JPS594344Y2 - cash register machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cash register that has a check function when reading input categories by adding a check digit to the receipt number that indicates the number of issued receipts. .

Usually, a serial number representing the number of issued receipts is printed on the receipt of a cash register, either alone or in combination with the register number.

This receipt number can be used as a code number to index and recheck sales data such as sales product names, amounts, and quantities in transactions, so it is widely used in systematizing sales management. .

However, this receipt number is generally a number of four digits or more due to the number of transactions, so when rechecking the index of sales data, there is a high possibility that the code number will be entered incorrectly.

For this reason, there is a drawback that there is a high possibility that incorrect sales data will be read.

This invention was made to eliminate the above-mentioned drawbacks.
A check digit calculation unit is provided to calculate a check digit from the receipt number, and this check digit is added to the receipt number.

As a result, when reading sales data, a check digit is entered along with the receipt number to check whether the receipt number has been entered correctly, and to check whether the receipt number was registered and printed by a specific registration machine. It also checks whether it exists or not.

Embodiments of the present invention will be described below based on the drawings.

In FIG. 1, 1 is a keyboard section as a data input device, 2 is a reading device as an input device for reading data, 3 is a central processing unit (CPU), and 4 is a storage device (
memory), 5 is a counter that counts the number of issued receipts, 7
8 is a printing device, and 8 is a display device, which constitute a conventional cash register capable of printing a receipt number representing the number of issued receipts on the receipt and reading input data using this receipt number.

Reference numeral 9 denotes a check digit calculation unit for calculating a check digit from the receipt number. , is configured to perform predetermined calculations based on the data from the counter 5.

Next, the effect will be explained.

First, the case of inputting sales data will be explained.

When sales data such as sales product name, amount, quantity, etc. of a transaction is input by key operation on the keyboard section 1, this sales data is stored in the memory 4 via the CPU 3 for each transaction, and is also displayed on the display device 8. , and the printing device 1 prints a predetermined location 11 on the receipt 10 as shown in FIG.
is printed along with the store name and date.

Further, the counter 5 counts the number of issued receipts, and the counted number (for example, 23651) is stored in the memory 4 via the CPU 3 and printed on the receipt 10 by the printing device 7.

At this time, this count number r23651J is checked.
Since it is also sent to the digit arithmetic unit 9, a predetermined arithmetic operation for generating a check digit is performed here.

Although there are various predetermined calculations for generating this check digit, a method called "module 11" will be explained as an example.

According to this method, the count number r corresponding to the receipt number
Each digit number of 23651J is “2”, “3”, “6”, “5”,
1", a predetermined number (weight number) for each registered machine (for example, "6" and "1000" for the digit of "10,000")
Multiply the digit by 5, the digit by 4, the digit by 3, the digit by 2, and the sum of these is 68. is divided by 11 and the remainder "2" is subtracted from the number of modules "11", resulting in "9", which is used as the check digit.

This check digit "9" is stored in the memory 4 via the CPU 3, and is added to the beginning of the count number r23651J on the receipt 10.
It will be printed as follows.

Next, a case will be described in which sales data that has already been input is read out for indexing or checking.

When the receipt number r923651J printed on the receipt 10 with the check digit "9" is input from the reading device 2, the same calculation as above is performed in the check digit calculation unit 9 to confirm that it has been input without error. If receipt number r923651j is r23651. A check digit "9" corresponding to the portion is generated and compared with the check digit "9" in the receipt number and determined to be correct.

If an incorrect human input is performed, a different check digit will be generated and determined to be an error.

If the check digit thus sent is correct, the CPU 3 searches the memory 4 for the receipt number, and the data is displayed on the display device 8, printing device 7, etc.

In the embodiment described above, the reading device 2 was used to perform indexing and checking of the sales data, but the present invention is not limited to this. You may also do so.

In the above embodiment, the function of the input/output device is the central processing unit (C
Although the so-called online case under direct control of the PU has been described, the present invention can also be used in the so-called offline case.

Since the present invention is configured as described above, it is possible to check whether the receipt number has been input without error when reading input data.

Therefore, the possibility of reading incorrect sales data is extremely low.

[Brief explanation of the drawing]

The drawings show an embodiment of the cash register according to the present invention, with FIG. 1 being a block diagram and FIG. 2 being an explanatory diagram showing the state of printing on a receipt. 1...Keyboard part, 2...Reading device, 3...
・Central processing unit (CPU), 4...Memory, 5...
Counter, 7...Printing device, 8...Display device, 9.
...Check digit calculation section, 10...Receipt,
11...Sales data.

Claims (3)

[Scope of utility model registration request] (1) At least an input device, a central processing unit, a storage device, a printing device, and a counter for counting the number of issued receipts are provided, and the counted value of the counter is printed on the receipt as a receipt number and the receipt is printed on the receipt. A cash register capable of reading input data corresponding to a receipt number by inputting a number from the input device, is provided with a check digit calculation section for calculating a check digit from the receipt number, A cash register characterized in that a number added with the check digit is printed as a receipt number on the receipt by the printing device. (2) The cash register according to claim 1, wherein the input device for inputting the corresponding receipt number in order to read the input data is a read-only reading device. (3) The cash register according to claim 1, wherein the input device for inputting a corresponding receipt number in order to read input data also serves as a keyboard section for data input.