JP2013097733A - Erasing device and data erasing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve consistency between written information and electronic data of information written on a recording medium, which is associated with information relating to the recording medium, when erasing information.SOLUTION: A data erasing system includes: erasing means which erases prescribed written data written on a recording medium; recognition means which recognizes that written data is being erased by the erasing means on a prescribed pattern printed on the recording medium; and erasing means which, when it is recognized that written data is being erased by the erasing means, erases electronic data corresponding to the written data, in a storage medium included in the recording medium and storing therein the electronic data.

Description

  The present invention relates to an erasing apparatus and a data erasing system for erasing information written on a reproducible recording medium.

  Conventionally, with the advancement of computers and the speeding up of networks, processing of various documents has been digitized. On the other hand, a method of writing on paper using a pen or the like has an advantage that it is easier than a method of inputting an electronic document to a computer using a keyboard or a mouse.

  There is also a technique for digitizing information written with a pen or the like. In this technique, for example, a pattern such as a lattice pattern is printed on a recording medium, and the movement of the pen can be read by measuring the pattern using an optical device provided on the pen tip.

  Patent Document 1 discloses a technique for referring to an attribute of a paper document acquired by a coordinate acquisition device and reflecting it in an electronic document corresponding to the paper document in which information is entered. Japanese Patent Application Laid-Open No. 2004-228561 discloses a technique that makes it possible to specify the authority to digitize and edit an addition to an information display medium.

  There is also a technique for reusing a recording medium to be added. For example, Patent Document 3 discloses a technique for performing reprinting by cleaning a rewritable paper.

  Here, the association between the digitized document and the digitized writing information becomes important. For example, in Patent Document 4, writing is performed using a recording medium having a magnetic recording layer in which document information specifying a document is magnetically recorded and a thermoreversible recording layer in which written information is recorded. A data input system for inputting electronic data of document information and document information is disclosed.

  In the prior art, the written information and the document information recorded on the magnetic recording layer are associated with each other by a host computer, and the associated information is deleted by the host computer. When the information is erased by the host computer, there is a problem that the written information and the recorded information cannot be consistent. Further, there is a problem in that even when the written data written on the recording medium is erased, consistency with the data stored in the storage unit inside the recording medium cannot be achieved.

  The present invention has been made in view of the above problems, and when erasing information, the written information and the electronic information of the information written on the recording medium stored in the storage unit inside the recording medium. An object of the present invention is to provide an erasing device and a data erasing system that can be consistent with data.

  An erasure apparatus according to an aspect of the present invention includes: an erasure unit that erases predetermined writing data written on a recording medium; and a erasing unit that operates on a predetermined pattern printed on the recording medium. Recognizing means for recognizing that the writing data is erased, and when the recognizing means recognizes the erasure of the writing data, the electronic data included in the recording medium and corresponding to the writing data is Erasing means for erasing the electronic data with respect to the storage medium to be stored.

  A data erasing system according to another aspect of the present invention is a data erasing system that includes a recording medium including a storage medium and a predetermined pattern printed thereon, and an erasing device. Erasing means for erasing predetermined writing data written on a recording medium, and recognition means for recognizing that the erasing means is erased by the erasing means on the predetermined pattern; And erasing means for erasing the electronic data with respect to the storage medium storing electronic data corresponding to the writing data when the recognizing means recognizes erasure of the writing data.

  According to the present invention, when erasing information, consistency between written information and electronic data of information written on a recording medium stored in a storage unit inside the recording medium is obtained. Can do.

Sectional drawing which shows an example of the recording medium in embodiment. FIG. 4 is a diagram illustrating an example of a recording medium according to an embodiment. The figure which shows an example of the dot pattern in embodiment. The figure which shows the shift | offset | difference of a dot pattern. The figure which shows an example of the system which manages information using the recording medium of FIG. The block diagram which shows an example of a structure of a writing apparatus and an erasing apparatus. 2 is a block diagram illustrating an example of hardware of an information processing device in an embodiment. FIG. 2 is a block diagram illustrating an example of functions of an information processing device in an embodiment. The figure which shows an example of each data. 1 is a diagram illustrating an example of a configuration of an image erasing apparatus. The figure which shows an example of a structure of a reproduction | regeneration coating apparatus. The figure which shows the specific example of a series of operation | movement of image formation, data deletion, image deletion, and reproduction | regeneration. The figure which shows an example of a work process. 6 is a flowchart showing an example of RFID tag preparation processing. The flowchart which shows an example of a process of a writing apparatus. The flowchart which shows an example of a process of an erasing apparatus. 6 is a flowchart illustrating an example of information management processing of the information processing apparatus. The flowchart which shows an example of the mail process of information processing apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Embodiment]
In the embodiment, for example, with respect to an image formed with an image forming material having hydrophilicity and / or a recording medium having a predetermined pattern, the image forming material is removed and the recording medium is recorded. Applicable to playback.

  Further, the embodiment is suitable for removing the image forming material and reproducing the recording medium, for example, for an image by an ink jet recording method and / or a recording medium having a predetermined pattern. Therefore, hereinafter, an embodiment will be described taking an inkjet recording system as an example of a recording system. First, the configuration of the recording medium 1 will be described.

<Recording medium>
FIG. 1 is a cross-sectional view showing an example of a recording medium 1 in the embodiment. In the recording medium 1 shown in FIG. 1, an intermediate layer 20 is provided on one surface of a substrate (support) 10 having water resistance, and an image is formed on a surface of the intermediate layer 20 different from the surface on the substrate 10 side. A receiving layer 30 for the forming material 40 is provided. The image forming material 40 has hydrophilicity.

(Substrate)
The substrate (support) 10 in the embodiment preferably has water resistance that does not deteriorate due to the supply of an image forming material removal liquid (hereinafter also simply referred to as a removal liquid) described later. The substrate 10 includes a storage medium 50. The storage medium 50 is a wireless IC chip such as an RFID (Radio Frequency IDentification) tag. Hereinafter, the storage medium 50 will be described using an RFID tag as an example.

  When the RFID tag 50 is embedded in the substrate 10, the substrate 10 that does not impair the performance of the RFID tag 50 even when the removal liquid is supplied is preferable.

  As the substrate 10, high-grade printing paper, electrophotographic recording paper, thermal recording paper, and the like can be used. In particular, many reversible thermosensitive recording papers have a cured resin layer on the surface so that the recording layer can withstand repeated image formation and image erasure by a thermal head. Such reversible thermosensitive recording paper is preferably used as the substrate 10. be able to.

  As the substrate 10, either a transparent support or an opaque support can be used. The substrate 10 may have other layers such as an undercoat layer as desired.

  Although the thickness of the substrate 10 varies depending on the purpose of use, it is preferably 30 μm to 1000 μm, and more preferably 60 μm to 800 μm. The thickness varies depending on the usage, sheet size, material, and the like. For example, when the RFID tag 50 is embedded in the substrate 10, the thickness is normally relatively 600 μm to 800 μm.

  As described above, the substrate 10 may be a thermal recording medium, a thermal transfer recording medium, or the like, and the reversible thermosensitive recording medium as a typical example of this type of substrate 10 is the same as Japanese Patent Application No. 2010-. See 197395.

(Middle layer)
In the case of the recording medium 1 for inkjet, if the intermediate layer 20 is provided on the substrate 10, for example, a hydrophilic polymer material called latex or an aqueous emulsion coating solution of an inherently hydrophobic polymer material has been used. As a large amount of a strong emulsifier, there is a forced emulsion of an inherently water-insoluble resin due to surface activity.

  Thereby, strong adhesiveness with both the substrate 10 surface and the receiving layer 30 can be obtained, and prevention of beading and bleeding by the printed ink can be achieved. On the other hand, the harmful effects of using a large amount of strong emulsifier are already known. When a water-soluble resin coating solution is rarely used, it has been subjected to a crosslinking reaction treatment with a crosslinking agent having a functional group capable of chemically bonding with the constituent resin. In the prior art, it is natural that the appearance of strong adhesiveness is mainly taken into consideration, and it is not intended to delete the intermediate layer by applying water or an aqueous liquid.

  On the other hand, the intermediate layer 20 in the embodiment contains, as a main component, an uncured water-soluble polymer material that dissolves or swells when the removal liquid is supplied. Here, “main component” means 60% or more by dry weight. The intermediate layer 20 of the recording medium 1 in the embodiment may contain various subcomponents such as inorganic fine particles, organic fine particles, a small amount of a surfactant, an antioxidant, a leveling agent and the like as long as the object of the present invention is not impaired. Can be contained.

  The water-soluble polymer material used for the intermediate layer 20 of the recording medium 1 in the embodiment itself has a film-forming property and is excellent in the adhesiveness between the substrate 10 and the receiving layer 30. It swells to reduce the adhesion with the substrate 10. Adhesion with the receiving layer 30 is also significantly reduced, but this is not essential in the present invention. For the water-soluble resin used for the mid layer 20, refer to Japanese Patent Application No. 2010-197395 of the same applicant.

  Further, the intermediate layer 20 may receive ink (image forming material) that the receiving layer 30 could not accommodate. Therefore, the intermediate layer 20 is made of inorganic fine particles such as silica, titanium oxide, alumina, zinc oxide, calcium carbonate, acrylic, styrene, etc. in order to prevent further image dust and bleeding, and to maintain film hardness during drying. The resin fine particles may be added. When such inorganic fine particles are added, 1 to 50 parts by weight, preferably 1 to 20 parts by weight can be added to 100 parts by weight of the water-soluble resin.

  Further, the intermediate layer 20 may be subjected to an antistatic treatment such as a cationic surfactant as necessary in order to increase water permeability. The antistatic agent may be added to the material forming the receiving layer 30, or after forming the receiving layer 30, a solution dissolved and dispersed in an appropriate solvent may be applied. Furthermore, in order to prevent the intermediate layer 20 from being deteriorated, an ultraviolet absorber or an acid value inhibitor may be contained. The amount of the ultraviolet absorber or acid value inhibitor added is preferably 5% by weight or less.

(Receptive layer)
The receiving layer 30 in the embodiment is for receiving and forming an image of ink droplets sent from an ink jet recording head without using beading or bleeding. In this respect, there is essentially no difference from the ink receiving layer of glossy recording paper in ordinary ink jet. However, conventionally, a coating liquid containing a large amount of inorganic fine particles and organic fine particles that absorb the ink colorant and a small amount of binder resin for fixing them is applied and dried.

  On the other hand, the receiving layer 30 in the embodiment has sufficient water permeability (passability) to the intermediate layer 20 as a lower layer in the process of removing the image forming material described later. The image forming material is, for example, a colorant for inkjet ink. In addition, the receptor layer 30 is disintegrated or relaxed in an adhesive state with the intermediate layer 20 by dissolution or swelling with the removal liquid of the intermediate layer 20.

  Also, the amount of inorganic fine particles and organic fine particles added is zero or very small compared to the case of the ink receiving layer of glossy recording paper in ordinary ink jet, and most of the material is preferably a resin. The technical idea is different from that of the ink receiving layer.

  The addition amount of the fine particles having a relatively large BET surface area for ink absorption is preferably conservative, and the layer thickness may be slightly thick accordingly. The amount added is, for example, 50 parts or less, preferably 30 parts or less, more preferably 25 parts or less per 100 parts of the binder resin.

  In the embodiment, the lower intermediate layer 20 receives ink liquid that has penetrated into the receiving layer 30 and leaked from the receiving layer 30.

  The receiving layer 30 in the embodiment includes a resin material that may include fine particles for absorbing and receiving an ink liquid for ink jet recording including a colorant. Further, it comprises an aqueous solution or an aqueous emulsion containing various auxiliary agents such as a stabilizer, a dispersant, a thickener, an antifoaming agent, an antioxidant, a wetting agent, an ultraviolet absorber, and a water-resistant agent, if desired. The receiving layer 30 may be formed as a coating layer of the coating agent. For detailed components of the receiving layer 30, refer to Japanese Patent Application No. 2010-197395 filed by the same applicant.

  The thickness of the receiving layer 30 is about 1 to 120 μm, preferably about 2 to 60 μm so that the ink absorbing action by the receiving layer 30 is sufficient and the forming operation of the receiving layer 30 can be performed satisfactorily. If the thickness is less than 1 μm, the effect of improving the environmental resistance such as water resistance, scratch resistance, weather resistance, etc. when formed into a film may be insufficient.

<Image forming material>
The image forming material 40 in the embodiment includes a coloring agent and other auxiliary materials added as desired in the hydrophilic liquid medium. The colorant is, for example, various dyes and pigments included in a normal inkjet ink. For the ink composition used, see Japanese Patent Application No. 2010-197395 of the same applicant.

<Data erasure system>
Hereinafter, a case where the above-described recording medium 1 is used for a data erasing system will be described. FIG. 2 is a diagram illustrating an example of the recording medium 1 according to the embodiment. In the recording medium 1 shown in FIG. 2, an image 70 and a predetermined pattern 60 are formed by the image forming material 40. The image 70 shows the process name “A-1”. In the image, a production model, a factory name, an assembly check sheet, and the like are also formed. The process name “A-1” 70 will be described as an example.

  In the example of the recording medium 1 shown in FIG. 2, the RFID tag 50 is embedded in the recording medium 1. The RFID tag 50 is configured to record and erase data. The RFID tag 50 stores predetermined data.

  A predetermined pattern 60 is formed on the recording medium 1 shown in FIG. The predetermined pattern is a pattern capable of recognizing writing data, and is, for example, a dot pattern (Anoto pattern) manufactured by Anoto. The handwritten data is handwritten characters or images, and is also called handwriting data or handwritten data.

  FIG. 3 is a diagram illustrating an example of the dot pattern 60 in the embodiment. The dot pattern 60 is, for example, a special dot pattern (so-called anoto pattern) in which dots are arranged at intervals of 0.3 mm in length and width. As shown in FIG. 3, the dot pattern 60 is composed of a combination of a total of 36 dots, 6 × 6 dots in length and width, arranged on a grid pattern with a spacing of 0.3 mm.

  FIG. 4 is a diagram showing the deviation of the dot pattern 60. As shown in FIG. 4, each dot is very slightly displaced from the perpendicular point in either the upper, lower, left, or right direction. Since each of the 36 dots has 4 positions, a huge number of patterns of 4 to the 36th power can be created.

  In order to form the dot pattern 60, it is necessary to form the dot pattern 60 with a high-resolution printer, but the recording medium 1 described above can be printed with a high-resolution printer. Therefore, the recording medium 1 can be formed even with the predetermined pattern 60 that requires high resolution. The predetermined pattern 60 is not limited to the Anoto pattern, and may be any pattern that can recognize the writing data.

<System configuration>
FIG. 5 is a diagram showing an example of a system for erasing data on the recording medium shown in FIG. In the example shown in FIG. 5, the data erasing system includes a recording medium 1 and an erasing device 600. It is also possible to construct an information management system using this data erasing system and data input system.

  The information management system includes an information processing apparatus (for example, a host computer) 100, a printer (for example, an ink jet printer) 200, a recording medium 1, a writing apparatus 300, an RFID reader / writer 400, and an erasing apparatus 600. The RFID reader / writer 400 is installed at a work site. The RFID reader / writer 400 has an RFID antenna.

  The information processing apparatus 100, the printer 200, the writing apparatus 300, the RFID reader / writer 400, and the erasure apparatus 600 can transmit and receive data via a network. The printer 200 includes an RFID reader / writer 201 that can write and read data to and from the RFID tag. The RFID reader / writer 201 has an RFID antenna.

  In the data erasing system in the embodiment shown in FIG. 5, the recording medium 1 is used when erasing data recorded by the process management “A-1” of the model “GX3300”. Hereinafter, a case where the person who performs the process “A-1” is “XXX” and the person who deletes data is “YYY” will be described. “XXX” and “YYY” may be the same person.

  The RFID tag 50 stores information relating to the recording medium 1 or the storage medium 50, for example, “a” that is unique identification information (hereinafter also referred to as a unique ID). This data is sent from the information processing apparatus 100 to the printer 200, and the printer 200 writes the data to the RFID tag 50 of the recording medium 1 using the RFID reader / writer 201. Further, this data may already be stored at the time of factory shipment.

  When the printer 200 acquires data to be printed on the recording medium 1 from the information processing apparatus 100, the printer 200 prints images such as characters and photographs representing work processes, as shown in FIG. The image may be a barcode or the like. The printer 200 ejects ink (image forming material) from the recording head to print a predetermined pattern 60 on a part of the surface of the recording medium 1.

  Here, it is assumed that writing is performed using the writing apparatus 300 on the predetermined pattern 60 printed on the recording medium 1. At this time, the writing data is read by the writing device 300, and the electronic data of the writing data is written to the RFID tag 50 of the recording medium 1 by the RFID reader / writer 302 of the writing device 300 described later.

  Further, it is assumed that writing data written on a predetermined pattern 60 printed on the recording medium 1 is erased using the erasing apparatus 600. At this time, the eraser 600 recognizes the erase of the written data, and the RFID reader / writer 602 of the eraser 600 described later erases the electronic data stored in the RFID tag 50 of the recording medium 1.

(Work contents)
Next, the work content will be described. Before the work related to the data erasure system is performed, the following work is performed in the information management system. First, when “XXX” performs the process “A-1” of the model “GX3300”, the recording medium 1 is held over the RFID reader / writer 400. The RFID reader / writer 400 reads the unique ID “a” stored in the RFID tag 50 of the recording medium 1.

  The read data is transmitted to the information processing apparatus 100, and the information processing apparatus 100 displays a work instruction corresponding to the process “A-1” corresponding to the unique ID “a” on the display screen. As will be described later, the information processing apparatus 100 manages the unique ID “a” and the work process “A-1” in association with each other. The work process “A-1” may be associated with a corresponding work instruction.

  Further, a display unit may be installed in the vicinity of the RFID reader / writer 400, and the display unit may display data read by the RFID reader / writer 400, the above-described work instructions, and the like.

  “XXX” assembles according to the work instructions displayed on the display screen, and when the work is finished, confirms the work according to the check sheet on the recording medium 1. When the confirmation of the check sheet is completed, Mr. “XXX” writes the worker name by handwriting in the column of the worker signature on which the predetermined pattern 60 is printed. In this case, the writing data is, for example, “XXX”. When the writing of the operator name is finished, the work standard is to press the transfer switch of the writing device 300.

  For this reason, when Mr. “XXX” finishes the work, the writing device 300 writes the name of the worker in the column of the worker signature on which the predetermined pattern 60 on the recording medium 1 is printed. The writing apparatus 300 can recognize writing data as image data. Further, the writing apparatus 300 can read the data of the RFID tag 50 and can write the recognized image data to the RFID tag 50.

  Next, a case where a data erasing system is used will be described. When the data erasing system is used, “YYY” uses the erasing apparatus 600 to erase the written data that has been written.

  The erasing device 600 can read the data of the RFID tag 50 and can erase the information in the handwritten data area of the RFID tag 50. The RFID tag 50 has at least an ID area for storing the unique ID of the RFID tag 50 and a handwritten data area for storing writing data.

  Next, the writing device 300 and the erasing device 600 will be described. FIG. 6 is a block diagram illustrating an example of the configuration of the writing device 300 and the erasure device 600. First, the configuration of the writing apparatus 300 will be described.

<Writing device>
A writing apparatus 300 illustrated in FIG. 6 is a pen type, and includes a reading unit 301, an RFID reader / writer 302, a pen-down detection unit 303, a data recording unit 304, a data transfer unit 305, a transfer switch 306, a clear switch 307, and a data processing unit 308. And a writing unit 310.

  The reading unit 301, the RFID reader / writer 302, the pen-down detection unit 303, the data recording unit 304, the data transfer unit 305, the transfer switch 306, the clear switch 307, and the data processing unit 308 are connected to the data bus 309, respectively. The data transfer unit 305 is connected to the information processing apparatus 100 via a wireless or wired line.

  The reading unit 301 is provided at the tip of the writing apparatus 300, optically reads a predetermined pattern 60 on the recording medium 1, and accurately measures the trajectory to obtain writing data as image data. For example, the reading unit 301 uses the pen-down detection unit 303 to perform reading processing when the pen tip is in contact with the recording medium 1.

  The reading unit 301 is, for example, a small camera, and when writing a character, for example, a dot pattern 60 in a range of 1.8 mm square (6 × 6 dots in length and width = 36 dots in total as described above), for example, 75 sheets per second. Perform high-speed shooting. The reading unit 301 reproduces the writing data as image data that has been image-scanned by capturing the position information on the dot pattern 60 that the writing device 300 has passed every moment.

  The RFID reader / writer 302 includes an RFID antenna and reads data from the RFID tag 50 built in the recording medium 1. For example, the RFID reader / writer 302 reads the unique ID “a” from the RFID tag 50. The RFID reader / writer 302 functions as a writing unit that writes data to the RFID tag 50 and a reading unit that reads data from the RFID tag 50.

  The RFID reader / writer 302 writes the electronic data recorded in the data recording unit 304 in the handwritten data area of the RFID tag 50. In this case, the electronic data is stored in association with the unique ID of the RFID tag 50. The electronic data recorded in the data recording unit 304 is, for example, image data indicating a worker name, but is not limited thereto, and may be character data of a worker name subjected to OCR (Optical Character Recognition) processing.

  Thus, the electronic data of the writing data and the unique ID of the RFID tag 50 can be associated with each other and stored in the RFID tag 50. Therefore, the electronic data digitized by the writing apparatus 300 can be read from the recording medium 1 without accessing the information processing apparatus 100.

  The writing process of the RFID reader / writer 302 may be instructed by the transfer switch 306 or may be automatically performed after the reading process by the reading unit 301 is completed.

  The pen-down detection unit 303 detects whether or not the pen tip of the writing apparatus 300 is in contact with the recording medium 1. The pen-down detection unit 303 is, for example, a writing pressure sensor, and detects the presence or absence of contact between the pen tip and the recording medium 1 by measuring the writing pressure at the pen tip.

  Since the pen-down detection unit 303 only needs to detect contact between the pen tip and the recording medium 1, the pen tip may have a slight stroke in the direction along the pen axis, and a micro switch may be provided at the end thereof. realizable.

  The data recording unit 304 records electronic data of handwritten data generated by the reading unit 301. The electronic data is, for example, image data, but may be character data as long as OCR processing is possible in the writing apparatus 300.

  The data recording unit 304 is a memory having a predetermined capacity sufficient to record electronic data. The data recording unit 304 can also erase the recorded data. The trigger for erasing is when the clear switch 307 is turned on and a signal for erasing is acquired.

  The data transfer unit 305 is a communication unit that can transmit and receive data via a network. The data transfer unit 305 receives electronic data of handwritten data recorded in the data recording unit 304 and a unique ID “a” read from the RFID tag 50. Then, the information is transferred (transmitted) to the information processing apparatus 100. The trigger for transfer is when a transmission switch (not shown) is turned on and a signal for transfer is acquired.

  The transfer switch 306 is a switch that controls ON / OFF. When the transfer switch 306 is turned on, the data processing unit 308 outputs a signal for writing to the RFID reader / writer 302.

  The clear switch 307 is a switch that controls ON / OFF. When the clear switch 307 is turned on, the data processing unit 308 outputs a signal for erasing to the data recording unit 304.

The transfer switch 306 and the clear switch 307 are provided in the writing apparatus 300 so as to be pressed, and are switched ON / OFF by the user. The data processing unit 308 controls the above units. The data processing unit 308 is, for example, a CPU (Central Processing Unit).
Note that the clear switch 307 is not necessarily required.

  The writing device 300 is housed in a cylindrical casing having a pen tip that enables writing on the recording medium 1 like a ballpoint pen or a magic, and operates with electric power supplied from a power source (not shown).

  The writing unit 310 is a unit for visualizing writing data, and is, for example, a pencil lead or a ballpoint pen. The tip of the writing unit 310 is the above-described pen tip. The user visualizes predetermined writing data on the predetermined pattern 60 using the writing unit 310.

  Here, as a specific example of the writing apparatus 300, there is Anotopen manufactured by Anoto. Anotopen realizes digitization of handwritten information, and can also record the writing order, writing speed, writing pressure, pen tilt, writing date and time.

  Note that the information processing apparatus 100 executes various document processing or document management using image data of writing data recorded in the writing apparatus 300. Next, the erasing apparatus 600 that erases the writing data written by the writing apparatus 300 will be described.

<Eraser>
Next, the configuration of the eraser 600 in the embodiment will be described. The erasure apparatus 600 shown in FIG. 6 includes a recognition unit 601, an RFID reader / writer 602, a switch 603, a data recording unit 604, a data transfer unit 605, a data processing unit 608, and an erasure unit 610.

  The recognition unit 601, the RFID reader / writer 602, the data recording unit 604, the data transfer unit 605, and the data processing unit 608 are each connected to the data bus 609. The data transfer unit 605 is connected to the information processing apparatus 100 via a wireless or wired line.

  The recognizing unit 601 is provided in the vicinity of the erasing unit 610 of the erasing device 600, optically reads a predetermined pattern 60 on the recording medium 1, and performs erasing at a predetermined portion of the predetermined pattern 60. Recognize that. The vicinity of the erasing unit 610 is, for example, a position adjacent to the erasing unit 610 and may be any place where the predetermined pattern 60 can be optically read during erasing by the erasing unit 610.

  For example, the recognition unit 601 performs reading when an instruction to erase is instructed by the switch 603 that is pressed by the eraser 610. The recognition unit 601 is a small camera, for example. The recognition unit 601 can recognize that erasing is performed on the predetermined pattern 60 when the predetermined pattern 60 is read in a state where the switch 603 is pressed.

  The RFID reader / writer 602 includes an RFID antenna and reads data from the RFID tag 50 built in the recording medium 1. For example, the RFID reader / writer 602 reads the unique ID “a” from the RFID tag 50. The RFID reader / writer 602 functions as an erasing unit that erases data from the RFID tag 50 and a reading unit that reads data from the RFID tag 50.

  Further, when the recognition unit 601 recognizes the predetermined pattern 60, the RFID reader / writer 602 erases the data stored in the handwritten data area of the RFID tag 50 with respect to the unique ID read from the RFID tag 50.

  Thereby, even when the writing data on the recording medium 1 is erased, the writing data on the predetermined pattern 60 and the electronic data of the writing data stored in the RFID tag 50 can be maintained.

  The erasing process of the RFID reader / writer 602 is automatically performed when the switch 603 is released, for example.

  The switch 603 detects whether the eraser 610 is in contact with the recording medium 1. The switch 603 is, for example, a pressure sensor disposed on a surface of the eraser 610 that faces the contact surface of the recording medium 1 (hereinafter also simply referred to as a back surface) or a side surface of the contact surface (hereinafter also simply referred to as a side surface). is there. This pressure sensor detects the presence or absence of contact between the eraser 610 and the recording medium 1 by measuring the pressure between the eraser 610 and the case of the eraser 610, for example. While the eraser 610 is erasing, the back or side surface of the eraser 610 and the case are pressed, and this state is used for determining whether there is contact.

  Note that the switch 603 only needs to detect contact between the erasure unit 610 and the recording medium 1, and thus can be realized by having a slight stroke on the back surface or side surface of the erasure unit 610 and providing a microswitch at the end thereof. it can.

  The data recording unit 604 records the unique ID read by the RFID reader / writer 602.

  The data transfer unit 605 is a communication unit that can transmit and receive data via a network. The data transfer unit 605 functions as a transmission unit that transfers (transmits) the unique ID (eg, “a”) and clear data recorded in the data recording unit 604 to the information processing apparatus 100. The clear data is data for erasing data, for example, NULL data. The trigger for transfer is when a transmission switch (not shown) is turned on and a signal for transfer is acquired.

  The data processing unit 608 controls each unit connected via the data bus 609. The data processing unit 608 is, for example, a CPU (Central Processing Unit).

  In addition, the erasure apparatus 600 has a casing that serves as a case for the erasure unit 610 that enables erasure of information written on the recording medium 1, similarly to an eraser. In this case, for example, a recognition unit 601, an RFID reader / writer 602, a switch 603, a data recording unit 604, a data transfer unit 605, and a data processing unit 608 are configured. Each part in the housing operates with electric power supplied from a power source (not shown).

  The erasure unit 610 is a unit for erasing written information, and is, for example, an eraser or a friction unit for erasing a ballpoint pen. The user erases predetermined writing data from the predetermined pattern 60 using the erasure unit 610.

  Next, the information processing apparatus 100 will be described in detail.

<Information processing device>
Next, the hardware of the information processing apparatus 100 in the embodiment will be described. FIG. 7 is a block diagram illustrating an example of hardware of the information processing apparatus 100 according to the embodiment. As illustrated in FIG. 7, the information processing apparatus 100 includes a control unit 101, a main storage unit 102, an auxiliary storage unit 103, an external storage device I / F unit 104, a network I / F unit 105, an input unit 106, and a display unit 107. including. These components are connected to each other via a bus so as to be able to transmit and receive data.

  The control unit 101 is a CPU that controls each device, calculates data, and processes in a computer. The control unit 101 is an arithmetic device that executes a program stored in the main storage unit 102. The control unit 101 receives data from the input device or the storage device, calculates and processes the data, and outputs the data to the output device or the storage device.

  The main storage unit 102 is a ROM (Read Only Memory), a RAM (Random Access Memory), or the like, and a storage device that stores or temporarily stores programs and data such as an OS and application software that are basic software executed by the control unit 101. It is.

  The auxiliary storage unit 103 is an HDD (Hard Disk Drive) or the like, and is a storage device that stores data related to application software or the like.

  The external storage device I / F unit 104 is an interface between the information processing apparatus 100 and a storage medium 108 (for example, a flash memory or an SD card) connected via a data transmission path such as USB (Universal Serial Bus). .

  In addition, a predetermined program is stored in the storage medium 108, and the program stored in the storage medium 108 is installed in the information processing apparatus 100 via the external storage device I / F unit 104, and the installed predetermined program is It can be executed by the information processing apparatus 100.

  The network I / F unit 105 is a peripheral having a communication function connected via a network such as a LAN (Local Area Network) or a WAN (Wide Area Network) constructed by a data transmission path such as a wired and / or wireless line. This is an interface between the device and the information processing apparatus 100.

  The input unit 106 includes a keyboard having cursor keys, numeric input, various function keys, and the like, a mouse and a slice pad for performing key selection on the display screen of the display unit 107, and the like. The input unit 106 is a user interface for a user to give an operation instruction to the control unit 101 and input data.

  The display unit 107 is configured by a CRT, LCD, or the like, and performs display according to display data input from the control unit 101. The display unit 107 may be separate from the information processing apparatus 100, and the information processing apparatus 100 in that case has a display control function for displaying on the display unit 107.

(function)
Next, functions of the information processing apparatus 100 will be described. FIG. 8 is a block diagram illustrating an example of functions of the information processing apparatus 100. In the example illustrated in FIG. 8, the information processing apparatus 100 includes a communication unit 111, a character recognition unit 112, a management unit 113, a mail creation unit 114, and a storage unit 115.

  The communication unit 111 can be realized by the network I / F unit 105, for example. The character recognition unit 112 and the mail creation unit 114 can be realized by the control unit 101 or the main storage unit 102 as a work memory, for example. The management unit 113 can be realized by the control unit 101, the auxiliary storage unit 103, and the like, for example. The storage unit 115 can be realized by the auxiliary storage unit 103, for example.

  The communication unit 111 transmits / receives data via a network. The communication unit 111 receives, for example, electronic data (for example, image data or character data) of writing data or a unique ID from the writing apparatus 300. Further, the communication unit 111 receives the unique ID of the storage medium and / or electronic data of writing data from the RFID reader / writer 400, and transmits the unique ID of the storage medium and the print contents to the printer 200. In addition, the communication unit 111 receives clear data for deleting the unique ID and data from the eraser 600.

  The character recognition unit 112 can execute, for example, OCR processing. When the electronic data is image data, the character recognition unit 112 performs character recognition processing on the image data. The character recognition unit 112 performs character recognition processing on, for example, image data “XXX” and converts “XXX” into character data. When the character recognition process ends, the character recognition unit 112 outputs character data “XXX” to the mail creation unit 114.

  The management unit 113 manages the unique ID of the storage medium 50. One or a plurality of unique IDs are managed by the management unit 113. Here, the management unit 113 manages, for example, the unique ID, the work process, and the signed electronic data in association with each other. The management unit 113 may manage, for example, signed image data or character recognized character data as electronic data.

  When the management unit 113 acquires the character data “a” indicating the unique ID and the electronic data from the communication unit 111, first, the management unit 113 performs collation processing to determine whether the character string “a” has already been managed. When the management unit 113 has already managed the character string “a”, the electronic data “XXX” is managed in association with the character string “a”. When the association of the electronic data “XXX” is completed, the management unit 113 notifies the mail creation unit 114 to that effect.

  When the character string “a” is not managed, the management unit 113 performs error processing. The error process is, for example, a process of notifying the writing apparatus 300 of an error, and the writing apparatus 300 is a process of notifying the user by turning on or blinking an LED (Light Emitting Diode) or the like when the error is notified.

  Further, even when the character data “a” indicating the unique ID and the clear data are acquired from the communication unit, the management unit 113 similarly performs a collation process to determine whether the character string “a” has already been managed. When the management unit 113 already manages the character string “a”, the clear data is associated with the character string. That is, when the character string “XXX” is already associated with “a”, the management unit 113 overwrites the NULL data and deletes the character string “XXX”. The management unit 113 may notify the mail creation unit 114 that the electronic data of the character string “XXX” has been deleted.

  When the character string “a” is not managed, the management unit 113 performs error processing in the same manner as when writing.

  Thereby, when the management means 113 manages the signed electronic data, the process can indicate that the work has been completed, and can also manage who has done the work. If the signature is mistakenly performed, the electronic data corresponding to the signature can be erased.

  The storage unit 115 stores address information that associates the user name with the mail address. For example, in the address information, a mail address of “XXX@yyy.com” is associated with the user name “XXX”. The address information holds one or more combinations of user names and mail addresses.

  When the management unit 113 receives a notification that the association of electronic data has been completed, or when the clear data is overwritten on the character string “XXX”, the mail creation unit 114 manages the management unit 113 or the character recognition unit. The character string “XXX” acquired from 112 is collated with the user name of the address information stored in the storage unit 115.

  When the matching user name is found in the address information, the mail creating unit 114 creates a mail with the mail address corresponding to the user name as the destination. The mail text describes, for example, that the signature association has been completed or that the association has been canceled. The mail creation unit 114 outputs a mail to the communication unit 111. The communication unit 111 transmits the mail created by the mail creation unit 114 to the destination.

  If there is no matching user name, the mail creating unit 114 performs error processing. The error process is, for example, a process of notifying the writing device 300 that the mail could not be transmitted, and activating the vibration function of the writing device 300 or turning on or blinking the LED.

  It should be noted that the error process when the electronic data cannot be associated may be different from the error process when the mail cannot be transmitted. For example, the LED may be turned on when electronic data is not yet stored, and the LED may be blinked when mail is not transmitted.

  As a result, the user can grasp which error processing is performed, and can easily take subsequent measures.

<Data example>
Next, various data will be described with reference to FIG. FIG. 9 is a diagram illustrating an example of each data. FIG. 9A shows an example of data stored in the RFID tag 50. As shown in FIG. 9A, the RFID tag 50 stores a unique ID “a” for identifying the RFID tag when shipped from the factory.

  Next, when electronic data is written from the RFID reader / writer 302 of the writing apparatus 300, electronic data “XXX” is stored in the RFID tag 50 in association with the unique ID.

  FIG. 9B shows an example of data stored in the data recording unit 304 of the writing apparatus 300. As shown in FIG. 9B, the data recording unit 304 stores electronic data read by the reading unit 301.

  The unique ID of the RFID tag 50 may be read by the RFID reader / writer 302 and stored in the data recording unit 304. In this case, the data recording unit 304 stores the unique ID of the RFID tag 50 and electronic data representing the worker name.

  Here, when the electronic data is deleted from the RFID reader / writer 602 of the eraser 600, the electronic data “XXX” associated with the unique ID of the RFID tag 50 is deleted.

  FIG. 9C illustrates an example of data managed by the management unit 113 of the information processing apparatus 100. Before the data transfer from the writing device 300, the data of the unique ID and the process are managed. When there is data transfer from the writing device 300 or another device (for example, the RFID reader / writer 400), the electronic data of the worker name “XXX” corresponding to the unique ID “a” is managed. The process data is not always necessary.

  Thereafter, for example, when a unique ID and clear data are transferred from the eraser 600, the electronic data of the worker name “XXX” corresponding to the unique ID “a” is erased.

<Recording medium initialization>
The recording medium 1 described above can be initialized. When the recording medium 1 is initialized, it is necessary to erase an image printed on the recording medium 1, a predetermined pattern 60, writing data, and the like. Further, the data written in the RFID data 50 may be erased once and initialized.

  Next, an image erasing apparatus suitable for erasing the image of the recording medium 1, the predetermined pattern 60, and the data of the RFID tag 50 in the embodiment will be described. FIG. 10 is a diagram illustrating an example of the configuration of the image erasing apparatus 500.

  The image erasing method of the recording medium 1 according to the embodiment includes a removing liquid supply process for supplying a removing liquid (removing liquid for an image forming material) having water or an aqueous liquid to the image holding surface of the recording medium 1, and a recording target It includes a wiping process for wiping the image holding surface of the medium 1. These processes may proceed simultaneously, but are sequentially performed in the image erasing apparatus 500 shown in FIG.

  In the image erasing apparatus 500 shown in FIG. 10, the recording medium 1 is transported into the apparatus by a pair of transport rollers 501, and the removal liquid in the image material removal liquid tank 502 is pressurized at the location where the removal liquid is applied, and the liquid is ejected. Jetted from the nozzle 503 onto the surface of the recording medium 1.

  The liquid ejection nozzle 503 may be a nozzle array including a plurality of nozzle heads, or may be a slit type ejection head. The removing liquid is applied to the surface of the receiving layer 30 having the image forming material, and the intermediate layer 20 is swollen.

  Next, the recording medium 1 is guided to the rubbing process and brushed by the brush roller 508 while being held by the holding roller pair 506 and the holding roller pair 507. Thereby, the swelled intermediate layer 20 is removed.

  However, in the embodiment, wiping with a woven cloth or the like may be used instead of brushing. A brush cloning belt 509 shown in FIG. 10 removes paste-like debris attached to the brush roller 508.

  After that, in the example shown in FIG. 10, the recording medium 1 has the scraping material 511 with the help of the backup roller 510 to remove the remaining intermediate layer 20 material more completely. It is scraped off. Thereafter, the recording medium 1 is discharged onto the tray 513, but such a surface cleaning blade 511 is not necessarily required in the embodiment.

  Further, the image erasing apparatus 500 includes an RFID reader / writer 512 that can write data to the RFID tag 50.

  The RFID reader / writer 512 erases the data of the RFID tag in the recording medium 1 from which the image or the predetermined pattern has been erased by the image erasing apparatus 500. In this case, the recording medium 1 is ejected to the tray 6513 in a state where there is no image or data of the predetermined pattern 60 and the RFID tag 50. As described above, the recording medium 1 after the image removal processing is only the substrate 10. The substrate 10 incorporates an RFID tag 50 as necessary.

<Reproduction of recording medium>
Next, reproduction of the recording medium 1 will be described. FIG. 11 is a diagram illustrating an example of the configuration of the regenerative coating apparatus 600. The reproduction coating apparatus 600 can reproduce the recording medium 1.

  As shown in FIG. 11, in the recording medium 1 having only the substrate 10 by the image erasing process, the intermediate layer 20 is coated on the substrate 10 having water resistance by the reproduction coating apparatus 600, and the intermediate layer 20 is dried. The

  After the intermediate layer 20 is dried, the reproduction coating apparatus 600 coats the receiving layer 30 for the image forming material 40 on the surface opposite to the substrate 10 side of the intermediate layer 20 and dries it. Thereby, the reproduction of the recording medium 1 is completed.

<Specific example>
Here, a specific example of a series of operations of image formation, image erasure, and reproduction of the recording medium 1 will be described. Depending on the model to be produced and each process, images such as characters, bar codes, photographs, etc. representing the work process are replaced, and the recording medium 1 is rewritten.

  Also, since the workers are different, it is necessary to erase written data written with a ballpoint pen or magic in the column of worker signatures. Further, since the layout printed on the recording medium 1 is also changed depending on the model and each process, the position and size of the predetermined pattern 60 are also changed as necessary.

  FIG. 12 is a diagram illustrating a specific example of a series of operations of image formation, image erasure, and reproduction. As shown in FIG. 12, the recording medium 1 changes to the states (1) to (6). Each state will be described using the surface of the recording medium 1 and the cross section of the recording medium 1.

  The state (1) indicates a state at the time of factory shipment, for example. The recording medium 1 in the state (1) has a substrate 10, an intermediate layer 20 on the substrate 10, and a receiving layer 30 on the intermediate layer 20. The RFID tag 50 at this time stores, for example, unique identification information (unique ID) of the RFID tag.

  The state (2) indicates a state in which an image (including the image 70) and a predetermined pattern 60 are formed by the image forming material 40 by the printer 200. For example, the image 70, the predetermined pattern 60, and the like are printed on the recording medium 1 by inkjet ink. At this time, the RFID reader / writer 201 of the printer 200 transmits data for recognizing the model to be assembled and data for recognizing the working process “A-1” corresponding to the unique ID of the RFID tag 50 at the time of printing. The tag 50 may be written. On the recording medium 1 of (2), the image 70 and the predetermined pattern 60 in the case of the process “A-1” are printed.

  The state of (3) indicates a state in which the work of the process “A-1” is completed and the name of the worker is written on the predetermined pattern 60 by the worker. Here, the name of the worker is “XXX”. At this time, the worker writes his / her name using the writing apparatus 300 described above.

  Thereafter, for example, the writing apparatus 300 writes the generated electronic data “XXX” in the RFID tag 50. As a result, the RFID tag 50 is associated with the unique ID and the electronic data.

  The state (4) indicates a state in which the operator's name has been erased by the eraser 600. The written data is erased, for example, when the name of the operator is incorrect or when electronic data cannot be correctly recognized. At this time, the person who erases erases the name using the above-described erasure apparatus 600. Thereafter, for example, the eraser 600 deletes the electronic data “XXX” based on the unique ID.

  The state (5) indicates a state in which the operator's name is written again on the predetermined pattern 60. The processing in this case is the same as (3).

  The state (6) indicates a state after the image erasing process is performed on the recording medium 1 in the state (3) or (5). When the work is completed on the recording medium 1 in the state of (3) or (5) and the use is finished, image erasing for reusing the recording medium 1 is performed. The recording medium 1 is subjected to an image erasing process by the image erasing device 500 to erase the image 70, the predetermined pattern 60, and the like.

  Further, for example, data other than the unique ID is deleted by the RFID reader / writer 512 from the RFID tag 50 in the recording medium 1. Note that the unique ID may be deleted as necessary. At this time, the recording medium 1 is only the substrate 10.

  The state (7) indicates a state where the reproduction coating process is performed after the image is erased. In the recording medium 1 in the state (7), the intermediate layer 20 and the receiving layer 30 are reproduced on the substrate 10 by the reproduction coating process. As a result, the recording medium 1 returns to the state (1), is initialized for reproduction, and is reused.

  The state (8) indicates a state where an image different from the state (2) and a predetermined pattern are printed. On the recording medium 1 of (8), the image 70 and the predetermined pattern 60 in the case of the process “A-2” are printed. The recording medium 1 in (8) is different from the recording medium 1 in the state of (2) in the size and position of the predetermined pattern 60 and the position of the image 70. Further, if the unique ID of the RFID tag 50 can be rewritten, it may be rewritten. As a result, the recording medium 1 can change the formed image, change the position and size of the predetermined pattern to be formed, and rewrite the unique ID according to the model and process contents. .

  In the recording medium 1 of (8), after the unique ID “b” is stored in the RFID tag 50, the operator name “YYY” is written on the predetermined pattern 60 by the writing device 300. Then, the same processing as the processing of “XXX” described above is performed. That is, the generated electronic data “YYY” is written to the RFID tag 50.

(Working example)
Next, an application example of data input using the data input system in the embodiment will be described. FIG. 13 is a diagram illustrating an example of a work process. Here, an example is shown in which a container carrying a product goes through each process. RFID reader / writers 400 and 401 are installed for each process.

  For example, the worker “XXX” performs the work in the process “A-1”, and when the work is completed, signs the recording medium 1 using the writing apparatus 300 and moves the container to the next process.

  The worker “ZZZ” performs the work in the process “A-2”, and when the work is completed, signs the other recording medium 1 using the writing apparatus 300 and moves the container to the next process. In this case, if each RFID reader / writer reads the RFID tag of the recording medium, it is possible to quickly grasp who is in charge of which work.

  For example, when an error inspection machine indicates that an operation in a predetermined process is an error when starting each operation, the RFID reader / writer transmits electronic data associated with the unique ID of the RFID tag corresponding to that process. read. The read electronic data is displayed on the display unit or output by voice so that the operator who has performed the error work can be easily identified without having to check the title column of the recording medium. Will be able to.

<Operation>
Next, the operation of the information management system in the embodiment will be described. Hereinafter, an example of RFID preparation processing, an example of processing of a writing device, an example of data management processing of an information processing device, and an example of mail processing of an information processing device will be described in order.

(RFID tag preparation process)
FIG. 14 is a flowchart illustrating an example of RFID tag preparation processing. In step S101 shown in FIG. 14, the RFID tag 50 is numbered with a unique number and stores the number as a unique ID.

  In step S102, the information processing apparatus 100 manages the unique ID set (stored) in the RFID tag 50 in association with a work process or the like.

  Thereby, the information processing apparatus 100 can manage the unique ID of the RFID tag 50 included in the recording medium 1.

(Processing of writing device)
FIG. 15 is a flowchart illustrating an example of processing of the writing apparatus 300. In step S <b> 201 illustrated in FIG. 15, the reading unit 301 determines whether or not writing data written on the predetermined pattern 60 is detected. When the reading unit 301 detects writing data, the reading unit 301 acquires image data of the writing data. If the reading unit 301 does not detect writing data, the process returns to step S201. When the reading unit 301 acquires the image data of the writing data, the reading unit 301 proceeds to step S202.

  In step S <b> 202, the data recording unit 304 stores electronic data of writing data generated by the reading unit 301.

  In step S203, the data processing unit 308 determines whether or not the clear switch 307 is turned on. The data processing unit 308 can determine that the clear switch 307 has been turned on when the push signal is acquired from the clear switch 307. If the clear switch 307 is ON (step S203—YES), the process returns to step S201. If the clear switch 307 is OFF (step S203—NO), the process proceeds to step S204.

  In step S204, the data processing unit 308 determines whether or not the transfer switch 306 is turned on. The data processing unit 308 can determine that the transfer switch 306 has been turned ON when the pressing signal is acquired from the transfer switch 306. If the transfer switch 306 is OFF, the process returns to step S203, and it is determined whether the clear switch has been turned ON during that time. If the transfer switch is turned on (YES in step S204), the process proceeds to step S205.

  In step S <b> 205, the RFID reader / writer 302 writes electronic data to the RFID tag 50.

  Thus, the writing apparatus 300 can associate the unique ID of the RFID tag 50 with the electronic data of the writing data (handwritten signature) using the RFID tag 50. Note that the process of step S203 is not necessarily a necessary process.

(Processing of eraser)
FIG. 16 is a flowchart illustrating an example of processing of the erasure apparatus 600. In step S301 illustrated in FIG. 16, the data processing unit 608 determines whether or not the switch 603 is turned on when the erasure unit 610 starts erasing the writing data. If the switch 603 is ON (step S301-YES), the process proceeds to step S302. If the switch 603 is OFF (step S301-NO), the process is terminated. The data processing unit 608 notifies the recognition unit 601 that the switch 603 has been turned on.

  In step S302, when the recognition unit 601 is notified that the switch 603 is turned on, the recognition unit 601 determines whether or not the writing data written on the predetermined pattern 60 has been erased. The recognition unit 601 determines that erasing has been performed on the predetermined pattern 60 when the predetermined pattern 60 is read.

  When the recognizing unit 601 determines that erasure is performed on the predetermined pattern 60 (step S302—YES), the recognition unit 601 proceeds to step S303 and determines that erasure is not performed on the predetermined pattern 60 ( Step S302—NO) The process is terminated.

  In step S303, the RFID reader / writer 602 determines whether communication with the RFID tag 50 is possible. When it is determined that communication with the RFID tag 50 is possible (step S303—YES), the process proceeds to step S304, and when it is determined that communication with the RFID tag 50 is not possible (step S303—NO), the process ends.

  In step S304, the RFID reader / writer 602 reads the unique ID of the RFID tag 50 and records it in the data recording unit 604 of the eraser 600.

  In step S305, the data processing unit 608 determines whether the switch 603 is turned off. The data processing unit 608 can determine that the switch 603 has been turned off when the pressing signal has not been acquired from the switch 603 for a long period of time. If the switch 603 is ON (step S305—NO), the process returns to step S305. If the switch 603 is OFF (step S305—YES), the process proceeds to step S306.

  In step S <b> 306, the RFID reader / writer 602 erases the electronic data stored in the handwritten data area of the RFID tag 50.

  Thereby, the erasure apparatus 600 can erase the electronic data associated with the unique ID of the RFID tag 50 together with the erasure of the handwritten data (handwritten signature).

  In step S <b> 307, the data transfer unit 605 adds clear data to the unique ID recorded in the data recording unit 604 and transmits it to the information processing apparatus 100.

  Thereby, the information processing apparatus 100 can erase the electronic data corresponding to the unique ID acquired together with the clear data.

(Information management processing of information processing device)
FIG. 17 is a flowchart illustrating an example of information management processing of the information processing apparatus 100. In step S401 illustrated in FIG. 17, the communication unit 111 determines whether electronic data has been received from the writing device 300 or the erasure device 600. If electronic data is received (step S401-YES), it will progress to step S402, and if electronic data is not received (step S401-NO), it will return to step S401.

  In step S402, the management unit 113 reads the number of bytes determined from the top of the electronic data.

  In step S403, the management unit 113 searches the unique ID managed by itself for a match with the character data of the received unique ID.

  In step S404, the management unit 113 determines whether there is a matching unique ID. If there is a matched unique ID (step S404-YES), the process proceeds to step S405, and if there is no matched unique ID (step S404-NO), the process proceeds to step S406.

  In step S405, the management unit 113 stores electronic data (for example, image data) of the worker name or clear data in association with the matched unique ID.

  In step S406, the management unit 113 performs error processing. In the error process, an error notification is transmitted to the writing apparatus 300, and the writing apparatus 300 is a process of notifying the user of an error, for example, by turning on or blinking an LED or vibrating the LED.

  Thus, the information processing apparatus 100 manages the completion of the work by managing the electronic data of the worker name, and can also manage the worker name.

(Information processing device mail processing)
FIG. 18 is a flowchart illustrating an example of mail processing of the information processing apparatus 100. The process shown in FIG. 18 is a process performed after electronic data is associated (after step S405 shown in FIG. 17).

  In step S501 shown in FIG. 18, the character recognition unit 112 performs character recognition processing (OCR processing) on the received electronic data (image data) and converts it into character data. Here, the operator name is obtained as character data. If the electronic data is character data, step S501 is omitted.

  In step S <b> 502, the mail creation unit 114 searches the address information stored in the storage unit 115 for a user name that matches the worker name that has been character-recognized.

  In step S503, the mail creation unit 114 determines whether there is a matching user name. If there is a matching user name (step S503-YES), the process proceeds to step S504, and if there is no matching user name (step S503-NO), the process proceeds to step S506.

  In step S504, the mail creation unit 114 acquires a mail address corresponding to the matching user name from the address information, and creates a mail using the mail address as a destination. The mail text is, for example, a text notifying that the association of the image data has been completed.

  In step S505, the communication unit 111 transmits the mail created by the mail creation unit 114. As a result, the worker can know that the image data of his / her signature has been successfully managed by the information processing apparatus 100.

  In step S506, the mail creation unit 114 performs error processing. In the error process, for example, the writing apparatus 300 is notified that mail could not be transmitted. When the writing device 300 is notified that mail transmission is impossible, the writing device 300 lights or blinks the LED, or activates the vibration function. Note that this error processing may be different from the error processing associated with image data. Thereby, the worker can know that the mail could not be transmitted, and can know that the mail address should be registered in the information processing apparatus 100.

  As described above, according to the embodiment, when the written information is erased, consistency between the written information and the recorded information can be achieved. For example, the consistency of information can be achieved by deleting the data associated with the unique ID stored in the storage medium 50 in the recording medium 1 in accordance with the deletion of the written information.

  Further, according to the embodiment, it is possible to re-form a predetermined pattern by forming a predetermined pattern capable of recognizing writing data on a recording medium capable of printing at a high resolution. it can.

  Further, even if the recording medium in the embodiment is handwritten on a predetermined pattern, the written data can be erased. In addition, the recording medium in the embodiment can be printed by an ink jet printer capable of high resolution, and for example, a minute dot such as an Anoto pattern can be formed.

  In addition, the recording medium in the embodiment includes a storage medium such as a wireless IC chip, so that image data of data written on a predetermined pattern can be associated with information stored in the storage medium. It becomes like this.

  In the embodiment, the writing device 300 and the erasing device 600 are described as separate bodies, but may be provided in the same casing. In this case, the RFID reader / writer, the data transfer unit, the data recording unit, and the data processing unit are shared by the writing device and the erasing device.

  Moreover, the erasure apparatus 600 makes it possible to replace the erasure unit 610 with respect to the housing when the erasure unit 610 is an eraser, for example. In this case, a configuration other than the eraser 610 may be mounted on the casing of the eraser 610 as an erasing device.

  As described above, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of disclosed constituent elements. For example, some components may be deleted from all the components shown in the embodiment.

1 Recording medium 10 Substrate 20 Intermediate layer 30 Receiving layer 40 Image forming material 50 RFID tag 60 Predetermined pattern 70 Image 80 Unique ID
DESCRIPTION OF SYMBOLS 100 Information processing apparatus 111 Communication means 112 Character recognition means 113 Management means 114 Mail preparation means 115 Storage means 200 Printer 201 RFID reader / writer 300 Writing device 301 Reading part 302 RFID reader / writer 303 Pen down detection part 304 Data recording part 305 Data transfer part 306 Transfer switch 307 Clear switch 308 Data processing unit 310 Writing unit 601 Recognition unit 602 RFID reader / writer 603 Switch 604 Data storage unit 605 Data transfer unit 608 Data processing unit 610 Erasure unit

JP 2007-279889 A Japanese Patent Laid-Open No. 2002-278692 JP 2006-99559 A JP 2002-82864 A

Claims (6)

Erasing means for erasing predetermined writing data written on the recording medium;
Recognizing means for recognizing that the erasure means erases the writing data on a predetermined pattern printed on the recording medium;
When the erasure of the writing data is recognized by the recognition means, an erasing means for erasing the electronic data with respect to a storage medium that is included in the recording medium and stores electronic data corresponding to the writing data;
An erasing device. The storage medium stores identification information for identifying the storage medium,
The erasing means includes
The erasure apparatus according to claim 1, wherein the electronic data associated with the identification information is erased. Reading means for reading the identification information of the storage medium;
The erasure apparatus according to claim 2, further comprising: transmission means for transmitting clear data for erasing the read identification information and data to an information processing apparatus via a network. A data erasing system including a storage medium, a recording medium on which a predetermined pattern is printed, and an erasing device,
The eraser is
Erasing means for erasing predetermined writing data written on the recording medium;
Recognizing means for recognizing that the writing data is erased by the erasing means on the predetermined pattern;
When erasure of the writing data is recognized by the recognizing means, erasing means for erasing the electronic data with respect to the storage medium storing the electronic data corresponding to the writing data;
A data erasure system comprising: The recording medium is
A substrate having water resistance;
An intermediate layer containing an uncured water-soluble polymer material that is dissolved or swelled by water or an aqueous liquid on at least one surface of the substrate;
The surface of the intermediate layer different from the surface on the substrate side has permeability to the water or aqueous liquid, and the disintegration or the adhesion state with the intermediate layer is relaxed by dissolution or swelling of the intermediate layer. And a receptive layer
The data erasing system according to claim 4, wherein the predetermined pattern can be formed on at least the receiving layer by an image forming material having hydrophilicity.   6. The data according to claim 4, wherein the predetermined pattern is each dot arranged on a grid at a predetermined interval, and each dot is deviated from the grid-like intersection point in any of up, down, left and right directions. Erase system.