JPS6226495B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a printing calculator such as a printing calculator.

Conventionally, printing type calculators have the advantage that calculation processes and calculation results can be left as a record on printed paper, and by viewing this record, it is easy to reconfirm calculation procedures and key operations. By the way, there is a "print mode" (a normal print mode in which the calculation process and calculation results are sequentially printed) and a "non-print mode" (normally, no printing is performed, but only the content that the operator instructs to print using the print key is printed in sequence). For printing calculators that have a selectable print mode (Print mode), all key operations can be recorded on printed paper, making it easy to reconfirm key operations after a series of key operations. On the other hand, in the "non-print mode", only the necessary information is recorded by pressing the print key, and unnecessary information is not recorded, which prevents wasted printing paper. It has the following characteristics. However, in the "non-print mode", the more frequently the print key is operated, the more prints remain in the record, making it extremely difficult to distinguish between the prints.

Furthermore, there are printing type calculators that allow you to select a so-called "result printing mode" in which only the calculation results are automatically selected and printed without printing the contents of the calculation process. In the above-mentioned "result print mode" of a computer, when many similar results are output, there is an inconvenience in that it is difficult to determine the number of the printed contents.

The present invention has been made to solve the above-mentioned inconveniences and inconveniences.
Alternatively, when printing in a selective printing mode such as "result printing mode," the content to be printed is printed sequentially along with a serial number, making it clear to distinguish between the printed content and making it easy to distinguish between printed content. so that you can see at a glance whether it is the
It is an object of the present invention to provide a printing type calculator that eliminates the above-mentioned disadvantages and inconveniences.

Hereinafter, the present invention will be explained in detail based on Examples.

FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention.

In the figure, 1 is a key input circuit, 2 is a sequential control circuit (CPU), 3 is a group of operation registers, and 4 is a key input circuit.
is a display body, 5 is a display drive circuit, 6 is a display register, 7 is a mode switch for selecting a mode regarding print output, 8 is a print register, 9 is a printer drive circuit, 10 is a printer which is a print output mechanism; 11 to 14 are AND circuits, 15 is an OR circuit, and 16 is a counter for counting serial numbers.

Upon receiving a key input from the key input circuit 1, the sequential control circuit 2 performs arithmetic processing using the arithmetic register group 3, outputs the result to the display register 6, and displays the contents via the display drive circuit 5. By displaying the calculator on the body 4, operation as a so-called display type calculator is possible when the mode switch 7 is connected to C.

The mode switch 7 related to print output consists of common signal lines C, P, and TP, and when C and P are connected, the mode is set to "non-print mode", and when C and TP are connected, it is set to "non-print mode". The "result print mode" is selected, and when C and P are connected (that is, when the common signal line C is open), the "print mode" is selected.

In the "print mode" where mode switch 7 connects C and P, when key operations "1, 2, 3" are performed on key input circuit 1, the input content "123" is displayed via CPU 2. The signal is input to the register 6 and the calculation register group 3, and is displayed on the display 4 as "123." Next, when the function key "x" (multiplication key) is operated in the key input circuit 1, the information of "123." and the multiplication function symbol information "x" are output from the calculation register group 3. is output to the output line 17, a micro order is generated, the AND circuit 11 is turned on, and the information "123. It is printed out by the printer 10.

Next, when the key ``2'' is operated on the key input circuit 1, the information ``2'' is input to the calculation register group 3 and the display register 6 in the same manner as described above, and the information ``2'' is inputted to the display register 4 on the display 4. .” is displayed. Next, when the function key "=" (multiplication execution key) is operated, the information "2." is transferred from the calculation register group 3, and
"=", which is function symbol information, is output from the CPU 2 to the output line 17, and a micro order is generated, and the AND circuit 11
The information "2.=" is input to the print register 8 via the printer 10, and is printed out by the printer 10. Next, CPU 2 and calculation register group 3 set "123 x 2".
As a result, "246" is input to the display register 6, and is output from the output line 17 together with the function symbol information "*", a micro order is generated, and the AND circuit 1
1 to the print register 8. Through the above operations, "246." is displayed on the display 4 and "246.*" is printed on the printer 10.

The output content of the printer 10 described above remains as a record as shown in FIG. Note that micro orders 〓 and 〓 do not occur in the “print mode”.

Next, the case of the "non-print mode" in which C and C are connected by the mode switch 7 will be explained.
Micro order in "Non-print mode"
and will not occur.

When the keys "6, 6, 9" are operated on the key input circuit 1, the input content "669" is inputted to the display register 6 and the calculation register group 3 via the CPU 2, and the display 4 shows "669". .” is displayed. Next, when the print key is operated in the key input circuit 1,
Information of "669." from operation register group 3, and
"P", which is function symbol information, is output from the CPU 2 through an output line 17. At this time, since the micro order is generated, the AND circuit 12 is turned on, and the information "669.P" is input to the print register 8. Furthermore, the micro order is generated, and the output of the OR circuit 15 is generated, and the AND circuit 14 is turned on. Then, the content "01" of the counter 16 for counting the serial number is input to the print register 8, and the printer 10 prints "01 669.P".

The counter 16 is reset to "01" when the circuit shown in FIG.
1 immediately after the contents of counter 16 are output from 4.
Immediately after the output of "01", the contents of the counter 16 count up by one and become "02".

Next, when a key operation of "11×11=" is performed on the key input circuit 1, "121." is displayed on the display 4 as a result of the arithmetic processing by the CPU 2 and the arithmetic register group 3. At this time, when the print key is operated in the key input circuit 1, the calculation result "121." is output from the calculation register group 3 via the CPU 2 from the output line 17 together with the function symbol information "P", and the micro order is Occur. AND circuits 12 and 14 turn on at micro order, and AND circuit 12
The result of the above calculation and the content "02" of the counter 16 are inputted from the AND circuit 14 to the print register 8, and the printer 10 prints out "02" 121.P. Immediately after this, the counter 16 counts up by one, and its content becomes "03".

The above operations leave a print as shown in FIG. 2 as a record.

Finally, the case where C and TP are connected by the mode switch 7 and the "result print mode" is selected will be described. In the "result print mode", micro orders and 〓 do not occur.

The micro order is generated when the CPU 2 completes arithmetic processing and inputs the result to the display register 6, and does not occur during an operation such as "123x".

When "64×4=" is operated on the key input circuit 1, the CPU 2 and the arithmetic register group 3 execute arithmetic processing, and the result of the arithmetic operation "256." is input to the display register 6. is output from the output line 17 together with the function symbol information "*". At this time, when the micro order is generated, the contents of "256.*" are input to the print register 8 through the AND circuit 13, and when the output of the OR circuit 15 is generated, the contents of "256.*" are input to the print register 8 through the AND circuit 14. 16 content “03” is input to the print register 8, and the printer 1
0, "03 256.*" is printed. Immediately after this, the counter 16 counts up by one and becomes "04".

Next, when the key operation of "42×3=" is performed on the key input circuit 1, "04 126.*" is printed on the printer 10 in the same manner as described above, and the calculation result "126. .” is displayed. Immediately after this, the counter 16 is incremented by one and becomes "05".

The above operations leave a print as shown in FIG. 2 as a record.

As is clear from Figure 2, when printing in modes other than print mode, a serial number is also printed corresponding to each print content, so you can see at a glance which key operation the print content corresponds to. , the distinction between printed contents becomes clear.

As explained in detail above, the printing calculator of the present invention has a normal printing mode ("print mode" in the embodiment) in which calculation processes and calculation results are sequentially printed, and a printing mode in which only selected contents are sequentially printed. In cases where two printing modes ("non-printing mode" or "result printing mode" in the embodiment) can be selectively selected, in the selected printing mode, the selected content is marked with its serial number. According to the present invention, the following effects are achieved.

The number of printed contents can be seen at a glance, and the printed contents can be clearly distinguished from each other. Furthermore, in recording on printing paper, printing in the normal printing mode and printing in the selective printing mode can be clearly distinguished by the presence or absence of serial numbers.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of printing in the same embodiment. code, 1: key input circuit, 2: sequential control circuit, 3: operation register group, 4: display body,
5: Display drive circuit, 6: Display register, 7: Mode switch for selecting a mode related to print output, 8: Print register, 9: Printer drive circuit, 10: Printer, 11,..., 14: AND circuit, 15: OR circuit, 16: counter, 17: output line.

Claims (1)

[Scope of Claims] 1. In a printing type calculator that can selectively operate between two modes: a normal printing mode in which calculation processes and calculation results are sequentially printed, and a selective printing mode in which only selected contents are sequentially printed, the above-mentioned A printing type calculator characterized by being provided with printing control means for sequentially printing the selected contents together with a serial number in the selection printing mode.