JPS592589Y2 - electronic cash register - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electronic cash register (hereinafter referred to as ECR), in particular, for example, a random access memory (R).
It relates to an ECR having a memory in which data can be rewritten, such as AM).

In conventional ECRs, an initial clear switch for clearing the contents of data memory (for example, RAM) is mounted as a dip switch on the keyboard board.

Therefore, when operating this initial clear switch, it was necessary to open the ECR housing.

As described above, in the conventional ECR, the housing must be opened for initial clearing, which is troublesome.

Therefore, the purpose of this invention is to provide an ECR which can eliminate the above-mentioned drawbacks of the conventional ones and allows easy initial clearing.

To summarize, this idea is a mode switch that selects multiple modes, and a mode switch that selects the initial clear mode by inserting the key and rotating it to a predetermined position is installed on the keyboard, and when the power is turned on, the mode switch selects the initial clear mode. If the mode is selected, the contents of the memory are cleared.

This invention will be explained in detail below along with embodiments shown in the drawings.

FIG. 1 is a schematic block diagram showing an embodiment of this invention.

In the configuration, a display section 2, a printer 3, and a keyboard 4 are connected to the CPU 1.

Further, RAM5 and ROM7 are connected to CPU1.

In this RAM 5, for example, unit price data for each product, sales data, data for various calculations, etc. are written.

This RAM 5 is backed up by an internal power supply 6 of the ECR, so that even if the drive power of the ECR is cut off for some reason, its stored contents will not be cleared.

Further, the ROM 7 is for storing fixed data, such as operation program data as shown in FIG.

Normally, this ROM 7 is constructed such that its stored contents cannot be rewritten.

As mentioned above, ECR memory includes memory that stores fixed data (for example, ROM7) and memory that stores data that can be cleared after certain processing is completed (for example, RAM5). .

The above-mentioned initial clearing means clearing the contents of the latter memory, ie, the RAM 5, etc., in the initial state.

FIG. 2 is a diagram showing details of the keyboard 4.

This keyboard 4 is provided with a power switch 41 for switching on/off the operation of the ECR.

Further, the A-board 4 is provided with a mode switch 42 for switching between various modes.

A key (not shown) is inserted into the mode switch 42 and turned.

Then, a predetermined mode is selected depending on the rotation position.

In other words, the initial clear mode is selected at the ICL position, the setting mode is selected at the P position, the registration mode is selected at the REG position, the inspection mode for checking the registered contents is selected at the X position, and the specific mode is selected at the Z position. Select a checkout mode that only administrators can operate.

Note that the NP color position is a neutral position in which neither mode is selected.

In this way, the mode switch 42 selects the initial clear mode at the ICL position, which is the most significant feature of this invention.

The mode switch 42 can only be rotated to the ICL position using a special key for the administrator.

This prevents the ECR from being initial cleared by anyone other than the administrator, thereby preventing misuse.

Further, the keyboard 4 is provided with a numeric keypad 43 for inputting various numerical information and a product key 44 for inputting a product code for each product or product type.

Further, the keyboard 4 is provided with a subtotal key 45 and a deposit/cash key 46 for performing a closing operation.

FIG. 3 is a flowchart for explaining the operation of the CPU 1 shown in FIG.

The operation of this embodiment will be explained below with reference to FIG.

First, the power switch 41 is turned on by the operator.

Accordingly, the CPU 1 determines whether the currently selected mode is the initial clear (ICL) mode, the registration (REG) mode, or the report creation (XorZ) mode.

If it is in the initial clear mode, the memory contents of the RAM 5 are cleared.

That is, if the initial clear mode is selected when the power is turned on, the contents of the RAM 5 are initially cleared.

On the other hand, if the registration mode is selected when the power is turned on, the CP
U1 performs a registration operation.

Furthermore, if the report creation mode is selected, a report creation operation is performed.

Further, if no mode is selected, other processing is performed.0 When the above-described operation is completed, the CPU 1 waits until the next operation.

Then, if there is a next operation, the operation will be performed according to the mode at that time.

As described above, according to this invention, a mode switch is provided on the keyboard that allows selection of the initial clear mode, and if the initial clear mode is selected when the power is turned on, the contents of the memory are cleared. The contents of the memory can be easily cleared without opening the ECR housing as in the conventional case.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram showing an embodiment of this invention. FIG. 2 is a diagram showing details of the keyboard 4. FIG. 3 is a flowchart for explaining the operation of the CPU 1. In the figure, 1 is the CPU, 4 is the keyboard, and 5 is the RAM
, 42 indicates a mode switch.

Claims (1)

[Claims for Utility Model Registration] A mode switch provided on the keyboard for selecting multiple modes in an electronic cash register including a memory in which the date can be rewritten, the mode switch being provided on the keyboard and selecting a plurality of modes when the key is inserted and the key is inserted into a predetermined position. an electronic cache comprising: a mode switch that selects an initial clear mode by rotating the cache; and a clearing means that clears the contents of the memory when the mode switch selects the initial clear mode when the power is turned on. register.