JPS5941234B2 - Paper feed control device using momentary key - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feed control device that controls paper feed using momentary keys such as keys on a flexible keyboard.

In general, key types include momentary keys, which cyclically search for the key operation position regardless of the length of the operation time, and output a short key operation signal only when a key operation is detected. There is a stay-down key that continues to output a key operation signal for the entire time it is on. An example of an electronic device that uses such a key to feed paper is an electronic cash register. In other words, a cash register is equipped with a receipt and a journal, which can be fed by key operation. Conventionally, in such a cash register, feed control was performed using, for example, a momentary key. In this case, a receipt is generated using a short-time operation signal obtained by detecting a key operation.
There are known devices in which a pulse motor for journal feeding is rotated a predetermined number of times, and devices in which feed control is performed using a stay-down key, allowing receipts and journals to be fed to any desired length by key operation. However, with the former, although it has the advantage of being able to set keys arbitrarily using a flexible keyboard, it has the disadvantage that it is not possible to obtain the desired feed amount because the feed amount is predetermined.

In the latter case, you can obtain the desired amount of feed, but such keys cannot be set on the flexible keyboard. Even if the various keys necessary to carry out the operation were set and there was enough room, there was an inconvenience that the receipt and journal feed keys had to be provided separately from the keyboard. This invention has been made in view of the above-mentioned problems, and it is possible to control the feed of paper using a momentary key, and furthermore, the present invention is a momentary key that allows the feed amount to be arbitrarily set in accordance with the key operation time. The purpose of the present invention is to provide a paper feed control device using a paper feed control device. Embodiments of the present invention will be described below with reference to the drawings.

In this embodiment, the present invention will be described as applied to an electronic cash register. FIG. 1 is a perspective view showing the appearance of an electronic cash register according to the present invention.
2 is a casing, and 2 is a keyboard provided at the center of the front of the casing 1. The keyboard 2 includes a number key 3 for inputting the selling price of a product, a department key 4 provided for each product category and which is operated immediately after the operation of the number key 3 to generate a price registration signal, and a department registration button. a total key 5 for carrying out a deletion, a cancellation key 6 for generating a command to cancel registered data;
A receipt feed key 7 that generates a feed signal for feeding resort, which is printing paper, and a journal feed key 18, which generates a feed signal for feeding journal, which is printing paper, are provided. At the center of the front of the housing 1 are a control switch 9 for setting the business mode to "setting mode,""registrationmode,""accountingmode," and "clear mode," a receipt issuing port 10, a journal monitoring window 11, and a key. A drawer table 12 is provided. 13 is a display section provided at the upper front of the casing 1, and 14 is a drawer provided at the lower front of the casing 1.

FIG. 2 is a block diagram showing an outline of a specific circuit system, which can be constructed from, for example, a well-known microcomputer.

21 is CPlJ (central processing unit), and this CPlJ
2l has a built-in arithmetic circuit, an instruction decoder, a memory control circuit, etc., and performs various arithmetic processing based on the input signal from the control switch 9 and each key input signal from the keyboard 2, the storage section 22, and the input/output section. 2
I am trying to get 3 to work.

The storage unit 22 includes a plurality of ICs that store fixed data such as programs that perform processing corresponding to each key operation.
ROM (read only memory) consisting of elements 24
and product sales price, product classification symbol, total sales amount,
It is equipped with a RAM (random access memory) 25 made up of a plurality of IC elements that stores variable data such as the total number of sales points and other soft codes to be described later. This R
The data in OM24 and RAM25 are at address. bus 2
6 and data. Information is exchanged with the CPlJ2l in a time-sharing manner through the bus 2r, and at the same time, selection control of each C element is performed via the ROM selector 28 and RAM selector 29 via control signal lines 30 and 31. The input/output section 2
3 is the above data. Output ports 32, 33, 34 connected to CP{J2l through bus 27, input port 35,
It includes a keyboard circuit unit 36 and a display circuit unit 37, each of which receives a control signal line 38 from the CPlJ2l. A signal from the output port 32 is input to a drawer opening device 39, and the drawer 14 is opened after the calculation is completed. Said output port 3
Various timing clocks from CPIJ 21 are inputted to various parts constituting the input/output section 23, and timing control with the CPIJ 2l is performed. The output port 34
The signals from the printer drive circuit 40 are inputted to the printer drive circuit 40 to control the printing operation of the printer 41. A feed signal (FEED) for feeding printed paper and a cut signal (CIJT) for cutting a receipt are input to the printer 5 drive circuit 40, respectively. A signal from the control switch 9 is input to the input port 35, and a desired business mode is set based on this signal by a program in the ROM 24.
The keyboard circuit unit 36 includes the keyboard 2
The display section 13 is also connected to the display circuit unit 37. 42 is the ROM24
10 for reading receipt and journal feed programs (to be described later) stored in the internal memory with an interrupt.
This is a 0msec interrupt signal generation circuit.

As shown in FIG. 3, the keyboard 2 is a flexible keyboard formed by a key matrix circuit, and each of the keys 3, 4, 5,
6, r, and 8 are set.

In this keyboard 2, for example, a recorder 43 sequentially outputs signals on the X-axis line of the key matrix, and a selector 44 detects a signal output on the Y-axis line to detect the key operation position. The various keys provided on this keyboard 2 are momentary keys. The recorder 43 and selector 44 are controlled by a keyboard control section 45,
These constitute the keyboard circuit unit 36. When the keyboard control unit 45 detects a key position based on the output to the recorder 43 and the input from the selector 44, the keyboard control unit 45 outputs a hard code corresponding to the key position to the CPIJ2l.
I am trying to output to . As shown in FIG. 4, the ROM 24 is specifically set with a receipt feed program PrS and a journal feed program Pj. As shown in FIG. 5, the RAM 25 temporarily stores soft codes input when setting key functions.
a byte setting code memory area 46; a 64-byte soft code table memory area 47, for example, which is provided corresponding to the key arrangement position on the key matrix of the keyboard 2 and stores soft codes set for each key;
For example, the 1-byte hard code storage memory area 48 of the receipt feed key stores the hard code generated corresponding to the key position when the receipt feed key is set. A hard code stock memory area 49 of, for example, 1 byte, which stores a hard code generated corresponding to the key position, and a hard code storage area 49, for example, of 1 byte, which stores a code that prohibits the execution of a feed control program. An interrupt mask memory area 50 is specifically provided. When setting key functions in this device, the control switch 9 is first set to "clear mode".

If an arbitrary key is operated repeatedly, for example, three times in this state, the CPU 2l controls the RAM 25 and initializes the contents of the RAM 25. In other words, the interrupt mask memory area 50
A prohibition code, for example, "01" is written to the memory area, and other memory areas 46, 47, 48, and 49 are cleared. First, sequentially operate the keys that you want to use as number key 3. When this key operation is performed, the CPIJ2l determines that it is a numeric key from 0 to 9, and stores the preset soft codes 30 to 39 for numeric keys in the soft code table memory corresponding to the operated key position. The addresses in area 47 are written in sequence. In this way, first place number key 3
to be set. Next, set the control key 9 to "setting mode". In this state, the number key 3 is operated to input a preset soft code corresponding to the desired key function. For example, total key 5 force 50
”, use numeric key 3 to enter “5”, “0”. This soft code is temporarily stored in the setting code memory area 46. In this state, operate the key you want to use as the total key.
As a result, the soft code in the setting code memory area 46 is transferred and stored at the address in the soft code table memory area 47 corresponding to the operated key position. In this way, the key just operated is set as the total key 5. By repeating such operations, various function keys 1 and department keys 4 are sequentially set. However, separate setting processing is performed for the settings of the receipt feed key 7 and the journal feed key 18. For example, to set the receipt feed key 7, first input a soft code for the receipt feed key 1 using the numeric key 3, such as ``20''. This soft code ゛20''
is temporarily stored in the setting code memory area 46 as described above. In this state, operate the key you want to set to L seat feed key. As a result of this operation, the soft code '20' in the setting code memory area 46 is stored at the address in the soft code table memory area 47 corresponding to the operated key position. Further, a hard code generated corresponding to the operated key position is stored in the hard code stock memory area 48 for the receipt feed key. In this way, the setting of the receipt feed key 7 is completed. Similar processing is performed for setting the journal feed key 18, but at this time, a hard code generated corresponding to the operated key position is stored in the hard code stock memory area 49 for the journal feed key 1. In this way, various keys on the flexible keyboard 2 are set.

When the key settings are completed, normal registration work can be performed, but when performing this work, the control switch 9 is set to "registration mode". In this "registration mode", enter the product's selling price using the number key 3.
By setting the number in , and specifying the department corresponding to the product using the department key 4, single item registration can be performed, and registration for one customer can be completed using the total key 5. In addition, the sales price of the registered product, its category, total price, etc. are displayed on the display unit 13 and displayed on the printer 41 every time the product is processed.
This allows printing on resorts and journals. In the "registration mode", the user operates the resort feed key 7 when he or she wants to perform feed control over the resort.
By this key operation, the CPU 2l clears the interrupt prohibition code ``01゜'' in the interrupt mask memory area 50 and sets it to 00''.
2l receives an interrupt signal from the 100mSeC interrupt signal generation circuit 42. Upon input of this interrupt signal, CP{J2l reads out the hard code indicating the position of the receipt feed key 7 from the receipt feed key hard code stock memory area 48, and uses the hard code and the actual key operation. The hard code thus input is compared to check whether the operated key is the receipt feed key 7. If it is determined through this check that the receipt feed key 7 is being operated, the CPI
J2l reads the receipt feed program Pr from the ROM 24 and executes the printer 5 based on the program Pr.
A receipt feed command is sent to the drive circuit 40, and receipt feed control is started. This feed control processing is carried out from the 100mse q-input signal generation circuit 42 to 100msec.
Since the operation of the receipt feed key 7 is checked and performed every time an interrupt signal is inputted every mseC, as long as the receipt feed key 7 is operated, the receipt feed control is performed continuously. . When the operation of the receipt feed key 7 is completed, the receipt feed key 7 operation check checks that no key operation has been performed, and an interrupt prohibition code "01" is immediately set in the interrupt mask memory area 50. The above is the resort feed control by operating the receipt feed key 7, but the journal feed control by operating the journal feed key 18 is also performed in the same way.
Although we have described what happens in the "registration mode", it is done in exactly the same way in the "inspection mode" and "settlement mode". In this way, even if the receipt feed key 7 and the journal feed key 8 are momentary keys, the feed amount can be arbitrarily set by the key operation time, similar to the stay down key.

Moreover, since it is a momentary key, it can be installed on a flexible keyboard together with numeric keys, department keys, etc., making it easy to manufacture.It also has excellent economic efficiency because it does not require the use of extra key switches. It is effective. In the above embodiments, the present invention is applied to an electronic cash register, and the feed control of receipts and journals is described, but the present invention is not limited to this, and the point is that the invention is applied to an electronic cash register to feed the paper by key operation. It can be applied in

As detailed above, according to the present invention, the paper feed amount can be arbitrarily set by using the momentary key depending on the key operation time, and since it is a momentary key, it is possible to set the paper feed amount arbitrarily by using the momentary key. Accordingly, it is possible to provide a paper feed control device using a momentary key which can be set to 1 and has excellent effects such as improved ease of manufacture and economical efficiency.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view showing the external appearance, Fig. 2 is a block diagram showing the circuit configuration, Fig. 3 is a circuit configuration diagram of the keyboard section, and Fig. 24 is a ROM. Figure 5 shows a part of the program stored in RA.
It is a figure showing a part of memory configuration of M. 2...Keyboard, 7...Receipt feed key 1, 8......Journal feed key 1,
21...Central processing unit (CPIJ), 2
4...Lead, only. Memory (ROM), 2
5...Random. access. Memory (RAM)
, 36...keyboard circuit, 42...
100msec interrupt signal generation circuit, 47... Soft code table memory area, 048...
Hard code stock memory area for receipt feed, 49...Hard code stock memory area for journal feed, 50...Interrupt mask memory area.

Claims (1)

[Claims] 1 A memory area that stores a hard code set corresponding to the placement position of a momentary key that should be used as a feed key, a memory area that stores a program that controls paper feed, and a feed control program for this memory area. an interrupt timer that outputs a signal to start execution at predetermined time intervals, a memory area that stores a soft code that specifies a memory area that stores the feed control program, and a memory area that prohibits execution of the feed control program. An interrupt mask memory area is provided to store the code, and the prohibition code in the interrupt mask memory area is cleared in response to the operation of the momentary key, and the prohibition code in the interrupt mask memory area is disabled in response to the output signal of the interrupt timer. The code is checked, and if the prohibition code in the interrupt mask memory area is cleared, the hard code in the memory area that stores the hard code is compared with the hard code input by operating the momentary key, and both codes are checked. 1. A paper feed control device using a momentary key, characterized in that paper feed control is performed by executing the above-mentioned feed control program based on coincidence detection.