JP3854758B2 - Recording material playback device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording material reproducing apparatus that removes an image forming substance from a recording material and reproduces the recording material in a reusable state, and more specifically, is provided in a recording material reproducing apparatus. The present invention relates to a technique for preventing an image forming material removed from a belt-like peeling member (belt) by a cleaning means from scattering into the apparatus.
[0002]
[Prior art]
With recent OA, printer paper and copy paper have been used in large quantities. Along with this, a large amount of paper is generated from the office, and most of this is wasted. The disposal of this waste paper is very expensive, and the disposal of these papers can lead to a deterioration of the local environment and, consequently, the global environment due to deforestation to produce paper. Is taken up as a big problem.
[0003]
Conventionally, in order to solve this problem and to recycle the paper, the paper once used has been subjected to a treatment for removing the ink on the paper, making it again, and using it as recycled used paper. This procedure required a large-scale waste paper recycling facility and had to go through a number of processes such as sorting, collecting, and transporting used paper before it was obtained.
[0004]
Recently, paper has been developed in which a character image on paper once used can be removed by cleaning and reused for copying or printing. For example, Japanese Patent Laid-Open No. 4-67043 discloses a sheet-like sheet. There is disclosed a method in which a release treatment is performed on the surface of a support, and the release-treated support is marked to be distinguished from plain paper. However, since this is a special paper, it has difficulty in fixing, and has a problem when used as a general copy paper.
[0005]
Further, for example, in JP-A-1-101576 and JP-A-1-101777, an image-forming substance (toner) on an image-forming support is subjected to ultrasonic treatment in an organic solvent in which it is dissolved. A method for removing an image is disclosed. However, there are problems with pollution, ignition and toxicity due to organic solvents, and there are still problems with using this method in general offices and homes.
[0006]
Further, JP-A-1-297294 uses an image forming support made of plastic, metal, poorly liquid-permeable paper or ceramic, and heats the image formed on the support. A cleaning method is disclosed in which an image is peeled off from a support by heating with a meltable peeling member interposed therebetween. However, in the case of this method, special paper whose surface is subjected to a release treatment has to be used, and there is a problem in general use.
[0007]
On the other hand, the present applicant, for example, in Japanese Patent Application No. 5-202557 and Japanese Patent Application No. 5-96619, has a recording material provided with a liquid-swelled layer at least in the vicinity of the surface on which an image is formed. And a liquid (image removal accelerating liquid) containing water that causes the swelling layer of the recording material to swell larger than the film-form image forming substance that forms the image is applied to the recording material. A recording material reproducing apparatus relating to an image forming substance removing method and a reproducing method in which the recording material is pressed against a belt or heated and pressed to transfer and peel the image forming substance from the recording material to the belt is proposed. By this method, it was confirmed that the image forming substance can be removed from the recording material and the recording material can be reproduced again to be usable.
[0008]
The present applicant has also proposed a reproducing method and reproducing apparatus for a recording material capable of removing an image forming substance on the recording material without applying the image removal accelerating liquid. In these reproducing apparatuses, it is necessary to provide a cleaning means for removing the image forming material peeled and transferred to the belt and making the surface state capable of being peeled and transferred again.
[0009]
In view of this, the applicant of the present invention disclosed in Japanese Patent Application Laid-Open No. 8-333512 as a cleaning means, a roller-shaped cleaning member (roller-shaped cutter member) having a spiral edge abutting on the surface of the belt on the outer periphery, and the cleaning device. An image forming substance removing device (recording material reproducing device) provided with a driving means for rotationally driving the member is proposed, and this roller-shaped blade member is used in JP-A-9-212049. Various cleaning conditions (contact pressure, relative speed, etc.) are presented.
[0010]
In the recording material reproducing apparatus previously proposed by the present applicant, the image forming substance (waste image forming substance) removed by the cleaning member is partly powder and partly a lump. The removed waste image forming material is stored in a waste image forming material recovery container and discarded, but a part of the powder is scattered from the cleaning means and floats inside the reproduction apparatus, and the surface of each component constituting the device It will stick to. In order to prevent this inconvenience, the present applicant has proposed, for example, a mechanism in which the waste image forming material is not scattered when the waste image forming material collection container is attached and detached in Japanese Patent Laid-Open No. 9-204128, By these mechanisms, it was possible to reduce the amount of waste image forming material adhering to the apparatus components.
[0011]
[Problems to be solved by the invention]
  However, in the mechanism as described above,When the image forming material (waste image forming material) removed by the cleaning member is reattached to the belt (peeling member), the image forming material adheres to the surface of the regenerated recording material and contaminates it. It will degrade the quality.
[0013]
  The present invention has been made in consideration of the above situation.In addition, the image forming material removed from the peeling member by the cleaning member may be prevented from reattaching to the peeling member.The present invention has been made for the purpose of providing a possible recording material reproducing apparatus.
[0014]
[Means for Solving the Problems]
ContractIn the invention of claim 1, the sheet-like recording material on which the image forming substance is formed into a film and the belt-like peeling member that peels and transfers the image forming substance from the recording material are conveyed in contact with each other. In the process, the image forming substance is peeled and transferred from the recording material to the peeling member, and the peeled and transferred image forming substance is removed.By cleaning memberIn a recording material reproducing apparatus having a cleaning device for removing from the peeling member,The cleaning device includes a removing member that removes an image forming substance from the peeling member in a state in contact with both the front and back surfaces of the peeling member on the downstream side in the moving direction of the peeling member of the cleaning member.It is characterized by that.
[0016]
  ContractClaim2In the invention of claim1In the invention, the removing member is formed of a woven fabric or a non-woven fabric.
[0017]
  Claim3In the invention of claim1In the invention, the removing member is constituted by a blade made of an elastic body.
[0018]
  Claim4In the present invention, claims 1 to3In any one of the inventions,Cleaning device,TheIt has a pressure reducing means for lowering the pressure inside the cleaning device to be lower than the pressure outside the cleaning device.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 3 is a block diagram of a main part for explaining an example of a recording material reproducing apparatus to which the present invention is applied. The recording material 1 on which an image is formed by electrophotography or the like and is no longer needed is manually inserted into the paper feed roller 3 along the guide plate 2. When it is detected by a recording material sensor (not shown) that the recording material 1 is inserted into the reproducing device 61, the paper feed roller 3 is driven and rotated by a driving device (not shown). It operates so as to convey the recording material 1 to the liquid supply unit.
[0020]
The liquid supply unit includes an image removal promotion liquid container 13 for holding the image removal promotion liquid 11 therein, an image removal promotion liquid application roller 12, a squeeze roller 15, and a recording material pressing roller 14. ing. The image removal accelerating liquid application roller 12 is constituted by, for example, a so-called gravure roller having a large number of holes on the surface thereof, so that the amount of liquid retained on the surface can be changed by changing the size and depth of the holes. Can be changed. That is, a part of the image removal accelerating liquid application roller 12 is arranged so as to be immersed in the liquid as shown in FIG. 3, and the linear velocity of the paper feed roller 3 is set by a drive system (not shown). It is rotated in the same direction as the conveyance of the recording material 1 so as to be equal.
[0021]
Excess liquid adhering to the image removal accelerating liquid application roller 12 is removed from the image removal accelerating liquid application roller 12 by a squeeze roller 15 driven by the image removal acceleration liquid application roller 12. The image removal accelerating liquid application roller 12 applies the image removal accelerating liquid 11 to the recording material 1 by contacting the recording material 1. The recording material pressing roller 14 is, for example, a disk having a protrusion like a spur on its circumference, and is configured to press only the end portion of the recording material 1 toward the image removal promoting liquid application roller 12. Yes. When a roller having a smooth surface is used as the recording material pressing roller 14, the image removal accelerating liquid 11 is liable to adhere to the back surface (the surface where no image is formed) of the recording material 1. Therefore, the amount of the image removal accelerating liquid 11 applied to the recording material 1 is adjusted and applied so as not to be absorbed by the swelling layer of the recording material 1.
[0022]
The peeling / transfer section is provided with a heater 22 such as a halogen lamp inside, and a metal heating drum 21 that can be heated, an inlet roller 23, a separation roller 24, a tension roller 25, and a cleaning. An endless shape provided so as to inscribe the back-up roller 26, the metal pressure roller 27 whose surface is covered with an elastic member such as silicon rubber, and the rollers 23, 24, 25, 26, 27 Belt 28. The heating drum 21 is rotated in the direction of arrow A by driving means (not shown). Pressure is applied between the pressure roller 27 and the drum heating 21 by an urging means (not shown) such as a spring or hydraulic pressure, and a nip is formed between the roller 27 and the drum 21. Has been. The tension roller 25 is configured to apply tension to the belt 28 by a biasing means (not shown) such as a spring or hydraulic pressure.
[0023]
The belt 28 is a peeling member for peeling and transferring the image forming substance from the recording material 1 and is selected to have high adhesiveness with the image forming substance. In order to prevent evaporation of the components of the accelerating liquid 11, a characteristic that does not allow vapor transmission of the components of the image removal accelerating liquid 11 is also required.
[0024]
Specific examples of the belt 28 include, for example, synthetic rubber such as isoprene rubber, neoprene rubber, chloroprene rubber, silicon rubber, butadiene rubber, and fluorine rubber; natural rubber; epoxy resin such as bisphenol / epichlorohydrin condensate; alkyd resin, urea Amino resins such as formaldehyde resin, butylurea formaldehyde resin, butylated melamine formaldehyde resin, benzoguanamine formaldehyde resin; phenolic thermosetting resins such as terpene phenol resin, phenol ether resin, phenol resin; polyvinyl chloride, polyvinylidene chloride, vinylidene chloride -Acrylonitrile copolymer, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, ethylene-tetrafluoroethylene copolymer, polyvinyl fluoride Den, vinyl copolymers Vinyl polymers such as polyvinyl butyral, polyvinyl formal, polypropylene, and polyethylene; acrylic resins such as polybutyl acrylate, polymethacrylic acid, and polymethyl methacrylate; polyimide, 6,6-nylon, 6-nylon, etc. Polyamides of polycarbonate; Polyesters such as polycarbonate, polyethersulfone, polyetheretherketone, polyethylene terephthalate, polyethylene naphthalate, aromatic polyester; thermoplastic or thermosetting synthetic resins such as polyphenylene sulfide, polyparabalic acid, polyethernitrile, and aramid Metals such as nickel, stainless steel and aluminum and oxides thereof; ceramic materials and the like.
[0025]
These materials can be used alone, but can also be used in combination by laminating, alloying, or adding other additives such as glass fiber, whisker, carbon, silica, and titanium oxide. The optimum belt material should be selected according to the type of image forming substance to be peeled off and the image forming substance removing process. However, the repeated use of the belt is advantageous in various points such as lowering the regeneration cost, In that case, relatively high heat resistance and surface stability are required.
[0026]
Examples of belts preferred from the image removal characteristics and durability include polyethylene terephthalate, polyethylene naphthalate, polyetheretherketone, polyphenylene sulfide, polyparabalic acid, polyethernitrile, aramid, polyimide, polyetherimide, stainless steel, nickel, Anodized.
[0027]
The recording material 1 to which the image removal accelerating liquid 11 is applied to the image forming surface by the liquid supply unit is inserted between the heating drum 21 and the belt 28 in the vicinity of the entrance roller 23, and the image holding surface of the recording material 1. And the belt 28 are overlapped. The recording material 1 having the excessive image removal accelerating liquid 11 on the surface is heated by the heating drum 21 in the path from the entrance roller 23 to the separation roller 24. In this heating, the image removal accelerating liquid 11 is absorbed by the swelling layer located in the lower layer of the image forming substance formed in a film shape, and the adhesive force between the image forming substance and the recording material 1 is reduced. Since the adhesive force between the image forming material and the recording material 1 is significantly reduced, it is easy to remove the image forming material from the recording material 1, and the image forming material can be removed at high speed. Become.
[0028]
Further, by heating as described above, even when there is a black image with a large area, the image forming substance can be easily removed. Further, even when a solid image has no holes and a nearly complete film is formed, the image-forming substance can be removed. Therefore, it is possible to remove images recorded with various commercially available image forming apparatuses and images recorded with various patterns.
[0029]
The longer the heating path length, the greater the effect, but it is difficult to completely prevent evaporation of the image removal accelerating liquid 11, and therefore it is preferable to set the heating path length in the range of 10 to 1000 mm. Further, the path length should be appropriately selected depending on the desired processing speed, the nature of the image forming substance to be removed, and the adhesion state of the image forming substance to the recording material 1. When processing a commonly used electrophotographic image at a linear velocity of 10 to 120 mm / sec, it is particularly preferable that the path length is set to 20 to 250 mm.
[0030]
In the peeling portion, the image forming substance formed on the recording material 1 is heated by the heating drum 21 and before reaching the pressure roller 27, the heater 22 of the heating drum 21 reaches a temperature not lower than the softening point. ON / OFF is controlled. The heating temperature should be selected at an appropriate level according to the temperature characteristic of the tackiness of the image forming material to be used. In the case of using a general electrophotographic dry toner, the temperature is preferably 60 to 130 ° C., and particularly preferably set so that the recording material 1 is heated to 70 to 110 ° C.
[0031]
If the temperature is lower than this temperature range, the fluidity of the image forming substance is insufficient, so that the image forming substance does not sufficiently adhere to the belt 28, and peeling and transfer of the image forming substance are difficult to occur. If the temperature is higher than this temperature range, the fluidity of the image forming material becomes too high, and cohesive failure occurs inside the image forming material when the recording material 1 and the belt 28 are separated. It becomes difficult to completely remove the image forming substance. When appropriate fluidity is generated in the image forming material, the image forming material and the belt 28 are pressurized by the pressure roller 27, whereby an adhesive force is generated between the image forming material and the belt 28.
[0032]
The belt 28 and the recording material 1 are separated in the vicinity of the separation roller 24. This is because the belt 28 is conveyed along the separation roller 24 while the recording material 1 tends to advance in a linear direction due to its rigidity. The recording material 1 from which the image forming substance has been removed in the peeling / transfer section is separated from the belt 28 and then discharged to the discharge sheet tray 46 by the discharge sheet rollers 42 and 43 and stocked.
[0033]
The discharged sheet / guide plate 44 is made of a soft material having at least a liquid absorptivity such as felt, cloth, sponge, etc. and not damaging the surface of the recording material 1. Excess image removal promoting liquid 11 is absorbed by the guide plate 44. When the excessive image removal accelerating liquid 11 is extremely large, a heater can be provided on the guide plate 44 to dry the surface member. Further, when the recording material 1 passes through the discharge sheet / guide plate 44, the recording material 1 slides on the guide plate 44. At this time, dirt remaining on the surface of the recording material 1 is removed. Thus, the pressure contact force between the guide plate 44 and the discharge sheet rollers 42 and 43 is adjusted by a pressurizing means (not shown).
[0034]
Specific examples of remaining dirt are images and fingerprints recorded with writing instruments such as sign pens, pencils, and ballpoint pens. When removing dirt on the back surface of the recording material 1, the surface of the discharge sheet rollers 42, 43 has a liquid absorptivity like felt, cloth, sponge, etc., like the discharge sheet guide plate 44. The roller 42 and 43 are driven so that the circumferential speed of the rollers is different, and the rollers 42, 43 are made of a soft material that does not damage the surface of the recording material 1. It is preferable that the back surface side of the recording material 1 is also rubbed with the surface 43. It is preferable that members such as felt, cloth, and sponge on the surface of the guide plate 44 are configured so as to be easily attached and detached so that they can be easily replaced when dirty.
[0035]
In the image forming substance peeling / transferring section, the image forming substance of the recording material 1 is transferred to the belt 28, but the image forming substance on the belt 28 is removed by a roller-shaped blade member 31 serving as a cleaning unit, The belt 28 is used repeatedly. The cleaning device will be described later.
[0036]
The image removal promoting liquid 11 may spill out of the container 13 when the reproducing apparatus 61 is tilted when the reproducing apparatus 61 is transported. In the reproducing apparatus 61 shown in FIG. The absorption pad 51 is disposed at the bottom of the playback device 61, which is a position corresponding to the bottom of the container 13. The liquid absorbing pad 51 containing a gelling agent is small and light, and can absorb a large amount of liquid. Therefore, by disposing the liquid absorbing pad 51, an outer container for receiving spilled liquid is provided. Thus, it is possible to realize an inexpensive and small reproduction apparatus 61. The amount that the gelling agent can absorb depends greatly on the components of the liquid. Since the image removal accelerating liquid 11 used in the reproducing method of the recording material 1 in the example shown in FIG. 3 is almost composed of water, the absorption amount of the gelling agent is large. In the recording material reproducing apparatus 61 in the example shown, it is effective to use a liquid absorbing pad containing a gelling agent.
[0037]
As described above, in the example shown in FIG. 3, the recording material 1 is manually inserted into the paper feed roller 3 along the guide plate 2. If the front and back sides are mistaken during this insertion, there is a high risk that the heated and softened image forming substance will adhere to the heating drum 21. When the recording material 1 adheres to the heating drum 21, the recording material 1 in the vicinity of the separation roller 24 is not separated from the heating drum 21, and a jam occurs. In order to prevent such trouble, it is also possible to prevent adhesion by providing a layer of a material that is difficult to adhere to the image removal accelerating liquid 11 such as a fluorine-based material such as polytetrafluoroethylene on the surface of the heating drum 21. It is valid.
[0038]
However, if the front and back sides are mistaken, as shown in FIG. 3, in an apparatus that can remove only one side of the image, the image cannot be removed. Therefore, in order to regenerate the sheet, the sheet is discharged to the discharge sheet tray 46. It is necessary to insert the recorded material 1 again into the reproducing device 61, which is not preferable. The occurrence of this problem can be prevented to some extent by making the surface of the guide plate 2 that contacts the recording material 1 white or light. In the case of the translucent recording material 1, since the visibility of the image recorded on the recording material 1 becomes remarkably high when the recording material 1 has a white or light color under the recording material 1, the recording material 1 is recorded. This is because the operator can easily recognize the front and back of the recording material 1 from the recorded image.
[0039]
Further, when a sheet having a swelling layer on the surface is used as the recording material 1, when the sheet is inserted into the reproducing device 61, the adhesive force between the image forming substance and the recording material 1 promotes image removal. Even if the liquid 11 is applied to the recording material 1, the recording material 1 does not decrease, so that the recording material 1 sticks to the belt and separation in the vicinity of the separation roller 24 does not occur, so that jamming occurs. As one method for preventing this, it is effective to print a mark indicating that reproduction is possible on the recording material 1 to which the swelling layer is applied. Since at least the surface of the guide plate 2 that is in contact with the recording material 1 is white or light, the visibility of the mark indicating the reproducibility is also increased. It is possible to prevent erroneous operations to be introduced.
[0040]
In the example shown in FIG. 3, as an example of applying the image removal promoting liquid 11 to the recording material 1, an example in which the image removal promoting liquid 11 attached to the roller 12 is transferred to the recording material 1 is shown. As a method, an immersion method, a jet method, or the like is also effective. However, in the recording material 1 in which the non-liquid absorbent substrate is provided with the swelling layer, the swelling layer generally swells, so that the recording material 1 is remarkably different from the case where the recording material 1 such as paper is used. The adhesive force with the recording material 1 is reduced.
[0041]
For this reason, a part of the image forming substance is separated from the recording material 1 in the liquid supply means by the movement of the recording material 1 in the liquid and the flow of the liquid by the jet. In particular, an image having a small area is easily peeled off. Therefore, in the methods such as the immersion method and the jet method, the image removal accelerating liquid 11 is contaminated with the image forming substance when applied to the recording material 1. For this reason, it is often necessary to replace the liquid 11 and to provide means for removing the image forming substance in the liquid.
[0042]
On the other hand, in the system in which the image removal promoting liquid 11 attached to the roller 12 is transferred to the recording material 1 to transfer the image removal promoting liquid 11 to the recording material 1, the image removal promoting liquid 11 attached to the roller 12 is The liquid 11 is hardly contaminated and the above-described trouble is unlikely to occur because the liquid material is hardly quantitatively transferred to the recording material 1 and the contact time between the liquid supply means and the recording material 1 is short.
[0043]
In the example shown in FIG. 3, a roller-shaped blade member 31 is installed as a cleaning means. The roller-shaped blade member 31 is rotated at a surface speed different from the conveying speed of the belt 28 by a driving device (not shown) while contacting the belt 28 with a predetermined load, and is peeled and transferred from the recording material 1 onto the belt 28. The image forming material is scraped off. As for these cleaning conditions, conventionally presented conditions, for example, those described in JP-A-9-212049 may be used. The image forming material 33 scraped off by the roller-shaped blade member 31 is accumulated in the waste image forming material collecting container 32 and is appropriately disposed of.
[0044]
Among the metal materials containing chromium (Cr), nickel (Ni), and iron (Fe), the blade member material of the roller-shaped blade member 31 is particularly martensitic stainless steel, tungsten (W), chromium ( High-speed steel containing tungsten (Cr), carbon (C), vanadium (V), molybdenum (Mo), cobalt (Co), iron (Fe), etc., tungsten carbide (WC) or titanium carbide (TiC) as main components Super steel alloy, zirconia (ZrO₂), Alumina (Al₂O_Three), Titanium nitride (TiN), titanium carbide (TiC), silicon nitride (SiN), silicon carbide (SiC), ceramic material containing at least one component, diamond-like carbon (DLC) or cubic crystal Examples thereof include boron nitride (CBN).
[0045]
FIG. 1 is a block diagram showing the principal part of an embodiment of a recording material reproducing apparatus according to the present invention. The roller-shaped blade member 31 is held by a casing 36a surrounding the roller-shaped blade member 31, and a waste image forming material collection container 32 for collecting the removed image forming material (waste image forming material) is disposed at the lower portion of the casing 36a with the casing 36a. It is installed closely. On the downstream side of the casing 36a in the belt conveyance direction, the blade 35 is installed in contact with the surface of the belt 28 as means for preventing scattering of the image forming substance. The blade 35 is a member that scrapes and removes the waste image forming material that has reattached to the belt 28 due to static electricity after the image forming material is removed by the roller-shaped blade member 31, and fills the gap between the inside and the outside of the casing 36a. It also has a role.
[0046]
The roller-shaped blade member 31 is pressed with a predetermined load from the backup roller 34 opposed via the belt 28, and while being in contact with the belt by this load, the conveying speed of the belt 28 is determined by a driving device (not shown). Rotating at different surface speeds, the image forming substance on the belt 28 peeled and transferred from the recording material 1 is scraped off. The backup roller 34 is rotated following the rotation of the belt 28. The backup roller 34 is also provided with a casing 36 b, and a blade 37 is provided on the downstream side in the transport direction of the belt 28 to scrape and remove the waste image forming material that has wrapped around the back surface of the belt 28. When a blade is employed as a member for scraping and removing, it can be constructed at a lower cost than when a woven fabric or a nonwoven fabric described later is employed, and the durability of the member is high.
[0047]
The waste image forming material collection container 32 is detachably installed, and when the waste image forming material is accumulated in a predetermined amount or more, it is detected by a sensor (not shown) and a “necessary disposal” is displayed. The waste image forming substance recovery container 32 includes an exhaust fan as a decompression means for maintaining the entire cleaning device (inside the casings 36 a and 36 b and the waste image forming substance recovery container 32) at a lower pressure than the inside of the regeneration device 61. 38 is installed. The reason why the pressure is kept low is to prevent the waste image forming material from scattering from the inside of the cleaning device to the outside through the gap, and in order to always generate a slight air flow from the outside to the inside of the cleaning device in these gaps. It is. Accordingly, the pressure may be weak enough that the collected waste image forming material does not move outside the cleaning device. Naturally, a filter for preventing the waste image forming material from passing is attached to the ventilation opening between the exhaust fan 38 and the waste image forming material collecting container 32.
[0048]
The material of the blades 35 and 37 is preferably an elastic body such as stainless steel or a metal that is not easily corroded, or a resin material. When the belt 35 is in contact with the belt 28, an appropriate pressure can be obtained from the belt 28 by the tension of the belt 28. It is preferable to do so. Further, as shown in FIG. 1, the belt 28 may be sandwiched between the blades 35 and 37 so as to be pressed. In this case, the gap can be further reduced by setting the positions where both the blades 35 and 37 are in contact with the belt 28 on substantially the same line. Since the adhering force of the waste image forming material adhering to the belt 28 is a level of static electricity, about 10 g / cm in the width direction of the belt 28 is sufficient as the pressing force by the blades 35 and 37.
[0049]
By installing the blades 35 and 37, the waste image forming material is not reattached and conveyed on the front and back surfaces of the belt 28 after passing through the cleaning device, and the casings 36a and 36b and the belt Therefore, the waste image forming substance is not scattered in the reproducing apparatus 61 through the gap between the reproducing apparatus 61 and the waste image forming substance does not adhere to each part, and the reliability of the reproducing apparatus 61 is further improved.
[0050]
FIG. 2 is a block diagram of the main part for explaining another embodiment of the recording material reproducing apparatus according to the present invention, in which a non-woven fabric (felt) is provided on the downstream side of the belt conveying of the cleaning device as a scratch removing member. It is. The scraping removing member shown in FIG. 2 has a felt provided on the surface of a metal core roller, and a pair of felt rollers 39 are provided with a belt 28 interposed therebetween. The felt rollers 39 are in contact with the belt 28 with a constant load by being pulled by a spring or the like (not shown).
[0051]
As the member to be scraped off, a woven fabric or a nonwoven fabric may be used in addition to the blade, and the belt 28 and the woven fabric or the nonwoven fabric slide as the belt 28 travels. It is possible to wipe away the waste image forming substance. When a woven fabric or a non-woven fabric is used as a member to be scraped off, the removal rate is greatly increased as compared with the blade, and almost no waste image forming material is left on the belt.
[0052]
Further, in the embodiment shown in FIG. 2, the blade 35 is provided on the upstream side of the felt roller 39 in the casings 36a and 36b, and the image forming material removed by the roller-shaped blade member 31 is directly applied to the felt. Further, the waste image forming material reattached on the belt 28 is primarily removed. In this way, the waste image forming substance can be more effectively removed by combining the blade and the abrasion removing member made of woven or non-woven fabric in multiple stages.
[0053]
In addition, the felt roller 39 shown in FIG. 2 is normally stationary even when the belt 28 rotates, and slides on the belt 28. However, the belt rotates slightly in the direction opposite to the moving direction of the belt 28 every predetermined processing time, thereby preventing the waste image forming material from accumulating at the contact portion between the felt roller 39 and the belt 28.
[0054]
By installing the felt roller 39, the front and back surfaces of the belt 28 after passing through the roller-shaped blade member 31 as a cleaning means are not transported with waste image forming substances attached again. Since the waste image forming material does not scatter into the reproducing device 61 through the gap between the casings 36a and 36b, the waste image forming material does not adhere to each part, and the reliability of the reproducing device 61 is further improved. To do.
[0055]
【The invention's effect】
(1) Effect on the invention of claim 1
  Even if the image forming material removed from the peeling member by the cleaning member is reattached to the peeling member, it can be removed by the removing member. thisByAbandonedIt is possible to reduce the risk of malfunction caused when the image forming substance adheres to each component in the reproducing apparatus, or heating and ignition in the case of an electric component. In addition, it reduces the quality of the regenerated recording material that occurs when it adheres to the regenerated recording material, and further suppresses the contamination of surrounding articles and the adverse effects on the human body when some of the waste image forming material is scattered outside the reproducing device. be able to.
[0057]
(3) Effect on the invention of claim 3
Using a woven or non-woven fabric as a scraping member, and disposing the traveling belt (peeling member) so that the woven or non-woven fabric slides, waste image forming materials on the front and back surfaces of the belt can be efficiently wiped away. can do. When a woven fabric or a non-woven fabric is used, the removal rate of the waste image forming substance is increased and the scattering prevention effect is high as compared with the case where a blade is used.
[0058]
(4) Effect on invention of claim 4
By using a blade made of an elastic body as a member to be scraped and removed, the image forming substance on the front and back surfaces of the belt can be wiped away by sliding the belt (peeling member) and the blade that slide. By using the blade, the durability of the member can be improved and the production cost can be reduced as compared with the case of using a woven fabric or a non-woven fabric.
[0059]
(5) Effect on the invention of claim 5
By providing the recording material reproducing device with a pressure reducing means for lowering the air pressure inside the cleaning device as compared with the outside as the scattering preventing device, it is possible to suppress the scattering of the waste image forming material from the inside of the cleaning device to the outside. . In particular, it is possible to effectively suppress a problem that the waste image forming material is scattered by a convection generated during cleaning from a slight gap between the cleaning device and the waste image forming material collection container.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a main part configuration diagram for explaining an embodiment of a recording material reproducing apparatus according to the present invention.
FIG. 2 is a main part configuration diagram for explaining another embodiment of the recording material reproducing apparatus according to the present invention;
FIG. 3 is a block diagram of a main part for explaining an example of a recording material reproducing apparatus to which the present invention is applied;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Recording material, 2 ... Guide plate, 3 ... Paper feeding roller, 11 ... Image removal acceleration | stimulation liquid, 12 ... Image removal acceleration | stimulation liquid application roller, 13 ... Image removal acceleration | stimulation liquid container, 14 ... Recording material press roller, 15 ... squeeze roller, 21 ... heating drum, 22 ... heater, 23 ... inlet roller, 24 ... separation roller, 25 ... tension roller, 26 ... cleaning backup roller, 27 ... metal pressure roller, 28 ... belt, DESCRIPTION OF SYMBOLS 31 ... Roller-shaped blade member, 32 ... Waste image forming substance collection container, 33 ... Image forming substance, 34 ... Backup roller, 35, 37 ... Blade, 36a, 36b ... Casing, 38 ... Exhaust fan, 39 ... Felt roller, 42, 43 ... waste sheet roller, 44 ... waste sheet guide plate, 46 ... waste sheet tray, 51 ... liquid absorbing pad, 61 ... regenerator.

Claims (4)

In the process of transporting a sheet-like recording material in which the image-forming substance is formed into a film and a belt-like release member that peels and transfers the image-forming substance from the recording material in the contact state, the image-forming substance In a reproducing apparatus for a recording material, the image forming material is peeled and transferred from the recording material to the peeling member, and the peeled and transferred image forming substance is removed from the peeling member by a cleaning member .
The cleaning device includes a removing member that removes an image forming substance from the peeling member in a state of being in contact with both the front and back surfaces of the peeling member on the downstream side in the movement direction of the peeling member of the cleaning member. Recording material playback device . The reproducing apparatus of the recording material according to 請 Motomeko 1,
The recording material reproducing apparatus, wherein the removing member is made of woven fabric or non-woven fabric. The recording material reproducing apparatus according to claim 1 ,
The recording material reproducing apparatus, wherein the removing member is constituted by a blade made of an elastic body. In the reproducing | regenerating apparatus of the recording material in any one of Claims 1 thru | or 3 ,
The cleaning device, reproducing device of the recording material, characterized in that it comprises a decompression means for the internal pressure of the cleaning device lower than the external pressure of the cleaning device.

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