JP5114887B2 - POS register - Google Patents

Description

  The present invention relates to a POS register, and more particularly to a POS register that calculates points from the amount of goods purchased by a member customer and adds up the total number of points of the member.

  In a retail store such as a supermarket or a convenience store, a POS (Point of Sales) register that performs processing such as settlement of products purchased by a customer is used. A business model is also widely used in which a customer who is registered as a member is accumulatively awarded points corresponding to the amount of merchandise purchased and given to the member, and the points are exchanged for a specific service. There is also a POS register having such a point management function.

By the way, in the above point grant service, it is necessary to present a predetermined member card in order to indicate to the store side that the customer is a member customer. Therefore, if the member card is forgotten, points cannot be awarded. To solve this problem, if you forget your membership card, press the “ticketing key” at the time of checkout to bar code the number of items purchased at that time, store code, etc., and print the receipt on the receipt. When the received member customer comes to the store next time with a membership card, the barcode is read from the receipt with a scanner, and the points in the scanned barcode are added to the accumulated points stored in the membership card. An apparatus that has been made possible has been proposed (see, for example, Patent Document 1). According to this apparatus, it is possible to correctly reflect the points when the member card is forgotten in the accumulated points.
Japanese Patent No. 3204571

  However, when using the above-mentioned conventional technology, in order to issue a receipt necessary for accumulating points correctly at the next visit to the store, the store clerk has to press the “ticketing key” in the POS register, There is a problem that the operation efficiency of the store clerk is lowered because an extra operation is performed during the checkout of the product. In addition, when the number of keys increases, the probability of work mistakes increases, but if the key is pressed incorrectly, there is a problem that it takes time to recover or the necessary receipts cannot be issued.

  The present invention has been made in view of the above points. The purpose of the present invention is to easily and correctly add the number of points of member customers without requiring any additional operation at the time of settlement even if the member card is forgotten. To provide a POS register capable of

The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 settles the purchased product, calculates a point corresponding to the purchase data, and calculates the calculated point for each member. In the POS register stored and managed in the first storage means, a point addition key, a correction key for return, transaction data including the purchase data of the purchased purchase product, and an identification associated with the transaction data A second storage means for storing a number; a printing means for printing the identification number in a barcode and printing it on a receipt; a first reading means for reading information identifying a member; and a bar on the receipt and second reading means for reading a coded the identification number, before if the operation of the point addition key is made, which was done with read by said first reading means The transaction data corresponding to the identification number read by the second reading means is read from the second storage means, and the point according to the purchase data in the transaction data is the specified member of the first storage means An adding means for adding to the points of the transaction, and the transaction data corresponding to the identification number read by the second reading means when the correction key for returning the goods is operated. And a correction means for performing a return process by reading from the POS register.

In the POS register according to the present invention, at the time of settlement of purchased products, a predetermined identification number is printed as a barcode on a receipt on which the purchase amount is printed, and the receipt is issued. It is stored in the second storage means in association with the transaction data. Then, when the customer who has forgotten the membership card at the time of the above check-in and the customer visits the store again with the receipt issued and the membership card, the barcode identification number is read from the receipt, and the corresponding transaction data is the second The points at the previous settlement calculated from the read transaction data are accumulated and added to the points of the member customers specified by the member card. In this way, transaction data is stored and read when points are added, and points are added, so that the number of points can be correctly added at the next visit without the need to perform special operations on the POS register during checkout. Can do. Moreover, the operation at the time of payment for that purpose becomes simple. Therefore, even if the member card is forgotten, points can be added without burdening the store clerk and the customer. The transaction data is corrected by reading the bar-coded identification number printed on the receipt and reading the corresponding transaction data from the second storage means. In other words, using the identification number printed on the receipt, add points to customers who have forgotten their membership cards, accept exchanges / returns for customers who want to exchange or return products, and correct transaction data for that. The convenience of the store using the POS register is increased.

  According to a second aspect of the present invention, in the POS register according to the first aspect, a predetermined flag is provided for each transaction data in the second storage means, and the addition by the addition means is performed according to the state of the flag. It is characterized by permission.

  In the present invention, execution and prohibition of the point addition process are controlled by using the flag. This makes it impossible to add points for the same transaction again based on the flag, for example, if a flag indicating that the point is added once for one transaction is set. Can do. Therefore, it is possible to prevent a customer who has forgotten the membership card at the time of the checkout of the merchandise and repeatedly adding points again and again due to carelessness of the store clerk or mistakes.

According to a third aspect of the present invention, in the POS register according to the first or second aspect, the point of the specified member of the first storage means is determined according to the return processing by the correction means. Further, subtracting means for subtracting is further provided.

  According to the POS register of the present invention, even if the member card is forgotten, it is possible to easily and correctly add the number of points of the member customer without requiring an extra operation at the time of payment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external view (a front view and a side view) of a POS register 1 according to an embodiment of the present invention, and FIG. 2 is a block diagram showing an electrical configuration of the POS register 1. Is.
As shown in FIGS. 1 and 2, the POS register 1 includes a liquid crystal touch panel (store clerk display) 11, a customer display 14, a key operation unit 15, a receipt issuing port 16, a magnetic card reader 17, and a scanner 18. CPU 20, ROM 21, RAM 22, hard disk device 23, receipt printing unit 24, clock unit 25, and drawer 26.

  The CPU 20 is a central processing unit that controls each part of the POS register 1 and loads and executes a predetermined program from the ROM 21. The ROM 21 is a storage unit that stores various programs executed by the CPU 20. The RAM 22 is a storage unit that temporarily stores data to be called and used by the CPU 20 during operation.

  The hard disk device 23 includes a member file and a purchase log file, which will be described later, a product file in which the product name and sales price of the product are recorded, a performance file in which the number of products sold and the total sales price are recorded for each sales date, Electronic journal data in which all printed contents of receipts issued in the POS register 1 including the transaction number and the handler number for each transaction are recorded, preset files in which various operating parameters of the POS register 1 are defined and stored, etc. It is a storage device for storing each data. A program executed by the CPU 20 may be stored.

  The liquid crystal touch panel 11 displays various menu screens, preset keys necessary for product registration, registered product data / settlement data, other screen keys (keys for calling and correcting transaction details after settlement), etc. This is a display / input device that accepts input from various displayed keys. In addition, this liquid crystal touch panel 11 is installed toward the store clerk side, and is used by the store clerk.

The customer display 14 is a display device that displays to the customer the product name, purchase price, total purchase price, etc. of the purchased product, and is composed of, for example, a liquid crystal panel.
The key operation unit 15 is an input device provided with a function key and a numeric keypad that are frequently used in merchandise registration and checkout processing, as well as a credit key for confirming checkout with a credit card or cash, a current key, and the like. is there.

The magnetic card reader 17 reads out predetermined information from various magnetic cards such as a membership card in which information for specifying a member such as a membership number is recorded, and a credit card used by a customer for payment of purchased products. Device (first reading means).
The scanner 18 is an optical reader (second reading means) that reads a barcode for registering a product attached to a product and reads a barcode printed on a receipt and representing an identification number described later. is there.

The receipt printing unit 24 stores registration / settlement results such as the product name, price, total purchase price, the number of points owned by the customer, date, time, store name, etc., and a barcode representing the identification number. It is a printing device that prints on receipts. The printed receipt is issued from the receipt issuing port 16.
The clock unit 25 has a calendar function, and outputs clock data representing the year, month, day, hour and minute.
The drawer 26 is a safe for storing spare banknotes, coins, other gift certificates and accounts receivable slips.

  FIG. 3 shows an example of a member file stored in the hard disk device 23. The member file (first storage means) is a file for accumulating points for each member (the number of valid points in FIG. 3) corresponding to the purchase amount of the product purchased by the member customer. By consuming points, the member customers who are given points can be used for payment of the next purchase amount or receive special benefits from the store. In FIG. 3, each member file includes columns for a member number, a name, an address, the number of valid points, and a point target total amount for each member. Here, the point target total amount is the total purchase amount of the point grant target product purchased by the member in the past. The number of valid points is the total of individual points of each product calculated by multiplying the product price by a point grant rate (for example, 10%) preset for each point granting product. In the first entry in the example of FIG. 3, the total point target amount of the member with the member number “3333” is 35000 yen, and the number of valid points of this member is 350 points. When a member consumes points, the number of points is subtracted, and the number of points currently held by the member is recorded in the column of effective points.

  FIG. 4 shows an example of a purchase log file stored in the hard disk device 23. The purchase log file (second storage means) is a file that stores transaction data and an identification number associated with the transaction data for each transaction. Here, transaction data includes the total purchase price of the product purchased by the customer (the purchase price of the product when purchasing one product in one transaction, the total price of all of them when purchasing multiple products), Each data includes a point target amount that is a portion of the point grant target product and a date on which the transaction is performed. The identification number associated with the transaction data includes an ID number and a cash register number. The ID number is a 4-digit number that is generated with a serial number every time a transaction is issued in each POS register (for example, if the ID number is “0001” in a certain transaction, the ID number is "0002"), which is a number that does not overlap in one POS register. The cash register number is a two-digit number that distinguishes a POS register allocated in advance to each POS register, and a POS register adjusted by the customer can be specified by this cash register number. The purchase log file also records the product number and the price of the product purchased in each transaction. For example, in the transaction with the ID number “0001” in FIG. 4, the product with the product number “0004” and the product with the product number “0010” are purchased for 2000 yen and 500 yen, respectively.

  In addition to the above, an “addition flag” is stored in the purchase log file. The value “0” is recorded in the addition flag when an entry for the transaction (one line in FIG. 4) is recorded in the purchase log file after one transaction in which the customer settles the product. After that, when the customer takes a procedure (point addition processing described later) for adding the points generated in the transaction at the next visit to his / her own valid point number, the addition flag is updated to the value “1”. That is, the addition flag indicates that if the value is 0, the addition process has not been performed, and if the value is 1, the addition process has been performed.

  FIG. 5 shows an example of printing a receipt issued by the POS register 1 when the product is settled. In FIG. 5A, the receipt includes the name of the store 101 that issued the receipt, the advertisement text 102 for advertising the sale sale period and sale products, the date 103 when the transaction was made, the product name and quantity of the product purchased by the customer, Purchased item details 104 displaying the subtotal amount, etc., settlement data 105 such as the total amount purchased, the amount deposited from the customer, the amount of change, the store manager 106, and the receipt number 107 displayed as a barcode are displayed.

  Here, as shown in FIG. 5B, the receipt number 107 is expressed by a total of 6 digits consisting of the above-mentioned POS register registration number (2 digits) and ID number (4 digits). The Since it is defined in this way, the receipt number can distinguish all transactions at a retail store (including the case where a plurality of POS registers exist), and each transaction data in FIG. 4 (FIG. 4). For one line). That is, when the receipt number is known, the transaction data shown in FIG. 4 can be specified.

Next, the operation of the POS register 1 will be described with reference to the flowchart shown in FIG.
The POS register 1 has as its main functions a registration / settlement function that performs normal registration and settlement of purchased products, and the number of points that were last generated when a member customer who forgot the membership card at the time of product purchase settlement visits the store next time It has three functions: a point addition function for adding, and a transaction correction function for exchanging and returning products once registered and settled. Each will be described in turn below.

(Common processing)
First, common processing other than the above three functions will be described.
When the operation of the POS register 1 is started, the POS register 1 first determines whether or not the operation mode is the registration mode (step S1). The registration mode is a mode for realizing the above three functions, and corresponds to processing after step S3 described later. If the registration mode is not set, the POS register 1 executes various setting processes and maintenance processes as “other processes” (step S2).

  In the registration mode, the POS register 1 displays a registration mode screen (see FIG. 7) on the liquid crystal touch panel 11, and determines whether or not the “point addition key” has been pressed (step S3). When the point addition key is pressed, the point addition function in steps S11 to S17 is executed. If the point addition key has not been pressed, the POS register 1 next determines whether or not the “transaction correction key” has been pressed on the registration mode screen (step S4). When the transaction correction key is pressed, the transaction correction function in steps S18 to S20 is executed. If the transaction correction key is not pressed, the registration / settlement function in steps S5 to S10 is executed.

(Registration and settlement function)
The POS register 1 performs product registration for all products purchased by the customer (step S5). Specifically, the store clerk causes the scanner 18 to read the barcode attached to the purchased product, and for products such as vegetables and fruits without the barcode, the key of each product displayed on the registration mode screen of FIG. Press (touch). The purchase amount of the purchased product specified in this way is read from the product file in the hard disk device 23, and the product registration of each product is performed. When the product registration of all products is completed, the store clerk presses the “subtotal key” on the registration mode screen to complete the product registration.

  Subsequently, the POS register 1 reads the customer's membership card with the magnetic card reader 17, and determines whether the customer is a member or a non-member (step S6). At this time, the member customer who forgot the membership card reports the fact to the store clerk. In this case, the addition of points in step S7 is omitted for the member customer, and the settlement process in step S8 is performed immediately. When the membership card is presented, it is determined that the membership number read by the magnetic card reader 17 matches the membership number recorded in the membership file in the hard disk device 23 (FIG. 3). . If the matching member number does not exist in the member file, it is determined that the member is a non-member, and step S8 is immediately executed in the same manner as the member customer who forgot the member card.

  Next, for the member customer who presented the membership card, the POS register 1 determines the point target amount of the product registered product and the number of points corresponding to the point target amount (calculated from a predetermined point grant rate) as a member. It adds to each column of the point object total amount and the number of effective points of the entry of the member customer in the file (step S7). For example, if a member with a membership number of “3333” has a target price of 10,000 yen for a product purchased this time and the number of points calculated from this amount is 100 points, the member file in FIG. The total amount of points subject to 35,000 yen is 10,000 yen plus 45,000 yen, and the number of valid points is 350 points plus 100 points to 450 points. Thus, for the member who presented the membership card at the time of product registration / settlement, points are added to the membership file at that time.

  Next, the POS register 1 executes a checkout process for the commodity registered (Step S8). Specifically, the store clerk receives the product price from the customer in cash, inputs the amount with the numeric keypad of the key operation unit 15, and further presses the “deposit / cash key” on the registration mode screen. The change amount is calculated from the entered deposit amount and the total purchase amount of the registered product, and is displayed on the liquid crystal touch panel 11 and the customer display 14. It is also possible to pay by credit card instead of cash. In this case, the credit card is read by the magnetic card reader 17, the card information is transmitted to the credit card company using a communication unit (not shown in FIG. 2), and the card settlement is executed according to the credit result.

  When the settlement process is completed, the POS register 1 prints the receipt by the receipt printing unit 24, and issues the printed receipt from the receipt issuing port 16 (step S9). As illustrated in FIG. 5, the store name 101, the advertisement sentence 102, the date 103, the purchased product details 104, the checkout data 105, the responsible person 106, and the receipt number 107 (displayed with a barcode) are printed on this receipt. Yes. Here, the value of the ID number constituting the receipt number is set to a value obtained by adding 1 of the latest ID number recorded in the purchase log file in the hard disk device 23. In addition, the registration number constituting the receipt number is assigned to the POS register 1. For example, if the data in the state of FIG. 4 is currently recorded in the purchase log file (the registration number is “01”), the receipt number of the receipt issued this time is the ID number “0003” and the registration number. From “01” to “010003”. The receipt number “010003” converted into a barcode is printed in the receipt number 107 column of the receipt.

  After the receipt is issued, the POS register 1 records the transaction data relating to the current transaction, that is, the purchase total amount, the point target amount, and the date data and the receipt number of the issued receipt as a new entry in the purchase log file ( Step S10). The receipt number is recorded separately into an ID number and a cash register number. Here, the purchase log file records all transactions regardless of whether the customer is a member or non-member, or whether the customer has presented the membership card or forgot the membership card. Do about. As described above, since transaction data and receipt numbers are recorded for all transactions, it is possible to add points of member customers who have forgotten their membership cards at the time of product purchase when executing a point addition function described later.

As an example of recording in the purchase log file, for example, the data of ID number = 0001, which is the first entry in FIG. 4, is the total purchase amount performed on June 19, 2006 in the POS register 1 of the register number = 01. It is recorded by a transaction of 7,000 yen and a point object amount of 5,000 yen. As described above, the addition flag is set to “0” immediately after recording. If the purchase log file is in the state shown in FIG. 4, that is, the state where the ID number has been recorded up to “0002”, the next recording is performed as the entry with the ID number of “0003”.
In this way, the product registration and checkout process for one customer is completed.

(Point addition function)
The point addition function allows the store clerk to press the point addition key on the registration mode screen of the POS register 1 when the customer who has forgotten the member card at the time of purchase of the product brings the receipt and the member card and returns to the store. Execution is started. When the store clerk presses the point addition key, the POS register 1 switches the display on the liquid crystal touch panel 11 to the member number input screen, and when the store clerk presses the “member number key” on this member number input screen, the POS register 1 becomes a member. The card is waiting to be read. Then, the POS register 1 reads the customer's member card with the magnetic card reader 17 (step S11), and if it is determined that the member is a member by the read member number, the display on the liquid crystal touch panel 11 is displayed on the point addition screen of FIG. Switch to.

  Subsequently, the POS register 1 reads the barcode (receipt number 107) of the previously issued receipt brought by the member by the scanner 18 (step S12). Then, the data corresponding to the ID number and the register number indicated by the read receipt number (hereinafter referred to as addition target data) is searched from the purchase log file in the hard disk device 23, and the addition flag of the searched addition target data is “ It is determined whether or not 0 ″ (step S13). As described above, if the addition flag is “0”, point addition processing has not been performed, so the POS register 1 continues processing. If “1”, point addition processing has already been performed. Cancel processing. Therefore, after the processing after step S14 described below is performed once and the addition flag is set to “1”, the points are not added redundantly by performing step S14 and subsequent steps again. It is like that.

  When the addition flag is 0, the POS register 1 reads the point target amount of the addition target data from the purchase log file (step S14), and is given to the member from the point target amount using a predetermined point grant rate or the like. The number of power points is calculated (step S15). Further, the POS register 1 displays the read point object amount and the calculated number of points in the “object amount” and “point” columns of the point addition screen of FIG. Further, the total purchase amount of the data to be added is also read from the purchase log file and displayed in the “tax included purchase amount” column on the point addition screen.

  For example, if the receipt number read in step S12 is “010002”, the second entry from the top in the purchase log file of FIG. Then, assuming that the number of points is calculated as, for example, 100 points from the point target amount “10,000 yen” of the addition target data, as illustrated in FIG. 8, each column of the target amount, points, and tax-included purchase amount includes: They are displayed as 10,000 yen, 100 points, and 15,000 yen, respectively.

  Next, the POS register 1 searches the member file in the hard disk device 23 for data corresponding to the member number read from the member card in step S11, and finds the point object total amount and the number of valid points of the searched member. The “cumulative purchase amount” and “cumulative point” fields are displayed on the point addition screen of FIG. For example, when the member number is “3333”, the “total purchase amount” is 35,000 yen and the cumulative points are 350 points on the point addition screen as illustrated in FIG.

  When the clerk presses the “execution key” displayed on the point addition screen, the POS register 1 adds the value of the “point” field to the value of the “cumulative point” field, and the “cumulative purchase amount” field. Add the value in the “Target amount” column to the value of the value, and add the value of “cumulative points” and the value of “cumulative purchase amount” after the addition as the number of valid points and total points subject to points searched above. Recording is performed (step S16). As a result, the member file data (the number of valid points and the point target total amount) is updated to the member customer who forgot the member card at the time of purchase of the product, and points are correctly given.

  For example, in the example of the point addition screen shown in FIG. 8, the number of effective points after the addition is 450 points (= 350 points + 100 points), and the total amount of points targeted is 45,000 yen (= 35,000 yen + 10,000 yen). These numerical values are recorded as data corresponding to the member number “3333” of the member file.

  Thereafter, the POS register 1 sets the addition flag of the addition target data to “1” in the purchase log file (step S17). With this setting, points can no longer be added again using the same receipt.

(Transaction correction function)
The transaction correction function is started when the store clerk presses the transaction correction key on the registration mode screen of the POS register 1. For example, a customer (whether a member or a non-member) who wants to return an item after payment reports to the store clerk that he wants to return the item with the item to be returned and a receipt issued at the time of payment. When the clerk presses the transaction correction key, the POS register 1 is in a state of waiting for receipt receipt.

  Then, the POS register 1 reads the receipt number 107 printed on the bar code of the receipt presented by the customer (issued when the desired product to be returned is purchased) with the scanner 18 (step S18). Data corresponding to the indicated ID number and cash register number (hereinafter referred to as correction target data) is searched from the purchase log file in the hard disk device 23. Next, the POS register 1 reads the correction target data from the purchase log file (step S19) and displays it on the liquid crystal touch panel 11 and the customer display 14. Here, since the product number and the price of the purchased product are recorded in the purchase log file as described with reference to FIG. 4, the correction process can be performed by reading them out. At this time, electronic journal data in which more detailed transaction contents are recorded from the hard disk device 23 (all printed contents of the receipt issued by the POS register 1 including the transaction number and the handler number for each transaction are recorded). May be read and displayed.

Thereafter, the POS register 1 accepts the contents of correction desired by the customer and executes the process (step S20). For example, a store clerk inputs correction contents such as returned goods and exchanges using various keys of the key operation unit 15, and the POS register 1 reflects the input contents in the purchase log file, electronic journal data, and result file, and updates each file. To do.
Thus, the transaction data recorded in the POS register 1 is corrected by using the receipt number printed on the receipt.

As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to
For example, a computer such as a store controller is connected to the POS register 1, each file such as a member file and a purchase log file is stored and managed in the store controller, and the POS register 1 obtains these files by downloading from the store controller. You may make it use it. Further, a plurality of POS registers may be introduced, and one of the POS registers may have a function as a store controller. Further, the present invention can also be applied to equipment having a weighing function.

  In the above embodiment, the receipt number composed of the ID number and the cash register number is used as the identification number printed on the receipt. However, other information can be used as long as the receipt, that is, one transaction can be specified. For example, the transaction time may be the identification number. The barcode format is not particularly limited, and may be a two-dimensional barcode.

  In addition, the data format of the receipt number is not limited to that illustrated in FIG. 5, and other formats and numbers can be appropriately employed.

  In addition, the point addition function is executed when the “point addition key” is pressed in step S3. However, information indicating the point is recorded in the barcode printed on the receipt, and the barcode is displayed. The point addition function may be automatically executed when read. Similarly, in step S4, the transaction correction function may be automatically executed when the barcode printed on the receipt is read.

Further, the number of valid points of the member customer may be recorded on the member card instead of the member file.
In addition, as a method for calculating the points, instead of calculating from the point target amount, the granted points may be determined in advance for each product.
In addition, when a customer who has been identified as a member returns or exchanges a product, the number of valid points and the total amount subject to points can be subtracted accordingly (similar to the point addition function).
Alternatively, the number of points may be calculated from the price of each purchased product stored in the purchase log file, and all of them may be summed to calculate the number of valid points. Alternatively, the number of points of each purchased product may be stored in the purchase log file, and the total number of points stored may be summed to calculate the number of valid points.

It is an external view of a POS register according to an embodiment of the present invention. It is a block diagram showing the electric constitution of a POS register. It is an example of a member file. It is an example of a purchase log file. It is an example of the printing of the receipt which a POS register issues. It is a flowchart which shows operation | movement of a POS register. It is an example of the registration mode screen displayed on a POS register. It is an example of the point addition screen displayed on a POS register.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... POS register 11 ... Liquid crystal touch panel (display for shop assistant) 14 ... Display for customer 15 ... Key operation part 16 ... Receipt issue port 17 ... Magnetic card reader 18 ... Scanner 20 ... CPU 21 ... ROM 22 ... RAM 23 ... Hard disk Device 24 ... Receipt printing unit 25 ... Clock unit 26 ... Drawer

Claims (3)

In the POS register that settles the purchased product and calculates the point according to the purchased data, and stores and manages the calculated point in the first storage means for each member,
Point addition key and correction key for return,
Second storage means for storing transaction data including the purchase data of the purchased purchase product and an identification number associated with the transaction data;
Printing means for printing the identification number into a barcode and printing it on a receipt;
First reading means for reading information identifying a member;
Second reading means for reading the barcode-coded identification number on the receipt;
When the point addition key is operated, the transaction data corresponding to the identification number read by the second reading unit, which is read together with the reading by the first reading unit, is read from the second storage unit. Adding means for adding the point corresponding to the purchase data in the transaction data to the point of the identified member of the first storage means;
Correction means for reading out the transaction data corresponding to the identification number read by the second reading means from the second storage means and performing return processing when the correction key for the return is operated When,
A POS register comprising: 2. The POS register according to claim 1, wherein a predetermined flag is provided for each of the transaction data in the second storage unit, and addition by the adding unit is permitted according to a state of the flag. 3. The POS register according to claim 1, further comprising a subtracting unit that subtracts the specified member's points in the first storage unit in response to a return process by the correcting unit. .

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