JPS6111832Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic cash register correction device that is easy to correct.

Conventionally, when making a correction due to a key operation error in an electronic cash register, it was possible to do so by operating only the correction key, but in the case of a correction after a receipt has been issued, it is necessary to correct the tax amount and the amount for each department. Corrections had to be made at the same time, which was extremely troublesome, and it was impossible to make corrections when there were many customers.

Therefore, in this case, errors made during registration before issuing a receipt, that is, before performing total processing for that customer, can be corrected by operating the correction key by performing the reverse calculation, while on the other hand, errors that occur during registration before issuing a receipt, that is, before performing total processing for that customer, are corrected. If there is an error in the receipt after completing the transaction and payment, etc., check the erroneous receipt and re-register correctly, hand the correct receipt to the customer, settle the payment, and end the day's work. If you input the wrong receipt exactly after changing to the payment mode and operating the correction key, an inverse operation, that is, subtraction, will be performed internally, and the duplicated and registered wrong receipt will be deleted and the correction will be made. Therefore, since the operator can perform the correction operation using the same input operation as at the time of registration, it is an object of the present invention to provide a correction device for an electronic cash register that facilitates the correction process. Examples of the present invention will be described below based on the drawings.

The figure shows a circuit diagram of an electronic cash register according to the present invention. In the figure, K denotes a keyboard, which has numeric keys N from 0 to 9, department keys D consisting of eight departments, a deposit key RA, a credit key CR, a correction key V, and other transaction keys, function keys F including a subtotal ST and a total key T, and mode keys M for instructing inspection X, settlement Z, and registration R.
and a power switch SW. Each key signal is conducted to a control circuit C via a signal line.
This is how the processing of registration, inspection and settlement is carried out. The control circuit C mainly uses the first and second registers R1 and R2 during registration to accumulate the results of the adder/subtractor AD in memory ME, which stores totals by department and by division. During inspection and settlement, the printer P is used to print out the contents of memory ME. F is a memory circuit made up of flip-flops, and is used in correction operations after receipts are issued.

First, let's talk about the correction before issuing a normal receipt, that is, before performing total processing. If the pre-registered amount is 100, press the correction key V to subtract 100 and return to the state before registration. . first
In the case of registration of 100, when 100 is entered, it is introduced into the first register R1 via the control circuit C. Next, when a department key with department key D is pressed, 100 in the first register R1 is transferred to the second register R2, and then the contents of the memory ME corresponding to the department key are read out to the first register R1. The adder/subtractor AD adds the sum, and the sum is stored in the first register R1, and then stored in the corresponding location in the memory ME, and the number 100 is held in the second register R2, and the corresponding The department is stored in the control circuit C. Therefore, when the correction key V is pressed, the signal is supplied to the control circuit C via the AND gate A1.
The same operation as the above registration is performed, but the control circuit C
A signal is generated at the output terminal V of , instructing the adder/subtractor AD to perform a subtraction operation. i.e. 100 at the time of registration
is subtracted and returns to the state before registration.

When making corrections after issuing a receipt, that is, after performing total processing, first set the mode key M to settlement Z using a key that can only be used by the person in charge. When the correction key V is then pressed, the AND gate A2 operates and the memory circuit F is set. At this time, the AND gate A1 is inoperative because a signal indicating the state of settlement Z is introduced through the inverter I, and normal correction operation is prohibited. When the memory circuit F is set, a set signal Q is generated and the adder/subtracter AD is set to the subtracting state. Therefore, even if you perform the same key operations as in normal registration, the value will always be subtracted. For example, during normal registration, if tax processing is performed at the same time as cumulative totals for each department, the above-mentioned subtraction settings will always result in subtraction in both departmental and tax processing. Therefore, if the user inputs the wrong receipt exactly as it was registered while looking at the wrong receipt, the contents of the wrong receipt will be deleted from the memory ME and the correction will be made. After the correction, when the mode key M is changed from the settlement Z to a different state, the AND gate A3 operates and the memory circuit F is automatically reset.

In the above example, corrections after the receipt is issued require the key of the person responsible for setting the mode key M on the payment Z, but when the memory circuit F is set, the correction can be made by sounding a buzzer or printing in red. If the configuration is such that the correction operation can be easily confirmed, the correction operation can be made possible in the registration R and inspection X states, which can be used without the key of the person in charge.

In the above example, addition is performed when registering, and subtraction is performed when making corrections, but conversely, there are cases where subtraction is performed during registration, such as with payment key Pd, and in that case, addition is performed in the opposite way to the above. Just configure it.

As mentioned above, the present invention uses a keyboard with numeric keys, function keys including departmental keys for classifying each product, various transaction keys, and a mode key for indicating inspection and settlement, and registration, inspection, and settlement processing using key signals. It consists of a control circuit that performs the process, a memory that stores data such as departmental and total data through the processing of this circuit, and a circuit that stores the press of the correction key when the mode key is in the payment state. The system performs the reverse process of addition or subtraction during registration, and the correction operation after issuing a receipt that involves payment of money can be performed in exactly the same way as at the time of registration, making the correction process easy.

[Brief explanation of the drawing]

The figure is a circuit diagram showing an embodiment of the present invention. K is a keyboard, M is a mode key, C is a control circuit, ME is a memory, and F is a storage circuit.

Claims (1)

[Scope of utility model registration request] Registration, inspection, and settlement processing are performed using key signals and a keyboard with function keys including numeric keys, departmental keys for each product classification, various transaction keys such as correction keys, and a mode key that indicates inspection and settlement. a control circuit that performs the processing, and a memory that stores data such as departmental data and total data through the processing of the control circuit;
The feature is that it is composed of a circuit that memorizes the operation of the correction key when the mode key is in the payment state, and an adder/subtractor that is controlled to perform the reverse process of addition or subtraction during registration by the output of the correction key or the memory circuit. Electronic cash register correction device.