JP2007110463A - Image reading apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform proper communication with an IC tag added to an original. <P>SOLUTION: A scanner 1 has a reading head 2 provided with a line sensor 3c for reading an image in a range along the main scanning direction of an original as an analog image signal. The reading head 2 is further provided with an antenna unit 4 having an antenna 4a extending in a main scanning direction for communication with the IC tag 101 added to the original. The scanner 1 further has a reader-writer unit 5 connected to the antenna 4a and performing communication with the IC tag 101 via the antenna 4a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image reading device that can read an image of a document as image data, and more particularly to an image reading device that can communicate with an IC tag attached to a document.

2. Description of the Related Art Conventionally, RFID (Radio Frequency Identification) technology, that is, non-contact automatic recognition technology using radio waves has attracted attention. In this RFID technology, for example, information on a user, a product, and the like is stored in an IC chip with an antenna, and the information is read from the IC chip with an antenna via an antenna to authenticate the user, the product, and the like. In this case, an IC chip with an antenna is used after being processed into a tag, a label, a card or the like.
Here, an IC chip with an antenna is incorporated with various names such as an RFID tag, an IC label, an IC tag, an IC card, a wireless IC tag, and a non-contact IC tag. In the specification, these are collectively referred to as an IC tag.

For example, it is known that an IC tag is added to each part, and maintenance, disposal, recycling, etc. are performed using the information of the IC tag when the parts are recycled (for example, see Patent Document 1).
In recent years, not only the above-described components but also an IC tag is added to a sheet, and information printed on the sheet is managed by the IC tag.
JP 2005-55831 A

Each company proposes that the IC tag is added to a predetermined position in the peripheral portion of the paper. In the case where the position of the IC tag is determined in advance, it is only necessary to configure the apparatus so that the reader / writer communicates with the position of the paper, and communication with the IC tag is easy. .
However, there may be a case where the position where the IC tag is added is different for each company. In this case, the above-described apparatus may not be able to appropriately communicate with the IC tag depending on the type of paper. In addition, depending on the user, there may be a request to add an IC tag to an arbitrary position on a sheet, and even in such a case, the above-described device may not be able to appropriately communicate with the IC tag. is there.

In addition, when an IC tag is added to the paper, important information may be written on the IC tag. When the paper is discarded, it is necessary to prevent information from leaking. . However, for example, even if the paper is shredded with a shredder, the IC chip of the IC tag remains without being shredded, and information may be extracted from this chip.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of appropriately communicating with an IC tag attached to a document. Further, the present invention provides a technique that can appropriately read data of an IC tag attached to an original together with an image of the original. In addition, a technique is provided that allows a document with an IC tag added to be appropriately discarded.

To achieve the above object, an image reading apparatus according to an embodiment of the present invention has a reading head provided with an image sensor that reads an image in a range along the main scanning direction of an original as an image signal. The communication device further includes an antenna unit having an antenna extending in the main scanning direction for communication with the IC tag attached to the document, and is connected to the antenna and performs data communication with the IC tag via the antenna. You may make it have.
According to such a configuration, communication with the IC tag can be performed regardless of the position of the document in the main scanning direction.

Further, the antenna unit may be configured such that the antenna has directivity with respect to the document side. Thereby, it is possible to appropriately communicate with the IC tag attached to the document.
Further, a moving unit that relatively moves the original and the reading head in the sub-scanning direction may be further provided. As a result, communication can be performed appropriately regardless of the position of the IC tag attached to the entire surface of the document.

Further, the range occupied by the antenna in the main scanning direction may be set so that the antenna can communicate with the IC tag over a range wider than the range of the maximum document that can be read by the image sensor in the main scanning direction. In this way, even if the IC tag attached to the document is located not only within the reading range in the main scanning direction by the image sensor, but also in a wider range than that, the IC tag is appropriately combined with the IC tag. Can communicate.
Further, the range occupied by the antenna in the main scanning direction may be a wider range than the range of the largest document that can be read by the image sensor in the main scanning direction. In this way, it is possible to reliably perform communication with IC tags located not only within the reading range of the image sensor in the main scanning direction but also in a wider range.
Further, the communication unit may further include transmission control means for transmitting data for writing predetermined dummy data to the IC tag. In this way, dummy data can be written on the IC tag attached to the paper, and important information can be prevented from leaking from the IC tag.

  The image reading method according to an embodiment of the present invention includes a main scanning for communication between an image sensor that reads an image in a range along a main scanning direction of an original as an image signal and an IC tag attached to the original. An image reading method for reading a document by an image reading device having a reading head provided with an antenna extending in a direction, wherein the image reading step reads an image in a range along the main scanning direction of the document as an analog image signal by an image sensor; A data reading step for reading data stored in an IC tag attached to the document via an antenna, a reading head, and a moving step for moving the document relative to the sub-scanning direction by moving means, The image reading step, the data reading step, and the moving step are executed a plurality of times.

  According to such an image reading method, an image of a document can be read appropriately, and information stored in the IC tag can be read appropriately regardless of where the IC tag is attached to the document.

  In addition, a document processing method according to an embodiment of the present invention provides a predetermined processing for a document by an image reading apparatus having a reading head provided with an antenna extending in the main scanning direction for communication with an IC tag attached to the document. A document processing method for performing processing, a transmission step of transmitting data for writing predetermined dummy data to an IC tag attached to a document by an communication unit via an antenna, a reading head, And a moving step of moving the document relative to the sub-scanning direction by a moving means, wherein the transmitting step and the moving step are executed alternately or in parallel.

  According to such a document processing method, dummy data can be appropriately written to an IC tag attached to any position of the document. For this reason, when the document is discarded, it is possible to appropriately prevent leakage of information stored in the IC tag.

  Embodiments of the present invention will be described with reference to the drawings. The embodiments described below do not limit the invention according to the claims, and all the combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. Absent.

First, before describing the scanner apparatus 1 as an example of an image reading apparatus according to an embodiment of the present invention, an IC tag and an original with an IC tag added will be described.
FIG. 1 is a diagram illustrating an example of an IC tag and a document to which an IC tag is added. 1A shows an IC tag 101, and FIG. 1B shows a document P to which the IC tag 101 is added.
As shown in FIG. 1A, the IC tag 101 includes an antenna 102 and an IC chip 103 for transmitting and receiving data by radio waves. The IC chip 103 includes a storage unit that stores data, a transmission unit that transmits data to the outside via the antenna 102, and a reception unit that receives data from the outside via the antenna 102.
The IC tag 101 may be added at an arbitrary position on the document P. FIG. 1B shows an example in which the IC tag 101 is added to the margin outside the image range G of the document P. As a method for adding the IC tag 101 to the document P, for example, a method of adding the IC tag 101 by embedding it in the paper when the paper of the document P is created, or by attaching the IC tag 101 to the paper is added. There are methods.

Next, the scanner device 1 according to an embodiment of the present invention will be described.
FIG. 2 is a functional configuration diagram of the scanner device according to the embodiment of the present invention.
The scanner device 1 has a reading head 2 provided with a reading unit 3 for reading an image of a document as an image signal. The reading unit 3 includes a lamp 3a, an optical system 3b, a line sensor 3c as an example of an image sensor, an amplifier 3d, and an A / D converter 3e.

For example, the lamp 3 a is configured by a fluorescent tube lamp or the like that is long in the main scanning direction, and irradiates light on a range along the main scanning direction of the document P.
The optical system 3b is configured by a mirror, a lens, and the like, and guides reflected light of the light irradiated on the document P to the line sensor 3c. The line sensor 3c is constituted by, for example, a CCD (Charge Coupled Device), and reads an image in a range along the main scanning direction of the document as an analog image signal. Specifically, the line sensor 3c outputs an analog image signal corresponding to the reflected light from the range of the original P in the main scanning direction to the amplifier 3d. In this embodiment, the length of the range (maximum reading range) in which the document P can be read in the main scanning direction is, for example, the horizontal width (210 mm) of an A4 size document.
The amplifier 3d amplifies the analog image signal output from the line sensor 3c and outputs it to the A / D converter 3e. The A / D converter 3 e converts the analog image signal into a digital image signal (image data) and outputs the digital image signal to the image processing unit 7.
The image processing unit 7 inputs a digital image signal and performs various image processing such as gamma correction and color correction.

The reading head 2 can be moved in the sub-scanning direction by a head scanning mechanism 6 as an example of a moving unit.
The read head 2 includes an antenna unit 4 and a reader / writer unit 5.
The antenna unit 4 includes an antenna 4a and an insulating member 4b.
The antenna 4a is composed of a conductor member. In the present embodiment, the range occupied by the antenna 4a in the main scanning direction is a range in which the antenna 4a can communicate with the IC tag 101 (communication range) is wider than the maximum reading range in the main scanning direction by the line sensor 3c. It is configured as follows.

  Here, the range occupied by the antenna 4a in the main scanning direction can be theoretically calculated and set based on the material and shape of the antenna 4a and the properties of the IC tag 101 to be communicated. Note that even if the range occupied by the antenna 4a in the main scanning direction is set to a range larger than the maximum reading range of the line sensor 3c, the range in which the antenna 4a can communicate with the IC tag 101 is the main scanning direction by the line sensor 3c. It is possible to reliably ensure a wider range than the maximum reading range in.

Here, the effect of making the communicable range in the main scanning direction wider than the maximum reading range will be described. In the scanner device 1, there is a limit to the size of a document that can be read. When a document larger than a readable document size is read by such a scanner device 1, for example, a part of the document is placed on the glass plate 22 and the document on the glass plate 22 is read. A part of the image is captured.
In such a case, it can be considered that an IC tag is added to a region other than a part of the original, that is, the IC tag exists outside the maximum reading range. In such a situation, by making the communicable range wider than the maximum reading range as described above, communication with an IC tag outside the maximum reading range can be made possible.

  Even if the size of the original to be read is within the maximum readable range, the original may be placed with a shift from the normal position and a part of the original may be read. The presence of an IC tag occurs. Even in such a situation, similarly to the above, communication with an IC tag outside the maximum reading range can be made possible.

The insulating member 4b is made of an insulator, and is installed so that directivity in transmission / reception of radio waves by the antenna 4a is directed to the document to be read. In the present embodiment, the insulating member 4b is provided so as to cover the lower side of the antenna 4a.
The antenna 4a is connected to a reader / writer unit 5 as an example of communication means.
The reader / writer unit 5 communicates with the IC tag 101 via the antenna 4a, and executes data writing processing to the IC tag 101 and data reading processing from the IC tag 101.
Data to be written to the IC tag 101 by the reader / writer unit 5 and data to be read from the IC tag 101 are exchanged with a CPU 15 described later via a reader / writer interface (reader / writer IF) 9. The writer unit 5 and the head scanning mechanism 6 operate according to the control of the control unit 8.

The image processing unit 7, the control unit 8, and the reader / writer IF 9 are connected to the bus 16.
The bus 16 further includes an external interface (external IF) 10, a ROM (Read Only Memory) 11, a RAM (Random Access Memory) 12, a display processing unit 13, an input interface (input IF) 14, and a CPU. (Central Processing Unit) 15 is connected.

The external IF 10 mediates exchange of data between the CPU 15 and an external host device (not shown). In the present embodiment, the external IF 10 mediates an instruction to start image reading processing from the host device, mediates image data read from the document to the host device, and IC tag data read from the IC tag 101 attached to the document. I do.
The ROM 11 stores a basic program such as a boot program necessary for the scanner device 1.
The RAM 12 is used as an area for storing programs and data, or as a work area for storing data used for processing by the CPU 15. In the present embodiment, the RAM 12 stores image data read by the reading unit 3, data read from the IC tag 101 by the reader / writer unit 5, and the like.

The display processing unit 13 generates display data for displaying an image on the display device 17 and outputs the display data to the display device 17. The display device 17 is a device that displays an image, such as a liquid crystal display panel.
The input IF 14 can be connected to the invalidation button 18 and the selection instruction button 19 and passes a signal from the invalidation button 18 or the selection instruction button 19 to the CPU 15 as data.
The invalidation button 18 is a button for accepting an instruction input for invalidation processing of an IC tag when discarding a document from a user, and generates a predetermined signal when pressed.
The selection instruction button 19 is a button for receiving input of various selection instructions from the user, and generates a predetermined signal corresponding to the input when pressed.

The CPU 15 executes various processes by reading the basic program in the ROM 11 into the RAM 12 and executing it. Moreover, CPU15 controls operation | movement of each part 7-14.
When the CPU 15 receives a document reading instruction from the host device via the external IF 10, the CPU 15 controls the image processing unit 7, the control unit 8, and the reader / writer unit 5 based on the instruction to read the document. Execute the process. In this reading process, the CPU 15 temporarily stores the image data of the original document received from the image processing unit 7 and the IC tag data received from the reader / writer unit 5 in the RAM 12 in association with each other at a predetermined timing. The image data and the IC tag data stored in the RAM 12 are transmitted to the host device that has instructed reading via the external IF 10.

  When the CPU 15 receives data indicating that the invalidation button 18 has been pressed from the input IF 14, the CPU 15 controls the control unit 8 and the reader / writer unit 5 to invalidate the IC tag added to the document. Execute the process. In this IC tag invalidation process, the CPU 15 transmits dummy data to be written to the IC tag 101 to the reader / writer unit 5 via the reader / writer IF 9. The CPU 15 corresponds to transmission control means. Here, the dummy data may be all “0” data, all “1” data, or data that randomly includes “0” and “1”. If there is no data.

FIG. 3 is a diagram for mainly explaining the external configuration of the scanner device according to the embodiment of the present invention. FIG. 3A is a perspective view of a part of the scanner device 1 and a perspective view showing an appearance thereof, and FIG. 3B is a top view of the scanner device 1.
A glass plate 22 is provided on the upper surface portion 21 of the housing 20 of the scanner device 1 as a document table for placing a document to be scanned.
In addition, a lid 23 for pressing the document placed on the glass plate 22 is connected to the upper surface portion 21.
In the lid 23, for example, a plate-like member made of a conductor may be provided in a range facing the glass plate 22 when covering the glass plate 22. In this way, radio waves emitted from the antenna 4a can be appropriately prevented from passing through the lid 23 and reaching the IC tag other than the document to be read.

A reading head 2 is provided inside the housing 20. A reading unit 3 is accommodated inside the reading head 2, and light emitted to the document by the lamp 3 a of the reading unit 3 is emitted through an opening 2 a formed on the upper surface of the reading head 2, The light reflected from the document passes through the opening 2 a and reaches the line sensor 3 c of the reading unit 3.
Further, an antenna unit 4 and a reader / writer unit 5 are provided on the upper surface of the reading head 2.

Further, a head scanning mechanism 6 that enables the reading head 2 to move in the sub-scanning direction is provided inside the housing 20. In the head scanning mechanism 6, the reading head 2 is held by a sliding shaft 64 so as to be slidable in the sub-scanning direction.
In the head scanning mechanism 6, an endless drive belt 62 is stretched along the sub-scanning direction by a pulley 61 and a pulley (not shown). A motor 63 that rotates the pulley 61 is connected to the pulley 61. Further, one end of the timing belt 62 is fixed to the reading head 2. Therefore, when the motor 63 is operated, the drive belt 62 is sent, and the read head 2 is slid on the slide shaft 64 in the sub-scanning direction. The operation of the motor 63 is controlled by the control unit 8.
Further, as shown in FIG. 3B, an invalidation switch 18, a display device 17, and a selection instruction button 19 are provided on the upper surface portion 21.

FIG. 4 is a diagram illustrating a plurality of examples of the antenna unit according to the embodiment of the present invention.
A first example of the antenna unit 4 will be described with reference to FIG.
As shown in FIG. 4 (a-1), the antenna unit 4 includes the antenna 4a composed of two conductor wires, which are arranged in a substantially straight line along the main scanning direction. It is connected to the reader / writer unit 5. The range occupied by the antenna 4a in the main scanning direction is substantially the same as the maximum reading range in the main scanning direction by the reading unit 3 indicated by a broken line in the drawing. The communicable range of the antenna 4a with the IC tag 101 is as indicated by the alternate long and short dash line in the figure, and is wider than the maximum reading range.
As shown in FIG. 4A-2, in the antenna portion 4, a V-shaped insulating member 4b is provided below the antenna 4a so as to surround the lower side of the antenna 4a. With this configuration, the antenna 4a has directivity in the vertical direction, that is, in the document direction.

Next, a second example of the antenna unit 4 will be described with reference to FIG.
As shown in FIG. 4 (b-1), the antenna unit 4 includes the antenna 4a composed of two conductor wires, and each conductor wire is wound in a spiral shape. They are arranged in a substantially straight line along the main scanning direction, and one end side of each is connected to the reader / writer unit 5. The range occupied by the antenna 4a in the main scanning direction is substantially the same as the maximum reading range in the main scanning direction by the reading unit 3 as in the antenna of FIG. The communicable range with 101 is wider than the maximum reading range.
Further, as shown in FIG. 4B-2, an insulating member 4b is provided on the lower side of the antenna 4a so as to surround the lower side of the antenna 4a. With this configuration, the antenna 4a has directivity in the vertical direction, that is, in the document direction.

Next, a third example of the antenna unit 4 will be described with reference to FIG.
As shown in FIG. 4 (c-1), the antenna section 4 has a configuration in which the antenna 4a is formed in a rectangular loop shape with a single conductor wire and is bent along the main scanning direction. . Both ends of the conductor wire are connected to the reader / writer unit 5. The range occupied by the antenna 4a in the main scanning direction is substantially the same as the maximum reading range in the main scanning direction by the reading unit 3 as in the antenna of FIG. The communicable range with 101 is wider than the maximum reading range.
Further, as shown in FIG. 4C-2, an insulating member 4b is provided on the lower side of the antenna 4a so as to surround the lower side of all the conductor wires of the antenna 4a. With this configuration, the antenna 4a has directivity in the vertical direction, that is, in the document direction.

Next, a fourth example of the antenna unit 4 will be described with reference to FIG.
The fourth example is an example of an antenna that is suitable when the IC tag 101 is a so-called electromagnetic induction type IC tag that operates by obtaining electric power from the antenna by electromagnetic induction.
As shown in FIG. 4D, the antenna unit 4 is formed by winding the antenna 4a in a coil shape with one conductor wire. Both ends of the conductor wire are connected to the reader / writer unit 5. The range occupied by the antenna 4a in the main scanning direction is substantially the same as the maximum reading range in the main scanning direction by the reading unit 3 as in the antenna of FIG. 4A, and the IC tag 101 by the antenna 4a. The communicable range with is larger than the maximum reading range.

FIG. 5 is a flowchart illustrating the image reading process of the scanner device according to the embodiment of the invention.
This image reading process is started when the CPU 15 receives a document reading instruction from the host device via the external IF 10.
First, when the CPU 15 receives a reading instruction, the CPU 15 controls the image processing unit 7, the control unit 8, and the reader / writer unit 5 to enable the reading unit 3, the reader / writer unit 5, and the head scanning mechanism 6. Initial preparation processing is executed (step S10). In this initial preparation process, for example, the head scanning mechanism 6 is operated under the control of the control unit 8 to move the reading head 2 so that the position in the sub-scanning direction becomes the initial position.

  Then, under the control of the control unit 8 operated by the control of the CPU 15, the original is irradiated with light from the lamp 3 a of the reading unit 3, and the reflected light from the original is received by the line sensor 3 c, and the original image is converted into an analog image signal. Capture (step S11). The taken analog image signal is subjected to predetermined processing via the amplifier 3d, the A / D converter 3e, and the image processing unit 7, and then stored in the RAM 12 as digital image data.

Next, the control unit 8 determines whether the position of the reading head 2 is the initial position or whether it has moved a predetermined distance in the sub-scanning direction from the previous IC tag reading position (step S12).
As a result, when it is the initial position or when it has moved a predetermined distance in the sub-scanning direction from the previous IC tag reading position (YES in step S12), the control unit 8 causes the reader / writer unit 5 to A process of reading data (IC tag data) from the IC tag 101 via the unit 4 is executed (step S13). Here, since the communicable range by the antenna 4a of the antenna unit 4 is a range wider than the maximum reading range, even if the IC tag 101 exists outside the maximum reading range, data can be appropriately read from the IC tag 101. . The data of the IC tag 101 read by the reader / writer unit 5 is transferred to the CPU 15 via the reader / writer IF unit 9 and the bus 16 and stored in the RAM 12. At this time, the data of the IC tag 101 is stored in the RAM 12 in association with the image data of the same document. Note that the image data and the IC tag data stored in the RAM 12 are extracted by the CPU 15 at a predetermined timing and transmitted to the host device that has issued a reading instruction via the external IF 10.

On the other hand, if the position of the reading head 2 is not the initial position and has not moved by a predetermined distance in the sub-scanning direction from the previous IC tag reading position (NO in step S12), the next process is performed without doing anything. Proceed to (Step S14). Here, the IC tag reading is not performed when the predetermined distance is not moved in the sub-scanning direction as described above, in order to prevent frequent communication with the same IC tag 101 from occurring. It is.
Then, the control unit 8 detects whether or not it is the scan end, that is, whether or not it is the end position in the sub-scanning direction of the range in which the document is to be read (step S14). As a result, if it is not the scan end, the control unit 8 moves the reading head 2 in the sub-scanning direction by the head scanning mechanism 6 in order to read the next area (here, the next line) of the document (step S15). ), The above-described processing (steps S11 to S14) is repeated.
If it is a scan end, it is not necessary to read it next, and the process is terminated. In this way, the image on the document to be read can be read as image data, and the data of the IC tag 101 attached to the document can also be read appropriately.

FIG. 6 is a flowchart for explaining the IC tag invalidation processing of the scanner device according to the embodiment of the invention.
This IC tag invalidation processing is an example of document processing for processing a document to which the IC tag 101 is added, and starts when the CPU 15 receives data indicating that the invalidation button 18 has been pressed from the input IF 14. Is done.
In the IC tag invalidation process, the CPU 15 controls the control unit 8 and the reader / writer unit 5 to execute the following operations.

First, the control unit 8 moves the reading head 2 in the sub scanning direction by the head scanning mechanism 6 (step S21). It is assumed that the reading head 2 is at the initial position (home position) at the start of processing. Next, the CPU 15 transmits dummy data to be written to the IC tag 101 to the reader / writer unit 5 via the reader / writer IF 9, and the control unit 8 causes the reader / writer unit 5 to transmit the dummy data. Then, a process of writing to the IC tag 101 is executed (step S22).
Next, the control unit 8 detects whether or not it is a scan end, that is, whether or not the document to be invalidated is an end position in the sub-scanning direction to be scanned (step S23). As a result, if it is not the scan end, the control unit 8 repeatedly executes the above-described processing (steps S21 and S22).

When the scan end is reached (YES in step S23), the control unit 8 causes the control unit 8 to move the read head 3 to the initial position (home position) by the head scanning mechanism 6 (step S24).
Next, the control unit 8 moves the reading head 3 in the sub scanning direction by the head scanning mechanism 6 (step S25). The control unit 8 causes the reader / writer unit 5 to execute processing for reading data (IC tag data) stored in the IC tag 101 (step S26). The data of the IC tag 101 read by the reader / writer unit 5 is transferred to the CPU 15 via the reader / writer IF unit 9 and the bus 16.

  Next, the CPU 15 determines whether or not the data of the IC tag 101 received from the reader / writer unit 5 is dummy data (step S27). As a result, if the data is dummy data, the IC tag 101 is invalidated. Since it means that it has been completed, the control unit 8 detects whether or not it is a scan end, that is, whether or not it is the end position in the sub-scanning direction to be scanned with respect to the document to be invalidated (step S28). ).

As a result, if it is not the scan end, the above-described processing (steps S25 to S27) is repeatedly executed. On the other hand, in the case of the scan end, it means that all the IC tags 101 of the document can be invalidated, and the process is terminated.
When it is determined that the data of the IC tag 101 received from the reader / writer unit 5 is not dummy data (NO in step S27), it means that the dummy data could not be written to the IC tag 101. Therefore, the CPU 15 causes the display processing unit 13 to display an error to that effect on the display device 17 (step S29), and ends the process.
As a result of such processing, since the IC tag added to the document that has been processed normally contains only dummy data, there is no problem even if the information is read. Therefore, when the document is discarded, it is possible to appropriately prevent leakage of information stored in the IC tag.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and can be applied to various other modes.
For example, in the above-described embodiment, a flatbed scanner device that reads the image by moving the reading head 2 has been described as an example. However, the present invention is not limited to this, and for example, the original is moved to It may be a sheet feeder type image reading apparatus that moves the position relative to the reading head, or may be an image reading apparatus in which the user moves the reading head in the sub-scanning direction.

Moreover, in the said embodiment, although the line sensor 3c was used as an image sensor, this invention is not limited to this, You may make it use a two-dimensional image sensor.
In the above-described IC tag invalidation processing, the movement of the read head 2 (step S21) and the writing of dummy data from the IC tag 101 (step S22) are performed alternately. May be performed.

It is a figure explaining an example of the original document to which the IC tag and the IC tag were added. It is a figure explaining the functional structure of the scanner apparatus which concerns on one Embodiment of this invention. FIG. 2 is a diagram mainly illustrating an external configuration of a scanner device according to an embodiment of the present invention. It is a figure explaining the multiple examples of the antenna part which concerns on one Embodiment of this invention. 6 is a flowchart for explaining image reading processing of the scanner device according to the embodiment of the invention. It is a flowchart explaining the IC tag invalidation process of the scanner apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Scanner apparatus, 2 reading head, 3 reading part, 3a lamp, 3b optical system, 3c line sensor, 3d amplifier, 3e A / D converter, 4 antenna part, 4a antenna, 4b insulating member, 5 reader / writer part, 6 head scanning mechanism, 7 image processing unit, 8 control unit, 9 reader / writer IF, 10 external IF, 11 ROM, 12 RAM, 13 display processing unit, 14 input IF, 15 CPU, 16 bus, 17 display device, 18 Invalidation button, 19 selection instruction button.

Claims (8)

A reading head provided with an image sensor for reading an image in a range along the main scanning direction of the document as an image signal;
The reading head further includes an antenna unit having an antenna extending in the main scanning direction for communication with an IC tag attached to the document,
An image reading apparatus further comprising a communication unit connected to the antenna and performing data communication with the IC tag via the antenna.   The image reading apparatus according to claim 1, wherein the antenna unit is configured such that the antenna has directivity with respect to the document side.   The image reading apparatus according to claim 1, further comprising a moving unit that relatively moves the document and the reading head in a sub-scanning direction.   The range occupied by the antenna in the main scanning direction is formed so as to be communicable with the IC tag over a range wider than the maximum range in the main scanning direction that can be read by the image sensor. Item 4. The image reading apparatus according to any one of Items 3 to 4.   The image reading apparatus according to claim 4, wherein a range occupied by the antenna in the main scanning direction is wider than a maximum main scanning direction range that can be read by the image sensor.   6. The image reading according to claim 1, further comprising transmission control means for transmitting data for writing predetermined dummy data to the IC tag by the communication means. apparatus. An image reading apparatus having an image sensor that reads an image in a range along the main scanning direction of an original as an image signal and a reading head provided with an antenna extending in the main scanning direction for communication with an IC tag attached to the original An image reading method for reading a document by:
An image reading step of reading an image in a range along the main scanning direction of the document as an analog image signal by the image sensor;
A data reading step of reading data stored in an IC tag attached to the document via the antenna by a communication means;
A moving step of moving the reading head and the document relative to each other in the sub-scanning direction by a moving unit;
An image reading method, wherein the image reading step, the data reading step, and the moving step are executed a plurality of times. An original processing method for performing predetermined processing on an original by an image reading apparatus having a reading head provided with an antenna extending in the main scanning direction for communication with an IC tag attached to the original,
A transmission step of transmitting data for writing predetermined dummy data to the IC tag attached to the document via the antenna by a communication unit;
A moving step of moving the reading head and the document relative to each other in the sub-scanning direction by a moving unit;
An original processing method, wherein the transmitting step and the moving step are executed alternately or in parallel.

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