Abstract:
A processing device for a card-like recording medium may include a path for transferring the recording medium, a frame including a first frame and a second frame, a detector structured to detect presence of the recording medium, an imager structured to capture an image record on the recording medium. The detector may be placed in the frame before the imager in a transfer direction of the recording medium. The information processing device may further include a neutralizing member structure to remove static electricity charged in the recording medium, the neutralizing member being placed between the imager and the detector.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This is a U.S. national stage of application No. PCT/JP2007/001148, filed on Oct. 22, 2007. Priority under 35 U.S.C. §119(a) and 35 U.S.C. §365(b) is claimed from Japanese Application No. 2006-288640, filed Oct. 24, 2006; the contents of which are also incorporated herein by reference. 
     FIELD OF THE INVENTION 
     The present invention relates to an information processing device for a card-like recording medium, which reads and processes information recorded on a paper-made or plastic card-like information recording medium. 
     BACKGROUND 
     Conventionally known is an information processing device of a swiping type, in which a card is manually swiped in a guide (a card path) for reading information recorded on the card. “Swiping” to be described in this specification means an operation of sliding a card-like recording medium manually along the guide (a card path) of the information processing device. 
     An information processing device of such a swiping type is equipped with an image scanner for capturing image data by taking an image from a pattern on a card surface, such as a 2D(dimensional) bar code. The image scanner is a reduction-type optical image scanner for example (Refer to Patent Document 1, Japanese Unexamined Patent Application Publication No. 2002-259902, for example). The reason for using such a reduction-type optical image scanner is that a depth of field of the reduction-type optical image scanner is so deep that focusing can be done easily even under condition where a relative distance of the card from a scanning surface changes somewhat as the card is slid (swiped). 
     Unfortunately, if the reduction-type optical image scanner is applied, a certain length of optical path is required. As a result, the size of the entire device is likely to become large. Particularly, the reduction-type optical image scanner is not suitable for using as an image scanner to be installed in a mobile information processing device that is transferable. Furthermore, being compared with other types of scanners such as a contact-type image scanner, the reduction-type optical image scanner is more expensive, and therefore it is not preferred for an image scanner to be installed in a mobile information processing device that sells at a low unit price. 
     From the viewpoint described above, a mobile information processing device equipped with not the reduction-type optical image scanner but the contact-type image scanner is now under review. Being compared with the reduction-type optical image scanner, the contact-type image scanner is shallower in depth and compact, and therefore it is suitable for a mobile information processing device. 
     However, the information processing device equipped with the contact-type image scanner has the following problems. 
     When being manually swiped along the guide (card path), a card once held by an operator&#39;s hand may be charged with static electricity and it passes through the guide (card path). Therefore, the static electricity may be discharged to the image scanner to result in malfunction and breakdown of the image scanner. 
     To prevent the static electricity charged in the card from being discharged to the image scanner, the guide (card path) may be constructed with any conductive material such as a metal for removal of the static electricity. However, if the entire part of the guide (card path) is constructed with the conductive material, the information processing device becomes heavy. For weight saving, a conductive resin material containing carbon may be used for the guide. However, required for such a construction is a conductive resin material containing carbon that is generally expensive, and the material eventually increases the production cost. Using the conductive resin material only for a bottom of the guide (card path) solves the problems of the weight saving and the production cost. But the card swiped manually may not contact the bottom sometimes, and in such a case the static electricity cannot be removed for sure. 
     Therefore, there is a need for a processing device for a card-like recording medium that more surely prevents malfunction and breakdown of the image scanner owing to static electricity, while keeping the static electricity charged in the card from being discharged to the image scanner at the time of swiping the card manually. 
     SUMMARY 
     To achieve the advantage described above, at least an embodiment of a processing device may provide the following aspects. 
     (1) A processing device for a card-like recording medium including: a path for transferring a card-like recording medium; a frame including a first frame and a second frame, the first and second frames facing each other and sandwiching the path; a detecting means for detecting presence of the card-like recording medium traveling through the path, the detecting means being present at the path; and an imaging means for capturing an image recorded on the card-like recording medium, the imaging means being present at the path; wherein the detecting means and the imaging means are placed in the frame in this order along a transfer direction of the card-like recording medium, and the information processing device further includes a neutralizing means for removal of static electricity charged in the card-like recording medium, the neutralizing means being placed between the imaging means and the detecting means. 
     At least an embodiment of a processing device for a card-like recording medium includes: the frame having the first frame and the second frame, the first and second frames facing each other and sandwiching the path; the detecting means for detecting presence of the card-like recording medium traveling through the path; and the imaging means for capturing the image recorded on the card-like recording medium. The detecting means and the imaging means are placed in the frame in this order along the transfer direction of the card-like recording medium. The neutralizing means for removal of static electricity charged in the card-like recording medium is placed between the imaging means and the detecting means. Therefore, it is enabled to prevent malfunction and breakdown of the imaging means owing to static electricity charged in the card-like recording medium. 
     More specifically, since the neutralizing means is placed at an upstream position before the imaging means in the transfer direction of the card-like recording medium, the static electricity charged in the card-like recording medium is discharged to the neutralizing means, before being discharged to the imaging means. Therefore, the neutralizing means can prevent the static electricity from being discharged to the imaging means, and eventually it enables prevention of malfunction and breakdown of the imaging means owing to static electricity further surely. 
     The neutralizing means placed between the imaging means and the detecting means enables discharge of the static electricity further surely. Therefore, while only the neutralizing means being manufactured with a conductive material, the entire device except the neutralizing means may be formed with an inexpensive material such as a resin. Thus, this disposition enables weight saving and production cost reduction of the processing device for a card-like recording medium. 
     (2) The processing device for a card-like recording medium: wherein the imaging means includes a scanning surface for reading the image recorded on the card-like recording medium, and the imaging means is so placed as to have the scanning surface being present at the first frame; the second frame includes a pressing member, which is so located as to face the scanning surface across over the path and to press the card-like recording medium in a direction toward the scanning surface while the card-like recording medium traveling through the path; and furthermore the first frame includes a guide for keeping a distance of the card-like recording medium from the scanning surface constant while the card-like recording medium traveling through the path. 
     At least an embodiment of the imaging means is so placed as to have the scanning surface being present at the first frame; the second frame includes the pressing member, which is so located as to face the scanning surface across over the path and to press the card-like recording medium in the direction toward the scanning surface while the card-like recording medium traveling through the path; and the first frame includes the guide for keeping the distance of the card-like recording medium from the scanning surface constant while the card-like recording medium traveling through the path. Therefore, this disposition prevents the scanning surface from being damaged by traveling operation of the card-like recording medium. 
     Moreover, this disposition ensures reading the image (information) recorded on the card-like recording medium further correctly. To describe more in detail, for reading the image (information) recorded on the card-like recording medium correctly, it is preferable to have the card-like recording medium travel close to the scanning surface of the imaging means, and it is also required to keep the constant distance of the card-like recording medium from the scanning surface. At least an embodiment of the pressing member presses the card-like recording medium in the direction toward the scanning surface so as to locate the card-like recording medium close to the scanning surface, and the guide placed in the first frame ensures the constant distance between the card-like recording medium and the scanning surface. Therefore, the card-like recording medium travels close to the scanning surface while keeping the constant distance from the scanning surface. As a result, the image (information) recorded on the card-like recording medium can be read further correctly. 
     (3) The processing device for a card-like recording medium: wherein the imaging means includes a cover made of an optically-transparent material, and one side of the cover is the scanning surface while the other side of the cover is an adhesive surface adhering to the imaging means; and the neutralizing means is so placed as to be present at the path, being protruded further (i.e., positioned at a closer side) toward the path in comparison with the adhesive surface between the cover and the imaging means, and still being at a closer position in the path toward the first frame in comparison with the scanning surface. 
     At least an embodiment of the imaging means includes the cover made of the optically-transparent material, and one side of the cover is the scanning surface while the other side of the cover is the adhesive surface adhering to the imaging means. The neutralizing means is so placed as to be present at the path, being protruded further (i.e., positioned at a closer side) toward the path in comparison with the adhesive surface between the cover and the imaging means, and still being at a closer position in the path toward the first frame in comparison with the scanning surface (For example, not to protrude over the scanning surface in a direction toward the second frame, namely to be indented inside in a direction away from the second frame). Therefore, the static electricity can be discharged further surely without causing any damage on the card-like recording medium, and the image (information) recorded on the card-like recording medium can be read further correctly. 
     Namely, when the neutralizing means is placed at the same lateral position as the adhesive surface between the scanning surface (i.e, the cover/the glass plate) and the imaging means, the static electricity charged in the card-like recording medium may be discharged to the imaging means before being discharged to the neutralizing means. Placement of the neutralizing means being protruded further (i.e., at a closer side) toward the path in comparison with the adhesive surface prevents the static electricity for more sure from breaking in through the adhesive surface. 
     Moreover, if the neutralizing means is placed at the same lateral position as the scanning surface, the card-like recording medium may come into contact with the neutralizing means so as to get damaged when traveling through the path. On the other hand, placement of the neutralizing means at a laterally lower position than the scanning surface prevents the neutralizing means from coming into contact with the card-like recording medium traveling through the path. Furthermore, since the neutralizing means is present at the path, the static electricity can be discharged further surely even though the neutralizing means is positioned to be a little lower than the scanning surface. 
     Eventually, when the neutralizing means is placed at a position that is laterally higher than the adhesive surface of the imaging means and laterally lower than the scanning surface of the same in the path, the static electricity can be discharged further surely without causing any damage on the card-like recording medium traveling the path. 
     If a glass plate constitutes the cover, a clearer image can be captured in comparison with a case of constituting the cover with a resin plate so that the image (information) recorded on the card-like recording medium can be read further correctly. 
     (4) The processing device for a card-like recording medium: wherein the imaging means becomes enabled for image capturing according to an output from the detecting means. 
     In at least an embodiment, since the imaging means becomes enabled for image capturing according to an output from the detecting means, the imaging means is switched into enabled condition for image capturing at the last minute prior to capturing operation so that power consumption can be restrained. To describe more in detail, in order for the imaging means to capture the image (information) of the card-like recording medium, the imaging means requires being switched from stand-by condition to enabled condition for image capturing. If the switching operation is done manually for example, the imaging means needs to become enabled for image capturing before transferring the card-like recording medium. Therefore, a period of keeping enabled condition for image capturing becomes long, and power consumption accordingly increases. In at least an embodiment, the imaging means becomes enabled for image capturing after the start of transferring the card-like recording medium but before capturing the image, the period of keeping enabled condition for image capturing becomes short, and power consumption can be restrained accordingly. 
     When the card-like recording medium travels in a wrong direction, the imaging means does not operate to restrain power consumption, and furthermore it is enabled to prevent malfunction and breakdown of the imaging means owing to static electricity. To describe more in detail; the detecting means, the neutralizing means, and the imaging means are placed in this order along the transfer direction of the card-like recording medium. Therefore, when the card-like recording medium travels in the right direction (transfer direction), the neutralizing means can protect the imaging means as described above. Meanwhile, when the card-like recording medium travels in a direction opposite to the transfer direction, the imaging means does not operate at first so that it is enabled to prevent malfunction and breakdown of the imaging means even though the static electricity is discharged. 
     (5) The processing device for a card-like recording medium: wherein a wall made of an insulating material is placed between the detecting means and the neutralizing means. 
     At least an embodiment of the wall made of an insulating material is placed between the detecting means and the neutralizing means. Therefore, the insulating material blocks the static electricity discharged from the card-like recording medium to the neutralizing means, and eventually prevents the static electricity from being discharged secondarily to the detecting means. Furthermore, since the insulation wall allows the detecting means and the imaging means to be placed further closed each other, it becomes possible to switch the imaging means into enabled condition for image capturing at the last minute prior to capturing operation so that the period of keeping enabled condition for image capturing becomes further short, and consequently power consumption can be further restrained. 
     (6) The processing device for a card-like recording medium: wherein the imaging means is a contact-type line sensor. 
     At least an embodiment of the imaging means for capturing the image recorded on the card-like recording medium is a contact-type line sensor. Therefore, using the contact-type line sensor that is generally inexpensive enables production cost reduction. Furthermore, since the contact-type line sensor consumes less power and ensures compact design, it becomes possible to provide a processing device for a card-like recording medium that is able to restrain power consumption and excellent in portability and practicality. 
     (7) The processing device for a card-like recording medium: wherein the neutralizing means is made of a material for removing static electricity, the material being formed to have sharp tips toward the path. 
     At least an embodiment of the neutralizing means is made of a material for removing static electricity, the material being formed to have sharp tips toward the path. When static electricity concentrates around the sharp tips of the material for removing static electricity, the tips can easily attract static electricity, and therefore the static electricity charged in the card-like recording medium can be discharged further effectively. 
     (8) The processing device for a card-like recording medium: wherein the information processing device further comprises a circuit board placed in the frame; and the neutralizing means is connected to a ground terminal of the circuit board by using a cable. 
     At least an embodiment of the processing device for a card-like recording medium further comprises the circuit board placed in the frame; and the neutralizing means is connected to the ground (earth) terminal of the circuit board by using the cable. Therefore, the static electricity charged in the card-like recording medium can be discharged easily to the ground terminal. 
     (9) The processing device for a card-like recording medium: wherein the frame is constructed with the first frame, the second frame, and a transfer base level existing between the first frame and the second frame, the frame being U-shaped. 
     At least an embodiment of the frame is constructed with the first frame, the second frame, and the transfer base level existing between the first frame and the second frame, and eventually the frame is U-shaped. A simple construction of the frame enables compact design and production cost reduction of the information processing device. 
     (10) The processing device for a card-like recording medium: wherein a part of the second frame facing the scanning surface is able to get opened freely. 
     At least an embodiment of the part of the second frame facing the scanning surface is able to get opened freely, and therefore the scanning surface can always be kept free of contamination. 
     The processing device for a card-like recording medium gets contaminated easily with dust and dirt on the scanning surface, and it is difficult to clean the contamination because of the structure of the device. If dust and dirt adhere to the scanning surface, the dust and dirt are also captured in the image at the time of scanning operation. That may result in not only incorrect reading but also damages on the card-like recording medium. 
     In at least an embodiment, at the time of cleaning the scanning surface, the part facing the scanning surface is opened to expose the scanning surface. Then, the dust and dirt adhering to the scanning surface can be removed further surely. The part facing the scanning surface is equipped with the pressing member, and therefore exposing the scanning surface also makes the pressing member visible at the opposite side as well. Accordingly, dust and dirt adhering to the pressing member such as the roller can be removed for sure. As the dust and dirt adhering to the pressing member can be removed, they are not transferred to the scanning surface of the scanner. Since the scanning surface can always be kept free of contamination, the image can be read correctly without causing any damage on the card-like recording medium. 
     As described above, in the information processing device, the neutralizing means prevents the static electricity charged in the card-like recording medium from being discharged to the imaging means, and namely it prevents malfunction and breakdown of the imaging means owing to static electricity. Furthermore, since the neutralizing means ensures discharge of the static electricity further surely, it becomes possible to construct the entire device with an inexpensive material such as a resin, and that results in weight saving as well as production cost reduction of the processing device for a card-like recording medium. Moreover, including the frames equipped with the guide and the pressing member, this disposition makes it possible to keep the distance between the scanning surface and the card-like recording medium constant at the time when the information processing device reads information recorded on the card-like recording medium. As a result, scanning operation can be done more precisely, and removal of static electricity can be carried out stably while the card-like recording medium being placed close to the neutralizing means. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments will now be described, by way of example only, with reference to the accompanying drawings which are meant to be exemplary, not limiting, and wherein like elements are numbered alike in several Figures, in which: 
         FIG. 1  is a perspective view showing an external appearance of a structure of a processing device for a card-like recording medium according to an embodiment of the present invention. 
         FIGS. 2(   a ) and  2 ( b ) are cross-sectional views showing a mechanical composition of the processing device for a card-like recording medium according to the embodiment of the present invention. 
         FIGS. 3(   a ) and  3 ( b ) are cross-sectional views showing a mechanical composition of a section neighboring to an image scanner of the processing device for a card-like recording medium according to the embodiment of the present invention. 
         FIG. 4  is a schematic view showing a composition of the section neighboring to the image scanner of the processing device for a card-like recording medium according to the embodiment of the present invention. 
         FIGS. 5(   a ) through  5 ( d ) show a form of a conductive member. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     An embodiment of the present invention is described below with reference to the accompanying drawings. 
       FIG. 1  is a perspective view showing an external appearance of a structure of an information processing device  1  for a card-like recording medium according to an embodiment of the present invention.  FIGS. 2A and 2B  are cross-sectional views showing a mechanical composition of the information processing device  1  for a card-like recording medium according to the embodiment of the present invention. While a support plate  15  is fixed to a second frame  12  in  FIG. 2A , the support plate  15  is opened to expose a scanning surface  14   a  of a contact-type image scanner  14  in  FIG. 2B . 
     In  FIG. 1  and  FIGS. 2A &amp; 2B , the information processing device  1  (of a swiping type) for a card-like recording medium includes; a first frame  11  having a contact-type image scanner  14  for scanning an image on a card-like recording medium (having a barcode or an OCR character for example); a second frame  12  facing the first frame  11  across a path  10  and having a roller  16  that presses the card-like recording medium against a scanning surface  14   a  of the contact-type image scanner  14 ; and a transfer base level  30  formed between the first frame  11  and the second frame  12 . The first frame  11 , the second frame  12 , and the transfer base level  30 , as a whole, construct a frame almost U-shaped in its sectional view (Refer to  FIG. 1 ). 
     In the contact-type image scanner  14 , a beam of light radiated from a light source through the scanning surface  14   a  reaches the card-like recording medium. Then, a photo acceptance unit such as a photo diode or a CCD for example receives a reflected light beam coming from the card-like recording medium to capture an image on the card-like recording medium. 
     For the scanning surface  14   a , a plastic plate or a glass plate may be used as a member for the scanning surface. In the present embodiment, the scanning surface  14   a  is constructed with a glass plate  14   b  so that it can take a clearer image. In the embodiment, the contact-type image scanner  14  is just an example as the imaging means, and any other type of sensor such as one of various kinds of contact-type line sensors may be used instead. 
     In the information processing device  1  for a card-like recording medium, the support plate  15  is equipped with an LED  21  (light emitting device) that radiates a beam of light toward the card-like recording medium, meanwhile the first frame  11  has a read start sensor  20  (photo acceptance unit) for receiving the beam of light from the LED  21 . The read start sensor  20  is mounted on a control board  13 . According to an output from the read start sensor  20 , the contact-type image scanner  14  becomes enabled to take an image (read start). The read start sensor  20  is just an example as the detecting means. 
     In the second frame  12 , the support plate  15  supporting the roller  16  is installed at a position facing the scanning surface  14   a , one end of the support plate  15  being suspended on a shaft so that the support plate  15  can be opened. The support plate  15  supports the roller  16  so as to make the roller  16  movable between two positions; i.e., one as a fixed position (Refer to  FIG. 2A ) where the roller  16  is present at the path, and the other as an opened position (Refer to  FIG. 2B ) where the scanning surface  14   a  of the contact-type image scanner  14  is exposed. 
     The roller  16  is just an example as the pressing member, and it is preferable that the roller  16  is made of an elastic material. Being made of such an elastic material, the roller  16  changes its shape according to a shape of the card-like recording medium. As a result, without having any damage, the card-like recording medium can be pressed for sure in a direction toward the scanning surface  14   a.    
       FIG. 3A  is a cross-sectional view showing a mechanical composition of a section neighboring to the image scanner  14  of the information processing device  1  for a card-like recording medium according to the embodiment of the present invention.  FIG. 3B  is a magnified view of the section ‘X’ in  FIG. 3A . 
     In  FIGS. 3A and 3B , the first frame  11  includes a guide  11   a  (Refer to  FIG. 3B ) protruding into the path  10 . The guide  11   a  is so formed as to be gently sloped down as it comes close to the scanning surface  14   a;  i.e., a section of the guide  11   a  protrudes more into the first frame  11  than a guide tip  11   b  does. When traveling through the path  10 , the card-like recording medium passes along the guide  11   a , and subsequently it is so pressed by the roller  16  in a direction toward the scanning surface  14   a  as to travel while keeping a constant distance from the scanning surface  14   a . The guide  11   a  works to keep the constant distance of the card-like recording medium, traveling through the path  10 , from the scanning surface  14   a  so that information of the card-like recording medium can be read further correctly. 
     For correctly reading an image (information) recorded on the card-like recording medium, it is preferable to shorten the distance of the card-like recording medium from the scanning surface  14   a . However, shortening the distance of the card-like recording medium from the scanning surface  14   a  may bring the card-like recording medium in contact with the scanning surface  14   a . Then, repeating the travel of the card-like recording medium may possibly cause damages on the scanning surface  14   a . If once the scanning surface  14   a  has any damages, an image is read through the damages and it impairs correct reading. When the guide  11   a  protrudes into the path  10 , there can exist a distance between the card-like recording medium and the scanning surface  14   a . Thus, repeating the travel of the card-like recording medium does not cause any damage on the scanning surface  14   a , and therefore reading further correctly can be maintained. 
     As shown in  FIG. 3  and  FIG. 4 , a conductive member  17  is placed between the contact-type image scanner  14  and the read start sensor  20 .  FIG. 4  is a schematic view showing a composition of a section neighboring to the image scanner  14  of the information processing device  1  for a card-like recording medium according to the embodiment of the present invention. In  FIG. 4 , several components such as the first frame  11  and the guide  11   a  are not shown. The conductive member  17  is just an example as a means of removal of static electricity that removes static electricity charged in the card-like recording medium. 
     The conductive member  17  is so placed as to be present at the path  10 . Protrusions  17   a  (convex parts) of the conductive member  17  are positioned at an inner side (an upper side in  FIG. 3B ) of the first frame  11  in comparison with the scanning surface  14   a  of the contact-type image scanner  14  (See  FIG. 3B ). Thus, the card-like recording medium traveling through the path  10  is not damaged by the conductive member  17 , while the static electricity charged in the card-like recording medium is discharged to the conductive member  17  present at the path  10 . 
     Incidentally, it is preferable that, being compared with an adhesive surface  14   c  between the glass plate constituting the scanning surface  14   a  and the contact-type image scanner  14  (the adhesive surface  14   c  being most likely to attract static electricity), the protrusions  17   a  (convex parts) of the conductive member  17  are protruded further (positioned at a closer side) toward the path  10  (a side lower than the adhesive surface  14   c  in  FIG. 3B ). When the conductive member  17  is positioned at a closer side toward the path  10  in comparison with the adhesive surface  14   c , the conductive member  17  becomes prone to attract static electricity and prevents static electricity from breaking in through the adhesive surface  14   c  so that the static electricity can be discharged further surely. 
     The protrusions  17   a  (convex parts) of the conductive member  17  may be positioned so as to protrude further into the path  10  than the scanning surface  14   a  (at a position lower than the scanning surface  14   a  in  FIG. 3B ) while the position being at an inner side in the first frame  11  in comparison with the guide tip  11   b  of the guide  11   a  (i.e., a position upper than the guide tip  11   b  in  FIG. 3B ). When the conductive member  17  is positioned to be still closer toward the path  10 , the conductive member  17  becomes more prone to attract static electricity. 
     Thus, if the protrusions  17   a  (convex parts) of the conductive member  17  are protruded further (positioned at a closer side) toward the path  10  in comparison with the adhesive surface  14   c  of the contact-type image scanner  14  while the protrusions  17   a  being still at an inner side in the first frame  11  in comparison with the guide  11   a  as well as the guide tip  11   b  of the guide  11   a  so as to be positioned within a range ‘P’ shown in  FIG. 3B , the static electricity can be discharged further surely without causing any damage on the card-like recording medium. 
     The conductive member  17  is connected to the path  10  with a cable that is not shown. Meanwhile, by using another cable that is not shown, the path  10  is connected to a ground terminal of the control board  13  (a circuit board) placed in the first frame  11 . For grounding, the ground terminal of the control board  13  is connected to a frame ground for interface cables such as a USB cable. 
     Thus, using the conductive member  17  allows static electricity charged in the card-like recording medium to get discharged to the frame ground for sure. Therefore, the information processing device  1  for a card-like recording medium can be manufactured not with a conductive material but with an inexpensive material such as a resin. Eventually this disposition results in weight saving of the device and reduction in the production cost. Incidentally, the conductive member  17  is just an example as the neutralizing means. 
       FIGS. 5A through 5D  show a form of the conductive member  17 .  FIGS. 5A ,  5 B,  5 C, and  5 D are a perspective view, a plan view, an elevation view, and a side view, respectively, of the conductive member  17 . 
     In  FIGS. 5A through 5D , the conductive member  17  according to the present embodiment includes two protrusions  17   a  protruding in a direction toward the path  10 , and tips of the two protrusions  17   a  are pointed. Being equipped with the pointed tips, the protrusions can easily attract static electricity, and therefore the static electricity charged in the card-like recording medium can be discharged further effectively. Moreover, the conductive member  17  having multiple protrusions can attract static electricity more easily than any other conductive member having a single protrusion, and therefore static electricity can be discharged more effectively. 
     The conductive member  17  according to the present embodiment has a cutout  17   b,  being almost semicircular, in a mounting section to contact with the first frame  11  (Refer to  FIGS. 5A and 5B ). With the cutout  17   b , the conductive member  17  can be placed so as to surround the read start sensor  20  (Refer to  FIG. 1  and  FIG. 4 ). Accordingly, a distance between the read start sensor  20  and the contact-type image scanner  14  can be more shortened. An interval after detection by the read start sensor  20  until image capturing by the contact-type image scanner  14  can be shortened, and therefore power consumption can decrease. 
     When the distance between the read start sensor  20  and the contact-type image scanner  14  is shortened as described above; a distance from the conductive member  17 , located between the above-referenced two components, to the read start sensor  20  also becomes shortened. Accordingly, there appears a possibility that the static electricity discharged to the conductive member  17  is secondarily discharged to the read start sensor  20  to break down the sensor  20 . To avoid the danger, an insulating wall  18  made of an insulating material is placed between the read start sensor  20  and the conductive member  17  (See  FIG. 1  and  FIG. 3 ). In the present embodiment, the insulating wall  18  includes a cylindrical insulating material part surrounding the read start sensor  20  and an elevated part at a side of the conductive member  17 , for preventing the static electricity discharged to the conductive member  17  from being discharged secondarily to the read start sensor  20 . It is further preferable that the insulating wall  18  is taller than the conductive member  17 . 
     As described above, in the information processing device  1  for a card-like recording medium according to the embodiment of the present invention, the conductive member  17  placed between the contact-type image scanner  14  and the read start sensor  20  prevents the static electricity charged in the card-like recording medium from being discharged to the contact-type image scanner  14 , and therefore it enables prevention of malfunction and breakdown owing to the static electricity. 
     Since the conductive member  17  enables discharging the static electricity for sure, it becomes possible to construct the entire device with an inexpensive material such as a resin to result in weight saving and production cost reduction of the information processing device  1  for a card-like recording medium. 
     Furthermore, including the frames equipped with the guide  11   a  and the roller  16 , this disposition makes it possible to keep the distance between the scanning surface and the card-like recording medium constant at the time when the information processing device reads information recorded on the card-like recording medium, and ensures more precise scanning operation. 
     The processing device for a card-like recording medium according to the present invention is useful for its performance of preventing malfunction and breakdown of the imaging means owing to the static electricity charged in the card-like recording medium. 
     While the description above refers to particular embodiments of the present invention, it will be understood that many modifications may be made without departing from the spirit thereof. The accompanying claims are intended to cover such modifications as would fall within the true scope and spirit of the present invention. 
     The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.