movement of nozzle head 37
8, a drive unit 39 for the nozzle head 37, and the like.
The driving section 39 includes a driving motor 39a, a driving pulley 39b fixed to a rotating shaft of the driving motor 39a, a driven pulley 39c, a driving wire 39c fixed to a nozzle head holder 37a and suspended between the pulleys 39b and c, and the like. Have been. Due to the rotation of the drive motor 39a, the nozzle head 37 moves in a direction orthogonal to the transfer sheet transport direction via the drive wire 39c. Each jet nozzle of the nozzle head 37 and the drive motor 39a are connected to a driver 910 of a control unit described later.

In the printing unit, the transfer paper 10 conveyed from the drying unit 4 is conveyed in the direction of the arrow, and the nozzle head 37 is controlled by the drive motor 39a.
Is moved in a direction perpendicular to the transfer paper transport direction. Then, ON / OF of each jet nozzle of the nozzle head 37 is performed.
By controlling F at a predetermined timing, the transfer paper 1
A predetermined processing status mark is formed on 0. In this print control, the transfer of the transfer paper 10 does not have to be stopped,
The transfer of the transfer paper 10 may be stopped at the timing of the movement of the nozzle head 37 and the printing by the jet nozzle.

In the configuration example of the printing unit shown in FIG.
Although the jet nozzles are configured to move in a direction perpendicular to the transfer paper transport direction, as shown in FIG. 6, a nozzle head 37 in which a large number of jet nozzles are arranged over the entire width of the transfer paper 10 is used. 10 may be arranged. In this case, a mechanism for moving the jet nozzle is not required.

The transfer paper state sensor 105 shown in FIG.
Alternatively or additionally, as shown in FIGS. 5 and 6, a CCD sensor 603b for detecting an existing processing status mark or the like may be provided upstream of the printing unit in the transfer paper transport direction.

FIG. 7 is a perspective view of a printer unit as another example of the configuration of the mark forming unit 30. This printer unit has the same configuration as a conventional electrophotographic copying machine, and includes a photosensitive drum 70, a charging charger 71, an optical writing optical unit 72, a developing unit 73, a transfer charger 74, a fixing roller pair 75, and the like. ing. The photoconductor layer on the surface of the photoconductor drum 70 is uniformly charged by the charging charger 71, and then is irradiated with a light image corresponding to the processing status mark from the optical unit 72 via the mirror 72a, and an electrostatic latent image is formed. An image is formed. This electrostatic latent image is developed by the developing unit and becomes a toner image. The toner on the photosensitive drum 70 is transferred to a predetermined position on the transfer paper 10 by the transfer charger 74 and is fixed by the fixing roller pair 75. With the above operation, a toner image of the processing status mark can be formed on the transfer paper 10. The printer unit includes a serial interface 92 of a control unit described later.
1 is controlled via a mark forming unit control unit 930 connected to the control unit 1.

When the processing status mark is formed by a toner image using the printer unit of FIG. 7 as the mark forming unit 30, the processing status mark can be removed by the toner removal processing. This makes it easy to overwrite the existing processing status mark with a new processing status mark. Therefore, the area where the processing status mark is formed can be set to a specific narrow area on the transfer paper 10, and the area where an image is formed when the transfer paper 10 is reused becomes large.

The processing status marks include punch holes formed by the punching unit, 〇 marks, X marks, and numbers formed by the printing unit and the printer unit.
For example, a barcode having a large amount of information as shown by the symbol C in FIG.

Further, the formation position of the processing status mark is
If the processing status mark overlaps with the image forming area of the transfer paper 10, it becomes difficult to detect the processing status mark separately from the image. It is desirable to configure a printer unit or the like. Thus, the processing status mark can be accurately detected without the processing status mark and the image being confused. Here, the normal non-image forming area is the transfer paper 1
Since it is at the end of 0, a processing status mark may always be formed at the end.

When it is determined on which surface of the transfer paper 10 an image is to be formed, the processing status mark is formed on a non-image forming surface opposite to the image forming surface. By configuring the printing unit or the printer unit or the like, the processing status mark can be accurately detected without confusing the processing status mark with the image. In this case, as in the case where the processing status mark is formed in the non-image forming area on the image forming surface, the transfer paper 10
And a mechanism for moving the printing position, such as a printing unit, is required.

Further, if a processing status mark is formed at the same position on the transfer paper by the punching unit or the printing unit, a newly formed processing status mark may not be read at all or may not be read accurately. Therefore, it is preferable that after reading the processing status mark, the mark forming position is stored, and a new processing status mark is formed at a position different from the mark forming position. As a result, the processing status mark can be read more accurately.

After the processing status mark is formed on the transfer paper, if the user does not know which direction to set the transfer paper when setting the transfer paper in the toner removing device, the processing status mark is displayed. In order to read, a complicated process such as moving the transfer paper or moving the transfer paper status sensor is required. To solve this,
For example, in the case of a toner removing device in which a transfer paper of any size is set on a manual feed stand or a paper supply tray of a paper supply unit based on the center of the transfer paper, a processing status mark is formed at the center of the transfer paper. Preferably, the mark forming unit 30 is formed. This makes it possible to set the transfer paper in the center of the transfer paper in any direction (for example, a direction rotated by 90 degrees or 180 degrees in the plane) when setting the transfer paper in the toner removing device without performing the above-described complicated process. The processing status mark can be detected by a transfer paper status sensor fixed at a predetermined location so as to detect the mark of the set.

When magnetic ink or toner is used as the ink or toner in the printing unit shown in FIGS. 5 and 6 and the printer unit shown in FIG. 7, the processing status mark is detected by a small sensor such as a magnetic sensor. As a result, the size of the device can be reduced.

When the printing unit shown in FIGS. 5 and 6 and the printer unit shown in FIG. 7 use an invisible color, for example, yellow, as the ink or toner, the transfer paper on which the processing status mark is formed is used. When an image is formed by a copying machine or the like by reusing the image, the processing status mark is difficult to see, so that the influence on the image can be reduced.

In the case where a color that cannot be read by an original reading device in an image forming apparatus such as a copying machine, for example, a blue color, is used as the ink or toner in the printing unit in FIGS. 5 and 6 and the printer unit in FIG. In the case where the transfer sheet on which the processing status mark is formed is reused to form an image by a copying machine or the like, and then the image on the transfer paper is read and copied, the processing status mark is used as the document reading device. Therefore, it is possible to prevent the processing status mark from becoming a part of the image to be copied and hindering the image formation.

Further, the transfer paper state sensor 105
It can be composed of a CD sensor, a magnetic sensor, a sensor using a laser beam, and the like, and detects a processing status mark indicating the number of reuses of the transfer paper 10. The transfer paper condition sensor 105 may be used to detect the degree of fuzziness on the surface of the transfer paper 10, the image density or image area ratio on the transfer paper 10, and the imprinting of the transfer paper 10 by a vermilion mark or the like. You may comprise so that presence or absence may be read.

FIG. 9 shows an example of the configuration of the transfer paper state sensor 105. In this configuration example, instead of detecting the processing status mark from the entire surface of the transfer paper, the processing status mark is searched for and read in a predetermined area, for example, a rectangular area of about 20 mm × 10 mm of the sum of the transfer paper 10. More specifically, white light from the white light source 105a is applied to the predetermined area, and the reflected light from the area is condensed by the reduction lens 105b to form an image on the area CCD 105c. In this example, the combination of the reduction lens 105b and the area CCD 105c can read the processing status mark without requiring a complicated mechanism for driving the mirror.

A transfer paper condition sensor 1 for detecting a processing status mark formed of yellow or blue ink or toner.
As 05, for example, the configuration shown in FIG. 10 can be adopted. The configuration of this example is substantially the same as that of FIG. 9, but differs from FIG. 9 in that a predetermined optical filter 105 d is provided. In this example, the reduction lens 105b and the area CCD 1
Although the optical filter 105d is provided between the area CCD 105c and the area CCD 105c, the optical filter 105d may be provided in the optical path from the transfer paper 10 to the area CCD 105c. Is also good. And
As the optical filter 105d, a filter that allows only light having a wavelength corresponding to yellow or blue to pass well is used. As a result, only the processing status mark formed of yellow or blue ink or toner can be selectively detected separately from other images, and the information of the processing status mark can be accurately read.

Instead of providing the optical filter 105d that allows only light of a specific wavelength to pass well as in the configuration example of FIG. 10, the area CCD 105c is formed to have high sensitivity only to light of a specific wavelength. May be.

The control for changing the setting of the processing condition of the toner removal processing based on the detection result of the processing status mark by the transfer paper state sensor 105 is performed as follows, for example.
FIG. 11 is a main flowchart showing an example of this control, FIG. 12 is a sub-flow chart showing an example of processing steps in the toner removal processing mode in the flowchart, and FIG. 9 is a sub-flowchart showing an example of the above.
First, in FIG. 11, as described above, the resistor 914a,
b, c, and 915, a current flows through each roller 302a,
The heating of b, c, 402 is started, and each roller 302a,
When the temperatures of b, c, and 402 reach a temperature (set value in the RAM 919) sufficient for peeling or drying, respectively, a display indicating that the operation can be performed on the operation display unit 50 via the control unit 920 (eg, LED lighting). Is shown. Then, the control unit 920
When the operation command data is transmitted, the CPU 904 operates the main drive motor 922. When the load of the motor can be driven at a constant speed, the CPU 904 drives the paper feed motor 923 to start paper feed (step 1). Transferred paper 10
The processing status mark formed on the transfer paper 10 is detected by the transfer paper state sensor 105, and data (reuse frequency, image density, image area ratio, etc.) for judging the reusability is read (step). 2). This detection data is A / D
The data is converted into digital data by the converter 918, and if necessary, image processing for determining the state of the transfer paper 10 is executed (step 3).

Next, the registration motor 924 rotates while timing with the sheet feeding motor 923 to prevent skew (step 4). Then, the detection data of the transfer paper state is compared with a control reference value (a limit value of the number of reuse times) written in the ROM 905 to determine whether or not the toner removal processing is possible (step 5). here,
If it is determined that the toner removal processing is impossible, the paper feed mode is entered (step 6), and the deflecting claw solenoid 932 is driven.
The transfer paper 10 is discharged to the paper discharge tray 501b (step 7). The transfer paper 10 that cannot be subjected to the toner removal processing may be discarded as it is, but may be cut by a shredder or used as a raw material for recycled paper, and various processing means are conceivable. On the other hand, when it is determined that the toner removal processing is possible, a toner removal processing mode described later is executed (step 8).

FIG. 12 shows an example of the toner removal processing mode. In this example, first, the registration motor 924 feeds the transfer paper 10 to the position of the clamp claw 602 where the paper holding drum 601 is opened. Here, when the control data for closing the clamp claw 602 of the paper holding drum 601 is sent to the parallel interface 908, the solenoid 926 is operated by the driver 910 to close the clamp claw 602 and hold the transfer paper 10 (step 8-). 1), turn on and rotate the paper holding drum motor 933 (step 8-
2).

Next, by the application rollers 207a and 207b,
The transfer paper 10 on the paper holding drum 601 is coated with the permeation promoting liquid 21 such as the surfactant and the treatment liquid 20 such as distilled water (Step 8-3). Thereby, the transfer paper 10
The processing liquid 20 is made to permeate the interface between the toner and the toner. Here, the conditions for applying each of the liquids 20, 21 to the transfer paper 10 may be varied based on the detection data read by the transfer paper state sensor 105.

Next, the toner is easily separated from the transfer paper 10 by heating by the heating lamps 301a, 301b and 301c, and the toner is transferred from the transfer paper 10 by the first to third release rollers 302a, 302b and 302c. A toner peeling process for peeling and removing is executed (step 8-4) .

In this toner peeling process (see FIG. 13),
First, the detection data of the image density of the transfer paper 10 (the amount of adhered toner on the transfer paper 10) read by the transfer paper state sensor 105 is compared with a control reference value written in the ROM 905 (step 8-4). -1). Here, when it is determined that the detection data of the image density is smaller than the control reference value c%, for example, in the case of an image of a normal document, the surface roughness of the three peeling rollers 302a, 302b, and 302c is the smallest. finely,
No. 3 which has the greatest adhesion to softened toner
The peeling roller 302c is moved by the peeling roller pressing motor 929c so as to come into contact with the paper holding drum 601 (step 8-4-2), and the toner is peeled off from the transfer paper 10 at the interface where the processing liquid 20 has penetrated. Removed.

On the other hand, when it is determined that the control reference value is c% or more, for example, in the case of an extremely solid black image, it is determined whether or not the first peeling process is performed (step 8-4-).
3). Here, if it is determined that this is the first peeling step, the first peeling roller 302a having the smallest adhesion ability to the softened toner is driven by the peeling roller pressing motor 929.
The toner is moved so as to be in contact with the paper holding drum 601 by a (step 8-4-4), and the toner is peeled off from the transfer paper 10 at the interface where the processing liquid 20 has penetrated and is removed. On the other hand, if it is determined that it is not the first peeling step, it is determined whether or not it is the second peeling step (step 8-4-5), and if it is determined that it is the second peeling step, it is softened. First peeling roller 30
A second peeling roller 302b having an adhering ability between the second peeling roller 302a and the third peeling roller 302c
9b, the toner is moved so as to come into contact with the paper holding drum 601 (step 8-4-6), and the toner is peeled off from the transfer paper 10 at the interface where the processing liquid 20 has penetrated, and is removed. If it is determined that the process is not the second peeling step, the third peeling roller 302c is moved by the peeling roller pressing motor 929c so as to come into contact with the paper holding drum 601 (step 8-4-2), and the processing liquid is processed. The toner is peeled off and removed from the transfer paper 10 at the interface portion where 20 has penetrated.

After performing the above-described peeling process, the process returns to step 8-5 in FIG. 12, and the unremoved toner image remaining on the transfer paper 10 is detected by the CCD sensor 603a. Here, the detection data obtained by the CCD sensor 603a indicates that the ratio of the remaining image area of the unremoved toner image is a predetermined control reference value a%.
It is determined whether it is the following (step 8-6). N
In the case of O, it is determined whether or not the above-described liquid application processing and peeling processing have been performed three times or more (step 8-7). In the case of NO in step 8-7, after the liquid applying process is further executed, the peeling process is repeated according to the flowchart of FIG. Thus, the toner on the transfer paper 10 can be completely removed while minimizing the damage on the surface of the transfer paper 10 without peeling the fibers on the surface of the transfer paper 10 together with the toner from the transfer paper 10. Become.

On the other hand, if the result of step 8-7 is YES, that is, if the toner image having a fixed area cannot be peeled even after the above-described liquid application processing and peeling processing are repeated a predetermined number of times, the unremoved toner image is detected by the CCD sensor 603a. The detected data is written into the RAM 919 and used for operation control of the mark forming unit 30, the sorting unit 40, and the like. Then, the solenoid 926 is turned off, the clamp pawl 602 is opened, the transfer paper 10 is released, separated from the paper holding drum 601, dried by the drying unit 4 (steps 8-8, 9), and sent to the separation unit 40. Can be In the sorting unit 40, the position of the deflecting claw 41 is switched based on the CCD sensor 603a so that the transfer paper 10b in which the unremoved toner image having a certain area or more remains is transported into the guide plate 42b. Thereby, the transfer paper 10b
Is discharged onto a transfer paper discharge tray 501b that cannot be reused (step 8-10).

If the determination in step 8-6 is YES, that is, if the remaining image area is less than a%, the clamp pawl 602 is opened and the transfer sheet 1 is opened in the same manner as in steps 8-8 and 9 described above.
0 is released and separated from the paper holding drum 601, and dried by the drying unit 4 (steps 8-11 and 8-12).

Next, the transfer paper 1 is
A processing status mark corresponding to the number of reuses is given to 0 (step 8-13). As the mark forming unit, the above-described punching unit, printing unit, printer unit and the like are used. When the punching unit is used, the CCD sensor 603a detects whether or not there is a punch, and if there is a punch, the punch sensor is controlled to punch, for example, next to the punch. When the printing unit is used, for example, the CCD sensor 603a detects whether or not there are 〇, ×, etc. already printed on the leading end of the transfer paper 10, and when the 〇, × marks are present, For example, control is performed so as to print next to it. Further, the color of the processing status mark may be changed according to the number of reuses. For example,
Number of reuses 1, 2, 3, 4. . Red, blue, yellow,
Green. . When a red processing status mark is detected by the CCD sensor 603a, control is performed so as to form a blue processing status mark on the mark. This processing status mark is used in the next toner removal processing as data indicating the state of the transfer paper 10.

Then, the transfer paper 10 with the processing status mark is sent to the sorting unit 40. In the sorting unit 40, based on the CCD sensor 603a, the transfer paper 10 in which an unremoved toner image having a certain area or more does not remain.
The position of the deflecting claw 41 is switched so as to convey a into the guide plate 42a. As a result, the transfer paper 10a is discharged to the reusable transfer paper discharge tray 501a (step 8-14). Here, the discharge level sensor 505
Detects the transfer paper 10a discharged onto the discharge tray 501a and sends data indicating that there is a paper through the parallel interface 908.
31 is operated to lower the paper discharge tray 501a. This lowering operation continues until the input from the paper discharge level sensor 505 reaches a value corresponding to the absence of paper, and the height of the paper on the paper discharge tray 501a is constant even if the stack amount is large. A stable paper discharging operation is performed.

As described above, according to this embodiment, the number of reuses indicated by the processing status mark on the transfer paper 10 is detected by the transfer paper state sensor 105, and the detected data is compared with the limit value, which is the above control reference value. However, when it is determined that the number of reuses exceeds the limit, the transfer paper 10 is discharged separately from the reusable transfer paper.
0 can be reused so as not to be used in a copying machine or the like, and occurrence of a jam in the copying machine or the like can be prevented.

Further, according to the present control example, when it is determined that the toner removal processing cannot be performed because the number of reuses exceeds the limit value, control is performed to inhibit the toner removal processing. Execution can be prevented.

Further, according to the present embodiment, by using the mark forming unit 30, the processing status of the toner removing process after the toner removing process, for example, a process status mark indicating the number of reuses of the transfer paper 10 is used. In the next toner removal process of the transfer paper 10, the process status mark can be detected to accurately grasp the process status of the transfer paper 10, and the information of the process status can be It can be used for control such as changing the setting of the process conditions of the removal processing.

The control based on the processing status mark in the above embodiment can also be performed as follows. FIG.
FIG. 4 is a flowchart of another control example based on the processing status mark. In this control example, a processing status mark on the transfer paper 10 is detected, and control is performed to change the setting of the liquid application condition and the peeling condition based on the detection result of the number of reuses indicated by the mark. In addition, as the peeling roller, a second peeling roller 302b having an intermediate adhesive force to the toner on the transfer paper 10 is used.

First, the transfer paper 10 fed from the paper feed unit 1 is detected by the transfer paper state sensor 105 as a processing status mark indicating the number of reuses on the transfer paper 10, and whether or not the transfer paper is the reused paper. It is determined whether or not it is (steps 1 and 2).
If the transfer paper 10 is reused paper, the detection data of the number of reuses is further compared with a predetermined control reference number (step 3). Here, if the transfer paper 10 contains a large amount of the permeation-promoting liquid 21 such as the surfactant, the toner is difficult to ride and easily peels off during reuse, and if the number of times is less than the reference number, the transfer paper 10 is not damaged. And the application roller 2
At 07a, the permeation enhancer 21 is applied less than usual, while if it is equal to or greater than the reference number, it is determined that the transfer paper 10 is damaged, and the permeation enhancer 21 is not applied (steps 4 and 5). Then, in order to lower the peeling efficiency at the time of peeling and not to damage the fibers on the surface of the transfer paper, the set values of the pressing amount and the heating temperature of the peeling roller 302b are set lower than normal values, and The set value is raised from the normal value (step 6).

Next, after the treatment liquid 20 is applied, a toner peeling process is performed under the above set conditions, and the CCD sensor 60
At 3a, an unremoved toner image remaining on the transfer paper 10 is detected (steps 7 to 9). Here, the CCD sensor 603a
It is determined whether or not the toner image on the transfer paper 10 has been completely removed based on the detection data (step 10).
If NO, steps 7 to 9 are repeated.
Thus, the toner on the transfer paper 10 can be completely removed while the damage on the surface of the transfer paper 10 is minimized without peeling the fibers on the surface of the transfer paper 10 together with the toner from the transfer paper 10. become.

On the other hand, if it is determined in step 2 that the transfer paper 10 is not reused paper, the permeation promoting liquid 21 and the processing liquid 20 are applied in normal amounts, and then the pressure of the peeling roller 302b and the heating temperature are increased. , And the rotation speed of the paper holding drum 601 is set to a normal value (steps 11 and 12). Then, a toner peeling process is executed, and an unremoved toner image remaining on the transfer paper 10 is detected by the CCD sensor 603a (steps 13 and 14). Here, it is determined whether or not the toner image on the transfer paper 10 has been completely removed based on the data detected by the CCD sensor 603a (step 15). NO
In the case of the above, steps 12 to 14 are repeated.
Thus, the toner on the transfer paper 10 can be completely removed while the damage on the surface of the transfer paper 10 is minimized without peeling the fibers on the surface of the transfer paper 10 together with the toner from the transfer paper 10. become.

Next, after the toner image is completely removed,
The transfer paper 10 is released from the clamp claws 602, separated from the paper holding drum 601, and then dried by the drying unit 4 (step 16). Then, the processing status mark corresponding to the number of reuses is transferred to the transfer paper 1 by the mark forming unit 30.
Transfer paper 10 with a processing status mark added to 0
Is sent to the sorting unit 40, and is discharged to a discharge tray 501a for reusable transfer paper (step 17).

In step 3 of the control shown in FIG. 14, when it is determined from the detection data of the number of reuses that the transfer paper 10 is damaged, the penetration promoting liquid 2 such as a surfactant is used.
In this case, only the treatment liquid 20 such as water was applied without applying 1, and the pressure amount and the heating temperature of the peeling roller 302 to be used were made lower than usual values, and the rotation speed of the paper holding drum 601 was made higher than usual values. Under the conditions, the liquid applying process and the peeling process are performed. In addition to this, if it is determined that the transfer paper 10 is damaged, the upper and lower drying rollers are used to suppress the fluff on the surface of the transfer paper during drying. Control may be performed so that the pressing process between the 402 and 404 is set stronger than usual and the drying step is performed.
In addition, control may be performed so that a peeling roller having a small adhesion ability to the softened toner on the transfer paper 10 is selected and used. Further, when it is determined that the transfer paper 10 is damaged, the liquid application condition, the peeling condition, and the paper holding drum 601 are determined.
The setting changes such as the driving conditions and the drying conditions may be performed alone or in combination as appropriate.

As described above, according to this control example, the number of reuses indicated by the processing status mark on the transfer paper 10 is detected by the transfer paper state sensor 105, and the detected data is compared with the control reference value. If the number of uses exceeds the reference value,
Since the transfer paper 10 is determined to be damaged, the application of the penetration promoting liquid 21 is restricted, and the peeling efficiency in the toner peeling process is reduced, so that the transfer paper 10 can be reused without damaging the fibers on the transfer paper surface. Can be extended.

In the above embodiment, instead of or in addition to the number of reuses of the transfer paper 10, the process conditions for the toner removal processing, for example, the conditions for applying the penetration enhancing liquid 21 and the processing liquid 20, the type of peeling roller, Information such as other peeling conditions (number of times of peeling treatment, peeling speed, heating temperature, peeling density, etc.), drying time, pressing force of the drying roller, etc. can be included in the processing status mark.

In the above embodiment, the number of reuses indicated by the processing status mark on the transfer paper 10 is detected by the transfer paper state sensor 105, and the process condition of the next toner removal processing is determined based on the detected data. Although changed, the processing status mark may be used when the transfer paper 10 is reused, that is, when the process conditions are changed when an image is formed on the reused transfer paper. For example, when an image is formed on a reusable transfer paper from which toner has been removed by an electrophotographic image forming apparatus, the transfer paper 10 is hard to be charged, and therefore, when the toner is transferred from the photoconductor to the transfer paper. Transfer failure may occur. Therefore, the number of reuses indicated by the processing status mark on the transfer paper is detected by the transfer paper state sensor, and the charge capacity at the time of image transfer is increased in accordance with the number of reuses indicated by the detected data. May be changed.

In the above embodiment, the transfer paper 10
The transfer paper state sensor 105 detects the number of reuses indicated by the processing status mark above, and determines the degree of damage to the transfer paper 10. It may be configured to detect the surface state, determine the degree of damage to the transfer paper 10 based on the detection data, and control the process conditions.

In the above embodiment, the present invention is applied to the transfer paper 10 on which an image is formed by a transfer type electrophotographic copying machine. However, the present invention is applicable to other image forming apparatuses such as a facsimile, a printer, and a printing machine. The present invention can also be applied to an image carrier such as a 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 capable of forming an image. The image carrier to which the present invention can be applied 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, after the treatment liquid 20 is applied to the transfer paper 10, the toner on the transfer paper 10 is peeled off by the peeling roller 302 and removed. The present invention is applicable to an image forming substance removing device such as a toner removing device that removes toner without applying the toner or a toner removing device that removes toner by scraping toner on the transfer paper 10 without using a peeling roller. is there. Further, the present invention is not limited to the case where the image forming substance is a toner, but can be applied to a case where the image forming substance is another image forming substance such as ink.

[0129]

[0130]

[0131]

According to the invention 請 Motomeko 1 to 3 according to the present invention, by the control means, based on the detection result of the surface condition of the processing status mark or image holding member is formed on the image carrier, the The degree of close contact between the image forming material on the image carrier and the peeling member, the degree of softening of the image forming material by the softening means, or the moving speed of the image carrier during the process of removing the image forming material is controlled. By this control, the degree of close contact, the degree of softening of the image forming substance, or the moving speed of the image holding member can be set so as to minimize damage to the image holding member. There is an effect that the reuse life can be extended.

[0132] According to the invention of 請 Motomeko 4, by the control means, based on the detection result of the surface condition of the processing status mark or image holding member is formed on the image carrier, the permeability enhancer Control the application means. By this control, whether or not the penetration enhancer can be applied and the amount of the application can be set so as to minimize damage to the image carrier, and the reuse life of the image carrier can be extended. This has the effect.

[0133]

[0134] According to the invention of 請 Motomeko 5, based on the detection result of the surface condition of the processing status mark or image holding member is detected by said detecting means, the control of such process conditions of the image forming substance removing treatment In addition to the above, the processing status mark giving means gives a processing status mark indicating the processing status of the image forming substance removal to the image carrier . Since the newly provided processing status mark can be used for controlling the process conditions and the like of the next image forming substance removing process, the reuse life of the image carrier can be extended as described above. This has the effect that the occurrence of a jam in the image forming apparatus can be prevented beforehand.

[0135] According to the invention of 請 Motomeko 6, the detected processing state mark different positions in the detection unit, by applying the following processing status mark, without erasing the processing status marks the next new In the case where the processing status mark is formed, the processing status mark is not overlapped with the processing status mark, and the processing status mark can be accurately detected.

[0136] According to the invention of 請 Motomeko 7, the central portion of the image carrier by applying the processing status mark,
The detection position for detecting the processing status mark is fixed at one place,
Since the processing status mark can always be detected at this detection position, there is an effect that the configuration of the processing status mark detecting means is simplified.

[0137] According to the invention of 請 Motomeko 8, as the process status mark, by using a mark consisting of an image forming substance having magnetism, as detection means for detecting a processing state mark small, such as a magnetic sensor Since a sensor can be used, there is an effect that the size of the device can be reduced.

[0138] According to the invention of 請 Motomeko 9, as the process status mark, by using a mark consisting of hard color image forming substance in the visible, the processing state mark is not noticeable during reuse of the image carrier Therefore, when a new image is formed on the image carrier, there is an effect that the processing status mark does not hinder the image and lowers the image quality.

[0139] According to the invention of 請 Motomeko 1 0, as the process status mark, color image forming substance of which is not reproduced on the image carrier by the image forming apparatus for reproducing an image of a specific color of the original on the image carrier In the case where the image carrier is reused to form an image by using the mark consisting of, and the image of the image carrier is further reproduced and formed on another image carrier, the processing status There is an effect that accurate image formation can be performed without a mark being formed together with the image and becoming a part of the image.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a schematic configuration of a toner removing device according to an embodiment.

FIG. 2 is a block diagram of an electrical unit of the toner removing device.

FIG. 3A is a front view of a perforation unit used in the toner removing device. (B) is a perspective view of the perforation unit.

FIG. 4 is an explanatory diagram showing an arrangement of a printing unit and a transfer paper state sensor used in the toner removing device.

FIG. 5 is a perspective view of a printing unit used in the toner removing device.

FIG. 6 is a perspective view of a printing unit according to a modification.

FIG. 7 is a schematic configuration diagram of a printer unit used in the toner removing device.

FIG. 8 is a perspective view of a transfer sheet on which a barcode is formed.

FIG. 9 is a schematic configuration diagram showing a configuration example of a transfer paper state sensor used in the toner removing device.

FIG. 10 is a schematic configuration diagram of a transfer paper state sensor according to a modification.

FIG. 11 is a flowchart of a control example of the toner removing device.

FIG. 12 is a sub-flowchart showing a toner removal processing mode of the flowchart.

FIG. 13 is a sub-flowchart showing a toner peeling process of the sub-flowchart.

FIG. 14 is a flowchart of another control example of the toner removing device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 paper feed unit 4 drying unit 5 paper receiving unit 6 liquid applying unit and toner peeling unit 9 control unit 10 transfer paper 20 processing liquid 21 penetration promoting liquid 30 processing status mark forming unit 40 sorting unit 105 transfer paper state sensor

──────────────────────────────────────────────────続 き Continued on the front page (72) Yoshiaki Miyashita 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. (72) Ryo Kei Shingu 1-3-6 Nakamagome, Ota-ku, Tokyo Ricoh Co., Ltd. (72) Shinichi Kuramoto, inventor 1-3-6 Nakamagome, Ota-ku, Tokyo Intracorporation Ricoh (72) Yoichi Asaba 1-3-6, Nakamagome, Ota-ku, Tokyo Inside Ricoh Company, Ltd. (72) Inventor Kiyoshi Tanikawa 1-3-6 Nakamagome, Ota-ku, Tokyo Stock Company Ricoh Company (72) Sadao Takahashi 1-3-6 Nakamagome, Ota-ku, Tokyo Stock Company In Ricoh Company (72) Inventor Yoshiyuki Kimura 1-3-6 Nakamagome, Ota-ku, Tokyo Stock Company Ricoh (72) Inventor Kazuhiro Ando 1-3-6 Nakamagome, Ota-ku, Tokyo Stock Company Inside the Ko (72) Inventor Tadashi Saito 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd. (56) References JP-A-5-2356 (JP, A) JP-A-4-118500 (JP) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03G 21/00 570-578 G03G 21/00

Claims (10)

(57) [Claims] An image forming material on an image carrier is closely contacted with a peeling member.
Then, the image forming substance is peeled off from the image holding member and removed.
Comprising peeling means that, in the image forming substance removing apparatus of an image forming material of the image formed on the image holding member from the image carrier is removed from the image holding member, before the processing of said image forming substance removed, A processing status mark for displaying the processing status of the removal of the image forming substance formed on the image carrier, or detecting means for detecting the surface condition of the image carrier; and the processing status mark or the surface condition of the image carrier. Based on the detection result, the image forming substance on the image carrier and the peeling member
Image forming substance removing apparatus from the image carrier, characterized in that a control means for controlling the closeness of. 2. A peeling member is closely attached to an image forming substance on an image carrier.
Then, the image forming substance is peeled off from the image holding member and removed.
Comprising peeling means that, in the image forming substance removing apparatus of an image forming material of the image formed on the image holding member from the image carrier is removed from the image holding member, or contact該剥release member is in contact Image carrier just before
A softening means for softening the image forming substance attached to the image forming apparatus, and a processing status mark for displaying a processing status of the image forming substance formed on the image carrier before the image forming substance removing processing, or Detecting means for detecting the surface state of the image carrier; and controlling the degree of softening of the image forming material by the softening means based on the processing status mark or the detection result of the surface state of the image carrier. An apparatus for removing an image forming substance from an image carrier, comprising a control unit. 3. The image forming apparatus according to claim 1, further comprising a peeling unit for bringing the peeling member into close contact with the image forming material on the image carrier and peeling and removing the image forming material from the image carrier. Image
In an apparatus for removing an image-forming substance from an image-holding body, which removes the image-forming substance from the image-holding body, the image-forming substance is formed on the image-holding body before the image-forming substance removing process.
Status indicator to show the status of the process
Click, or detection means for detecting the surface state of the image holding member, on the basis of the detection result of the surface state of the processing status mark or image carrier, the movement of the image carrier during the processing of said image forming substance removed
Image forming substance removing apparatus from the image <br/> carrier you characterized in that a control means for controlling the speed. (4)An image in which the image forming substance is stably attached to the surface
Making the state of adhesion between the holder and the image forming substance unstable
Permeability to promote penetration of the destabilizing agent into the image carrier
Means for imparting a penetration enhancer for imparting an accelerator to the image carrier
Destabilizing the image carrier to which the penetration enhancer has been applied.
Means for providing a destabilizing agent for providing an agent;
GivenThe release member is brought into close contact with the image forming substance on the image carrier.
To remove the image forming substance from the image carrier by peeling.
Separation meansWhenEquippedStatueApparatus for removing image forming substance from holder
AndFormed on the image carrier prior to the image forming substance removal process.
Status indicator to show the status of the process
Detection means for detecting the surface state of the image carrier,  Detection result of the processing status mark or the surface state of the image carrier
On the basis of the,A control means for controlling the means for imparting penetration enhancer
With stepsCharacterized byStatueImage formation from holder
Quality removal equipment. 5. Image formation of an image formed on an image carrier
In an apparatus for removing an image forming substance from an image carrier, which removes a substance from the image carrier, the image forming substance is formed on the image carrier before the image forming substance removing process.
Status indicator to show the status of the process
Detecting means for detecting a surface state of the image carrier, or a processing status mark for forming the processing status mark on the image carrier.
Image forming substance removing apparatus from the image carrier you characterized by providing a click forming means. 6. A processing status mark detected by said detecting means.
6. The apparatus according to claim 5 , wherein a next processing status mark is formed at a position different from the mark . 7. The processing status mark is provided at the center of the image holding member.
The apparatus for removing an image forming substance from an image carrier according to claim 5, wherein an image forming substance is formed. 8. The processing status mark has magnetism.
A contract using a mark made of an image forming substance.
An apparatus for removing an image forming substance from an image carrier according to claim 5 . 9. The processing status mark is invisible.
6. An apparatus according to claim 5 , wherein said mark comprises a color image forming substance . 10. An original document is specified as the processing status mark.
An image forming device that reproduces color images on an image carrier
Markers made of image-forming substance of a color that cannot be reproduced on the image carrier
6. The apparatus for removing an image forming substance from an image carrier according to claim 5, wherein a device is used.