JP2009301320A - Code symbol reader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely report occurrence of "double read" to an operator even in a noisy use environment, whereas even if the "double read" is reported to the operator by alarm sound, it is difficult for the operator to hear the sound in the noisy use environment. <P>SOLUTION: The bar code scanner 101 (code symbol reader) includes a plurality of reporting LEDs 121 (reporting light emission parts) provided on a reading window 103-side surface of a housing 102. When a reading part continuously outputs different commodity codes, the reporting LEDs 121 are caused to emit light one by one each predetermined time along a moving direction of commodities as a normal reporting operation, and when the reading part continuously outputs the same commodity code, the reporting LEDs 121 are caused to emit light in a manner different from the normal reporting operation as a failure reporting operation. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a code symbol reader for optically reading a product code attached to a product in the form of a code symbol.

  Conventionally, as an example of a code symbol reader, there is a barcode scanner capable of reading a product code attached to a product in the form of a barcode.

  The bar code scanner is of a hand-held type (see Patent Document 1) that is used by a POS terminal operator in hand, or a stationary type that is fixedly installed on a counter stand arranged adjacent to the POS terminal. The thing (refer patent document 2) is prevailing widely.

  Any type of bar code scanner is connected to the POS terminal and used, and the read product code data is output to the POS terminal. In the POS terminal, the unit price of the product specified by the product code output from the bar code scanner is acquired, and product sales data processing for calculating the settlement amount based on the unit price is executed.

  By the way, an operator using a POS terminal may accidentally cause the barcode scanner to continuously read the barcode of the same product (hereinafter referred to as “twice reading”). When “read twice” occurs, a product code of a product that should not be purchased is transmitted to the POS terminal, and an extra unit price is added to the settlement amount.

  Therefore, in order to notify the operator of the occurrence of “double reading”, a technique is known in which a specific notification sound is generated when “double reading” occurs.

Japanese Patent Laid-Open No. 11-232375 JP 2002-8143 A

  However, since bar code scanners are mostly used in noisy environments where there are many people such as supermarkets, it is very difficult for an operator to hear the notification sound when a “double reading” occurs. There is a problem. In this case, since the operator does not notice that “read twice” has occurred, an incorrect settlement amount is calculated at the POS terminal.

  An object of the present invention is to let an operator know the occurrence of “twice reading” even in a noisy usage environment.

  The code symbol reading device according to the present invention is provided on a housing provided on the counter stand, a reading window provided in the housing so as to face a reading area in which a product is moved, and a surface on the reading window side of the housing. A plurality of notification light emitting units and a product code attached in the form of a code symbol to a product that is provided in the housing and moves in the reading region by light irradiated from the reading window toward the reading region is optically provided. A reading unit that reads and outputs the product, and when the reading unit continuously outputs different product codes, the notification light-emitting unit is moved one by one along the moving direction of the product for a predetermined time as a normal notification operation. When the reading unit continuously outputs the same product code, the notification light emitting unit is emitted as an abnormality notification operation different from the normal notification operation. It was so as to.

  According to the present invention, even in an environment where it is difficult to hear the notification sound due to noise, the fact that the “reading twice” is made can be surely notified to the operator.

  Embodiments of the present invention will be described with reference to the drawings. The code symbol reader according to the present embodiment is a barcode scanner 101 that is used by being connected to the POS terminal 11 as a peripheral device of the POS terminal 11 used in the checkout system 1 in a supermarket or the like.

  FIG. 1 is a perspective view of a checkout system 1 including a POS terminal 11 and a barcode scanner 101. The checkout system 1 includes a POS terminal 11 placed on a checkout table 51 via a drawer 21, and a barcode scanner 101 as a code symbol reader connected to the POS terminal 11 so as to be able to transmit and receive data. It is constituted by.

  First, the POS terminal 11 will be described. The POS terminal 11 is connected to the drawer 21 and can control the opening operation of the drawer 21. Further, an input device 22 for an operator to input information and a display device 23 for displaying information are provided on the upper surface of the POS terminal 11. Further, the POS terminal 11 also includes a communication interface 24 (see FIG. 3) for executing data communication with the store computer SC (see FIG. 3). The store computer SC is installed in a store backyard or the like, and a product data file (not shown) is stored in the HDD (not shown). The product data file is a file that stores product information (unit price, product name, etc.) of a product specified by the product code in association with the product code.

  Next, the barcode scanner 101 will be described. The barcode scanner 101 is a stationary type fixed to a receiving surface 152 provided on the upper surface of a counter table 151 having a horizontally long table shape. The cargo receiving surface 152 is used to place a bag 153 for storing the product A. The bag 153 is conceptually a first bag 153a that is brought into the receiving surface 152 of the counter stand 151 to store the product A that the customer intends to purchase, and the barcode scanner 101 is sandwiched from the first bag 153a. It can be divided into the second ridge 153b positioned at the position. The first ridge 153a is positioned upstream of the customer flow direction, and the second ridge 153b is positioned downstream of the customer flow direction. The direction of customer flow is indicated by arrows in FIG.

  The barcode scanner 101 is of a vertical scanner type installed on the back side as viewed from the operator on the receiving surface 152 of the counter table 151. That is, the barcode scanner 101 includes a thin rectangular housing 102 having a wide width and a small depth, a reading window 103 is disposed in front of the housing 102, and an operation unit 104 is attached to the upper portion of the housing 102. Yes.

  The reading window 103 is formed on the front surface of the housing 102 so as to face the reading area RA for optically reading the barcode BC as a code symbol attached to the product A. In such an arrangement, the barcode BC reading area RA is positioned above the cargo receiving surface 152 that faces the reading window 103.

  The operation unit 104 is provided so as to extend toward the front side of the front surface of the housing 102, and has a shape in which the front portion is inclined downward. The operation unit 104 is provided with a display 106 on which a touch panel 105 is stacked. A keyboard 107 having a plurality of key tops arranged on a matrix is disposed on the right side of the display 106. Yes. In FIG. 1, the vertically long groove shown on the right side of the keyboard 107 is a card reading groove 108 of a card reader (not shown) for reading a magnetic card such as a credit card. Further, a customer display 109 for providing information to the customer is installed on the left rear side of the operation unit 104 as viewed from the operator.

  FIG. 2 is a front view showing the barcode scanner 101. In FIG. 2, the upper and lower portions of the operation unit 104 and the housing 102 included in the barcode scanner 101 are omitted (the same applies to FIGS. 5 and 6). As shown in FIG. 2, a frame 111 having a rounded square shape is provided around the reading window 103 in the housing 102. In the lower part of the frame 111, six notification LEDs 121 serving as notification light emitting units are arranged at equal intervals along the reading window 103. Each notification LED 121 is an LED capable of emitting blue and red light, and is controlled by the notification LED control unit 173 (see FIG. 3).

  In the present embodiment, the notification LED 121 is arranged on the lower side of the reading window 103, so that an operator in a posture looking down at the reading window 103 is not obstructed by the front of the operation unit 104 without blocking the field of view. LED 121 can be visually recognized.

  A speaker opening 112 is formed at the lower left of the frame 111. A speaker 174 (see FIG. 3) is built in the back side of the speaker opening 112.

  Further, on the back side of the reading window 103, a light source LED 164 (see FIG. 3) that emits light to the reading area RA under the control of the light source LED control unit 165 (see FIG. 3) is built in the housing 102. Is provided. A CCD sensor 166 (see FIG. 3) that receives reflected light from the bar code BC attached to the product A positioned in the reading area RA is also provided on the back side of the reading window 103.

  FIG. 3 is a block diagram showing the hardware configuration of the POS terminal 11 and the barcode scanner 101.

  First, the POS terminal 11 will be described. The POS terminal 11 includes a CPU 61 that executes various arithmetic processes and controls each unit. The CPU 61 is bus-connected to a ROM 62 that fixedly stores fixed data such as programs, a RAM 63 that stores variable data in a rewritable manner and is used as a work area, and an HDD 64.

  The drawer 61, the input device 22, the display device 23, and the communication interface 24 described above are all connected to the CPU 61 of the POS terminal 11 via various input / output circuits (all not shown), and the CPU 61 controls the operation. Is done.

  The HDD 64 stores programs and various files (none of which are shown). An example of a program stored in the HDD 64 is a product sales data processing program (not shown). An example of a file stored in the HDD 64 is a product data file (not shown) distributed and stored from the store computer SC. The programs and various files stored in the HDD 64 are used by copying all or a part of the programs and various files to the RAM 63 when the POS terminal 11 is activated.

  The CPU 61 of the POS terminal 11 of the present embodiment executes merchandise sales data processing in the transaction according to the program. The merchandise sales data process is a process of acquiring merchandise information including a unit price based on the merchandise code output from the barcode scanner 101 and calculating a settlement amount.

  The CPU 61 of the POS terminal 11 is connected to a connection interface 65 that connects to the barcode scanner 101 and enables data transmission / reception with the barcode scanner 101.

  Next, the barcode scanner 101 will be described. The barcode scanner 101 includes a CPU 161 as an information processing unit that executes various arithmetic processes and controls each unit. The CPU 161 is bus-connected to a ROM 162 that stores fixed data in a fixed manner and a RAM 163 that stores variable data in a rewritable manner and is used as a work area.

  An example of fixed data stored in the ROM 162 is a program executed by the CPU 161. Furthermore, the ROM 162 also stores notification sound data output as notification sound from the speaker 174 as fixed data. In the present embodiment, two types of notification sound data with different notification sounds output from the speaker 174 are stored in the ROM 162. One is called “normal notification sound (data)” and the other is called “abnormal notification sound (data)”. The difference between the normal notification sound and the abnormal notification sound is, for example, a timbre.

  The RAM 163 has a storage area 163a in which product code data is temporarily stored. The storage area 163a of the present embodiment enables data storage of only one product code. Accordingly, the product code data is overwritten and stored in the storage area 163a. That is, the latest product code is stored in the storage area 163a.

  The CPU 161 of the bar code scanner 101 includes the above-described operation unit 104, the light source LED control unit 165 connected to the light source LED 164, the notification LED control unit 173 connected to the notification LED 121, and the speaker 174. They are connected via an output circuit (both not shown), and their operation is controlled by the CPU 161.

  In addition, an A / D converter 167 and a decoder 168 to which a CCD sensor 166 is connected are connected to the CPU 161 of the barcode scanner 101. The A / D converter 167 converts the electrical signal received from the CCD sensor 166 into a digital signal by an amplifier circuit and a digital conversion circuit (both not shown). The decoding unit 168 decodes the converted digital signal into a product code and outputs the product code to the CPU 161.

  Further, the CPU 161 of the barcode scanner 101 is connected to a connection interface 175 that connects to the connection interface 65 of the POS terminal and enables data transmission / reception with the POS terminal 11. As a result, the barcode scanner 101 can output the decoded product code data to the POS terminal 11.

  In such a configuration, the operator picks up the product A stored in the first bag 153a and positions the product A in the reading area RA with the attached barcode BC facing the reading window 103. At this time, light is emitted from the light source LED 164 and the reflected light of the barcode BC is received by the CCD sensor 166 and decoded by the decoding unit 168 into a product code. In this way, the operator causes the barcode scanner 101 to read the product code attached to the product as the barcode BC. After that, the operator puts the product A whose product code is read into the second basket 153b. The product code data read by the barcode scanner 101 is transmitted to the POS terminal 11. The CPU 61 of the POS terminal 11 acquires a corresponding unit price from the product data file based on the product code, and executes a process (product sales data process) for calculating a settlement amount based on the unit price.

  Details of processing executed by the CPU 161 of the barcode scanner 101 in accordance with a program stored in the ROM 162 will be described with reference to FIG.

  FIG. 4 is a flowchart showing the flow of processing executed by the barcode scanner 101. The product code decoded by the decoding unit 168 is output to the CPU 161. When acquiring the product code data output from the decoding unit 168 (step S101), the CPU 161 attempts to store the product code data in the storage area 163a of the RAM 163. At this time, if the product code data is not stored in the storage area 163a (N in step S102), the CPU 161 stores the product code acquired in step S101 in the storage area 163a (step S103). Transmission is output to the POS terminal 11 via the connection interface 175 (step S104).

  In the POS terminal 11, when the product code data transmitted from the barcode scanner 101 is received via the connection interface 65, the CPU 61 stores the received product code in the RAM 63. The product code data transmitted from the barcode scanner 101 during one transaction is sequentially stored in the RAM 63 of the POS terminal 11 without being overwritten.

  Next, the CPU 161 of the barcode scanner 101 causes the speaker 174 to output a normal notification sound based on the normal notification sound data stored in the ROM 162 (step S105). Then, the CPU 161 of the barcode scanner 101 drives and controls the notification LED control unit 173, and causes the notification LED control unit 173 to perform a normal notification operation (step S106).

  FIG. 5 is a front view showing the barcode scanner 101 in a state in which the notification LED 121 performs a normal notification operation. As a normal notification operation, the six notification LEDs 121 receive the control of the notification LED control unit 173 and emit blue light one by one in order from the rightmost one. That is, the notification LED 121 emits light one by one in a predetermined time in the same direction as the product A moves in the reading area RA for reading the barcode BC. In FIG. 5, this direction is indicated by an arrow.

  FIG. 5 shows a moment when the second notification LED 121 from the right is lit in blue. When the lighting of the notification LED 121 disappears, the third notification LED 121 from the adjacent right turns on in blue and disappears.

  By performing such a normal notification operation, it looks as if the blue light emission is moving from the right to the left for the person (operator) viewing the notification LED 121.

  In the present embodiment, the six notification LEDs 121 can be made to emit blue light one by one in order from the leftmost one under the control of the notification LED control unit 173. Such direction switching can be performed by operating a changeover switch (not shown) provided in the barcode scanner 101. Accordingly, even when the product A is moved from left to right according to the layout of the barcode scanner 101, the direction in which the notification LED 121 moves can be made to correspond.

  Returning to the description of FIG. When the product code acquired in step S101 is stored in the storage area 163a and the product code data is already stored in the storage area 163a (Y in step S102), the CPU 161 of the barcode scanner 101 is stored. Performs the twice reading determination process (step S111). The double reading determination process is a process of determining whether or not the product code acquired in step S101 is the same as the product code stored in the storage area 163a.

  As a result of the twice reading determination process in step S111, when it is determined that the acquired product code and the product code in the storage area 163a are not the same (N in step S112), the same processing as the processing described above is performed. Executed. That is, the CPU 161 of the barcode scanner 101 stores the acquired product code data in the storage area 163a (step S103), and transmits it to the POS terminal 11 via the connection interface 175 (step S104). A notification sound is output (step S105), and the notification LED 121 is caused to perform a normal notification operation (step S106). At this time, in step S103, since the product code data is already stored in the storage area 163a, the product code data is overwritten and stored in the storage area 163a.

  On the other hand, when it is determined that the acquired product code is the same as the product code in the storage area 163a as a result of the double reading determination process in step S111 (Y in step S112), the CPU 161 determines the acquired product code. The data is overwritten and stored in the storage area 163a (step S113), and this product code is transmitted and output to the POS terminal 11 via the connection interface 175 (step S114).

  Next, the CPU 161 of the barcode scanner 101 causes the speaker 174 to output an abnormality notification sound based on the abnormality notification sound data stored in the ROM 162 (step S115). Furthermore, the CPU 161 drives and controls the notification LED control unit 173, and causes the notification LED control unit 173 to perform an abnormality notification operation on the notification LED 121 (step S116).

  FIG. 6 is a front view showing the barcode scanner 101 in a state in which the notification LED 121 performs an abnormality notification operation. As the abnormality notification operation, the six notification LEDs 121 receive the control of the notification LED control unit 173, and all the six LEDs 121 flash in red for a predetermined time. FIG. 6 shows the moment when the notification LED 121 is lit red. By performing such an abnormality notification operation, a person (operator) viewing the notification LED 121 looks as if the line emitting red light is blinking.

  Further, not only the notification LED 121 but also the display 106 of the operation unit 104 may perform a normal notification operation and an abnormality notification operation.

  FIG. 7 is a schematic diagram illustrating a screen display example of the display 106 of the operation unit 104. In FIG. 7, other information displayed on the display 106 during the transaction is omitted.

  FIG. 7A shows a state in which a normal notification operation is performed. As a normal notification operation, an arrow image 191 having a left-pointing arrow shape is displayed in the lower area of the display 106, and this arrow image 191 is a direction in which the product A moves in the reading area RA by the operator's hand (from right to left). ) In the same direction. An arrow image 191 indicated by a broken line in FIG. 7A indicates a movement locus of the arrow image 191. Further, the moving direction is indicated by an arrow. In step S106 of the flowchart of FIG. 4, the CPU 161 of the barcode scanner 101 drives and controls the operation unit 104 to cause the display 106 to perform such a normal notification operation.

  FIG. 7B shows a state in which an abnormality notification operation is performed. As an abnormality notification operation, a plurality of rectangular images 192 arranged in the left-right direction are displayed blinking for a certain time in the lower area of the display 106. In step S116 of the flowchart of FIG. 4, the CPU 161 of the barcode scanner 101 drives and controls the operation unit 104 to cause the display 106 to perform such an abnormality notification operation. In addition, the alerting | reporting aspect about abnormality alerting | reporting operation | movement is not restricted to this. For example, in the notification mode in which the arrow image 191 shown in FIG. 7A is displayed in the opposite direction (rightward), and the product is moved in the opposite direction (from left to right) with respect to the movement direction of the product A. There may be. With such a notification mode, the operator is made aware of the re-reading operation.

  As described above, since the normal notification operation and the abnormality notification operation are also performed on the display 106 provided in the operation unit 104, the operator can more reliably recognize the fact that “read twice” has occurred.

  The customer display 109 may also perform a normal notification operation and an abnormality notification operation. According to this, it becomes possible to inform the customer of the fact that “reading twice” has been made, and it can be expected that the reliability of the customer in the store is increased.

  As described above, according to the present embodiment, the operator can visually recognize the occurrence of “twice reading” even in an environment where it is difficult to hear the notification sound due to noise. That is, the fact of “read twice” can be surely notified to the operator.

  Here, the mode of the notification operation in the present embodiment is compared with another mode. For example, a mode in which only one LED capable of emitting blue and red light is provided in the housing 102, the single LED is lit in blue as a normal notification operation, and red is lit as an abnormality notification operation is a comparative example. In the case of this comparative example, the difference between the normal notification operation and the abnormality notification operation is only the difference in emission color. For this reason, the operator may be confused as to which light emission color was the normal notification operation. However, in the present embodiment, the normal notification operation is such that the light emission of the notification LED 121 moves in a direction interlocked with the direction in which the product A (or the hand of the operator holding the product A) moves. It is easy to recognize the notification operation. Furthermore, an abnormality notification operation that does not involve movement, such as the normal notification operation, can be instantly recognized by the contrast of the operation mode.

  By the way, when the customer purchases two or more of the same products A (when two or more of the same products A of the first basket 153a are stored), the barcode BC of the same product A is continuously barcoded. The scanner 101 may be read. That is, there are many cases where the operator deliberately generates “read twice”. However, since the alarm notification operation of the present embodiment is not a warning display that makes the operator feel a sense of crisis, even if the operator deliberately generates “twice reading”, There is no sense of discomfort due to the abnormal notification operation performed in some cases.

  In the flowchart of FIG. 4, when one transaction is completed, the CPU 161 of the barcode scanner 101 clears the storage area 163a so that the product code data is not stored in the storage area 163a. Here, in order for the CPU 161 of the barcode scanner 101 to recognize the end of one transaction, when the execution of the merchandise sales data processing is completed at the POS terminal 11, a signal to that effect is sent from the POS terminal 11 to the barcode scanner 101. Should be sent to. As a result, when one transaction is started, the product code data is not stored in the storage area 163a of the RAM 163 of the barcode scanner 101.

  Next, a description will be given of the two-time reading cancellation process executed by the CPU 161 of the barcode scanner 101 according to the present embodiment in accordance with a program stored in the ROM 162.

  If the operator erroneously “reads” the same barcode BC twice, the product code data decoded from the barcode BC is transmitted from the barcode scanner 101 to the POS terminal 11 (in the flowchart of FIG. 4). In step S114, the CPU 61 of the POS terminal 11 stores the data in the RAM 63.

  Therefore, the twice read erasure process of the present embodiment is to erase the data of the extra product code that has been stored in the RAM 63 of the POS terminal 11 by such “twice read”. This is a process executed by an operation on the barcode scanner 101 instead of the POS terminal 11.

  FIG. 8 is a flowchart of the twice reading cancellation process. When the acquired product code is the same as the product code stored in the storage area 163a (see Y in step S112 in the flowchart of FIG. 4), the CPU 161 of the barcode scanner 101 reads twice on the display 106. A declaration display for declaring is displayed (step S201).

  As an example, the declaration display is an image including a character string “Take reading twice, please touch if canceled” in a rectangular frame. This declaration display appears at a predetermined position on the screen of the display 106. When the operator recognizes that “reading twice” has been mistakenly performed, the operator touches the touch panel 105 corresponding to the display area of the declaration display.

  At this time, in the storage area 163a of the RAM 163 of the barcode scanner 101, product code data based on “read twice” is overwritten and stored (see step S113 in the flowchart of FIG. 4). This product code is the latest product code output from the decoding unit 168.

  When the touch cancellation operation is performed on the touch panel 105 corresponding to the declaration display and the reading cancellation declaration is made twice (Y in step S202), the CPU 161 changes the “reading twice” stored in the storage area 163a. Data of the product code based on that (that is, the latest product code) is acquired, and data indicating that this product code is unnecessary is transmitted to the POS terminal 11 and output. More specifically, a command for deleting the product code data from the RAM 63 of the POS terminal 11 is generated on the assumption that the product code is unnecessary, and the generated command data is transmitted to the POS terminal 11 via the connection interface 175. Is transmitted and output (step S203). When the CPU 61 of the POS terminal 11 receives the command, the CPU 61 executes a process of erasing the product code data designated by the received command from the RAM 63.

  If the CPU 161 determines that the declaration display has not been touched for a certain period of time, or has determined that the data for the next product code has been acquired before the touch operation, the read-out declaration has not been made twice. As a result (N in step S202), the process is terminated.

  Conventionally, when “read twice” has been made, the operator causes the barcode scanner 101 to read the barcode BC that has been “read twice”, and decodes it into a product code, and the data of the product code. An operation for deleting from the RAM 63 of the POS terminal 11 is performed.

  However, according to the present embodiment, since it is not necessary to read the barcode BC again, the burden of work to be performed when “reading twice” is erroneously reduced.

1 is a perspective view of a checkout system including a POS terminal and a barcode scanner. FIG. It is a front view which shows a barcode scanner. It is a block diagram which shows the hardware constitutions of a POS terminal and a barcode scanner. It is a flowchart which shows the flow of the process performed with a barcode scanner. It is a front view showing a bar code scanner in a state where a notification LED performs a normal notification operation. It is a front view which shows the barcode scanner of the state which LED for notification performs abnormality alerting | reporting operation | movement. It is a schematic diagram which shows the example of a screen display of the display of an operation part. It is a flowchart of twice reading cancellation processing.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... POS terminal (product sales data processing apparatus), 101 ... Bar code scanner (code symbol reader), 102 ... Housing, 103 ... Reading window, 104 ... Operation part, 105 ... Touch panel, 106 ... Display (display part), 121 ... Notification LED (Notification Light Emitting Unit), 151 ... Counter Stand, 164 ... Light Source LED (Reading Unit), 166 ... CCD Sensor (Reading Unit), 167 ... A / D Conversion Unit (Reading Unit), 168 ... Decoding unit (reading unit), 175 ... Connection interface (transmission / reception unit), A ... Product, BC ... Bar code (code symbol), RA ... Reading area

Claims (5)

A housing installed on the counter stand;
A reading window provided in the housing so as to face a reading area for moving a product;
A plurality of notification light emitting portions provided on the surface of the housing on the side of the reading window;
A reading unit that is provided in the housing and optically reads and outputs a product code attached in the form of a code symbol to a product that moves through the reading region by light irradiated from the reading window toward the reading region;
When the reading unit continuously outputs different product codes, as a normal notification operation, the notification light emitting unit is caused to emit light one by one along the movement direction of the product, and the reading unit is the same Means for causing the notification light emitting part to emit light different from the normal notification operation as an abnormality notification operation when the product code is continuously output;
A code symbol reader. A display unit provided at an upper end of the housing and extending toward the operator side of the surface of the housing on the side of the reading window and having a front portion inclined downwardly and displaying information on the inclined upper surface; Having an operation unit having,
The code symbol reader according to claim 1. The notification light emitting unit is disposed below the reading window.
The code symbol reader according to claim 2. When the reading unit continuously outputs different product codes, the display unit displays an image that moves along the moving direction of the product as a normal notification operation, and the reading unit continuously outputs the same product code. Differently from the normal notification operation as an abnormality notification operation, an image is displayed on the display unit.
The code symbol reader according to claim 3. A touch panel laminated on a display screen of the display unit;
A transmission / reception unit connected to the product sales data processing device to enable data communication with the product sales data processing device;
Means for transmitting the product code data output by the reading unit to the product sales data processing device via the transmission / reception unit;
Means for displaying a declaration display for declaring read-out twice on the display unit when the reading unit continuously outputs the same product code;
When the reading cancellation declaration is made twice by touching the area of the touch panel corresponding to the declaration display, the data indicating that the latest product code output by the reading unit is an unnecessary product code, Means for transmitting to the merchandise sales data processing device via a transceiver;
The code symbol reader according to claim 4.

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