JP2020009499A - Commodity sales data processing device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a clerk to grasp the situation of a customer who makes a payment in a product sales data processing device in which a clerk registers a product and the customer makes a payment for the registered product. SOLUTION: As a product sales data processing device in which a clerk registers a product and a customer pays for the registered product, a first screen related to product registration and a first screen corresponding to the payment status. It is configured to include a display means for displaying the two screens on the same display unit. [Selection diagram] FIG. 10

Description

  The present invention relates to a merchandise sales data processing device and a program.

  The following configuration is known as a self-checkout device that registers a product by a shopper's operation and executes payment of the registered product. That is, the presence / absence of change remaining in the change outlet is detected, and when it is detected that there is no change, the state of locking and supporting the storage bag storing the product is released (for example, see Patent Reference 1). Such a configuration prevents a customer from forgetting to change in a self-check environment.

JP 2013-12002 A

  There is also known a merchandise sales data processing device (POS register) in which a clerk registers a merchandise and a customer pays for the registered merchandise. In such a merchandise sales data processing device, it is necessary for the store clerk to be able to grasp the situation regarding the customer's settlement such as forgetting to change, for example, in order to smoothly proceed from product registration to settlement. preferable. However, since the patent document 1 is based on the premise that the self-checkout device is used, the support state of the product storage bag is locked until the change is taken out, so that the clerk grasps the status of the settlement. It is difficult.

  The present invention has been made in view of such circumstances, and in a merchandise sales data processing apparatus in which a clerk registers a product and a customer performs the payment of the registered product, the clerk performs the payment. The purpose is to be able to grasp the situation of customers.

  In order to solve the above-described problem, one embodiment of the present invention is a merchandise sales data processing device in which a clerk registers a product and a customer performs a settlement operation on the registered product. The merchandise sales data processing apparatus includes a display unit that displays a first screen related to registration and a second screen corresponding to a status of the settlement operation on a display unit for a clerk.

  As described above, according to the present invention, it is a merchandise sales data processing device in which a clerk registers a product and a customer performs payment of the registered product, and the clerk has a customer who performs the payment. The effect that the situation can be grasped can be obtained.

  One embodiment of the present invention provides a computer as a merchandise sales data processing device in which merchandise is registered by a store clerk, and a checkout operation for the registered merchandise is performed by a customer. And a second screen corresponding to the status of the settlement operation on the clerk-side display unit as a display means.

It is a perspective view showing the example of appearance of the goods sales data processor in this embodiment. It is a perspective view showing the example of appearance of the goods sales data processor in this embodiment. It is a front view of the goods sales data processing device in this embodiment. It is a figure showing the example of composition of the goods sales data processor in this embodiment. It is a figure showing an example of a mode of a display in a display section for salesclerks. It is a figure showing an example of a mode of a display in a display section for salesclerks. It is a figure showing an example of a mode of a display in a display section for salesclerks. It is a figure showing an example of a mode of a display in a display section for salesclerks. It is a figure showing an example of a mode of a display in a display section for salesclerks. It is a figure showing an example of a mode of a display in a display section for salesclerks. It is a figure showing an example of a mode of a display in a customer display part. It is a figure showing an example of a mode of a display in a customer display part. It is a figure showing an example of a mode of a display in a customer display part. It is a flowchart which shows the example of a processing procedure which the goods sales data processing apparatus in this embodiment performs.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the appearance of a product sales data processing device 1 according to an embodiment of the present invention. Specifically, FIG. 1 is a perspective view when viewed from obliquely above the customer side. FIG. 1 shows the coordinate axes of the orthogonal coordinate system XYZ. The X axis is a horizontal axis of the product sales data processing device 1 that is horizontal to a horizontal plane. The Y axis is an axis in a depth direction of the product sales data processing device 1 that is horizontal to a horizontal plane, in other words, a direction toward the customer side. The Z axis is an axis in the height direction of the product sales data processing device 1 that is orthogonal to the horizontal plane.

  FIG. 2 is a perspective view of the appearance of the product sales data processing device 1 from another viewpoint. Specifically, FIG. 2 is a perspective view when viewed from an obliquely front upper side on the clerk side. FIG. 2 shows a clerk S (product registrant) and a customer C who face each other across the counter table 80. Hereinafter, the configuration of the merchandise sales data processing apparatus 1 will be described with reference to FIGS.

  1 and 2, the same components are denoted by the same reference numerals. As shown in FIGS. 1 and 2, the merchandise sales data processing apparatus 1 includes a display unit 10 for a clerk, an operation reception unit 20, a scanner unit 30, a housing 40, a support unit 41, and a display unit for a customer. 50, a change machine 60, and a receipt issuing unit 70. Further, the product sales data processing device 1 includes a control unit (an example of a control unit) not shown. The control unit executes a merchandise registration process for registering the purchase of the merchandise and a settlement process (payment process) after depositing the change into the change machine 60.

  The clerk display unit 10 is a display device that displays merchandise registration display information associated with the merchandise registration process and displays accounting display information associated with the checkout process. For example, the product registration display information includes information such as the product name, unit price, discount amount, and quantity of the purchased product. For example, the accounting display information includes information such as a total amount, a deposit amount, a difference (change amount), and a purchased quantity. The clerk display unit 10 presents the display information to the clerk S.

  For example, the display unit 10 for a clerk is realized by a liquid crystal display device with a touch panel having an operation receiving function. In this case, the control unit displays a GUI (Graphical User Interface) button such as a preset button on the display unit 10 for the clerk. Then, the touch panel receives an operation input of the GUI button and supplies operation information corresponding to the operation to the control unit. In addition, on the display unit 10 for the clerk, product registration display information associated with the product registration process in the transaction-related process, information associated with the settlement process, and the like are displayed.

  The operation receiving unit 20 includes an input unit such as a key. For example, the input unit includes a numeric key for inputting a selling price and a quantity, a preset key associated with a predetermined process, a subtotal key (product registration completion key) for terminating the product registration process to the control unit, and the like.

  The scanner unit 30 is an optical reader that reads a barcode-like product code associated with a product while the product registration process is being performed by the control unit, and supplies information on the product code to the control unit. For example, the scanner unit 30 is realized by a handy scanner. The scanner unit 30 is hung on a pedestal provided on a side surface of the housing 40. Note that the scanner unit 30 may be realized by a fixed scanner installed on the counter 80 on the clerk S side.

  The customer display unit 50 is realized, for example, by a liquid crystal display device with a touch panel having an operation receiving function. In this case, the control unit causes the customer display unit 50 to display a GUI button such as a preset button. Then, the touch panel receives an operation input of the GUI button and supplies operation information corresponding to the operation to the control unit. The customer display unit 50 displays product registration display information associated with the product registration process, information associated with the settlement process, and the like. Note that the transaction key operated by the customer C may be realized by a hardware key instead of the GUI button. In this case, the keyboard having the checkout key is provided near the customer display unit 50 (for example, right next to or immediately before the customer display unit 50). On the customer display unit 50, a GUI button as an accounting key (accounting button) is displayed on the customer display unit 50.

  The housing 40 is installed on the counter base 80. However, a mounting surface 81 on which the purchased product is placed is secured on the counter base 80 in front of the clerk S from the housing 40. In addition, on the counter base 80, the customer display unit 50 is disposed in front of the customer C from the housing 40 with the display surface facing the customer C side. The customer display unit 50 may be provided such that the angle between the display surface and the installation surface of the customer display unit 50 can be changed. The installation surface of the customer display unit 50 and the placement surface 81 may be in the same plane or may be different. For example, the customer display unit 50 is provided at a position above the mounting surface 81 and near the change machine 60.

  The display unit 10 for the clerk is attached to the end (upper end) opposite to the installation surface side of the housing 40 installed on the counter base 80 via the support unit 41. That is, the clerk display unit 10 is supported at a position above the placement surface 81 by the support unit 41 fixed to the placement surface 81. The clerk display unit 10 is provided with the display surface facing the clerk S side. The operation reception unit 20 is attached to the support unit 41 or the display unit 10 for the clerk, and is provided with the input unit facing the clerk S.

  The clerk display unit 10 is rotatable with respect to a vertical center axis (an axis parallel to the Z axis) of the support unit 41. For example, according to FIG. 1, the clerk display unit 10 can swing within a range that does not hit the housing 40. Note that, for example, the clerk display unit 10 may be provided so as to be able to rotate approximately 180 degrees (including 180 degrees) from the front direction with respect to the clerk S.

  In addition, the display unit 10 for the clerk is, for example, in a range from 0 degrees to about 120 degrees (including 120 degrees) with respect to an axis perpendicular to the center axis in the vertical direction of the support unit 41 and parallel to the display surface. It may be rotatable within. However, the axis parallel to the display surface here is, for example, an axis parallel to the display surface at a position where the display surface includes the vertical axis. In addition, for example, when the display unit 10 for the clerk is rotated 120 degrees with respect to an axis perpendicular to the center axis of the support unit 41 in the vertical direction and parallel to the display surface, the display unit 10 for the clerk Will be installed in reverse. Therefore, in this case, the control unit controls the display unit 10 for the clerk so that the scanning of the display screen is reversed, so that the display is not reversed.

  An advertisement 42 is provided on the surface of the housing 40 on the customer C side. The advertisement 42 may be a paper medium or a resin medium, or may be a display device that displays a video or a still image.

  The change machine 60 is an automatic change machine that receives a bill and coins input by a customer C, performs a deposit process, and discharges bills and coins when change, refund, or rejection is made. The change machine 60 includes a bill management unit 61, a coin slot 64, a coin outlet 65, and a reject port 66. The bill management unit 61 has a bill input port 62 and a bill discharge port 63. The bill insertion slot 62 is a slot for taking in a bill inserted by the customer C. The bill outlet 63 is a port for discharging bills and reject bills. The bill inlet 62 and the bill outlet 63 are configured in two stages. For example, in the bill management unit 61, the upper part is the bill input port 62, and the lower part is the bill discharge port 63.

  The coin slot 64 is a slot for taking in coins inserted by the customer C. The coin discharge port 65 is a port for discharging a coin as a change, a coin when the currency identification unit of the change machine 60 fails to identify the coin, and a coin when the currency identification unit identifies the coin as a counterfeit coin. The reject port 66 is a port for discharging coins when a cancel operation is performed after payment. The coin slot 64, the coin outlet 65, and the reject port 66 are also collectively referred to as a coin management unit. The change machine 60 may include only a coin management unit.

  The receipt issuing unit 70 prints information obtained by executing the transaction-related processing by the control unit on a receipt paper that is a paper medium, and outputs the printed receipt (account receipt) from the receipt outlet.

Here, the coin outlet 65, the reject port 66, the bill outlet 63, the receipt issuing unit 70, and the like are examples of a settlement operation unit in which an operation related to settlement is performed under a customer's settlement operation.
In the case of the coin outlet 65, an operation of taking out a coin as change from the coin outlet 65 is an operation related to settlement.
In the case of the reject port 66, the operation of taking out the coin ejected from the reject port 66 is an operation relating to settlement.
In the case of the bill outlet 63, the operation of taking out the bill discharged from the bill outlet 63 is an operation related to settlement.
In the case of the receipt issuing unit 70, an operation relating to settlement is an operation for taking out a slip or the like discharged (issued) from the receipt issuing unit 70, including a receipt.

  The change machine 60 and the receipt issuing unit 70 point the bill input port 62, the bill output port 63, the coin input port 64, the coin discharge port 65, the reject port 66, and the receipt discharge port toward the customer C. Therefore, it is protruded from the side surface (the surface parallel to the XZ plane) of the counter table 80 on the customer C side. With this arrangement, when the customer C stands close to the change machine 60, the possibility that the toe of the customer C hits the counter table 80 is reduced. For example, the change machine 60 and the receipt issuing unit 70 are housed in a unitary housing, and this housing protrudes from the side surface of the counter table 80 on the customer C side.

  FIG. 3 is a front view of the merchandise sales data processing apparatus 1 as seen from the customer side. 3, the same components as those in FIG. 1 are denoted by the same reference numerals. FIG. 3 shows the coordinate axes of the orthogonal coordinate system XZ. The X axis is a horizontal axis of the product sales data processing device 1 that is horizontal to a horizontal plane. The width (width) of the product sales data processing device 1 is the size in the X-axis direction. The Z axis is an axis in the height direction of the product sales data processing device 1 that is orthogonal to the horizontal plane.

  The change machine 60 is disposed below the position where the customer display unit 50 is provided and at a position near the customer display unit 50. As shown in FIGS. 1 and 3, when the surface on which the customer display unit 50 is installed and the placing surface 81 are in the same plane, the change machine 60 is located below the placing surface 81 and on the customer display. It is arranged at a position near the part 50.

  In the change machine 60, the coin insertion slot 64 is disposed at a position beside the bill management unit 61 and below the bill management unit 61. Specifically, as shown in FIG. 3, a banknote management unit 61 is provided on the left side and a coin slot 64 is provided on the lower right side with respect to a plane including a line A orthogonal to the XZ plane and parallel to the Z axis. Is done. A coin outlet 65 is provided below the banknote management unit 61. With this arrangement, when the merchandise sales data processing apparatus 1 is viewed from the top side, that is, in the field of view of the customer C, the bill inserted into the bill insertion slot 62 and the bill discharged from the bill discharge slot 63 cause the coin insertion slot. 64 is not blocked. Therefore, it is easy to insert bills and coins.

  A reject port 66 is provided below the coin slot 64. A coin outlet 65 is provided below the banknote management unit 61. For example, the coin discharge port 65 and the reject port 66 are arranged adjacently in the horizontal direction (X-axis direction).

  The receipt issuing unit 70 is provided near the customer display unit 50 and the change machine 60. Specifically, as shown in FIG. 3, the receipt issuing unit 70 is located on the right side of a plane including a line A orthogonal to the XZ plane and parallel to the Z axis, and at a position above the coin slot 64. Will be arranged.

  As is clear from FIGS. 1 to 3, the operation reception unit 20, the clerk display unit 10, and the customer display unit 50 on the side facing the customer C are arranged so as to fit within substantially the width of the change machine 60. Has been established. By arranging the banknote management unit 61 and the coin outlet 65 in two vertical stages, the width of the change machine 60 can be drastically narrowed, and therefore, the product sales data processing device 1 has an exceptionally compact size. Can be realized.

  FIG. 4 is a diagram illustrating a configuration example of the product sales data processing device 1. 4, the same components as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 4, the merchandise sales data processing apparatus 1 includes a CPU (Central Processing Unit) 100, a ROM (Read Only Memory) 110, a RAM (Random Access Memory) 120, a communication unit 130, and a display for a clerk. It includes a unit 10, an operation receiving unit 20, a scanner unit 30, a customer display unit 50, a change machine 60, and a receipt issuing unit 70. A CPU 100, a ROM 110, a RAM 120, a communication unit 130, a clerk display unit 10, an operation reception unit 20, a scanner unit 30, a customer display unit 50, a change machine 60, a receipt issuing unit 70, The notification unit 140 is connected via a signal line and a bus.

The CPU 100 reads and executes a program stored in the ROM 110 to implement transaction-related processes such as a product registration process and a settlement process. The RAM 120 stores, for example, merchandise information (information such as a merchandise code, a merchandise name, a unit price, and a discount amount) read from a store computer installed in a store. Further, the RAM 120 stores product registration display information and transaction display information.
The communication unit 130 is an interface for communicating with a store computer or another product sales data processing device.
The notification unit 140 (an example of a customer output unit) performs a predetermined notification using, for example, sound (electronic sound, voice), light, or the like.

Next, with reference to FIGS. 5 to 13, regarding the operation of the merchandise sales data processing device 1 according to the registration of merchandise by the clerk and the settlement by the customer, the display on the display unit 10 for the clerk and the display unit 50 for the customer This will be described with reference to an example.
5 to 10 are diagrams illustrating display examples displayed on the display unit 10 for the clerk. 11 to 13 are diagrams showing display examples displayed on the customer display unit 50. FIG.

  FIG. 5 shows an example of a product registration screen displayed on the salesclerk display unit 10 during the product registration process. The merchandise registration screen shown in the figure is an initial screen in which no merchandise is registered in the merchandise sales data processing apparatus 1 and the merchandise registration data is on standby for merchandise registration.

At the top of the figure, a selection area (for example, a first customer selection area 300 in FIG. 5) is provided for each customer (for each transaction). The selection area 300 is also called, for example, a tab.
In the selection area 300 for the first customer, information 304-1 (value “1”) indicating that the first customer is displayed and the deposit amount up to the present (an example of the input amount: the present customer , A fishing machine deposit amount (paid-in amount) 301-1 (a cat in FIG. 5) for identifying the customer from other customers.

A subtotal key 311, a next customer registration key 312, and a fishing machine status key 313 are provided at the lower part of the product registration screen in FIG. 5.
The fishing machine state key 313 is a key related to the state of the change machine 60 (status). For example, as the state of the change machine 60, "near end", "paying", "paying", and the like are displayed. In the example of FIG. 5, a display such as a badge (or a label or a tag) stating “insufficient fishing” is given to the fishing machine status key 313 to indicate that the change machine 60 is short of change (near end). are doing. For example, by operating the fishing machine state key 313 key, detailed information on the state of the change machine (for example, the details about the near end, the denomination of the near end, the remaining number, and the like) are displayed.

The customer registration key 312 is operated by the clerk before starting the transaction for the second customer (second customer) before the processing related to the transaction of the first customer is completed (that is, before the settlement processing is completed). Is the key.
By operating the customer registration key 312, the product sales data processing device 1 displays a product registration screen corresponding to the customer on the top surface, and is ready to accept operations of the clerk related to the transaction of the customer.

  The subtotal key 311 is a key operated by a clerk to obtain a subtotal in response to completion of registration of a product according to one customer.

  When the product registration screen displayed on the clerk display unit 10 is in the initial state as shown in FIG. 5, the customer display unit 50 displays the product sales data for product registration as shown in FIG. A guidance screen is displayed to guide a customer who stands in front of the processing device 1 to be able to make a payment from a state during product registration.

  Then, it is assumed that, for example, a customer serving as a first customer has come to the product sales data processing apparatus 1 to purchase one “product 1” from the initial state of FIG. In this case, the clerk performs an operation of registering one “product 1” on the product sales data processing device 1. The merchandise sales data processing apparatus 1 performs merchandise registration processing for registering one “merchandise 1” in response to this operation.

  When one “product 1” is registered in this way, the product registration screen on the display unit 10 for the clerk transits to the state of FIG. The merchandise registration screen shown in FIG. 7 indicates that one “merchandise 1” of one yen has been registered. In addition, in accordance with the registration of the product, in selection area 300, the total amount up to now (total amount corresponding to the product registered as a purchased product of the customer so far) 302-1 is displayed. Become like

Further, when one “product 1” is registered as described above and the product registration screen on the display unit 10 for the clerk transitions to the state of FIG. 6, the guidance of FIG. The display changes from the state to the state of the accounting screen in FIG. In the checkout screen of FIG. 11B, a registered product area 401, a total area 402, and a deposit amount area 403 are arranged.
In the registered product area 401, information on the last registered product type is displayed. Specifically, the registered product area 401 in FIG. 4 shows that one product with a product name of “product 1” is registered as the product type, and that the price is one yen.
In the total area 402, the total number and the total price corresponding to the products registered so far are displayed.
In the deposit amount area 403, the deposit amount (deposit) deposited by the first customer for payment from the start of the product registration to the present is displayed. The figure shows that the deposit amount is 0 yen because the deposit has not been made yet.
Also, in the deposit amount area 403 in the same drawing, a display for prompting the customer to deposit, such as "Please insert money anytime," is also displayed.

Here, since there is only one product “product 1” purchased by the first customer, the registration of the product corresponding to the first customer is completed by the registration of “product 1”. Then, the clerk performs an operation (subtotal operation) on the subtotal key 311 to perform subtotal for the products registered so far.
In response to the subtotal operation being performed, the clerk display unit 10 transitions from the state of FIG. 6 to the state of FIG. That is, the small planning surface 500 is displayed in a window format so as to be superimposed on the product registration screen of the display unit 10 for the clerk.

  On the small plan plane 500, a total area 501 and a deposit area 502 are arranged. In the total area 501, the total price based on the prices of the commodities registered so far is shown as a subtotal result.

The deposit amount area 502 shows the amount of money that has been received by the first customer so far into the merchandise sales data processing apparatus 1.
The first customer inserts money (banknote or coin) for deposit using the bill insertion slot 62 or the coin insertion slot 64 after the merchandise registration of the first product (“commodity 1”) is performed. . In this case, the first customer deposited a 1-yen coin to pay 1 yen, which is the price of one “goods 1”. In response to this, the deposit amount area 502 in the figure shows that 1 yen has been deposited.
Further, on the small planning plane 500, a next customer registration key 503 is arranged.

In addition, in the customer display unit 50, the first customer makes a deposit from the state shown in FIG. 11B and completes the deposit of the total amount or more, as shown in FIG. 12A. The confirmation screen for confirming payment is displayed. In the settlement completion confirmation screen of FIG. 11, a total area 411, a deposit amount area 412, a change area 413, and a settlement completion key 414 are arranged.
In the total area 411, the total number and the total price of commodities registered in the subtotal stage are displayed. In this case, one "commodity 1" of 1 yen is registered. In response to this, the total area 411 in the figure shows that the total number is one and the total amount is one yen.
In the deposit amount area 412, the deposit amount up to the present is displayed. The payment completion confirmation screen is displayed in response to the completion of the payment of the total amount or more as described above. Therefore, in the deposit amount area 412, an amount equal to or greater than the total amount is displayed as the deposit amount up to the present. The deposit amount area 412 in the same drawing shows that the deposit of one yen, which is the same as the total amount of one yen, has been completed.
In the change area 413, the change amount obtained according to the difference between the total amount and the deposit amount is displayed. In the case of the figure, since the same 1-yen deposit is made for the 1-yen total amount, the change obtained by subtracting the total amount from the deposited amount is 0 yen. Accordingly, an example is shown in which the change area 413 in FIG.
The settlement completion key 414 is a key for the customer to perform an operation (closing operation) for completing the settlement. Also, at the bottom of the checkout completion confirmation screen, a message, such as "Please press the end if you like," is displayed to guide the customer to confirm the checkout details and to operate the checkout completion key 414. . The customer operates the settlement complete key 414 after confirming whether the contents displayed in the total area 411, the deposit amount area 412, and the change area 413 are correct.

  When the settlement completion key 414 is operated from the state of FIG. 12A, the customer display unit 50 transits to the display of the settlement end screen of FIG. 12B. By displaying the payment end screen, the customer can confirm that his / her payment has ended. When the settlement completion screen is displayed for a certain period of time, the screen is switched to, for example, a guidance screen shown in FIG.

Here, the merchandise sales data processing apparatus 1 in the present embodiment can register the merchandise corresponding to the next second customer while the settlement process corresponding to the first customer is being executed. As described above, the settlement process corresponding to the first customer and the product registration process corresponding to the second customer can be performed in parallel, so that the first customer can be processed without waiting for the completion of the settlement process. Since the product registration of two customers can be started, so-called customer handling can be made more efficient.
When starting the merchandise registration of the second customer during execution of the checkout process corresponding to the first customer, if the small planning surface 500 shown in FIG. The key 503 is operated. In a state in which the operation on the product registration screen is possible without displaying the small planning surface 500, the clerk operates the next customer registration key 312 on the product registration screen.

Here, the display shown in FIG. 7 is performed, and when the clerk operates the next customer registration key 503 in order to respond to the second customer in a state where the first customer has not yet completed the checkout, the clerk The display on the display unit 10 for example transits to the state of FIG.
The product registration screen shown in the figure corresponds to the second selection area 300-2. The product registration screen corresponding to the selection area 300-2 is a product registration screen corresponding to the second customer. Here, the first selection area 300-1 arranged on the right side of the selection area 300-2 corresponds to a first customer who has not yet completed payment. In this case, the product registration screen corresponding to the first customer is hidden below the product registration screen of the second customer. In the selection area 300-2, a character 303-2 (for example, a cow) for identifying that the customer is different from the first customer is displayed.
In the product registration screen for the second customer shown in FIG. 2, two "products 1" are sequentially registered, indicating that the total number of registered products is two and the total price is two yen. Have been.

  Then, at a certain timing after the display of the merchandise registration screen of the second customer is started as described above, when the first customer who is adjusting the payment has completed payment, the selection area 300 (300-1, 300-2) is displayed. Is displayed, a notification message 320 (an example of a second screen) indicating that the payment of the first customer has been completed is displayed. Note that the area of the notification message 320 in the figure may be, for example, in a semi-transparent state so that the selection area 300 located on the lower side can be seen through.

After the second customer's product registration screen is displayed as shown in the figure and at least one product is registered, for example, the first customer's product registration corresponding to the second customer's registration is prioritized. Even if an operation is performed on the selection area 300-1 corresponding to the customer, the display may not return to the display of the product registration screen of the first customer. When an operation is performed on the selection area 300-1 corresponding to the first customer after the product registration corresponding to the second customer is performed, the store clerk is notified that the operation is invalid, for example, in a window format. Dialog window appears. Prohibition of the transition to the product registration screen for the first customer is continued, for example, until a subtotal operation is performed for the second customer.
On the other hand, if there is a low need to prioritize the product registration corresponding to the second customer, even after the product is registered in the second customer, the first customer can be operated according to the operation on the selection area 300-1. It may be made possible to return to the product registration screen.

  The position where the notification message 320 is displayed on the product registration screen is not limited to the position shown in FIG. For example, the notification message 320 may be displayed in a spare area for selection area 330 which is a spare area for sequentially arranging the selection areas 300. Further, the notification message 320 may be displayed at a position immediately above the selection area 300 corresponding to the same transaction. Further, the notification message 320 may be displayed in a color corresponding to the color of the selection area 300 corresponding to the same transaction.

Here, a case will be described as an example where the second customer purchases and uses three “goods 1”. In this case, the clerk performs an operation (subtotal operation) on the subtotal key 311 after performing an operation of registering another “product 1” from the state of FIG.
In response to the subtotal operation being performed, the display of the clerk display unit 10 transitions from FIG. 8 to FIG.

8, the selection area 300-2 displayed in FIG. 8 is not displayed, and only the selection area 300-1 is displayed. The product registration screen corresponding to the selection area 300-1 displayed in the figure is a product registration screen corresponding to the second customer.
That is, in this case, as shown in FIG. 8, the second "product 1" is registered in correspondence with the second customer, and then the third "product 1" is registered and the subtotal operation is performed. By the time the payment is made, the payment for the first customer has been completed. Upon completion of the settlement of the first customer, the second customer moves up to the first customer. In response to this, the selection area 300-1 corresponding to the first customer and the product registration screen corresponding thereto displayed in FIG. 8 are erased, and are displayed corresponding to the second customer so far. The selection area 300-2 moves up to the selection area 300-1. At this time, the character display is also changed from the cattle character 303-2 to the cat character 303-1. At the same time, a product registration screen corresponding to the selected area 300-1 after the advance is displayed. That is, a product registration screen corresponding to the customer who has been the second customer is displayed. Note that, as described above, the second customer moves up to the first customer in response to the completion of the settlement by the first customer. The customer described as a customer will be described as a second customer hereinafter.

  Then, the registration of the three “products 1” corresponding to the second customer is completed, and the subtotal operation is performed by the clerk, so that the sub-planning plane 500 corresponding to the second customer is displayed as shown in FIG. . In the total area 501 of the figure, it is shown that the total price according to the subtotal result of registering three 1-yen products is 3 yen. Further, in this case, the second customer deposited 11 yen as a deposit for the paid amount of 3 yen. Accordingly, the deposit amount area 502 shows that the deposit amount is 11 yen.

Here, at the stage where the settlement of the first customer has been completed and three “products 1” have been registered by registering the product corresponding to the second customer, the customer display unit 50 shown in FIG. Thus, the display of the checkout screen corresponding to the second customer is performed.
In this case, the last registered “commodity 1” is registered in the registered commodities area 401, and it is indicated that the price is 1 yen.
The total area 402 indicates that the total number of products registered so far is three, and the total price is 3 yen.
Further, 0 yen is displayed in the deposit amount area 403 of FIG. This is a state in which the second customer has not yet made a deposit, that is, the amount of money that the second customer has deposited for payment from the start of registration of the product corresponding to the second customer to the present ( Deposit is 0 yen.

  Then, as described with reference to FIG. 9, the second customer deposits 11 yen, which is a deposit of 3 yen or more, from the above-described state. The display changes from the accounting screen of (A) to the settlement completion confirmation screen of FIG. 13 (B).

In the settlement completion confirmation screen of FIG. 13B, the total area 411 indicates that the total number of commodities registered in the subtotal stage is three, and the total amount is three yen. The deposit amount area 412 indicates that 11 yen has been deposited as a deposit.
The change area 413 indicates that 8 yen, which is obtained by subtracting the total amount of 3 yen from the deposit of 11 yen, is change.

Then, the second customer checks the contents of the total area 411, the deposit amount area 412, and the change area 413, and operates the settlement complete key 414.
In this case, since a change has occurred, cash of 8 yen is discharged from the coin discharge port 65 as change in response to the operation of the settlement completion key 414. Further, in response to the operation of the settlement completion key 414, the display on the customer display unit 50 shifts from the settlement completion confirmation screen of FIG. 13B to the change receiving guide screen of FIG. 13C.
In the change receiving guide screen shown in FIG. 13, the display of the total area 411, the deposit amount area 412, and the change area 413, which are the same as the settlement completion confirmation screen in FIG. 13B, is taken over, and "Please receive change." , A message for guiding the customer to receive the change is displayed.

The change machine 60 determines whether all of the banknotes discharged as change from the banknote discharge port 63 and the coins discharged as change from the coin discharge port 65 have been completely removed (that is, whether the banknotes have been forgotten). No) is provided.
Therefore, the merchandise sales data processing apparatus 1 detects whether or not all the change has been taken out after discharging the change from the change machine 60. Then, when a state in which all the change has been taken out is not detected even after a certain period of time has elapsed after the change is discharged from the change machine 60, the merchandise sales data processing apparatus 1, as shown in FIG. The display unit 10 displays a change-forgotten notification screen 600 (an example of a second screen).

In the figure, a checkout confirmation screen (an example of a first screen) corresponding to the second customer is displayed on the background of the change-forgotten notification screen 600. The settlement confirmation screen in FIG. 13 is a screen displayed in conjunction with the display of the change receiving guide (FIG. 13C) on the customer display unit 50, for example.
If the change confirmation screen is displayed and all the change remains for a certain period of time without being taken out, it is determined that the change has been forgotten. A forgotten notification screen 600 is displayed.
The clerk grasps that the customer who has performed the settlement in the face-to-face situation has missed the change by displaying the forgotten change notification screen 600, and informs the customer to immediately have the customer take out the change. be able to.
In the case of the merchandise sales data processing device 1 of the present embodiment, although the clerk faces the customer, for example, it is difficult to see the hand, and it is possible to accurately grasp the settlement status of the customer just by looking at the customer. Can be difficult. Thus, as in the present embodiment, the change-forgotten notification screen 600 is displayed for the clerk, and as one of the situations of the customer who performs the payment, it is accurately determined whether or not the customer has received the change. You can figure out.

Also, in response to occurrence of a change being forgotten, the notification unit 140 notifies the user of the change being forgotten by sound. The notification unit 140 includes a clerk-responsive sound output unit provided so as to be easy for a clerk to listen to and a customer-responsive sound output unit provided so as to be easy for a customer to hear. The notification by the sound of the notification unit 140 is output by both the clerk-sound output unit and the customer-sound output unit. That is, the notification by the sound of the notification unit 140 is performed for both the clerk and the customer. Further, the notification by sound from the clerk corresponding sound output unit may be based on an electronic sound or may be based on a guidance voice. In this regard, the same applies to the customer response sound output unit.
The notification unit 140 includes, for example, a lighting unit such as an LED (Light Emitted Diode) arranged corresponding to the position of the change machine 60. The notification unit 140, in response to occurrence of a change being forgotten, causes the LED in the lighting unit to emit light in a predetermined color, blinking pattern, or the like, thereby notifying that the change has been forgotten.
As described above, in the merchandise sales data processing apparatus 1 according to the present embodiment, when a change is forgotten, a notification is issued to both the customer and the clerk by a plurality of means. This effectively prevents the customer from leaving the merchandise sales data processing apparatus 1 while forgetting to change.

  Then, for example, when the change is taken out, a commodity registration screen for the next customer is displayed in the initial state instead of the change-forgotten-notification notification screen 600 and the background settlement confirmation screen shown in FIG. In addition, in response to the change being taken out, the sound and light notification so far is stopped, and the display section 10 for the clerk displays the change receiving guide screen of FIG. Transits to the display of the settlement end screen.

  With reference to the flowchart of FIG. 14, an example of a processing procedure executed by the product sales data processing apparatus 1 according to the present embodiment in response to the prevention of forgetting to change will be described. As shown in FIG. 8 and the like, the processing shown in FIG. 8 is performed by the customer in the checkout when a change occurs due to a deposit larger than the total amount of the registered merchandise as a deposit. This is executed in response to the operation of (1) being performed. It should be noted that the processing in FIG. 3 is realized, for example, by the CPU 100 executing a program stored in the ROM 110.

  Step S101: In response to the operation of the settlement completion key 414 being performed, the commodity sales data processing device 1 causes the change machine 60 to discharge change. At this time, the merchandise sales data processing apparatus 1 causes the bill in the change to be discharged from the bill outlet 63 when the change includes a bill, and the coin from the coin outlet 65 when the change includes a coin. Eject coins.

  Step S102: When the change is discharged, the change machine 60 detects the presence or absence of the change discharged from the bill discharge port 63 and the coin discharge port 65 by the sensor. The commodity sales data processing device 1 determines whether or not the discharged change remains without being taken out by the customer based on the detection output of the change machine 60. If money is detected in at least one of the bill outlet 63 and the coin outlet 65 by the sensor of the change machine 60, the commodity sales data processing device 1 leaves the discharged change without being taken out by the customer. Is determined. On the other hand, if no money is detected in either the bill outlet 63 or the coin outlet 65, it is determined that all the discharged change has been taken out.

  Step S103: When it is determined in step S102 that the change remains, the merchandise sales data processing device 1 determines whether the state in which the change remains has passed for a predetermined time or more. When it is determined that the state in which the change remains is shorter than the predetermined time, the process returns to step S102.

Step S104: On the other hand, if it is determined in step S103 that the state in which the change remains has passed for a certain period of time or more, it is treated as that the above-mentioned forgetting to change has occurred. In this case, the merchandise sales data processing device 1 performs control for notifying the user of a change being forgotten.
The control for notifying the user to forget change is displayed on the screen 600 for notifying the user to forget change. In addition, the notification from the notification unit 140 to each of the clerk side and the customer side is made by sound. Further, the notification is performed by lighting (including blinking) of the illumination unit from the notification unit 140.

Hereinafter, modifications of the present embodiment will be described.
In the description so far, the change-forgotten notification screen 600 is displayed when a change-forgotten change has occurred, that is, when all the change has not been taken out even after a certain time has elapsed since the change was discharged. I have to. However, the change-forgotten notification screen 600 may be displayed, for example, at a timing corresponding to the discharge of the change. Similarly, sound other than the change-forgotten notification screen 600, lighting of the illumination unit, and the like performed by the notification unit 140 may be performed at a timing corresponding to the change discharge.

Further, as a screen (payment status screen) corresponding to the customer's payment status, the following screen can be displayed in addition to the change-forgotten notification screen 600.
For example, the customer may forget to operate the payment completion key 414 last while the payment completion confirmation screen shown in FIGS. 12A and 13B is displayed. Therefore, a screen indicating that the operation of the settlement completion key 414 is awaited may be displayed on the display unit 10 for the clerk in a state where the checkout completion confirmation screen is displayed on the display unit 50 for the customer. The merchandise sales data processing apparatus 1 of the present embodiment is provided with a current total key corresponding to the above-mentioned settlement completion key 414 on the side where the clerk operates. The total key is provided as a mechanical key in the operation receiving unit 20, for example. Further, as shown in FIGS. 7 and 9, it may be provided as a current total key 504 or the like arranged on the small planning plane 500. For example, the customer may forget to operate the checkout completion key 414 at the end of checkout. Therefore, by providing the current total key on the side where the clerk operates in the product sales data processing device 1, if the customer forgets to operate the checkout completion key 414, the clerk operates the current total key to settle the payment. Can be performed. As a result, it is possible to proceed with the settlement smoothly.
In addition, as shown in FIG. 8, as a notification message 320, a message notifying that the payment has been completed is displayed. However, a message notifying that the deposit has started may be displayed, for example, in response to the start of the deposit by the customer (the start of the insertion of money into the change machine 60 is detected). . Further, as the notification message 320, a message indicating that payment is waiting may be displayed in a state where payment by the customer has not been started. In addition, as the notification message 320, information indicating that the customer has operated the settlement completion key 414 after payment has been completed or a message indicating that the settlement completion key 414 has been operated is displayed as information on the operation of the customer's settlement completion key 414. May be. In addition, as the notification message 320, when the deposit amount due to deposit is equal to or more than the total amount (payment is completed), for example, when the deposit amount exceeds the total amount, it is not merely that the deposit is completed, but the deposit is not completed. A message indicating that the amount has exceeded the total amount (that is, change has occurred) may be displayed. Further, as a notification message 320, when a credit card, electronic money, or the like is used as a medium related to settlement in an operation related to settlement, the medium used for settlement cannot be handled or the balance is insufficient. In such a case, these facts may be notified.
In addition, the customer may mistakenly think that he has received a deposit equal to or more than the price even though the deposit has been less than the total amount of the subtotal. Therefore, in a state where the deposit amount is smaller than the price, a notification that the deposit amount is insufficient may be made to be displayed on the display unit 10 for the clerk.
Further, depending on the change machine 60, it may take some time to discharge all the change. In such a case, for example, during the operation in which the change machine 60 is discharging change, a notification that the change is being discharged may be made on the display unit 10 for the clerk.

Further, the second screen may be displayed not only as the settlement status screen but also as an error notification screen for notifying that an error has occurred when an error has occurred in the change machine 60.
The error situation in the change machine 60 includes a jam of money, running out of paper for receipt, running out of change, and the like. Further, when an error occurs, the change machine 60 can notify, as its own status, whether the error state is due to a jam in money, out of receipt paper, or out of change.
Therefore, based on the notification of the error from the change machine 60, the merchandise sales data processing apparatus 1 may also notify the error status when displaying the error notification screen. That is, as the error notification screen, it is possible to display a screen indicating, for example, whether the cause is due to jam of money, running out of paper for receipt, or running out of change.
In addition, the change machine 60 can also notify, as a status, whether any of the banknotes is clogged with any of the banknote slot 62, the banknote slot 63, the coin slot 64, and the coin slot 65. . Therefore, when notifying the jam of the money on the error notification screen, the merchandise sales data processing apparatus 1 causes the jam in any of the bill insertion slot 62, the bill ejection slot 63, the coin insertion slot 64, and the coin ejection slot 65. May be shown. Further, when the settlement cancel operation is performed, the coins once deposited are discharged from the reject port 66, and the bills are discharged from the bill discharge port 63, but coins and bills are discharged according to the cancel operation. Whether or not the operation has been performed normally may be notified on the second screen.
If the notification is performed in this manner, the clerk can grasp the location of the error, and thus can quickly and accurately respond to the error.

In addition, the change forgetting notification screen 600 shown in FIG. 10 is displayed in such a manner as to be superimposed as a window on the settlement confirmation screen.
However, the second screen as the various settlement status screens, the error notification screen, and the like described above, including the change forgetting notification screen 600, may be displayed in the selection area spare area 330, for example. Since the screen is not overlapped with the area where the key for the product registration operation is arranged by being displayed in the spare area for selection area 330, the product registration operation can be continued. That is, by displaying the second screen in the spare area 330 for the selected area, the clerk can grasp the settlement status of the customer, the error status of the change machine 60, and the like while performing the product registration operation. Further, the second screen may be displayed at a position other than the selection area spare area 330 and at a position that does not hinder the product registration operation.
Then, whether to display the second screen in a window format or to display the second screen at a position that does not hinder the product registration operation such as the selection area spare area 330 depends on the content to be notified and the information from registration to settlement. It may be set appropriately according to the progress of accounting.
For example, when the second screen is to be displayed until the product registration operation is completed, the second screen is displayed in the spare area for selection area 330, so that the product registration operation is prioritized. On the other hand, when the product registration operation has been completed and the subtotal operation has been performed, it is no longer necessary to perform the product registration operation. By displaying it in a window format, the clerk always notices the notification and the content of the notification Can be accurately grasped.
Further, when an error occurs in the change machine 60, it is not appropriate to operate the product sales data processing apparatus 1 as it is. Therefore, the error notification screen may be displayed in a window format so that the product registration operation cannot be performed.

  Further, in the description so far, the product sales data processing apparatus 1 in which a store clerk registers a product and a customer pays for the product on the opposite side has been described as an example. However, the configuration in the present embodiment is also applicable to a product sales data processing system in which a registration device for registering a product by a clerk and a payment device for performing a payment by a customer are separately provided. Even in such a merchandise sales data processing system, it is difficult for the clerk operating the registration device to grasp the situation of the customer who performs the payment by the payment device, so it is effective to apply the configuration of the present embodiment. It is.

  Further, in the description so far, an example is given in which a forgetting about money as change is reported as a medium relating to settlement. However, as a medium relating to the settlement, a medium that a customer may forget to take may be a credit card, a prepaid card, a point card, or the like, in addition to money. Furthermore, electronic money compatible cards, coupons, receipts, receipts, guarantees, and the like can also be mentioned. Further, for example, a mobile terminal having a credit card function, a prepaid card function, an electronic money compatible card function, and the like can be given. Therefore, in the present embodiment, when these non-monetary media are inserted into the merchandise sales data processing apparatus 1 for settlement, it is possible to prevent forgetting to take out the non-monetary media discharged after the settlement is completed. May be performed.

In addition, the imaging device captures an image of the portion of the change machine 60 where the customer performs the payment operation, and the captured image (for example, a moving image) is displayed on the display unit 205 for the clerk as a second screen corresponding to the status of the payment operation. Is also good. Such a second screen may be displayed as a small screen on the display surface of the display unit 205 for the clerk, for example, so as not to hinder the product registration operation as much as possible.
In addition, an image that can indicate the status of settlement on the customer side can be displayed as the second screen on the display unit 205 for the clerk. As an example, as a second screen that can show the status of the settlement on the customer side, it is displayed on the customer display unit 50 in accordance with the customer's settlement operation as described in FIGS. 11 to 13. A guidance image or the like can be displayed.

In the settlement completion confirmation screens shown in FIGS. 12A and 13B, for example, in addition to the settlement completion key 414, for example, a button for performing an operation for designating the necessity of receipt, a receipt A button or the like for performing an operation for instructing issuance may be arranged.
For example, in the case where a button for instructing the issuance of a receipt is arranged, if an operation for instructing the issuance of a receipt is performed, a display indicating that the receipt has been issued in response to the operation is displayed as a second display. It may be performed by a screen or a notification message 320 or the like.

As described above, the present embodiment is a merchandise sales data processing apparatus 1 in which merchandise is registered by a clerk, and a checkout operation for the registered merchandise is performed by a customer. There is provided a display means for displaying one screen and a second screen corresponding to the status of the settlement operation on the display unit for the clerk.
According to the above configuration, in addition to the first screen related to the registration of the product, the second screen corresponding to the customer's checkout status is also displayed on the same display unit. Thereby, the clerk who sees the first screen related to the registration of the product can also see the second screen corresponding to the customer's checkout status, and the clerk can grasp the customer's status of the checkout.

In the merchandise sales data processing apparatus 1 according to the present embodiment, the display unit displays a second screen for notifying that the user has forgotten to take the medium related to the settlement.
According to the above configuration, the clerk can understand that the customer who performs the payment is in a state in which the medium related to the payment is forgotten to be removed from the product sales data processing device 1.

Further, in the commodity sales data processing device 1 according to the present embodiment, the display means displays a second screen for notifying an error that has occurred with respect to the settlement.
According to the above configuration, the clerk can grasp that an error has occurred in the settlement.

In the merchandise sales data processing device 1 according to the present embodiment, the display means displays the second information when the amount of money inserted under the checkout operation by the customer is equal to or more than the total amount corresponding to the registered merchandise. Display the screen.
According to the configuration, the clerk can grasp that the payment has been completed as the progress of the customer's settlement.

Further, in the merchandise sales data processing apparatus 1 of the present embodiment, when the settlement corresponding to one customer is performed, it is possible to register the merchandise corresponding to the next customer of one customer, and the display means includes: A first screen related to registration of a product corresponding to a second customer and a second screen corresponding to a checkout situation corresponding to one customer may be displayed.
According to the above configuration, when the clerk is registering a product corresponding to the second customer, it is possible to grasp the status of settlement of the first customer.

Further, in the merchandise sales data processing apparatus 1 of the present embodiment, the system further includes customer notification means for performing notification for the customer, and the display means displays the second screen together with the notification by the customer notification means. You may.
According to the above configuration, the status of the settlement is grasped by the clerk by displaying the second screen, and the customer is notified by the output from the customer output means, thereby preventing the customer from making mistakes in the settlement. Becomes possible.

In the merchandise sales data processing apparatus 1 according to the present embodiment, the settlement operation unit in which an operation related to settlement is performed under the settlement operation by the customer is opposite to the direction in which the display surface of the display unit for the clerk is turned. It is provided so as to face in the direction.
According to the above configuration, the display of the second screen allows the clerk to grasp the status of the settlement that is not visible to the clerk.

  Further, in the present embodiment, a computer as a merchandise sales data processing device in which merchandise is registered by a store clerk and a checkout operation on the registered merchandise is performed by a customer, a first screen related to merchandise registration, This is a program for functioning as a display means for displaying a second screen corresponding to the status of the checkout operation on the clerk side display unit.

  In addition, a program for realizing the function as the product sales data processing apparatus 1 described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read and executed by a computer system. The above-described processing as the product sales data processing device 1 may be performed. Here, "to make the computer system read and execute the program recorded on the recording medium" includes installing the program in the computer system. Here, the “computer system” includes an OS and hardware such as peripheral devices. Further, the “computer system” may include a plurality of computer devices connected via a network including a communication line such as the Internet, a WAN, a LAN, and a dedicated line. The “computer-readable recording medium” refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, and a CD-ROM, and a storage device such as a hard disk built in a computer system. As described above, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM. The recording medium also includes an internal or external recording medium accessible from the distribution server for distributing the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program in a format executable by the terminal device. That is, any format can be stored in the distribution server as long as it can be downloaded from the distribution server and installed in a form executable by the terminal device. The program may be divided into a plurality of programs, downloaded at different timings, and then combined by the terminal device, or the distribution server that distributes each of the divided programs may be different. Further, the “computer-readable recording medium” holds a program for a certain period of time, such as a volatile memory (RAM) in a computer system serving as a server or a client when the program is transmitted via a network. Shall be included. Further, the program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

1 merchandise sales data processing device, 10 salesclerk display unit, 20 operation reception unit, 30 scanner unit, 40 housing, 41 support unit, 42 advertisement, 50 customer display unit, 60 change machine, 61 banknote management unit, 62 banknote Slot, 63 bill outlet, 64 coin slot, 65 coin outlet, 66 reject slot, 70 receipt issuing unit, 80 counter stand, 81 mounting surface, 100 CPU, 110 ROM, 120 RAM, 130 communication unit, 140 Information department

Claims (8)

A product sales data processing device in which a store clerk registers a product, and a customer performs an adjustment operation on the registered product,
A merchandise sales data processing device comprising display means for displaying a first screen associated with registration of the merchandise and a second screen corresponding to a status of the settlement operation on a display unit for a clerk. The merchandise sales data processing device according to claim 1, wherein the display unit displays the second screen that informs the user of forgetting to take the medium related to settlement. The merchandise sales data processing device according to claim 1, wherein the display unit displays the second screen for notifying an error that has occurred in the settlement. 4. The display device according to claim 1, wherein the display unit displays the second screen when the amount of money input by the customer under the checkout operation is equal to or greater than a total amount corresponding to registered commodities. 5. The product sales data processing device according to claim 1. When the settlement corresponding to one customer is performed, registration of a product corresponding to the next customer of the one customer is enabled,
The said display means displays the 1st screen relevant to registration of the goods corresponding to the said next customer, and the 2nd screen corresponding to the settlement situation corresponding to the said 1 customer. A product sales data processing device according to claim 1. The system further includes a customer notification unit that performs notification for the notification to the customer,
The merchandise sales data processing device according to any one of claims 1 to 5, wherein the display unit displays the second screen together with the notification by the customer notification unit. 7. The settlement operation unit in which an operation related to settlement is performed under the customer's settlement operation is provided so as to face in a direction opposite to a direction in which a display surface of the display unit for the clerk is turned. A product sales data processing device according to any one of the preceding claims. A computer as a merchandise sales data processing device in which merchandise is registered by a clerk, and a checkout operation on the registered merchandise is performed by a customer,
A program for functioning as a display means for displaying a first screen related to the registration of the product and a second screen corresponding to a status of the checkout operation on a clerk side display unit.

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