JP5239330B2 - Product sales data processing device - Google Patents

Description

  The present invention relates to a merchandise sales data processing apparatus in which a customer himself performs an operation for reading data attached to a merchandise and performs settlement with electronic money stored in an IC chip based on the read data.

Product sales data processing devices (self-checkout registers) have been developed that allow customers to register purchased products without going through a store clerk at a convenience store, etc., and to pay for electronic money without using cash. . For example, Patent Document 1 describes a merchandise sales data processing apparatus that enables self-checkout using a non-contact type IC card on which an IC chip is mounted.
JP 2006-59302 A

  In the conventional merchandise sales data processing device, the processing for merchandise registration is started only when the IC card or the like is positioned at a predetermined place for reading the balance data stored in the IC chip, and the balance data is read from the IC chip. The balance is displayed on the display unit facing the customer. For this reason, there is a possibility that the balance is displayed even if the IC card or the like is mistakenly positioned at a predetermined place, and the balance is viewed by another person, even though shopping is not performed.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a merchandise sales data processing apparatus that can prevent a balance display unintended by a customer.

The present invention has been made to solve the above-mentioned problems, and the customer himself performs an operation for reading the data attached to the merchandise and stores the data in the non-contact type IC chip based on the read data. In the merchandise sales data processing apparatus that performs settlement with the electronic money that has been placed, a placement unit that places the electronic money medium including the contactless IC chip that stores balance data, and the electronic money medium is the placement unit described above A reader / writer unit that reads the balance data from the non-contact IC chip and rewrites the balance data at the time of payment, a start button for the customer himself to input a product registration start instruction, a display unit for displaying various information, is the electronic money medium is placed on the mounting section, and, when the start instruction of the product registration is input by the start button, the A first control unit for controlling so as to display a balance based on the balance data read by Daraita unit on the display unit, after the start button has been operated, said electronic money medium within a predetermined time before A product sales data processing apparatus comprising: a second control unit that displays the balance when it is detected that the product is placed on a description unit, and enables reading of a product code .

According to the present invention, the balance is displayed on the display unit when the electronic money medium is placed on the placement unit and the start instruction of the product registration is input with the start button. Can be prevented. Note that the balance is displayed on the display unit when both conditions are satisfied, regardless of the order of placement of the electronic money medium on the placement unit and the input of the start instruction for product registration.

In the commodity sales data processing apparatus of the present invention, the display unit is configured to display a key that can be operated by a customer, and the electronic money medium is placed on the placement unit. When the start instruction for registering the product is input with the start button, the control unit further displays information for prompting an operation for reading data attached to the product on the display unit. Control is performed so that a registration key for registering a product to which no data is attached is displayed on the display unit.

  According to the present invention, the display unit is controlled to display information prompting an operation for reading data attached to a product, and a registration key for registering a product without data attached to the display unit. By controlling the display so that the product is displayed, the customer can register the product even when purchasing the product without data.

  In the merchandise sales data processing apparatus of the present invention, the registration key is a key for registering a newspaper.

  According to the present invention, even when a newspaper to which no data is attached is purchased, the customer himself can register the product.

  In the product sales data processing apparatus of the present invention, when an operation for reading data attached to a product is performed, when the total price of the product exceeds a balance based on the balance data, the control unit Is characterized by invalidating the last read data.

  According to the present invention, when the total price of the product exceeds the balance based on the balance data, the customer purchases the product so that the total price is within the balance by invalidating the last read data. It can be carried out.

  In the product sales data processing apparatus of the present invention, when an operation for reading data attached to a product is performed, when the total price of the product exceeds a balance based on the balance data, the control unit Is characterized by invalidating all read data.

  According to the present invention, when the total amount of the product exceeds the balance based on the balance data, the customer re-registers the product from the beginning by invalidating all the read data, and the product having a high purchase priority. Can be purchased so that the total amount is within the balance.

Further, the product sales data processing apparatus of the present invention is configured so that the electronic money medium is placed on the placement unit, and the product registration start instruction is input with the start button before the settlement is completed. When the electronic money medium is removed from the unit, the control unit executes a process for issuing an alarm.

  According to the present invention, it is possible to improve the settlement efficiency by preventing an unnecessary operation for the customer to remove the electronic money medium during product registration.

In the product sales data processing apparatus of the present invention, the control unit may be configured to place the electronic money medium on the placement unit or before the start instruction for the product registration is input with the start button. A control is performed such that a plurality of images indicating an operation method taught to a user are displayed on the display unit in order.

  ADVANTAGE OF THE INVENTION According to this invention, the operation method of an apparatus can be told to a user more easily by displaying on a display part the several image which shows the operation method taught with respect to a user in order.

In the product sales data processing apparatus of the present invention, the control unit may be configured to place the electronic money medium on the placement unit or before the start instruction for the product registration is input with the start button. The display unit is controlled to simultaneously display a plurality of images indicating an operation method taught to a user.

  According to the present invention, by simultaneously displaying a plurality of images indicating the operation method taught to the user on the display unit, it is possible to convey the operation method of the apparatus to the user in an easy-to-understand manner.

In the product sales data processing apparatus of the present invention, the control unit may be configured to place the electronic money medium on the placement unit and before the start instruction for the product registration is input with the start button. The first image is displayed on the display unit, the electronic money medium is placed on the placement unit, and the product registration start instruction is input with the start button. Control is performed to display the second image on the display unit, and a predetermined time elapses before the electronic money medium is placed on the placement unit after the second image is displayed on the display unit. In this case, the first image is controlled to be displayed again on the display unit.

  According to the present invention, the first image is displayed again on the display unit when a predetermined time elapses before the electronic money medium is placed on the placement unit after the second image is displayed on the display unit. By controlling in this way, even when the customer stops the operation of the apparatus halfway and leaves the place, the display unit can return to the state in which the first image is displayed.

According to the present invention, the balance is displayed on the display unit when the electronic money medium is placed on the placement unit and the start instruction of the product registration is input with the start button. The effect that it can prevent is acquired.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a merchandise sales data processing apparatus according to an embodiment of the present invention. A merchandise sales data processing apparatus 1 shown in FIG. 1 includes a CPU 100, a hard disk unit 102, a RAM (Random Access Memory) 104, a touch panel 106, a receipt printing unit 108, a scanner unit 110, a reader / writer unit 112, And a mounting portion 114. The CPU 100, the hard disk unit 102, the RAM 104, the touch panel 106, the receipt printing unit 108, the scanner unit 110, and the reader / writer unit 112 are connected via a bus line 120.

  CPU100 performs various calculations and controls each part in the merchandise sales data processing apparatus 1 based on a calculation result. The hard disk unit 102 is a readable / writable large-capacity storage unit, and stores a program for realizing each function of the commodity sales data processing apparatus 1. The hard disk unit 102 stores various data such as product data having data such as product codes, product names, and prices. The RAM 104 is a readable / writable storage means, such as registered product data having data such as product codes, product names, prices, etc. of products registered by the customer for purchase, product data read from the hard disk unit 102, and the like. Various data used by the CPU 100 is stored.

  The touch panel 106 is configured such that the customer himself / herself can input various types of information by touching the display screen. The display unit 106a includes a screen such as a liquid crystal display for displaying various types of information to the customer. And an input unit 106b including a contact sensor for detecting various information input operations by the customer himself / herself. The receipt printing unit 108 includes a printing unit, and prints the details of the purchased product on a predetermined receipt sheet in accordance with an instruction from the CPU 100. This printing means may use ink, or may not use ink, such as those using thermal paper.

  The scanner unit 110 is a barcode scanner and reads a barcode attached to a product. When the customer puts the barcode attached to the product over the scanner unit 110, the scanner unit 110 reads the barcode information and outputs the read information to the CPU 100. The reader / writer unit 112 is arranged directly below the placement unit 114, reads the balance data from the electronic money medium 2 placed on the placement unit 114, and rewrites the balance data at the time of settlement. The placement unit 114 is disposed in an inclined manner, and has a recess for maintaining the card at the lower end thereof, and is configured so that the electronic money medium 2 can be placed thereon. However, the position and orientation of the placement unit 114 are not limited and may be parallel to the table on which the scanner unit 110 is placed. The electronic money medium 2 placed on the placement unit 114 is an IC card or a mobile phone terminal having an IC chip for storing balance data as electronic money.

  Next, the operation of the merchandise sales data processing apparatus 1 will be described with reference to the screens (FIGS. 2 to 7) displayed on the display unit 106a of the touch panel 106. FIG. In the initial state, the display unit 106a displays the screen shown in FIG. Data necessary for screen display is stored in the hard disk unit 102, and the CPU 100 reads the data from the hard disk unit 102 and stores it in the RAM 104. Further, the CPU 100 appropriately processes the data stored in the RAM 104 and outputs it as display data to the display unit 106a. The display unit 106a displays a screen based on the display data. With the above operation, a screen as shown in FIG. 2 is displayed. Thereafter, the operation when other screens are displayed is the same.

  When a customer purchases a product, the customer places the electronic money medium 2 on the placement unit 114 and subsequently presses the shopping start button 200 to start product registration. When the shopping start button 200 is pressed, a signal corresponding to the pressing is output from the input unit 106b to the CPU 100. Based on the signal, CPU 100 detects that shopping start button 200 has been pressed and a product registration start instruction has been input. Further, the CPU 100 determines whether or not the electronic money medium 2 is placed on the placement unit 114. With respect to this determination, it may be determined whether or not the electronic money medium 2 can be accessed via the reader / writer unit 112, or a contact sensor is provided in the mounting unit 114, and the determination is made based on the output signal of the contact sensor. May be performed.

  When determining that the electronic money medium 2 is placed on the placement unit 114 and detecting that a product registration start instruction is input, the CPU 100 displays the screen shown in FIG. The display unit 106a is controlled. Therefore, even if the electronic money medium 2 is placed on the placement unit 114, if the shopping start button 200 is not pressed, the screen of the display unit 106a remains as in FIG. Further, even if the shopping start button 200 is pressed, if the electronic money medium 2 is not placed on the placement unit 114, the screen of the display unit 106a remains as in FIG. 2, or an error screen (or alarm display). Screen).

  As shown in FIG. 3, the display unit 106 a displays a screen including a message 300 and a newspaper button 310. The message 300 is a message that prompts the customer to bring the barcode attached to the product closer to the place where the scanner unit 110 is disposed (message that prompts an operation for reading the data attached to the product). is there. The newspaper button 310 is a button for registering a newspaper with no barcode attached thereto.

  Further, the CPU 100 accesses the electronic money medium 2 via the reader / writer unit 112 and reads balance data stored in the IC chip in the electronic money medium 2. The balance data read from the IC chip is stored in the RAM 104 and output to the display unit 106a. As shown in FIG. 3, the display unit 106a displays the balance indicated by the balance data.

  When the customer brings the product closer to the scanner unit 110, the scanner unit 110 reads the barcode information (product code) attached to the product and outputs it to the CPU 100. When it is detected that the product code has been read, the CPU 100 controls the display unit 106a to display the product registration screen shown in FIG. Further, the CPU 100 reads product data from the hard disk unit 102 and stores it in the RAM 104.

  The CPU 100 compares the product code in the product data stored in the RAM 104 with the product code read by the scanner unit 110, and if they match, the product name and price data associated with the product code. Is output to the display unit 106a. The display unit 106a displays the product name and price of the product based on the data. In addition, the CPU 100 stores registered product data including the product code, product name, and price of the product registered in the RAM 104. Further, the CPU 100 stores the price of the product registered in the product as total data in the RAM 104 and outputs it to the display unit 106a. The display unit 106a displays the total amount based on the total data.

  Subsequently, when the customer brings the next product closer to the scanner unit 110, the product code is read in the same manner as described above, and the CPU 100 outputs the product name and price data corresponding to the read product code to the display unit 106a. To do. Further, the CPU 100 adds the data of the newly registered product to the registered product data in the RAM 104. Further, the CPU 100 updates the total data by adding the price of the newly registered product to the total amount indicated by the total data stored in the RAM 104. The updated total data is stored in the RAM 104 and output to the display unit 106a. The display unit 106a displays the product name and price of the newly registered product, and displays the updated total amount. In FIG. 4, only information on one product is displayed, but when product registration of a plurality of products is performed, information on the plurality of products is displayed.

  As shown in FIG. 4, the display unit 106 a displays buttons including a checkout button 400 and a newspaper button 410 during product registration. When registration of all products is completed, the customer presses the checkout button 400. In addition, when a newspaper without a barcode is registered during product registration, the customer presses the newspaper button 410.

  When the checkout button 400 is pressed, the CPU 100 detects that the checkout button 400 is pressed and a settlement instruction is input based on a signal output from the input unit 106b. When it is detected that the payment instruction is input, the CPU 100 controls the display unit 106a to display the payment screen shown in FIG. At this time, the CPU 100 reads the balance data and the total data stored in the RAM 104, subtracts the total amount indicated by the total data from the balance indicated by the balance data (the balance before transaction), and the balance after the subtraction (the balance after the transaction). Are output to the display unit 106a. The display unit 106a displays a post-transaction balance based on this data. In addition, the CPU 100 rewrites the balance data stored in the electronic money medium 2 with post-transaction balance data via the reader / writer unit 112.

  Further, the CPU 100 reads the registered product data from the RAM 104 and outputs it to the receipt printing unit 108. The receipt printing unit 108 prints the details of the product purchased by the customer on the receipt paper based on the registered product data.

  On the other hand, when the customer himself presses the newspaper button 310 of FIG. 3 or the newspaper button 410 of FIG. 4, the display unit 106a displays the screen shown in FIG. On this screen, a button for designating the genre of the newspaper is displayed. When the customer himself presses any button, the display unit 106a displays the screen shown in FIG. On this screen, a button for designating a newspaper included in the genre designated on the screen shown in FIG. 6 is displayed. When the customer himself presses any button, the CPU 100 detects which newspaper is designated based on the signal output from the input unit 106b.

  When any button is pressed on the screen shown in FIG. 7, the display unit 106a displays a product registration screen similar to the screen shown in FIG. At this time, the CPU 100 outputs newspaper name and price data corresponding to the designated newspaper product code to the display unit 106a. In addition, the CPU 100 adds the data of the newly registered newspaper to the registered product data in the RAM 104. Furthermore, the CPU 100 updates the total data stored in the RAM 104, and outputs the updated total data to the display unit 106a. The display unit 106a displays the newspaper name and price of the newly registered newspaper, and displays the updated total amount.

  In addition, while the product registration operation is performed by the customer himself, the CPU 100 reads the balance data stored in the RAM 104 and the updated total data every time a new product is registered, and the balance data is The balance shown is compared with the total amount indicated by the updated total data. As a result of the comparison, when the balance is equal to or greater than the total amount (when the total amount is equal to or less than the balance), the CPU 100 determines that the product registration operation is valid.

  On the other hand, when the balance is less than the total amount as a result of the above comparison (when the total amount exceeds the balance), the CPU 100 invalidates the product registration operation that has read the data last (in other words, And the last read data is invalid). In this case, the CPU 100 returns the updated total data to the state before the update, and deletes (deletes) the data regarding the product for which the data has been read last from the registered product data.

  Alternatively, the following may be used. When the balance is less than the total amount (when the total amount exceeds the balance), the CPU 100 controls the display unit 106a to display a message or the like indicating that the product registration is canceled due to the lack of the balance. In addition, the CPU 100 controls the display unit 106a to display a button for inputting an instruction to return the screen to the initial state (FIG. 2). When it is detected that the button displayed on the screen is pressed and an instruction to return the screen to the initial state is input, the CPU 100 controls the display unit 106a to display the screen in the initial state. Even when it is detected that the button has not been pressed within a certain period of time after the above button is displayed, the CPU 100 controls the display unit 106a to display the initial screen.

  Further, the CPU 100 determines that all the product registration operations that have read the data are invalid (in other words, all the read data are invalid), deletes (deletes) the total data, and deletes the data. All data related to the read product is deleted (erased) from the registered product data. After the initial screen is displayed, the product registration can be performed again from the beginning in the same manner as described above. If the product whose data was read last is a product with a high purchase priority for the user, all the operations for registering the products that read the data are not invalidated. By invalidating and re-registering the product from the beginning, it is possible to purchase the product so that the product with a high purchase priority is included and the total amount is within the balance.

  2 until the checkout button 400 in FIG. 4 is pressed, that is, in the state where the product registration operation is in progress and before the settlement is completed, the CPU 100 It is periodically determined whether or not the electronic money medium 2 is placed on the unit 114. When it is determined that the electronic money medium 2 is not placed on the placement unit 114, the CPU 100 executes a process for issuing an alarm. The alarm may be generated by displaying a message or the like on the display unit 106a, or by generating a sound. Further, regarding the determination of whether or not the electronic money medium 2 is placed on the placement unit 114, it may be determined whether or not the electronic money medium 2 can be accessed via the reader / writer unit 112. A determination may be made based on an output signal of the contact sensor by providing a contact sensor on the mounting portion 114.

  Since it is sufficient to access the electronic money medium 2 when the balance data is read from the electronic money medium 2 at the beginning of product registration and when the balance data of the electronic money medium 2 is rewritten to the updated balance data at the end of settlement, Other than these timings, even if the electronic money medium 2 is removed from the placement unit 114, there is no problem in the settlement. However, if the customer removes the electronic money medium 2 once placed on the placement unit 114 and places the electronic money medium 2 on the placement unit 114 again at the time of settlement, the settlement efficiency deteriorates due to an extra operation. Therefore, the settlement efficiency can be improved by keeping the electronic money medium 2 on the placement unit 114 during product registration.

  In addition, when it is detected that the electronic money medium 2 has not been placed on the placement unit 114 within a predetermined time after the screen shown in FIG. 2 is displayed, the operation method (operation procedure) of the device is notified to the user. For teaching, a plurality of types of images are displayed in order (in chronological order) as shown in FIGS. That is, subsequent to FIGS. 8 (a), (b), (c), (d), the screens of FIGS. 9 (a), (b), (c), (d) are displayed in order, Images are displayed in order.

  FIG. 8A shows an initial screen. FIGS. 8B to 8D and FIGS. 9A to 9B are screens for instructing the user to place the electronic money medium 2 on the placement unit 114. FIGS. 9C to 9D are screens for instructing the user to press the shopping start button 800 after placing the electronic money medium 2 on the placement unit 114. These images are displayed repeatedly in order. When the electronic money medium 2 is placed on the placement unit 114 while these images are displayed and the shopping start button 800 is pressed, the image shown in FIG. 3 is displayed, and the product registration is performed as described above. Can be done.

  An image showing the operation method as described above is displayed as follows. The hard disk unit 102 stores a plurality of image data corresponding to each image necessary for display. When displaying an image, these image data are read from the hard disk unit 102 and stored in the RAM 104. The CPU 100 reads out the image data corresponding to the image to be displayed from the RAM 104 in accordance with the display timing of the image, performs processing, and outputs it as display data to the display unit 106a. The CPU 100 repeats the above processing while changing the image data to be processed. Thereby, each image is displayed in order.

  In FIGS. 8 and 9, repeated display is performed with 8 screen images as one unit, but the number of screens included in one unit of repeated display is not limited to eight. For example, the number of screens included in one unit of repeated display may be increased to display a moving image.

  Further, a plurality of images indicating the operation method may be displayed at the same time. In this case, for example, as shown in FIG. 10, images 1000, 1010, 1020, and 1030 indicating the operation method are simultaneously displayed on one screen. When displaying this screen, the CPU 100 reads a plurality of image data from the RAM 104, performs a process of combining the plurality of image data in order to display a plurality of images in one screen, and outputs the display data to the display unit 106a. To do. Alternatively, composite image data obtained by combining a plurality of image data may be stored in the hard disk unit 102 in advance, and screen display may be performed based on the composite image data when the image is displayed.

  In the above description, the user places the electronic money medium 2 on the placement unit 114 and then presses the shopping start button. However, the user presses the shopping start button and then places the shopping start button. The electronic money medium 2 may be placed on the placement unit 114. The operation in this case will be described below.

  In the initial state, the display unit 106a displays the screen shown in FIG. When the shopping start button 1100 is pressed while this screen is displayed, the screen shown in FIG. 12 is displayed. In the screen shown in FIG. 12, a message 1200 that prompts to place the electronic money medium 2 on the placement unit 114 is further displayed. When it is detected that the electronic money medium 2 is placed on the placement unit 114 within a predetermined time after the screen shown in FIG. 12 is displayed, the CPU 100 displays the screen shown in FIG. 106a is controlled. The subsequent operation is as described above.

  Further, when it is detected that the electronic money medium 2 is not placed on the placement unit 114 within a predetermined time after the screen shown in FIG. 12 is displayed (in other words, after the screen shown in FIG. 12 is displayed). When it is detected that a predetermined time has passed before the electronic money medium 2 is placed on the placement unit 114), the CPU 100 controls the display unit 106a to display the screen shown in FIG. 11 again. To do. As a result, even if the customer stops the operation of the apparatus halfway and leaves the place, the screen can be automatically returned to the initial state.

  As described above, according to the present embodiment, the balance is displayed on the display unit 106a when the electronic money medium 2 is placed on the placement unit 114 and a product registration start instruction is input to the input unit 106b. By doing so, the balance display unintended by the customer can be prevented. In the present embodiment, the shopping start button 200 for the customer himself / herself to input a product registration start instruction is displayed on the display unit 106a of the touch panel 106, but an input unit such as a button, a key, or a switch is provided separately. The product registration start instruction may be input from the input unit.

  In addition, as described above, the display unit 106a is controlled to display information (such as the message 300 in FIG. 3) that prompts an operation for reading the data of the product with the barcode attached thereto, and the barcode attached. By controlling the display unit 106a to display a registration key (newspaper button 310 in FIG. 3) for registering a product that has not been printed (newspaper in the present embodiment), only the product without a barcode is displayed. Even when purchasing, the customer can register the product.

  Further, by displaying a plurality of images (FIGS. 8 and 9) showing the operation method taught to the user in order or simultaneously on the display unit 106a, the operation method of the apparatus can be more easily communicated to the user. Can do. Note that the operation method of the apparatus may be transmitted by voice.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the above-described embodiments, and includes design changes and the like without departing from the gist of the present invention. . For example, the following may be used. When it is determined that the electronic money medium 2 is placed on the placement unit 114 and it is determined that the shopping start button 200 is pressed, the screen shown in FIG. 3 is displayed. The CPU 100 determines whether or not the product registration (reading of the product code) has been performed within a predetermined time after the display of this screen, and the CPU 100 determines that the product code has not been read within the predetermined time. In this case, the screen may return to the screen on which the shopping start button 200 shown in FIG. 2 is displayed. As a result, even if the customer notices that he / she has forgotten to purchase after declaring the start of product registration and goes to the store to search for the product, the balance is not displayed after a certain period of time.

It is a block diagram which shows the structure of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention. It is a figure which shows the display screen of the merchandise sales data processing apparatus by one Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Merchandise sales data processing apparatus, 2 ... Electronic money medium, 100 ... CPU, 102 ... Hard disk part, 104 ... RAM, 106 ... Touch panel, 106a ... Display part, 106b ... input unit, 108 ... receipt printing unit, 110 ... scanner unit, 112 ... reader / writer unit, 114 ... mounting unit, 120 ... bus line

Claims (9)

In the merchandise sales data processing apparatus that the customer himself performs an operation for reading the data attached to the merchandise, and performs settlement with the electronic money stored in the non-contact IC chip based on the read data,
A placement unit for placing an electronic money medium including the contactless IC chip for storing balance data;
A reader / writer unit that reads the balance data from the non-contact IC chip when the electronic money medium is placed on the placement unit, and rewrites the balance data at the time of settlement;
A start button for the customer to input a product registration start instruction;
A display unit for displaying various information;
The balance based on the balance data read by the reader / writer unit when the electronic money medium is placed on the placement unit and the start instruction of the product registration is input by the start button. A first control unit that controls to display on the display unit;
When it is detected that the electronic money medium has been placed on the placement section within a predetermined time after the start button is operated, the balance is displayed and a product code can be read. A control unit;
A product sales data processing apparatus characterized by comprising: The display unit is configured to be able to display a key that can be operated by the customer himself,
When the electronic money medium is placed on the placement section and the start instruction for product registration is input by the start button, the control unit further performs an operation for reading data attached to the product The display unit is controlled to display information for prompting the display and a registration key for registering a product to which no data is attached is controlled to be displayed on the display unit. The product sales data processing apparatus described.   The merchandise sales data processing apparatus according to claim 2, wherein the registration key is a key for registering a newspaper.   When an operation for reading data attached to a product is performed, when the total price of the product exceeds a balance based on the balance data, the control unit invalidates the last read data. The merchandise sales data processing apparatus according to any one of claims 1 to 3, wherein:   When the operation for reading the data attached to the product is performed, when the total amount of the product exceeds the balance based on the balance data, the control unit invalidates all the read data. The merchandise sales data processing apparatus according to any one of claims 1 to 3, wherein: When the electronic money medium is placed on the placement section, and the electronic money medium is removed from the placement section before the completion of payment after the start instruction for the product registration is input by the start button. The merchandise sales data processing apparatus according to claim 1, wherein the control unit executes a process for issuing an alarm. The control unit includes a plurality of operation methods for teaching a user before the electronic money medium is placed on the placement unit or before the start instruction for registering the product is input by the start button. The product sales data processing device according to any one of claims 1 to 6, wherein the image is controlled to be displayed on the display unit in order. The control unit includes a plurality of operation methods for teaching a user before the electronic money medium is placed on the placement unit or before the start instruction for registering the product is input by the start button. The merchandise sales data processing apparatus according to claim 1, wherein the image is controlled to be simultaneously displayed on the display unit. The controller is
Control to display the first image on the display unit before the electronic money medium is placed on the placement unit and before the start instruction of the product registration is input with the start button ,
Controlling the display unit to display a second image before the electronic money medium is placed on the placement unit and after the start instruction of the product registration is input with the start button ,
After the second image is displayed on the display unit, the first image is displayed again on the display unit when a predetermined time elapses before the electronic money medium is placed on the placement unit. The merchandise sales data processing apparatus according to claim 1, wherein the merchandise sales data processing apparatus is controlled as follows.

Images