JP3748190B2 - Electronic cash register - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic cash register that operates alone or as a product registration terminal of a POS (Point Of Sales) system, so-called a POS terminal, and in particular, prints receipts using receipt paper. It relates to those with functions.
[0002]
[Prior art]
The electronic cash register that operates as a single unit or as a POS terminal has a function for issuing a receipt by printing the name, price, total transaction amount, etc. of a product processed as a transaction on a receipt sheet using a receipt printer. In addition, the receipt printer has been developed and put into practical use, which has a function of printing a receipt, a recipient signature column, an issuer column, a date column, and the like on the receipt sheet to issue a receipt.
[0003]
In the conventional electronic cash register of this type, when a closing key is input after a product to be processed for sale is registered, a receipt printer is driven to print and issue a receipt relating to the transaction, and then a receipt is received. When the key is entered, the receipt printer is driven again, and only one receipt (the details of the purchased product are not printed) is printed and issued, in which the total amount of the transaction is recorded in the amount column.
In addition, when the receipt key is entered after the amount data is entered, it is also possible to drive the receipt printer to print and issue a receipt in which the amount entered is recorded in the amount column. .
[0004]
So, for example, at a restaurant, after processing sales data for all products purchased (drinked) by a group customer as one transaction, the customer receives a request to pay individually and requests a receipt instead of a receipt. In the case of receiving, first, an individual payment amount is calculated for each customer. Next, enter the payment amount for each person and press the receipt key to issue a receipt with the payment amount printed in the amount column. By repeating this work for the number of customers in the group, the store side dealt with it.
[0005]
[Problems to be solved by the invention]
However, in a conventional electronic cash register having a receipt issuing function, a receipt with the entered amount data printed in the amount column was issued unconditionally, so for transactions processed as one transaction It was possible to issue a receipt with an amount greater than the transaction amount. For this reason, it was not possible to prevent issuing a receipt with an amount larger than the transaction amount. In addition, since any number of receipts for the entered monetary amount data can be issued at any time, it is possible to prevent the total amount of multiple receipts issued for one transaction from exceeding the transaction amount. could not.
[0006]
By the way, as one of the individual payment methods for group customers, there is a so-called split-account method in which Meimei pays out money equally. There was also the trouble of having to repeat the work of pressing the receipt key for the number of people.
[0007]
  The present invention has been made based on such circumstances.EyesThe target is that the total amount of one or more receipts issued for a transaction exceeds the transaction amount.Can preventIt is intended to provide an electronic cash register with a receipt issuing function.The
[0008]
[Means for Solving the Problems]
The present invention provides an amount field, a recipient signature field, an issuer field, a date field, etc., and prints the transaction amount in the amount field when a receipt is issued after registration of a product to be processed as a transaction is completed. In an electronic cash register having a receipt issuance function for issuing a receipt using a receipt sheet, the invention according to claim 1 is configured such that when the first amount data is input when the receipt is issued, It is determined whether or not the first amount data is less than or equal to the transaction amount. If the amount is less than or equal to the transaction amount, a receipt is printed by printing the first amount data in the amount column and the first amount data is stored. When the second amount data is continuously input, it is determined whether or not the sum of the second amount data and the first amount data is less than or equal to the transaction amount. The amount column Issue a receipt which is formed by printing, if it exceeds the transaction amount is what you do not issue a receipt.
If it is invention of Claim 1 of such a structure, the receipt exceeding the amount of the transaction will not be issued for one transaction.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
This embodiment is a case where the inventions of claims 1 and 2 are applied to a single electronic cash register for restaurants.
[0011]
FIG. 1 is a perspective view showing an external appearance of an electronic cash register according to the present embodiment, and reference numeral 1 in the drawing denotes a cash register body. The cash register body 1 controls the opening and closing of a drawer 7 for storing cash or the like.
[0012]
The cash register body 1 is provided with a keyboard 2 and an operator display 3 on the front, and a customer display 4 on the back. Further, a printer 5 for printing on receipt paper is built in, and the receipt paper printed by the printer 5 is discharged from a receipt issuing port 6 formed on the front face of the cash register main body 1.
[0013]
The keyboard 2 includes a product keyboard 2a in which product codes of various products (food and drink menu items) are assigned to keys arranged in a matrix, a numeric key for inputting numeric data, and clearing of numeric data. There are various keys such as a clear key that commands the cancellation of the error status, a multiplication key that commands that the numerical data is a multiplier, a closing key that declares the end of product registration for a transaction, and a price key that commands the input of money data The function keyboard 2b is provided.
[0014]
The keyboard 2 is provided with a mode switch 8 for selecting various business modes such as “registration”, “inspection”, “settlement”, and “setting”. Incidentally, “registration” means that sales data of each product registered by the key input of the product keyboard 2a is processed in the storage unit, and the end of the product registration of one transaction is declared by the key input of the closing key. And a transaction mode in which a payment such as cash payment is processed as a closing process, and a receipt on which the detailed data, total data, etc. of the product processed in the transaction is printed is issued from the printer 5. “Inspection” is a mode in which sales data for each product processed in the storage unit is aggregated and output as a report. “Checkout” is the sales data for each product processed in the storage unit. Is a job mode in which the storage unit is cleared after totaling and outputting a report. “Setting” is a job mode in which data necessary for executing various jobs is set in the storage unit in advance.
[0015]
FIG. 2 is a block diagram showing a control circuit configuration of the electronic cash register. A CPU (Central Processing Unit) 11 is mounted as a control unit body. Further, a ROM (Read Only Memory) 12 storing fixed data such as program data and character generator data for printing / displaying characters, and a RAM in which various memory areas such as a storage unit for processing sales data of each product are formed. (Random Access Memory) 13, clock unit 14 for measuring the current date and time, I / O for inputting a signal from the mode switch 8 and outputting an opening command signal to a drawer opening device 7a for automatically opening the drawer 7 O port 15, keyboard controller 16 that captures a key signal corresponding to an operation key from the keyboard 2, display controller 17 that controls driving of the operator display 3 and customer display 4 to display characters, the printer Equipped with a printer controller 18 that controls the drive of 5 and performs receipt printing etc. That.
The CPU 11 is connected to the ROM 12, RAM 13, clock unit 14, I / O port 15 and controllers 16 to 18 through a bus line 19 such as an address bus or a data bus.
[0016]
The electronic cash register having such a configuration, in particular, has the function of printing a receipt paper by printing the name, price, total transaction amount, etc. of a product processed as one transaction on a receipt sheet by the printer 5. It has a function to issue a receipt by printing an amount field, a recipient signature field, an issuer field, a date field, etc. on a receipt sheet.
[0017]
That is, as shown in FIG. 3, in addition to the numeric key 31, the clear key 32, the multiplication key 33, the deposit / cash key 34 as a closing key, the amount key 35, etc., a receipt is issued on the function keyboard 2b. A receipt key 36 is provided for instructing. Further, there is also provided a split key 37 for instructing the issuance of a discount receipt that is issued when a group customer pays with a split account.
[0018]
Further, as shown in FIG. 4, the transaction amount memory 41 that stores the total amount of one transaction in the RAM 13, the flag memory 42 of the closing flag f that is set in response to the end of the closing processing of the transaction, and the numeric key 31 A numerical value register memory 43 for temporarily storing numerical data to be input, a receipt number memory 44 for storing a receipt number X to be printed on the receipt, a receipt number memory 45 for storing the number A of receipts issued in a transaction, and repetition Repeat number memory 46 for storing the number of times R, an issued number memory 47 for storing the number C of receipts issued in a transaction, an issued amount memory 48 for storing the total amount of receipts issued in a transaction, and a continuous from 1 A receipt control table memory 49 for storing the receipt number and the receipt amount in the order of the numbers to be formed is formed.
[0019]
Thus, when the receipt key 36 is input in a state where the “registration” mode is selected by the mode switch 8, the program is configured so that the CPU 11 executes the receipt key input process shown in the flowchart of FIG. 5. .
That is, when detecting the input of the receipt key 36, the CPU 11 determines whether or not the tightening flag f is set in the flag memory 42 as ST (step) 1. Here, when the closing flag f is not set, the receipt key 36 is input in a state where the closing process of one transaction has not been completed, so the input of the receipt key 36 is ignored.
[0020]
If the closing flag f is set in ST1, the receipt key 36 is input after the closing process of one transaction is completed, so it is recognized that the receipt is issued for the transaction, and the receipt is received as ST2. The receipt number area and receipt amount area of the control table memory 49 are cleared. The register register memory 43 is also cleared.
[0021]
Next, it waits for key input as ST3. Here, when the numeric key 31 is input (YES in ST4), the numerical data (hereinafter referred to as numeric data) with the numeric input is sequentially set in the numeric register memory 43. Then, the process returns to ST3 and waits for the next key input.
[0022]
When the receipt key 36 is input in the key input standby state of ST3 (YES in ST7), the transaction receipt issuing process specifically shown in FIG. 6 is started.
First, an initial value “1” is set in the receipt number memory 45 as ST11. In ST12, the data (receipt number) X in the receipt number memory 44 is updated to data increased by 1.
[0023]
Next, as ST13, it is determined whether or not the number data is stored in the number register memory 43. If not stored, the data of the receipt number memory 44 is stored in the receipt number area at the head of the receipt control table memory 49 as ST14, and the data stored in the transaction amount memory 41 is stored in the corresponding receipt amount area. (Total amount of the transaction) is stored. Thereafter, the process proceeds to ST17.
[0024]
On the other hand, if the numerical value data is stored, it is determined whether or not the numerical value data is larger than the transaction amount data stored in the transaction amount memory 41 as ST15. If the numeric data is larger than the transaction amount data, a message indicating an input error of the amount is displayed on the operator display 3 and the transaction receipt issuing process is terminated.
[0025]
If the numeric data is less than or equal to the transaction amount data stored in the transaction amount memory 41 in ST15, the data of the receipt number memory 44 is stored in the receipt number area at the top of the receipt control table memory 49, and correspondingly. The number data is stored in the receipt amount area, and the number register memory 43 is cleared. Thereafter, the process proceeds to ST17.
[0026]
In ST17, print data of a receipt is generated with the receipt number area data in the receipt control table memory 49 as the receipt number and the corresponding receipt amount area data in the receipt control table memory 49 as the transaction amount. Then, this print data is sent to the printer 5 via the printer controller 18 to control the issuance of the receipt using the receipt paper.
If the receipt is normally printed and issued in this way, the closing flag f in the flag memory 42 is reset in ST18, and the transaction receipt issuing process is terminated.
[0027]
Returning to the description of the receipt key input process shown in FIG.
When the split key 37 is input in the key input standby state of ST3 (YES in ST5), it is determined whether or not the number data is stored in the number register memory 43. If it is not stored, the process returns to ST3 and waits for the next key input.
[0028]
When the numerical value data is stored in the numerical value register memory 43, the number of persons to be divided is input as a numerical value, and therefore, the discount payment receipt issuing process specifically shown in FIG. 7 is started.
First, in ST21, the register data of the register register memory 43 is set in the receipt number memory 45, and the register register memory 43 is cleared. Next, the data of the receipt number memory 45 is set in the repetition number memory 46 as ST22. Also, as ST23, the data in the transaction amount memory 41 is divided by the data in the receipt number memory 45 to calculate the discount amount data, and temporarily stored in the work memory (not shown). At this time, if it is not divisible, the amount after rounding off the decimal point is used as the discount amount data.
[0029]
Next, if the data (receipt number) X in the receipt number memory 44 is updated to data incremented by 1 in ST24, the data in the receipt number memory 44 is stored in the top receipt number area of the receipt control table memory 49 in ST25. Then, the discount amount data is stored in the receipt amount area corresponding thereto.
[0030]
After that, if the data in the repetition count memory 46 is updated to data reduced by 1 in ST26, it is determined in ST27 whether the data in the repetition count memory 46 is “0”. If it is not “0”, the process returns to ST24, and after the data X in the receipt number memory 44 is again updated to data incremented by 1, the receipt number memory 44 stores the next receipt number area in the receipt control table memory 49. Data is stored, and the discount amount data is stored in the corresponding receipt amount area. Then, the data in the repetition count memory 46 is updated again with data reduced by one.
[0031]
In this way, the processing of ST24 to ST26 is repeated until the data in the repetition count memory 46 becomes “0”.
If it is confirmed in ST27 that the data in the repetition count memory 46 has become "0", then the discount amount correction process is executed in ST28. In this process, the sum of the discount amount stored in the receipt amount area of the receipt control table memory 49 is compared with the transaction amount stored in the transaction amount memory 41. If they are equal, there is no need for correction, so this process is terminated. On the other hand, if they are not equal, the difference is allocated and added one by one to the discount amount stored in the receipt amount area for correction.
[0032]
In this way, when the processing for correcting the discount amount is completed, the corrected discount amount is displayed on the operator display 3 and the customer display 4, and the next key input is awaited. Here, when the input of the clear key 32 is detected (NO in ST29) instead of the receipt key 36 (NO in ST29), the discount receipt issuing process is terminated without issuing the split receipt.
[0033]
On the other hand, when the receipt key 36 is input (YES in ST29), the issue of the split receipt is controlled. First, in ST31, the data C in the issued number memory 47 is initialized to “0”. Next, if the data C in the issued number memory 47 is updated to data incremented by 1 in ST32, the data in the receipt number area C (data in the issued number memory 47) in the receipt control table is changed to the receipt number in ST33. And receipt print data with the transaction amount as the data in the receipt amount area of the receipt control table memory 49 corresponding thereto is generated. Then, this print data is sent to the printer 5 via the printer controller 18 to control the issuance of the receipt using the receipt paper.
[0034]
Each time a receipt is issued, the data C in the issued number memory 47 and the data A in the received number memory 45 are compared in ST34, and whether the data C in the issued number memory 47 exceeds the data A in the received number memory 45 or not. Determine whether. If the data C in the issued number memory 47 does not exceed the data A in the receipt number memory 45, the process returns to ST32 and repeats the processes in ST32 and 33. That is, in the order of the number in the receipt control table, issuance of receipts with the receipt number area data as the receipt number and the corresponding receipt amount area data in the receipt control table memory 49 as the transaction amount is controlled.
If it is confirmed in ST34 that the data C in the issued number memory 47 exceeds the data A in the received number memory 45, the closing flag f in the flag memory 42 is reset in ST35, and the split receipt issuing process is terminated. .
[0035]
Returning to the description of the receipt key input process shown in FIG.
When the money amount key 37 is input in the key input standby state of ST3 (YES in ST5), it is determined whether or not the numerical data is stored in the numerical register memory 43. If it is not stored, the process returns to ST3 and waits for the next key input.
[0036]
When the register data is stored in the register register memory 43, since the receipt of the first receipt of the group customer who makes the individual payment is input, the individual receipt issuing process specifically shown in FIG. Start.
First, in ST41, the data A in the receipt number memory 45 and the data M in the issue amount memory 48 are each initialized to “0”. Next, in ST42, the data M in the issued amount memory 48 is updated to a value obtained by adding the number data in the number register memory 43. Next, in ST43, it is determined whether or not the data M in the issue amount memory 48 after the addition update is larger than the transaction amount data stored in the transaction amount memory 41. Here, if the data M in the issue amount memory 48 is larger than the transaction amount data, the amount exceeding the transaction amount is an incorrect input entered as a receipt amount, so a message indicating an amount input error is displayed on the operator display 3. The individual receipt issuance process is terminated.
[0037]
If it is confirmed in ST43 that the data M in the issue amount memory 48 is equal to or less than the transaction amount data, the data (receipt number) X in the receipt number memory 44 is updated to data increased by 1 as ST44, and then ST45. The receipt number memory 44 data is stored in the top receipt number area of the receipt control table memory 49, and the number register data in the number register memory 43 is stored in the corresponding receipt amount area. In addition, the receipt number and the receipt amount stored in the receipt control table memory 49 are displayed on the operator display 43 and the customer display 4.
[0038]
Next, in ST46, the data A in the receipt number memory 45 is updated to a value increased by one. In step ST47, the numeric register memory 43 is cleared. After that, it waits for the next key input. Here, when the input of the numeric key 31 is detected instead of the receipt key 36 (NO in ST48) (YES in ST49), the numeric data is sequentially set in the numeric register memory 43 as ST50. Then, it waits for the next key input. If the clear key 32 is input (YES in ST51), the process returns to ST47, clears the register register memory 43, and waits for the next key input.
[0039]
On the other hand, when the amount key 35 is input instead of the clear key 32 (YES in ST52), the process returns to ST42. Then, the data M in the issue amount memory 48 is updated to a value obtained by adding the number data in the number register memory 43. At this time, it is determined whether or not the data M in the issued amount memory 48 after the addition update exceeds the transaction amount data stored in the transaction amount memory 41. If it exceeds, a message indicating an input error of the amount is displayed. This is displayed on the operator display 3 and the individual receipt issuance process is terminated.
[0040]
If it is confirmed that the data M in the issue amount memory 48 is less than or equal to the transaction amount data, the data X in the receipt number memory 44 is updated to data increased by 1, and then the next receipt number in the receipt control table memory 49 is updated. The data of the receipt number memory 44 is stored in the area, and the number data of the number register memory 43 is stored in the corresponding receipt amount area.
Thereafter, the data A in the receipt number memory 45 is updated to a value increased by 1, and when the register register memory 43 is cleared, the next key input is waited.
[0041]
When the input of the receipt key 36 is detected in this key input standby state (YES in ST48), the issue of the individual receipt is controlled. First, in ST53, the data C in the issued number memory 47 is initialized to “0”. Next, when the data C in the issued number memory 47 is updated to 1 increased in ST54, the data in the receipt number area C (data in the issued number memory 47) in the receipt control table is changed to the receipt number in ST55. And receipt print data with the transaction amount as the data in the receipt amount area of the receipt control table memory 49 corresponding thereto is generated. Then, this print data is sent to the printer 5 via the printer controller 18 to control the issuance of the receipt using the receipt paper.
[0042]
Each time a receipt is issued, data C in the issued number memory 47 and data A in the received number memory 45 are compared in ST56, and whether or not the data C in the issued number memory 47 exceeds the data A in the received number memory 45. Determine whether. If the data C in the issued number memory 47 does not exceed the data A in the receipt number memory 45, the process returns to ST54 and repeats the processes of ST54 and 55. That is, in the order of the number in the receipt control table, issuance of receipts with the receipt number area data as the receipt number and the corresponding receipt amount area data in the receipt control table memory 49 as the transaction amount is controlled.
If it is confirmed in ST56 that the data C in the issued number memory 47 exceeds the data A in the received number memory 45, the fastening flag f in the flag memory 42 is reset in ST57 and the individual receipt issuing process is terminated. .
[0043]
In the electronic cash register of the present embodiment configured as described above, a product to be processed for sales as one transaction is registered by a key input of the product keyboard 2a, and then a deposit / cash key 34 as a closing key. Is entered and receipt issuance is performed, and then the receipt key is issued by inputting the receipt key 36, the money amount column, the recipient signature column, the issuer column, the date column, etc. are provided. A receipt is printed out using receipt paper.
[0044]
In this case, in addition to the normal transaction receipt that prints the total amount of one transaction in the amount column, when the group customer pays with a split account, the receipt is printed in the amount column, It is possible to issue individual receipts for each group customer, with individual payments printed in the amount column when paid individually.
[0045]
For example, suppose that at a restaurant where the electronic cash register of this embodiment is operating, four group customers eat a total of 20000 yen, and each person pays 5000 yen each and pays by split payment. At this time, if each person asks for a receipt, the store clerk operating the electronic cash register first presses the receipt key 36 (p1) as shown in FIG. Then, after inputting the number of people “4” who made the split with the numeric key 31 (p2), the split key 37 is pressed (p3). Then, the discount receipt issuing process shown in FIG. 7 is executed.
[0046]
First, data “4” is stored in the receipt number memory 45 and the repetition number memory 46. Further, since “20000” is stored in the transaction amount memory 41, “5000 (= 20000 ÷ 4)” is calculated as the discount amount. As a result, the first area of the receipt control table 49 stores the latest receipt number (here, “0013”) and the discount amount “5000”, and the second area is the next receipt number “0014”. The amount “5000” is stored, the next receipt number “0015” and the discount amount “5000” are stored in the third area, and the next receipt number “0016” and the discount amount “5000” are stored in the fourth area. Is done.
[0047]
At this time, since the data R in the repetition count memory 46 becomes “0”, the discount amount 5000 yen is displayed on the operator display 3 and the customer display 4. Therefore, if the sales clerk confirms that the discount amount is correct, he presses the receipt key 36 again (p4 in FIG. 9). Then, the printer 5 is driven, and as shown in FIG. 10, four receipts 50A, 50B, 50C from receipt numbers “0013” to “0016”, each of which has a discount amount of 5000 yen printed as a receipt amount in the amount column 51, respectively. , 50D is automatically issued. The receipts 50 </ b> A to 50 </ b> D are formed with a recipient signature column 52, an issuer column 53, and a date column 54 in addition to the amount column 51.
The store clerk may give these four receipts 50A to 50D to four of the group customers.
[0048]
As described above, according to this embodiment, as long as the number of people who perform split payment is entered at the time of receipt issuance order, a receipt with the amount printed in the amount column can be obtained for the number of people. There is an advantage that an individual receipt for paying group customers can be obtained with a simple operation.
[0049]
For example, four group customers eat a total of 30,000 yen, one of them pays 10,000 yen, another pays 8000 yen, another one pays 7000 yen, and the remaining 1 Suppose that a person paid 5000 yen. At this time, if a receipt is requested from each person, as shown in FIG. 11, the store clerk first presses the receipt key 36 (q1), and then uses the numeric key 31 to set the first payment amount “10000”. After inputting a number (q2), the money amount key 35 is pressed (q3). Then, the individual receipt issuing process shown in FIG. 8 is executed.
[0050]
First, data “10000” is stored in the issue amount memory 48. At this time, since the data M in the issue amount memory 48 is equal to or less than the data “30000” in the transaction amount memory 41, the latest receipt number (here, “0017”) and the receipt amount “10000” are stored in the first area of the receipt control table 49. Is stored. The receipt number “0017” and the receipt amount “10000” are displayed on the operator display 3 and the customer display 4.
[0051]
The store clerk then inputs the second payment amount “8000” using the numeric key 31 (q4 in FIG. 11), and then presses the monetary key 35 (q5). Then, the data M in the issue amount memory 48 is updated to “18000”. At this time, since the data M in the issue amount memory 48 is equal to or less than the data “30000” in the transaction amount memory 41, the next receipt number “0018” and the receipt amount “8000” are stored in the second area of the receipt control table 49. . Further, the receipt number “0018” and the receipt amount “8000” are displayed on the operator display 3 and the customer display 4.
[0052]
Then, the store clerk inputs the third payment amount “7000” with the numeric key 31 (q6 in FIG. 11), and then presses the monetary key 35 (q7). Then, the data M in the issue amount memory 48 is updated to “25000”. At this time, since the data M in the issue amount memory 48 is equal to or less than the data “30000” in the transaction amount memory 41, the next receipt number “0019” and the receipt amount “7000” are stored in the third area of the receipt control table 49. . Further, the receipt number “0019” and the receipt amount “7000” are displayed on the operator display 3 and the customer display 4.
[0053]
Then, the store clerk inputs the fourth payment amount “5000” with the numeric key 31 (q8 in FIG. 11), and then presses the monetary key 35 (q9). Then, the data M in the issue amount memory 48 is updated to “30000”. At this time, since the data M in the issue amount memory 48 is equal to or less than the data “30000” in the transaction amount memory 41, the next receipt number “0020” and the receipt amount “5000” are stored in the fourth area of the receipt control table 49. . The receipt number “0020” and the receipt amount “5000” are displayed on the operator display 3 and the customer display 4.
[0054]
Therefore, if the store clerk confirms that the four receipt amounts are correct, he presses the receipt key 36 again (q10 in FIG. 11). Then, the printer is driven, and as shown in FIG. 12, the receipt 50E of the receipt number “0017” in which the receipt amount 10000 yen is printed in the amount column 51 and the receipt number “0018” in which the receipt amount 8000 yen is printed in the amount column 51. "Receipt 50F", a receipt 50G with a receipt number "0019" with a receipt amount 7000 yen printed in the amount column 51, and a receipt 50H with a receipt number "0020" with a receipt amount 5000 yen printed in the amount column 51 Issued to. In addition, in the receipts 50E to 50H, in addition to the amount column 51, a recipient signature column 52, an issuer column 53, and a date column 54 are formed.
The store clerk may give these four receipts 50E to 50H to four of the group customers.
[0055]
In this case, for example, when the store clerk inputs the amount of payment of 5000 yen for the fourth person, if the amount of money of 5001 yen or more is entered by mistake, the data M in the issue amount memory 48 is stored in the transaction amount memory 41. Since the data exceeds “30000”, an error occurs and a receipt is not issued.
[0056]
Similarly, after inputting the payment amount of the fourth person in the above example, if an additional amount of payment is entered even for 1 yen, an error occurs because the data M in the issue amount memory 48 exceeds the data “30000” in the transaction amount memory 41. Become.
[0057]
Also, in the present embodiment, for example, for a transaction of 10,000 yen, the receipt key 36 is pressed to declare the receipt issuance. Subsequently, after inputting the amount of 10001 yen or more, the receipt key 36 is pressed. Even so, a receipt is not issued because the amount of the deposit exceeds the transaction amount.
[0058]
Thus, according to this embodiment, not only when issuing a single transaction receipt for one transaction, but also when issuing individual receipts individually for group customers, Since the receipt exceeding the amount is not issued, there is also an advantage that it is possible to surely prevent the receipt exceeding the transaction amount from being illegally issued.
[0059]
In the above embodiment, in the individual receipt issuing process shown in FIG. 8, when the receipt key is input in ST48, the process proceeds to ST53, where the data in the issued number memory 47 is initialized to “0”. Then, the difference between the transaction amount data in the transaction amount memory 41 and the data M in the issue amount memory 48 is obtained. If there is no difference (= 0), the process proceeds to ST53. If there is a difference, the data in the receipt number memory 44 is updated by +1, and the updated data and the difference are set in the receipt control table 49. Further, after the data in the receipt number memory 45 is updated by 1, the process proceeds to ST53. In this way, the program may be changed. By doing so, it is possible to save the trouble of inputting the final payment amount (receipt amount) of one person.
[0060]
【The invention's effect】
  As detailed above,The present inventionAccording to, the total amount of one or more receipts issued for one transaction exceeds the amount of the transactionCan preventAn electronic cash register with a receipt issuing function can be provided.The
[Brief description of the drawings]
FIG. 1 is a perspective view showing an external configuration of an electronic cash register according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a main configuration of the electronic cash register.
FIG. 3 is a plan view showing main keys arranged on the keyboard of the electronic cash register.
FIG. 4 is a view showing main memory areas formed in the RAM of the electronic cash register.
FIG. 5 is a flowchart showing a main part of a receipt key input process executed by the CPU of the electronic cash register.
FIG. 6 is a flowchart specifically showing the transaction receipt issuing process of FIG. 5;
FIG. 7 is a flowchart specifically showing the discount receipt issuing process of FIG. 5;
FIG. 8 is a flowchart specifically showing an individual receipt issuing process of FIG. 5;
FIG. 9 is a diagram showing an example of a key operation procedure when issuing a percent receipt.
FIG. 10 is a view showing an example of issuance of a discount account receipt.
FIG. 11 is a diagram showing an example of a key operation procedure when an individual receipt is issued.
FIG. 12 is a diagram showing an example of issuing an individual receipt.
[Explanation of symbols]
1 ... Cash register body
2 ... Keyboard
3. Display for operator
4 ... Customer display
5 ... Printer
11 ... CPU
12 ... ROM
13 ... RAM
35 ... Amount key
36 ... Receipt key
37. Split key
41 ... Transaction amount memory
48 ... Issue amount memory
49 ... Receipt control table

Claims (1)

It has a receipt key that commands the issuance of receipts and an amount input means for entering the amount data of receipts. When the receipt key is issued by the receipt key after registration of the product to be processed as a transaction, In an electronic cash register for issuing a receipt using a receipt sheet in which a person signature field, an issuer field, a date field, etc. are provided and the amount of money data input by the amount input means is printed in the amount field.
A transaction amount memory for storing the total amount of products processed as one transaction;
Issuance amount memory that stores the total amount of receipts issued in one transaction;
A receipt control table memory capable of storing a plurality of receipt amounts;
Amount adding means for adding the amount data to the issuance amount memory every time the amount data of the receipt is input by the amount input means after the registration of the product to be sold as one transaction.
Each time the amount data is added to the issued amount memory by the amount adding means, the total amount in the issued amount memory is compared with the total amount in the transaction amount memory. Amount processing means for sequentially storing in the control table memory;
When the receipt key is input in a state where the amount data is stored in the receipt control table memory, a receipt in which the amount of the amount data is printed in the amount column for each amount data stored in the receipt control table memory. Receipt issuance control means for controlling the issuance of
Electronic cash registers, characterized by comprising a.

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