JP7246951B2 - Merchandise sales data processor and its control program - Google Patents

Description

An embodiment of the present invention relates to a product sales data processing device and a control program for causing a computer to function as the device.

As for the tax system in which taxes are imposed on the consumption of goods, there is a so-called reduced tax rate system in which the tax rate for goods directly related to daily life such as beverages and foodstuffs is kept lower than for other goods. In the reduced tax rate system, the tax rate for products subject to the reduced tax rate is lower than the normal tax rate for products not subject to the reduced tax rate. However, there may be cases where products subject to the reduced tax rate are not subject to the reduced tax rate, depending on the mode of consumption. For example, if the products subject to the reduced tax rate are defined as “beverages or food items excluding eating out,” if you bring back the beverages or food items purchased at the store, the reduced tax rate applies. Become. However, in the case of so-called in-store eating and drinking, which means eating and drinking beverages or foods inside the store, they are not subject to the reduced tax rate because they are treated as eating out.

It is up to the consumer to decide whether to take the purchased beverage or food item home with them or to eat and drink in the store. For this reason, at stores, the staff in charge of accounting verbally confirm with consumers who have purchased foodstuffs subject to the reduced tax rate whether they are going to take them home or eat them in the store. In the case of in-store dining, it is necessary to manipulate product sales data such as POS (Point Of Sales) so that the product sales data is processed at the normal tax rate instead of the reduced tax rate.

JP 2018-173973 A

The problem to be solved by the embodiments of the present invention is to provide a merchandise sales data processing device that can easily cope with the case where the tax rate imposed on consumption of merchandise varies depending on the mode of consumption. .

In one embodiment, a merchandise sales data processing device includes identification means, acquisition means, reception means, calculation means, and processing means. The identification means receives a data signal including the first communication data or the second communication data and identifies the product to be offered to the consumer. The acquisition means acquires the tax rate of the tax imposed on the consumption of the product identified by the identification means when the data signal includes the second communication data . The receiving means receives setting of the tax rate. If the setting of the tax rate is not accepted, the calculation means calculates the tax amount from the price of the product identified by the identification means and the tax rate obtained by the acquisition means, and if the setting of the tax rate is accepted, the product Calculate the amount of tax from the price of and the set tax rate. The processing means processes the product sales data including the tax amount calculated by the computing means.

1 is a block diagram showing the circuit configuration of a POS terminal as an embodiment; FIG. Schematic diagram showing the main data structure of a product record saved in a product master file. Schematic diagram showing the data structure of a tax rate table. A schematic diagram showing a bar code symbol attached to a food service product and its surroundings. A schematic diagram showing a bar code symbol attached to a food service product and its surroundings. 4 is a flow chart showing main operating procedures of a controller provided in the scanner; 4 is a flow chart showing main procedures of information processing executed by the processor of the terminal main body according to the control program; 4 is a flow chart showing main procedures of information processing executed by the processor of the terminal main body according to the control program; 4 is a flow chart showing main procedures of information processing executed by the processor of the terminal main body according to the control program; FIG. 4 is a schematic diagram showing data structures of first communication data and second communication data; FIG. 4 is a schematic diagram showing an example of a display image related to product sales data; FIG. 4 is a schematic diagram showing an example of a display image related to product sales data; FIG. 4 is a schematic diagram showing a printed example of a receipt; Schematic diagram showing another embodiment of the first seal and the second seal.

Hereinafter, an embodiment of a product sales data processing device that can easily cope with the case where the tax rate imposed on the consumption of products changes depending on the form of consumption will be described with reference to the drawings.
In this embodiment, the reduced tax rate is applied to "beverages or foodstuffs excluding eating out". In other words, the tax rate imposed on beverages or foodstuffs is a reduced tax rate for take-out, but a normal tax rate for in-store dining. A POS (Point Of Sales) terminal installed at a checkout place of a retail store with an eat-in space is exemplified as a product sales data processing device of one embodiment.

FIG. 1 is a block diagram showing the essential circuit configuration of a POS terminal 1 according to one embodiment. A POS terminal 1 includes a scanner 2 and a terminal body 3 .

The scanner 2 functions as a reading device that reads information for identifying products provided to consumers, so-called product identification information. To implement this function, the scanner 2 includes an imaging device 21 , a controller 22 and a storage device 23 . The image capturing device 21 captures an image of a product held over a reading window (not shown). The controller 22 analyzes the image captured by the imaging device 21 and reads product identification information. The product identification information is barcode information attached to the product. The product identification information is not limited to barcode information. The product identification information may be two-dimensional data code information, character information, information related to the appearance feature amount of the product, or the like. The controller 22 outputs a data signal including product identification information to the terminal body 3 . The storage device 23 stores data required for image analysis by the controller 22 .

The terminal body 3 functions as a data processing device that processes data related to product sales. In order to realize this function, the terminal main body 3 includes a processor 31, a main memory 32, an auxiliary storage device 33, a clock 34, an input device 35, a first display device 36, a second display device 37, a scanner interface 38, a printer 39. , a communication interface 310 and a system transmission line 311 . The system transmission line 311 includes an address bus, a data bus, control signal lines and the like. The terminal body 3 includes a system transmission path 311, a processor 31, a main memory 32, an auxiliary storage device 33, a clock 34, an input device 35, a first display device 36, a second display device 37, a scanner interface 38, a printer 39, and a communication device. Connect interface 310 . In the terminal main body 3, a computer is constituted by a processor 31, a main memory 32, an auxiliary storage device 33, and a system transmission line 311 connecting them.

The processor 31 corresponds to the core part of the computer. The processor 31 controls each part to realize various functions of the POS terminal 1 according to an operating system or application program. The processor 31 is, for example, a CPU (Central Processing Unit).

The main memory 32 corresponds to the main memory portion of the computer. Main memory 32 includes a non-volatile memory area and a volatile memory area. The main memory 32 stores an operating system or application programs in a non-volatile memory area. The main memory 32 may store data necessary for the processor 31 to execute processing for controlling each part in a non-volatile or volatile memory area. The main memory 32 uses a volatile memory area as a work area in which data is appropriately rewritten by the processor 31 . The non-volatile memory area is, for example, ROM (Read Only Memory). A volatile memory area is, for example, a RAM (Random Access Memory).

The auxiliary storage device 33 corresponds to the auxiliary storage portion of the computer. For example, an EEPROM (Electric Erasable Programmable Read-Only Memory), HDD (Hard Disc Drive), SSD (Solid State Drive), or the like can be the auxiliary storage device 33 . The auxiliary storage device 33 stores data used when the processor 31 performs various types of processing, data created by processing in the processor 31, and the like. The auxiliary storage device 33 may store the above application programs.

Application programs include control programs. That is, the control program is stored in main memory 32 or auxiliary storage device 33 and executed by processor 31 . The method of installing the control program in the main memory 32 or the auxiliary storage device 33 is not particularly limited. The control program can be recorded on a removable recording medium or distributed via network communication and installed in the main memory 32 or the auxiliary storage device 33 . The recording medium may be of any form, such as a CD-ROM, memory card, etc., as long as it can store the program and is readable by the device.

The clock 34 functions as a time information source for the terminal body 3 . The processor 31 measures the current date and time based on the time information kept by the clock 34 .

The input device 35 accepts operation input by the operator of the POS terminal 1 . The input device 35 is, for example, a keyboard. The input device 35 may be, for example, a touch panel.

The first display device 36 displays images to the operator of the POS terminal 1 . The images include a registered image showing data of products registered for sale as products purchased by a customer who is a consumer, and an accounting image showing data related to customer accounting, such as the total amount of purchased products. The second display device 37 displays images to the customer. The image is the above-described registration image, accounting image, or the like. The first display device 36 and the second display device 37 are examples of display means for displaying product information. The first display device 36 and the second display device 37 are liquid crystal displays, for example. The screen size of the display may be the same or different between the first display device 36 and the second display device 37 .

A scanner interface 38 performs data communication with the scanner 2 . A scanner interface 38 receives data signals output from the scanner 2 .
The printer 39 prints the data of the product registered for sale as a purchased product on a roll of receipt paper. The receipt paper on which product data is printed is cut for each customer and issued as a receipt. The printer 39 is an example of issuing means for issuing a receipt on which product information is recorded.

The communication interface 310 performs data communication with an external device connected via a communication network 4 such as a LAN (Local Area Network). The external equipment includes store server 5 . The store server 5 is a server computer having a product master file 51, a tax rate table 52, and the like. A POS system is configured by a store server 5 controlling a plurality of POS terminals 1 connected via a communication network 4 . Since such a POS system is well known, the description is omitted here.

FIG. 2 is a schematic diagram showing the main data structure of the product record 51R saved in the product master file 51. As shown in FIG. The product master file 51 stores a product record 51R generated for each product sold at the store. The product record 51R includes a product code, a classification code, a product name, a price, a tax exemption flag F1, a reduction target flag F2, a restaurant target flag F3, and the like.

A product code is a unique code set for each product to identify each product. Each product is printed with a bar code symbol, which is a bar code of the product code. Alternatively, a label printed with a bar code symbol is attached to each product. A classification code is a unique code assigned to a product classification. Each product is sorted into one of the product categories according to its attributes. Product categories include, for example, beverages, foodstuffs, daily necessities, magazines/books, and the like. The product name and price are the product name identified by the product code and the sales price per product.

The tax-exempt flag F1 is 1-bit information for identifying whether or not the product identified by the product code is a tax-exempt item. In this embodiment, the tax-exempt flag F1 is set to "1" for the tax-exempt item, and the tax-exempt flag F1 is set to "0" for the taxable item.

The reduction target flag F2 is 1-bit information for identifying whether or not the product identified by the product code is subject to a reduced tax rate. In this embodiment, the reduction target flag F2 is set to "1" for products subject to the reduced tax rate, and the reduction target flag F2 is set to "0" for products not subject to the reduced tax rate.

The eating out flag F3 is 1-bit information for identifying whether or not the product identified by the product code is treated as eating out when eaten in the eat-in space. In the present embodiment, when a consumer purchases foodstuffs such as boxed lunches, rice balls, bread, and side dishes and eats them in the eat-in space in the store, they are treated as eating out. Other foodstuffs such as sweets and perishables are not treated as eating out even if eaten in the eat-in space. In this way, it is assumed that even among products subject to the reduced tax rate, that is, beverages and foods, there are products that can be treated as restaurants and products that cannot be treated as restaurants. The food service target flag F3 is set to "1" for products that can be treated as food service, and the food service target flag F3 is set to "0" for products that are not treated as food service. It should be noted that the criterion for determining whether or not to treat the food as eating out is not limited to this.

FIG. 3 is a schematic diagram showing the data structure of the tax rate table 52. As shown in FIG. The tax rate table 52 has a normal tax rate area 52A and a reduced tax rate area 52B. The normal tax rate area 52A describes the normal tax rate of the tax system that imposes a tax on the consumption of goods. The reduced tax rate area 52B describes the reduced tax rate of the tax system. In this embodiment, the normal tax rate is 10% and the reduced tax rate is 8%. The data of the tax rate table 52 is distributed to the store server 5, downloaded to the main memory 32 of the terminal main body 3, and stored in the storage device 23 of the scanner 2 as well.

4 and 5 are schematic diagrams showing the bar code symbol 61 attached to a product that can be treated as a restaurant among the products subject to the reduced tax rate and its surroundings. FIG. 4 shows a first state in which the second seal 8 is attached so as to cover the first seal 7 attached to the product, and FIG. 5 shows a second state in which the second seal 8 is peeled off. showing.

Here, for convenience of explanation, hereinafter, a product subject to a reduced tax rate is referred to as a reduced tax rate product. Among the reduction target products, products that can be handled as eating out are referred to as eating out target products.

In FIG. 4 or FIG. 5, the bar code symbol 61 represents a 13-digit product code [4901234567890] conforming to the JAN code standard. The product code includes country code, manufacturer code, product item code, check digit, and the like. By the way, the bar code symbol 61 is attached not only to the food service products, but also to the reduction target products other than the food service products and to the ordinary products that are not subject to the reduced tax rate.

As shown in FIG. 4 or FIG. 5, a food service product is provided with a double circle specific mark 62 in the vicinity of the bar code symbol 61, in this embodiment, on the upper left of the drawing. Also, a seal area 63 is formed in the vicinity of the specific mark 62, in this embodiment, on the upper right side of the drawing. An area surrounding the bar code symbol 61, the specific mark 62, and the seal area 63 is used as an identification area 6 for the food to be eaten out.

The specific mark 62 is a mark for specifying that the product is a food service product. The pasting position of the specific mark 62 is not limited to the position shown in FIG. 4 or FIG. It may be attached to any position within the identification area 6 . Also, the shape of the specific mark 62 is not limited to that shown in FIG. 4 or FIG. Any shape that does not affect the recognition of the barcode represented by the barcode symbol 61 may be used.

A seal region 63 is a region for attaching the first seal 7 and the second seal 8 . In the seal area 63, the first seal 7 and the second seal 8 are attached to the product with the specific mark 62, that is, the food service product. The position of the seal area 63 is determined with reference to the position of the specific mark 62 . In the example shown in FIG. 4 or FIG. 5, the upper left rectangular area of the specific mark 62 is the seal area 63 . The shape and size of the sealing area 63 are not limited to those shown in FIGS. The point is that the size of the area does not protrude from the identification area 6 and the area allows the first seal 7 and the second seal 8 to be attached.

As shown in FIG. 5, the first seal 7 shows information indicating that the tax rate for eating the product in the eat-in space is the normal tax rate of 10% instead of the reduced tax rate of 8%. . The first seal 7 is attached to the product in the seal area 63 .

As shown in FIG. 4, on the second seal 8 is written information to the effect that the second seal 8 should be peeled off when the product is to be eaten in the eat-in space. The second seal 8 is attached so as to cover the entire first seal 7 .

In this way, the food items are sold with the specific mark 62 affixed near the bar code symbol 61 and the first seal 7 and the second seal 8 affixed to the seal area 63 . Then, the consumer who purchases the item for eating out and eats in the eat-in space peels off the second seal 8. - 特許庁A consumer who brings home the product for eating out does not peel off the second seal 8.例文帳に追加Instead of peeling off the second sticker 8 by the consumer, the second sticker 8 may be peeled off by a cashier who operates the POS terminal 1 . Also, the store sells the product without attaching the first seal 7 and the second seal 8 to the seal area 63 . Then, when a consumer who purchases a product for eating out requests to eat and drink in the store, the clerk or the consumer may stick the first sticker 7 on the sticker area 63 . In this case, the second seal 8 can be omitted, which is economical.

Now, the store clerk in charge of accounting holds the product to be purchased by the consumer over the reading window of the scanner 2 . At this time, the store clerk holds the commodity over the reading window so that the bar code symbol 61 is imaged by the imaging device 21 . In addition, the store clerk holds the product over the reading window so that not only the bar code symbol 61 but also the specific mark 62 and the seal area 63 are imaged by the imaging device 21, particularly for the product for eating out. In other words, the store clerk holds the product over the reading window so that the identification area 6 is photographed. The imaging device 21 of the scanner 2 captures an image of the product when the store clerk holds the product over the reading window.

FIG. 6 is a flow chart showing the main operating procedure of the controller 22. As shown in FIG. The operation of the controller 22 will be described below with reference to FIG. Note that the contents of the processing shown in FIG. 6 and described below are examples. The processing procedure and processing contents are not particularly limited as long as similar results can be obtained.

The controller 22 acquires the frame image captured by the imaging device 21 as Act1. Then, in Act 2, the controller 22 detects whether or not the barcode symbol 61 is displayed in the frame image. If the barcode symbol 61 is not displayed, the controller 22 determines NO in Act2 and returns to Act1. The controller 22 captures the next frame image from the imaging device 21 .

When detecting that the barcode symbol 61 is displayed in the frame image, the controller 22 determines YES in Act2, and proceeds to Act3. The controller 22 reads the product code from the bar code symbol 61 as Act3. In Act 4, the controller 22 determines whether or not the product code has been successfully read. If the reading of the product code fails, the controller 22 determines NO in Act4 and returns to Act1. The controller 22 captures the next frame image from the imaging device 21 . In this way, the controller 22 waits for a frame image showing the bar code symbol 61 from which the product code can be read to be captured from the imaging device 21 .

When the product code is successfully read from the bar code symbol 61 displayed in the frame image, the controller 22 determines YES in Act4, and proceeds to Act5. In Act 5, the controller 22 detects whether or not the specific mark 62 is displayed in the frame image. If the specific mark 62 is not displayed, the controller 22 determines NO in Act5 and proceeds to Act6. The controller 22 generates first communication data D1 (see FIG. 10) as Act6. In this way, the controller 22 generates the first communication data D1 when capturing a frame image in which the bar code symbol 61 capable of reading the commodity code is displayed but the specific mark 62 is not displayed. The first communication data D1 will be described later.

When the specific mark 62 is displayed in the frame image, the controller 22 determines YES in Act5, and proceeds to Act7. In Act7, the controller 22 detects the image of the seal area 63 determined with reference to the position where the specific mark 62 is projected.

The controller 22 detects whether or not the first seal 7 is displayed in the seal area 63 in Act8. If the first sticker 7 is not displayed, the controller 22 determines NO in Act8 and proceeds to Act9. The controller 22 acquires the reduced tax rate from the tax rate table 52 as Act9. When the first seal 7 is displayed in the seal area 63, the controller 22 determines YES in Act8, and proceeds to Act10. The controller 22 acquires the normal tax rate from the tax rate table 52 as Act10. A tax rate table 52 is stored in the storage device 23 .

If the reduced tax rate or normal tax rate is obtained in Act9 or Act10, the controller 22 generates second communication data D2 (see FIG. 10) in Act11. In this way, the controller 22 generates the second communication data D2 when capturing the frame image in which the specific mark 62 is displayed together with the bar code symbol 61 from which the product code can be read.

FIG. 10 is a schematic diagram showing the data structure of the first communication data D1 and the second communication data D2. The first communication data D1 is composed of a 13-digit product code. That is, the first communication data D1 conforms to the barcode system of the JAN code standard. The product code is data read from the bar code symbol 61 in Act3.

The second communication data D2 consists of a 13-digit product code, a 1-digit change flag, a 4-digit tax rate, a 1-digit tax type flag, and a 1-digit check digit. That is, the second communication data D2 conforms to the CODE-128 barcode system. The product code is data read from the bar code symbol 61 in Act3.

The change flag is data that identifies whether to change the tax rate. As described above, in this embodiment, the tax rate is 8%, which is the reduced tax rate, in the case of take-out food items. However, if the food service item is an in-house restaurant, the tax rate will be changed from the reduced tax rate of 8% to the normal tax rate of 10% because it will be treated as eating out. When the tax rate is changed from the reduced tax rate to the normal tax rate, the change flag is "1". That is, the change flag can be data that instructs to change the tax rate.

When the product for eating out is to be taken home, the second seal 8 remains attached to the seal area 63 of the product. However, when the product for eating out is to be eaten in the restaurant, the second seal 8 is peeled off and the first seal 7 appears in the seal area 63 . That is, when the first sticker 7 is not displayed in the sticker area 63 of the image captured by the imaging device 21, the controller 22 determines that it is take-out. For takeout, the tax rate does not change. At this time, the controller 22 acquires the reduced tax rate in Act9. The controller 22 then generates the second communication data D2 with the change flag set to "0" and the tax rate set to the reduced tax rate value of "8".

On the other hand, when the first sticker 7 is displayed in the sticker area 63 of the image captured by the imaging device 21, the controller 22 determines that the restaurant is eating and drinking. In the case of eating and drinking in the store, the tax rate will be changed. At this time, the controller 22 acquires the normal tax rate in Act10. The controller 22 then generates the second communication data D2 with the change flag set to "1" and the tax rate set to the normal tax rate value of "10".

The tax type flag is data for identifying whether the tax-inclusive method or the tax-exclusive method is used. Whether the tax imposed on the consumption of goods is tax-inclusive or tax-exclusive is determined by the store or its operating body. In the tax-inclusive store or operating entity, the price of the product record 51R stored in the product master file 51 is the tax-inclusive price. In the tax-excluded store or operating entity, the price of the product record 51R is the tax-excluded price. In this embodiment, the tax type flag specifying the tax-inclusive method is set to "1", and the tax type flag specifying the tax-exclusive method is set to "0". The value of the tax type flag is stored in the storage device 23 . The controller 22 reads the value of the tax type flag stored in the storage device 23 and incorporates it into the second communication data D2. The controller 22 then calculates a check digit to complete the second communication data D2.

Thus, when the image of the identification area 6 of the food service product with the second sticker 8 attached is captured by the imaging device 21, the controller 22 sets the product code of the food service product, the change flag of "0", Second communication data D2 is generated that includes a tax rate of "8" and a tax type flag of "0" or "1". When the imaging device 21 captures an image of the identification area 6 of the food service product with the second seal 8 peeled off to expose the first seal 7, the controller 22 outputs the product code of the food service product and " Second communication data D2 including a change flag of "1", a tax rate of "10", and a tax type flag of "0" or "1" is generated.

Returning to the description of FIG.
When the controller 22 finishes generating the first communication data D1 or the second communication data D2 in Act6 or Act11, it proceeds to Act10. The controller 22 outputs the generated first communication data D1 or second communication data D2 to the terminal body 3 as Act10. After that, the controller 22 returns to Act1. The controller 22 captures the next frame image from the imaging device 21 .

In this way, the scanner 2 functioning as a reading device reads the product code, which is product identification information, from the information of the barcode symbol 61 included in the image of the product held over the reading window. Here, when the specific mark 62 is not displayed on the image, the scanner 2 generates the first communication data D1 and outputs it to the terminal body 3 .

On the other hand, when the specific mark 62 is displayed in the image and the first seal 7 is displayed in the seal area 63 specified by the specific mark 62, the scanner 2 changes the status to instruct the tax rate change. The second communication data D2 including the flag is generated and output to the terminal main body 3. When the first sticker 7 is not displayed in the sticker area 63, the scanner 2 generates the second communication data D2 including the change flag indicating that the tax rate is not changed, and outputs the second communication data D2 to the terminal body 3. . Thus, the scanner 2 outputs the first communication data D1 or the second communication data D2 to the terminal body 3 each time the product code is read.

Note that the technique of recognizing the barcode symbol 61, the specific mark 62, the first sticker 7, etc. from the image captured by the imaging device 21 is possible by using a well-known pattern recognition technique or the like. Therefore, description here is omitted.

7 to 9 are flow charts showing main procedures of information processing executed by the processor 31 of the terminal main body 3 according to the above-described control program. The operation of the terminal body 3 will be described below with reference to FIGS. 7 to 9. FIG. Note that the contents of the processing shown in FIGS. 7 to 9 and described below are examples. The processing procedure and processing contents are not particularly limited as long as similar results can be obtained.

The processor 31 waits for a data signal from the scanner 2 as Act21. When the scanner interface 38 receives the data signal output from the scanner 2, the processor 31 determines YES in Act21 and proceeds to Act22. The processor 31 identifies whether the data signal received in Act22 is the signal of the first communication data D1 or the signal of the second communication data D2.

If the pattern of the data signal matches that of the barcode system of the JAN code standard, the data signal is the signal of the first communication data D1. If the pattern of the data signal matches that of the CODE-128 barcode system, the data signal is the signal of the second communication data D2.

When the signal of the first communication data D1 is received from the scanner 2, the processor 31 determines YES in Act22 and proceeds to Act23. The processor 31 extracts the product code from the first communication data D1 as Act23. Then, the processor 31 accesses the store server 5 in Act 24 and acquires the product record 51R including the product code from the product master file 51. FIG.

The processor 31 examines the tax exemption flag F1 included in the product record 51R as Act25. Here, if the tax exemption flag F1 is "1", that is, if the product code of the tax exempt product is read by the scanner 2, the processor 31 determines YES in Act25 and proceeds to Act34. The processing of Act34 will be described later.

In Act25, if the tax exemption flag F1 is "0", that is, if the product code of the taxable product is read by the scanner 2, the processor 31 determines NO and proceeds to Act26. The processor 31 examines the reduction target flag F2 included in the product record 51R as Act26. Here, when the reduction target flag F2 is "0", that is, when the product code of the product not targeted for reduction is read by the scanner 2, the processor 31 determines NO in Act26, and proceeds to Act27. . The processor 31 acquires the normal tax rate from the tax rate table 52 as Act 27 . Processor 31 then proceeds to Act30. The processing of Act30 will be described later.

In Act26, if the reduction target flag F2 is "1", that is, if the product code of the reduction target product is read by the scanner 2, the processor 31 determines YES and proceeds to Act28. As Act28, the processor 31 examines the restaurant target flag F3 included in the product record 51R.

Here, if the eating out target flag F3 is "1", that is, if the product code of the eating out target product is read by the scanner 2, the processor 31 determines YES in Act28 to make an error.

In the case of a food item for eating out, the scanner 2 does not generate the first communication data D<b>1 and output it to the terminal main body 3 . Therefore, in Act28, which is a part of the processing when the first communication data D1 is received, the eating out flag F3 being "1" indicates an abnormal state. As a cause of such a state, for example, when the product is held up to the reading window, the bar code symbol 61 is recognized but the specific mark 62 is not recognized. Alternatively, it is conceivable that the specific mark 62 pasted on the identification area 6 may come off. If the specific mark 62 is not recognized by the scanner 2, it cannot be specified whether the product for dining out is for take-out or for eating in the restaurant. Therefore, the processor 31 regards the read product code as an error and stops subsequent processing.

In Act28, if the eating out flag F3 is "0", the processor 31 determines NO and proceeds to Act29. The processor 31 acquires the reduced tax rate from the tax rate table 52 as Act29. Processor 31 then proceeds to Act30.

Thus, when the processor 31 acquires the normal tax rate from the tax rate table 52 in Act27 or acquires the reduced tax rate in Act29, the process proceeds to Act30. A tax rate table 52 is stored in the main memory 32 . Processor 31 may refer to tax rate table 52 of store server 5 .

The processor 31 confirms in Act 30 whether the tax imposed on the consumption of the product is the tax-exclusive method or the tax-inclusive method. This tax-related information is stored in advance in the auxiliary storage device 33 . In the case of the tax-inclusive method, the processor 31 determines NO in Act30, and proceeds to Act31. The processor 31 calculates the inclusive tax amount R1 included in the price P1 from the price P1 included in the product record 51R as Act31 and the tax rate Q1 obtained in Act27 or Act29. The inclusive tax amount R1 is calculated by the following formula (1).
R1=P1-[P1/(1+Q1)] (1)
After calculating the inclusive tax amount R1, the processor 31 proceeds to Act34.

On the other hand, in the case of the tax-excluded method, the processor 31 determines YES in Act30, and proceeds to Act32. The processor 31 calculates an exclusive tax amount R2 as Act32. When the price is represented by P1 and the tax rate is represented by Q1, the exclusive tax amount R2 is calculated by the following equation (2).
R2=P1*Q1 (2)
After calculating the tax-excluded amount R2, the processor 31 calculates the tax-inclusive price P2 as Act33. The tax-inclusive price P2 is calculated by the following equation (3).
P2=P1+R2 (3)
After calculating the tax-inclusive price P2, the processor 31 proceeds to Act34.

In this way, the processor 31 proceeds to Act34 when it is determined that the product is tax-free in Act25, or when the tax-inclusive amount R1 or the tax-inclusive price P2 is calculated in Act31 or Act33.

The processor 31 performs registration processing of merchandise sales data as Act 34 . The registration process differs depending on whether the item is determined to be non-taxable, when the inclusive tax amount R1 is calculated, and when the tax-inclusive price P2 is calculated together with the exclusive tax amount R2. If the product is determined to be non-taxable, the processor 31 generates product sales data including the product code of the product record 51R and the price P1, and registers it in the registration area of the main memory 32. FIG. When the tax-inclusive amount R1 is calculated, the processor 31 generates product sales data including the product code of the product record 51R, the price P1, and the tax-inclusive amount R1, and registers it in the registration area. When the tax-inclusive price P2 is calculated together with the tax-exclusive amount R2, the processor 31 generates product sales data including the product code of the product record 51R, the tax-inclusive price P3, and the tax-exclusive price R2, and registers it in the registration area.

It should be noted that whether the tax imposed on the consumption of goods is tax-inclusive or tax-exclusive is determined by the store or its operating body, as described above. Therefore, the routine that determines NO in Act 30 and calculates the tax-inclusive amount R1 and the routine that determines YES in Act 30 and calculates the tax-exclusive amount R2 and the tax-inclusive price P2 are not mixed.

After completing the product sales data registration process, the processor 31 performs display processing of the product sales data as Act 35 . Specifically, the processor 31 causes the first display device 36 and the second display device 37 to display the product name and the price P1 or the tax-inclusive price P2 of the product record. The processor 31 may cause the first display device 36 or the second display device 37 to display information other than the product name or price.

After finishing the display processing of the product sales data, the processor 31 ends the processing when the first communication data D1 is received. Processor 31 then waits for the next data reception.

Return to Act22.
When the signal of the second communication data D2 is received from the scanner 2, the processor 31 determines NO in Act22, and proceeds to Act41 in FIG. The processor 31 extracts the product code from the second communication data D2 as Act41. Then, the processor 31 accesses the store server 5 in Act 42 and acquires the product record 51R including the product code from the product master file 51 .

The processor 31 examines the restaurant target flag F3 included in the product record 51R as Act43. As described above, the scanner 2 generates the second communication data D<b>2 and outputs the second communication data D<b>2 to the terminal main body 3 in the case of the food item. The first communication data D<b>1 is generated and output to the terminal main body 3 for products other than the food service target product. Therefore, when the signal of the second communication data D2 is received from the scanner 2, the restaurant target flag F3 included in the product record 51R must be "1".

However, if the eating out flag F3 is "0", the processor 31 determines NO in Act43, and proceeds to Act44. For example, if the specific mark 62 is mistakenly affixed to a product other than the restaurant target product, the restaurant target flag F3 may become "0". In this case, the processor 31 issues a warning as Act44. For example, the processor 31 causes the first display device 36 to display a warning message such as "Products other than food service products are marked with a specific mark." Note that the processor 31 may use sound or light to notify that a product other than the food product is marked with a specific mark.

When the accounting clerk who operates the POS terminal 1 receives the warning, he/she operates the input device 35 to make an input for confirmation. For example, if the input device 35 is a keyboard, a confirmation key is pressed. For example, if the input device 35 is a touch panel, a confirmation soft key on the display screen is touched.

The processor 31 waits for confirmation input in Act 45 . When the input for confirmation is made, the processor 31 determines YES in Act45, and proceeds to Act25 in FIG. The processor 31 then executes the processing of Act25 to Act34 in the same manner as described above. That is, the processor 31 executes registration processing, display processing, and the like for products other than food service products.

In Act43, if the eating out flag F3 is "1", the processor 31 determines YES, and proceeds to Act46. The processor 31 examines the change flag included in the second communication data D2 as Act46. If the change flag is "0", that is, if the tax rate change is not instructed, the processor 31 determines NO in Act46 and proceeds to Act47. The processor 31 acquires the reduced tax rate from the tax rate table 52 as Act 47 . The processor 31 then proceeds to Act48.

The processor 31 confirms in Act 48 whether the tax imposed on the consumption of the product is the tax-exclusive method or the tax-inclusive method. In the case of the tax-inclusive method, the processor 31 determines NO in Act 48 and proceeds to Act 49 . The processor 31 uses the price P1 included in the product record 51R in Act 49 and the tax rate Q1 obtained in Act 47 to calculate the inclusive tax amount R1 included in the price P1 using the above equation (1). After calculating the inclusive tax amount R1, the processor 31 proceeds to Act52.

On the other hand, in the case of the tax-excluded method, the processor 31 determines YES in Act48, and proceeds to Act50. As Act50, the processor 31 calculates the tax-excluded amount R2 from the price P1 and the tax rate Q1 according to the formula (2). After calculating the tax-excluded amount R2, the processor 31, in Act 51, calculates the tax-inclusive price P2 according to the formula (3). After calculating the tax-inclusive price P2, the processor 31 proceeds to Act52.

Thus, the processor 31 proceeds to Act52 when the tax-inclusive amount R1 is calculated in Act49 or the tax-inclusive price P2 is calculated in Act51. The processor 31 performs registration processing of product sales data as Act 52 . The processor 31 also performs display processing of merchandise sales data as Act 53 . Since the registration processing and the display processing are the same as the processing of Act34 and Act35, detailed description thereof will be omitted here.

When the product sales data registration process and display process are finished, the processor 31 ends the process when the second communication data D2 is received. Processor 31 then waits for the next data reception.

Return to Act 46.
When the change flag included in the second communication data D2 is "1", that is, when the tax rate change is instructed, the processor 31 determines YES in Act46, and proceeds to Act61 in FIG. In Act 61, the processor 31 confirms whether the tax imposed on the consumption of the product is the tax-exclusive method or the tax-inclusive method. In the case of the tax-inclusive method, the processor 31 determines YES in Act61, and proceeds to Act62. The processor 31 acquires the reduced tax rate from the tax rate table 52 as Act62. In Act63, the processor 31 also calculates the tax-excluded price P3 for the price P1 included in the product record 51R.

As described above, in the case of the tax-inclusive method, the price P1 stored in the product master file 51 includes the tax-inclusive amount. Therefore, the processor 31 uses the reduced tax rate acquired in Act62 to calculate the tax-excluded price P3. The tax-excluded price P3 is calculated by the following equation (3), where Q2 represents the reduced tax rate.
P3=P1/(1+Q2) (3)
After calculating the tax-excluded price P3, the processor 31 proceeds to Act64.

On the other hand, if the tax imposed on the consumption of the product is tax-excluded, the price P1 stored in the product master file 51 is the tax-excluded price P3. Therefore, the processor 31 determines NO in Act61, skips the processing of Act62 and Act63, and proceeds to Act64.

The processor 31 acquires the normal tax rate from the tax rate table 52 as Act64. Then, in Act 65, the processor 31 calculates the tax-excluded amount R3 from the tax-excluded price P3 and the normal tax rate. The exclusive tax amount R3 is calculated by the following formula (4), where the normal tax rate is represented by Q3.
R3=P3*Q3 (4)
After calculating the tax-excluded amount R3, the processor 31 calculates the tax-inclusive price P4 from the tax-excluded price P3 and the tax-exclusive amount R3. The tax-inclusive price P4 is calculated by the following equation (5).
P4=P3+R3 (5)
After calculating the tax-inclusive price P4, the processor 31 performs registration processing of product sales data in Act67. Further, the processor 31 performs display processing of merchandise sales data as Act 68 . Since the registration processing and the display processing are the same as the processing of Act34 and Act35, detailed description thereof will be omitted here.

When the product sales data registration process and display process are finished, the processor 31 ends the process when the second communication data D2 is received. Processor 31 then waits for the next data reception.

FIG. 11 shows a case where a product for eating out with the product name "AAA" is taken home at a tax-inclusive store, that is, when the information in the identification area 6 is read by the scanner 2 without peeling off the second sticker 8. It is a display image SC1 of merchandise sales data. FIG. 12 is a display image SC2 of product sales data when the same product is served as an in-store meal at the same store, that is, when the information in the identification area 6 is read by the scanner 2 after the second seal 8 is peeled off. The display image SC1 and the display image SC2 are displayed on the first display device 36 under the control of the processor 31 as the first control means. The display image SC<b>1 and the display image SC<b>2 may be displayed on the second display device 37 under the control of the processor 31 .

As shown in FIG. 11, in the display image SC1, the product name field AR1 displays the product name "AAA", the point field AR2 displays the score "1", and the price field AR3 displays the tax-inclusive price "400 yen". The reduced tax rate "8%" is displayed in the tax rate column AR4, and the tax amount "30 yen" is displayed in the tax amount column AR5.

As shown in FIG. 12, the display image SC2 displays the product name "AAA" in the product name column AR1, the score "1" in the score column AR2, and the tax-inclusive price "407 yen" in the price column AR3. The normal tax rate "10%" is displayed in the tax rate column AR4, and the tax amount "37 yen" is displayed in the tax amount column AR5. Further, the product name column AR1 displays a mark M1 indicating that the tax rate has been changed due to eating and drinking in the store.

Therefore, the store clerk in charge of accounting can easily recognize that the food service product to be eaten in the restaurant has been correctly registered in the POS terminal 1 by the mark M1 being displayed in the product name column AR1. To put it the other way around, the store clerk can easily recognize even if a food item to be taken home is illegally registered in the POS terminal 1 because the mark M1 is displayed in the product name field AR1.

Note that the display position of the mark M1 is not limited to the product name column AR1. For example, it may be the tax rate column AR4 or the tax amount column AR5. The point is that the store clerk or consumer who confirms the display image SC2 can recognize that the tax rate has been changed.

FIG. 13 is an example of issuance of a receipt RS1 in the case where a product for eating out with the product name "AAA" is for in-store dining, and two products with the product names "BBB" and "CCC" are for take-out. The product name "BBB" is a product to which a normal tax rate is applied, and the product name "CCC" is a reduced tax rate product to which a reduced tax rate is applied. The receipt RS1 is printed and issued by the printer 39 under the control of the processor 31 as the second control means.

As shown in FIG. 13, for the products that are offered as in-store dining, the product name "AAA" and a mark M2 indicating that the tax rate has been changed due to the in-store dining are printed. Therefore, the consumer who received the receipt RS1 can prove that the product with the product name "AAA" is correctly registered as an in-store dining item.

As described in detail above, in the POS terminal 1, the computer mainly composed of the processor 31 of the terminal main body 3 executes the processes of Act21 to Act23 in FIG. 7 and Act41 in FIG. there is The acquisition means is configured by the same computer executing the processes of Act27 and Act29 in FIG. 7 and the process of Act47 in FIG. Further, the same computer constitutes reception means by executing the processing of Act 46 in FIG. 7, Act 48 to Act 50 in FIG. 8, and Act 61 to Act 65 in FIG. 9, thereby forming computing means. Further, the same computer constitutes processing means by executing the processing of Act 34 in FIG. 7 and the processing of Act 52 in FIG.

With the POS terminal 1 having such a configuration, even if the tax rate imposed on the consumption of goods changes depending on the form of consumption, it is only necessary to peel off the second seal 8 or not. , can process sales data including the correct tax amount. That is, when the form of consumption is take-out, the store clerk can read the image of the identification area 6 with the scanner 2 without removing the second seal 8 . If the form of consumption is eating and drinking in the store, the store clerk peels off the second seal 8 and causes the scanner 2 to read the image of the identification area 6 . The operator who causes the scanner 2 to read the image of the identification area 6 is not limited to the store clerk. The consumer may operate the scanner 2 himself to read the image of the identification area 6 .

As described above, according to the present embodiment, it is possible to provide the POS terminal 1 that can easily cope with the case where the tax rate of the tax imposed on the consumption of goods changes depending on the form of consumption.

Further, in the POS terminal 1, a computer mainly composed of the processor 31 of the terminal main body 3 executes the processing of Act41 to Act44 in FIG. 8, thereby forming warning means. Incidentally, in Act 43 of FIG. 8, when the second communication data D2 is received from the scanner 2 and the eating out target flag F3 included in the product record 51R is "0", the process proceeds to Act 44 to issue a warning. I have to. The second communication data D2 includes a change flag as information indicating whether to change the tax rate. On the other hand, the fact that the eating out target flag F3 included in the product record 51R is "0" means that the product record 51R is data of a product that is not subject to tax rate change. Therefore, when receiving the second communication data D2 containing the change flag indicating the tax rate change along with the product code of the product not subject to the tax rate change, the POS terminal 1 issues a warning.

As described above, according to the POS terminal 1 of the present embodiment, it is also possible to prevent a mistake such as registering a product that is not subject to tax rate change after changing the tax rate.

Further, the computer mainly including the processor 31 executes the processing of Act25 to Act35 in FIG. 7 after the warning is cancelled. That is, when the calculating means receives the second communication data D2 containing the change flag for instructing the change of the tax rate together with the product code of the product not subject to the tax rate change, the calculation means calculates the price of the product and the tax rate obtained by the acquisition means. Calculates tax. Therefore, according to the POS terminal 1, products can always be registered with the correct tax rate.

Although the embodiment of the product sales data processing device that can easily cope with the case where the tax rate of the tax imposed on the consumption of the product changes depending on the form of consumption has been described above, the embodiment is not limited to this. do not have.

In the above embodiment, the first sticker 7 attached to the sticker area 63 is described as having information indicating that the tax rate is 10% of the normal tax rate. As another embodiment, the first sticker 70 (see FIG. 14) may be a sticker showing information indicating that the tax rate is the reduced tax rate of 8%. In this case, a second sticker 80 (see FIG. 14) that covers the first sticker 70 is provided with information indicating that the second sticker 80 should be peeled off if the product is to be taken home. be done. In Act 8 of FIG. 6, the controller 22 of the scanner 2 determines NO when the first seal 70 is displayed in the seal area 63, and determines YES when the first seal 70 is not displayed. Just do it.

FIG. 14 shows another embodiment in which a seal 90 formed by arranging the first seal 7 and the second seal 8 and the first seal 70 and the second seal 80 is attached to the product. In another embodiment, the clerk or consumer removes the second seal 80 from the seal 90 when taking the food item home. When the product to be eaten out is to be served in-store, the clerk or consumer peels off the second seal 8 from the seal 90 . In this way, in other embodiments, either the second seal 8 or 80 is always peeled off for the food item. Therefore, it is possible to prevent the clerk from forgetting to confirm with the consumer.

Further, in the case of this other embodiment, the first sticker 7 or the first sticker 70 is displayed near the barcode symbol 61 by the imaging device 21 regardless of whether the product to be eaten out is taken home or eaten in the restaurant. An image is taken. Therefore, it is possible to specify whether or not the product is a food service product depending on whether or not the first sticker 7 or the first sticker 70 is displayed. Therefore, the specific mark 62 may be omitted.
The first seal 7 and the second seal 8, and the first seal 70 and the second seal 80 may be arranged separately and attached to the product.

Further, in the above-described embodiment, the case where the first seal 7 and the second seal 8 are attached in advance to the seal area 63 for the product for eating out has been exemplified. Regarding this point, before having the scanner 2 read the bar code symbol 61 of the product to be eaten out, the clerk confirms whether it is an in-store meal or a take-out, and in the case of an in-store meal, the first sticker 7 is attached to the sticker area 63. You may Alternatively, the first seal 7 may be attached to the seal area 63 when the consumer himself eats and drinks in the store. Alternatively, the first seal 70 may be attached to the seal area 63 by a store clerk or a consumer in the case of take-out.

Further, in the above-described embodiment, the first seal 7 and the second seal 8 are attached to the seal area 63 and the specific mark 62 for specifying the position of the seal area 63 is attached to the product for eating out. bottom. Regarding this point, it is also possible to omit the specific mark 62 by setting, for example, a fixed size area around the bar code symbol 61 as the seal area 63 by programming.

It should be noted that instead of the first seal 7 or the first seal 70, it is also possible to apply a two-dimensional data code or bar code dedicated to tax rate change.

In the above embodiment, the second communication data D2 is composed of the product code, change flag, tax rate, tax type flag, and check digit. Among these items, the information on the tax rate and the type of tax can be obtained by the terminal body 3, so it does not necessarily have to be included in the second communication data D2. In other words, the second communication data D2 should include at least a product code, which is product identification information, and a change flag, which is information indicating whether to instruct to change the tax rate.

Further, in the above-described embodiment, the receiving means has been described as a means for receiving whether or not the tax rate change is set by the change flag. The receiving means is not limited to this. For example, the accepting means may be means for accepting whether or not a tax rate is set in the second communication data D2. In this case, the second communication data D2 should include at least the product code, which is product identification information, and the tax rate.

Also, the code system of the first communication data D1 and the second communication data D2 is not limited to the code system described in the above embodiment. In short, it is sufficient that the first communication data D1 can notify the terminal body 3 of information identifying the product to be provided to the consumer. The second communication data D2 should be capable of notifying the terminal body 3 of information identifying the product to be provided to the consumer and information instructing to change the tax rate.

In the above embodiment, the first display device 36 and the second display device 37 provided integrally with the terminal main body 3 have been described as an example of display means. The display means may not necessarily be provided integrally with the terminal main body 3 . In this case, the computer of the terminal main body 3 that constitutes the processing means may output the product information for which the sales data has been processed to the display means provided separately from the terminal main body 3 .

Additionally, while several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.
In addition, the description of the scope of claims as originally filed for this application will be added below.
[C1]
identification means for identifying merchandise;
obtaining means for obtaining a rate of tax imposed on the goods identified by the identifying means;
receiving means for receiving the setting of the tax rate;
When the setting of the tax rate is not accepted, the tax amount is calculated from the price of the product identified by the identification means and the tax rate obtained by the acquisition means, and when the setting of the tax rate is accepted , a calculation means for calculating a tax amount from the price of the product and the set tax rate;
a processing means for processing the sales data of the product, including the tax amount calculated by the computing means;
A merchandise sales data processing device comprising:
[C2]
warning means for warning when the reception means receives the setting of the tax rate when the product identified by the identification means is not subject to the setting of the tax rate;
2. The merchandise sales data processing device according to claim 1, further comprising:
[C3]
If the product identified by the identifying means is not subject to tax rate setting, the calculating means calculates the price of the product and the tax rate obtained by the acquiring means even when the setting of the tax rate is accepted. 3. The product sales data processing device according to claim 1, which calculates a tax amount.
[C4]
display means for displaying information on the product for which the sales data has been processed by the processing means;
When the tax amount is calculated from the price of the product and the tax rate obtained by the acquisition means, and when the tax amount is calculated from the price of the product and the set tax rate, the contents displayed by the display means are changed. a first control means for differentiating
2. The merchandise sales data processing device according to claim 1, further comprising:
[C5]
Issuing means for issuing a receipt recording information of the product for which the sales data has been processed by the processing means;
Information recorded on the receipt for the product for which the tax amount is calculated from the price of the product and the tax rate obtained by the acquisition means, and for the product calculated from the price of the product and the set tax rate a second control means for differentiating
2. The merchandise sales data processing device according to claim 1, further comprising:
[C6]
The computer of the product sales data processing device,
identification means for identifying goods;
Acquisition means for acquiring the tax rate of the tax imposed on the product identified by the identification means, acceptance means for accepting the setting of the tax rate,
When the setting of the tax rate is not accepted, the tax amount is calculated from the price of the product identified by the identification means and the tax rate obtained by the acquisition means, and when the setting of the tax rate is accepted , a calculation means for calculating a tax amount from the price of the product and the set tax rate; and
processing means for processing the sales data of the product, including the tax amount calculated by the computing means;
A control program for functioning as

1 POS terminal 2 scanner 3 terminal body 5 store server 6 identification area 7, 70 first seal 8, 80 second seal 21 imaging device 22 controller 23 Storage device 31 Processor 32 Main memory 33 Auxiliary storage device 34 Clock 35 Input device 36 First display device 37 Second display device 38 Scanner interface 39 Printer , 310...Communication interface, 51...Goods master file, 52...Tax rate table, 61...Bar code symbol, 62...Specific mark, 63...Seal area.

Claims (6)

identification means for receiving a data signal including the first communication data or the second communication data and identifying a product;
acquisition means for acquiring a tax rate to be imposed on the goods identified by the identification means when the second communication data is included in the data signal ;
receiving means for receiving the setting of the tax rate;
When the setting of the tax rate is not accepted, the tax amount is calculated from the price of the product identified by the identification means and the tax rate obtained by the acquisition means, and when the setting of the tax rate is accepted , a calculation means for calculating a tax amount from the price of the product and the set tax rate;
a processing means for processing the sales data of the product, including the tax amount calculated by the computing means;
A merchandise sales data processing device comprising: warning means for warning when the reception means receives the setting of the tax rate when the product identified by the identification means is not subject to the setting of the tax rate;
2. The merchandise sales data processing device according to claim 1, further comprising: If the product identified by the identifying means is not subject to tax rate setting, the calculating means calculates the price of the product and the tax rate obtained by the acquiring means even when the setting of the tax rate is accepted. 3. The product sales data processing device according to claim 1, which calculates a tax amount. display means for displaying information on the product for which the sales data has been processed by the processing means;
When the tax amount is calculated from the price of the product and the tax rate obtained by the acquisition means, and when the tax amount is calculated from the price of the product and the set tax rate, the contents displayed by the display means are changed. a first control means for differentiating
2. The merchandise sales data processing device according to claim 1, further comprising: Issuing means for issuing a receipt recording information of the product for which the sales data has been processed by the processing means;
Information recorded on the receipt for the product for which the tax amount is calculated from the price of the product and the tax rate obtained by the acquisition means, and for the product calculated from the price of the product and the set tax rate a second control means for differentiating
2. The merchandise sales data processing device according to claim 1, further comprising: The computer of the product sales data processing device,
identification means for receiving a data signal including the first communication data or the second communication data and identifying a product;
Acquisition means for acquiring a tax rate to be imposed on the goods identified by the identification means when the data signal includes the second communication data ;
receiving means for receiving the setting of the tax rate;
When the setting of the tax rate is not accepted, the tax amount is calculated from the price of the product identified by the identification means and the tax rate obtained by the acquisition means, and when the setting of the tax rate is accepted , a calculation means for calculating a tax amount from the price of the product and the set tax rate; and
processing means for processing the sales data of the product, including the tax amount calculated by the computing means;
A control program for functioning as

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