JP6724374B2 - Calculation data printing device and program - Google Patents

Description

The present invention relates to a calculation data printing apparatus such as an electronic desk calculator (calculator with a printer) having a printing function of calculation data and a control program therefor.

Conventionally, there has been proposed a printer-equipped calculator that can save a calculation formula input at the first time and input the same calculation formula at the second time to perform a double-correction check for correctness determination (for example, see Patent Document 1). ..).

This calculator with printer does not print the calculation data associated with the first calculation, but prints a series of calculation data when the second calculation formula is input. As a result, even if there is an input error in the first calculation, the correct input content can be printed after confirmation of the second calculation, so wasteful printing can be prevented.

JP, 08-241285, A

In general, a calculator with a printer has an advantage that each time the number of calculations and the number of operands of a calculation formula are input, they are sequentially printed as calculation data and the calculation work can be performed while checking the series of input formulas. However, this advantage cannot be obtained unless the calculation data associated with the first calculation is printed unlike the conventional calculator with a printer.

That is, in the verification method of inputting the same calculation formula the second time and checking whether the input calculation data is displayed or printed each time, instead of the double-correction verification that is correct and incorrect compared with the first calculation, The conventional printing method of the calculator with a printer cannot prevent useless printing.

The present invention has been made in view of the above problems, and it is possible to save unnecessary printing by preventing unnecessary printing when correcting calculation data after the calculation data is input and printed. An object of the present invention is to provide a printing apparatus and a control program for the printing apparatus.

A calculation data printing device according to the present invention is a calculation data input unit for inputting calculation data including a numerical value and an operator, a rounding mode setting unit for setting a rounding mode , and a rounding mode set by the rounding mode setting unit. wherein calculating the calculated data input means of a plurality of calculation data input by the result data, the calculation data printing means for printing the first print data including the result data the calculated, input by the calculation data input means When any one of the calculated data is corrected according to the user operation, the result data of at least one calculated data including the corrected calculated data is newly calculated in the rounding mode set by the rounding mode setting means. the new second print data including the calculated result data, the first print data and the print difference determining means for determining whether or not different, the second printing by the printing difference determining means A print prohibition unit that prohibits printing of the second print data including the newly calculated result data when it is determined that the data is not different from the first print data. I am trying.
A calculation data printing apparatus according to the present invention includes calculation data input means for inputting calculation data including numerical values and operators, rounding mode setting means for setting any one of a plurality of rounding modes, and rounding mode setting means. Calculation data printing means for calculating result data of a plurality of calculation data input by the calculation data inputting means in a rounding mode and printing first print data including the calculated result data; and the rounding mode setting. When the rounding mode is changed by the means, the result data of the plurality of input calculation data is newly calculated according to the changed rounding mode, and the second print data including the newly calculated result data is generated. A case in which the print difference determination unit determines whether or not the first print data is different from the first print data, and the print difference determination unit determines that the second print data is not different from the first print data. And a print prohibition unit that prohibits printing of the second print data including the newly calculated result data.

According to the present invention, after the calculation data is input and printed, it is possible to prevent wasteful printing when modifying the calculation data and save the printing.

The front view which shows the external appearance structure of the calculator 10 with a printer which concerns on embodiment of the calculation data printing device of this invention. The block diagram which shows the structure of the electronic circuit of the said calculator 10 with a printer. The flowchart which shows the calculation data printing process (the 1) of the said calculator 10 with a printer. The flowchart which shows the calculation data printing process (the 2) of the said calculator 10 with a printer. FIG. 7 is a diagram illustrating a display/print/calculation operation according to a user operation in the first embodiment of the calculation data printing process, in which the print data does not change (is different) even if the calculation data is corrected. FIG. 10 is a diagram showing the display/print/calculation operation according to a user operation in the case where the print data changes (is different) when the calculation data is corrected in the first embodiment. FIG. 10 is a diagram illustrating a display/print/calculation operation according to a user operation when the print data does not change (difference) even when the setting of the rounding mode is changed, which is Embodiment 2 of the calculation data printing process. FIG. 11 is a diagram showing the display/print/calculation operation according to a user operation when print data changes (differs) when the setting of the rounding mode is changed in the second embodiment.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing an external configuration of a calculator 10 with a printer according to an embodiment of a calculation data printing device of the present invention.

This calculator 10 with a printer is provided with a key input unit 11 on the front side of a stand-type main body case that is easy to operate on a desk, and a display unit 12 and a printing unit 13 on the back side of the key input unit 11.

The key input unit 11 includes keys for entering numerical values ([0][00][1] to [9][.]) and keys for specifying operators ([+=][-][×]. ] [÷] [G* (Grand Total)] [* (Total)] [%] [TAX-] [TAX+] [M* (Memory Recall Clear)] to [M+ (Memory Plus)] [MU (Markup )/MD (mark down)], etc.), clear all key [CA], clear key [C], input calculation data recall key [△] [▽], correction instruction key [CORRECT], print designation Keys [RE], [PRINT], etc. are provided. In addition, in the present invention, the operator is not limited to the four arithmetic operators, and includes an operation instruction for performing total calculation and total operation, and an operation instruction including calculation execution.

When the [+=] key is input, the calculation data obtained as a result of adding up to the numerical value input immediately before the [+=] key is obtained.

Further, the key input section 11 includes a print mode switch 11a, a round (rounding mode) switch 11b, and a decimal point designating switch 11c.

The print mode switch 11a has switching positions of "OFF", "ON", and "PRINT". The power is OFF at the "OFF" position, and the power is turned on at the "ON" position to set the print mode OFF. At the "PRINT" position, the power is turned on and the print mode is set to the ON state (a state in which printing is performed each time the input of calculation data is confirmed).

The round (rounding mode) switch 11b is a switch for designating a rounding process of how to calculate the fractional part, and as shown in FIG. 1(A), "F", "CUT", "UP", "5/ It has a switching position of 4". At the position of "F", the decimal point is calculated without rounding, rounding is performed, at the position of "CUT", up to the specified digit after the decimal point is "truncated", and at the position of "UP", the decimal point is specified. Calculate up to the number of digits by "rounding up", and at the "5/4" position, calculate up to the designated digit after the decimal point by "rounding off".

The decimal point designating switch 11c is a switch for designating “up to the number of digits” after the decimal point when the round switch 11b is designated as “CUT”, “UP” or “5/4”. There is a digit designation position from "" to "6", and the last digit of the designated number is "rounded down", "rounded up" or "rounded off".

The [RE] key and the [PRINT] key for designating printing are arranged adjacent to each other so that they can be pressed simultaneously, although their key tops are independent as shown in FIG. 1(B). When the [PRINT] key is pressed alone, the series of calculation data calculated immediately before that is printed in the print mode OFF state, and when the [RE]+[PRINT] keys are pressed simultaneously, the print mode Regardless of OFF/ON, a series of calculation data calculated immediately before that is printed (reprinted).

Even when the print mode is ON, if the [PRINT] key is pressed twice in succession alone, or if it is pressed for a predetermined time or longer, the series of calculation data calculated immediately before that is re-executed. Printed.

The display unit 12 includes a liquid crystal display panel including 12-digit segments, and the input calculation formula and calculation result calculation data are displayed each time.

The printing unit 13 includes, for example, a thermal transfer printing mechanism, and prints the calculation data on the recording paper P based on the setting state of the print mode OFF/ON and the input states of the [RE] key and the [PRINT] key. To print and output.

FIG. 2 is a block diagram showing a configuration of an electronic circuit of the calculator 10 with the printer.

The electronic circuit of the calculator 10 with a printer includes a CPU (processor) 11 which is a computer. The CPU 11 controls the operation of each part of the circuit according to the computer control program stored in the memory 22, and executes various calculation functions and calculation data printing functions according to the user operation of the key input section 11.

The CPU (processor) 21 is connected to the key input unit 11, the display unit 12, the printing unit 13, the storage unit 22 and the recording medium reading unit 24, and also communicates with an external device (30). The part 25 is also connected.

The computer control program is stored in the memory 22 in advance, is read from a recording medium reading unit 24 from an external recording medium 23 such as a memory card and is stored in the memory 22, or is a Web server on the communication network N. It is downloaded from the (program server) 30 via the communication unit 25 and stored in the memory 22.

The computer control program includes a calculation data printing processing program 22a for printing calculation data of calculation processing executed according to the calculation processing program, in addition to various calculation processing programs according to user operations.

Further, in the memory 22, a PRINT mode storage area 22b, an unprinted flag storage area 22c, a rounding mode (fraction processing mode) storage area 22d, a calculation mode storage area 22e, and a calculation data storage area 22f are secured.

In the PRINT mode storage area 22b, print mode OFF setting data is stored when the print mode switch 11a is in the "ON" position, and print mode ON is set in the "PRINT" position (every time input of calculation data is confirmed. The setting data (printing state) is stored.

The unprinted flag storage area 22c stores the unprinted flag ON data in the PRINT mode OFF state in association with a series of calculation data in the calculation process according to the user operation. Even when the mode is ON, if the print data changes (differences) from the previous print data due to the correction of the calculation data, the data of the unprinted flag ON is stored, and if the print data does not change (difference) from the previous print data, it does not print. The flag OFF data is stored.

Here, regarding the calculation data displayed on the display unit 12, the unprinted symbol “NOT PRINTED” is displayed when the unprinted flag is ON, and the printed symbol “PRINTED” is displayed when the unprinted flag is OFF. To be done.

In the rounding mode (fraction processing mode) storage area 22d, "CUT" "round down", "UP" "round up", "5/4" specified according to the position of the round (rounding mode) switch 11b. The setting data of "rounding off" and the setting data of the rounding digit designated according to the position of the decimal point designating switch 11c in the rounding mode are stored.

In the calculation mode storage area 22e, the setting data of the calculation registration mode for sequentially registering the calculation data of the calculation formula composed of the numerical value input according to the user operation and the calculation function as the journal data, or registered in the calculation registration mode. The setting data of the calculation confirmation (verification) mode in which the calculation data is called and displayed according to the input of the call keys [Δ] [▽] is stored.

In the calculation data storage area 22f, a series of calculation data input according to a user operation in the calculation registration mode is sequentially stored and registered as journal data.

In the calculator 10 with a printer configured as described above, the CPU 21 controls the operation of each part of the circuit according to the instruction described in the computer control program (including the calculation data print processing program 22a), and the software and the hardware cooperate. By working and operating, various calculation functions and calculation data printing functions as described in the following operation description are realized.

Next, the operation of the calculator 10 with a printer having the above configuration will be described.

3A and 3B are flowcharts showing the calculation data printing process (No. 1) (No. 2) of the calculator 10 with the printer.

When the print mode switch 11a is switched from "OFF" to "ON" or "PRINT", the calculator 10 is turned on, and the CPU 11 starts executing the calculation data print processing program 22a. The state of the switch 11a is read by the CPU 11, and the print mode OFF or print mode ON setting data is stored in the PRINT mode storage area 22b (step S1).

Further, the states of the round (rounding mode) switch 11b and the decimal point designating switch 11c are read by the CPU 11, and "CUT" "round down", "UP" "round up" in the rounding mode (fraction processing mode) storage area 22d. Either "5/4" or "rounding off" setting data and rounding digit setting data are stored (step S2).

(Example 1)
FIG. 4 is a first embodiment of the calculation data printing process, and is a display according to a user operation when the print data does not change due to the rounding process even if the numerical value of the calculation data is corrected in the PRINT mode ON state. FIG. 6 is a diagram showing a printing/calculation operation.

In the first embodiment, since the print mode switch 11a is in the "PRINT" position, the print mode ON setting data is stored, and the round (rounding mode) switch 11b is in the "5/4" position, the decimal point. The operation when the designation switch 11c is in the "2" position and the setting data of "rounding off" and "rounding digit: 2" is stored will be described.

As shown in FIG. 4A, after the clear all key [CA] is input according to the user operation of the key input unit 11, “33.334” [+=] “33.325” [+= ]], the input calculation data is stored in the calculation data storage area 22f each time the [+=] key is input. Then, as shown in FIGS. 4D1 to 4D3, a calculation corresponding to the setting data of the rounding mode (“rounding off” “rounding digit: 2”) is executed, and FIG. 4(B1)→(B2) As shown in, the calculation data of the calculation result is displayed on the display unit 12 as “33.33” (rounding calculation result of 33.334)→“66.66” (rounding calculation result of 33.33+33.325). (Steps S3 to S5).

At this time, since the print mode ON setting data is stored in the PRINT mode storage area 22b, as shown in FIG. 4C1, the printing section 13 causes the [CA] key and [+= Every time the] key is input, “...0...CA”, “33.33+(rounding calculation result of 33.334)”, “33.33+(rounding calculation result of 33.325)” and the recording paper P are sequentially printed. Is printed (step S6 (Yes)→S7).

Here, when the total key [*] is input, the calculation data (rounded calculation result of 33.33+33.325) “66.66” of the calculation result calculated as shown in FIG. 4D3 is obtained. 4B3 is displayed on the display unit 12 (steps S3 to S5).

Then, "66.66*" is printed on the recording paper P by the printing unit 13 (step S6 (Yes)→S7).

In the calculation data input/registration/calculation/display of the calculation result according to steps S3 to S5, if the print mode OFF setting data is stored in the PRINT mode storage area 22b (step S6 (No )), the data of the unprinted flag ON is stored in the unprinted flag storage area 22c, and the unprinted symbol "NOT PRINTED" is displayed on the display unit 12 (step S8).

Here, in order to confirm the series of calculations, as shown in FIG. 4A, the call key [∇] for the input calculation data is input once. Then, of the series of calculation data (input data) “33.334+” “33.325+” and (registered calculation result data) “66.66*” stored in the calculation data storage area 22f, the top The calculation data (input data) “33.334+” in the row “01” is called and displayed on the display unit 12 together with the verification symbol “REV” as shown in FIG. 4(B4).

In order to correct the calculation data (input data) “33.334+” of the first line “01” displayed on the display unit 12, a correction instruction key [CORRECT] is input as shown in FIG. 4(A). , When the calculation data with the third and fourth digits after the decimal point corrected is input as “33.3321” [+=], as shown in FIG. 4(B5), the corrected calculation data “33.3321+” is obtained. Is displayed on the display unit 12 together with the correction symbol “CRT” (step S9 (Yes)→S10).

Then, of the series of calculation data stored in the calculation data storage area 22f, as shown in FIG. 4D4, the corrected calculation data “33.3321+” up to the corrected first row “01” is It is recalculated according to the setting data of the rounding mode ("Rounding off" "Rounding digit: 2"), and the print data "33.33" which is the calculation data of the calculation result is printed according to the previous calculation (before correction). The data “33.33” is compared (step S11).

Here, the calculation data “33.3321” input this time (after correction) is different from the calculation data “33.334” input last time (before correction), but the calculation data (print data) of the calculation result is According to the rounding mode (“rounding off” “rounding digit: 2”), it becomes “33.33”, which is the same as the previous calculation data (print data).

Therefore, it is determined that there is no change (difference) in the print data (printed) (step S12 (No)), the data of the non-print flag OFF is stored in the non-print flag storage area 22c, and the result is shown in FIG. 4 (B5). As shown, the printed symbol "PRINTED" is displayed on the display unit 12 (step S13).

By displaying this printed symbol "PRINTED", the user can easily know that the calculation data (print data) of the recalculated calculation result has no change (difference) even if the previously input calculation data is corrected. You can

At this time, even if the [PRINT] key is input, the data of the unprinted flag OFF is stored in the unprinted flag storage area 22c, so that the series of calculation data is not reprinted (step S17). (Yes)→S18 (No)). As a result, wasteful printing in which the print data is the same can be prevented and the printing can be saved.

On the other hand, even when the unprinted flag is OFF, if the user wants the recording paper P on which the same calculation data is intentionally printed (save a copy, etc.), the [RE]+[PRINT] keys are pressed at the same time to reprint. Is instructed (step S19 (Yes)), as shown in FIGS. 4B6 to 4B8, a series of corrected calculation data “33.3321+” stored in the calculation data storage area 22f. “33.325+” is recalculated from the first line, and as shown in FIG. 4(C2), each calculation data associated with the recalculation is sequentially printed on the recording paper P by the printing unit 13 as described above. It is output (step S20).

When the unprinted flag is OFF, the calculation data is not reprinted even if the [PRINT] key is input (step S17 (Yes)→S18 (No)), but as a modified example. In response to the first input of the [PRINT] key, as shown in FIG. 4B9, a confirmation message “RE PRINT?” is displayed on the display unit 12 to confirm whether or not reprinting should be performed. (Step S18a).

Then, in response to the second input of the [PRINT] key, a series of calculations stored in the calculation data storage area 22f is performed as in the case shown in FIGS. 4(B6) to (B8)(C2). The data may be recalculated, and each calculation data associated with the recalculation may be sequentially printed on the recording paper P by the printing unit 13 (step S18b (Yes)→S20).

FIG. 5 is a first embodiment of the calculation data printing process and shows a display/print/calculation operation according to a user operation when the print data changes when the numerical value of the calculation data is corrected in the PRINT mode ON state. It is a figure.

First, as shown in FIG. 5A, regarding a series of calculation data “123.454” [+=] “987.645” [+=] input according to a user operation, FIG. As shown in (D3), when the calculation is executed according to the setting data of the rounding mode (“rounding off” and “rounding digit: 2”) and the total key [*] is input, FIG. As shown in B3), the calculation data of the sequentially calculated calculation results is “123.45+(123.454 rounding calculation result)”, “1111.10+(123.45+987.645 rounding calculation result)”, “1111. 10 (total display: 123.45+987.645 rounding calculation result)" is displayed on the display unit 12 (steps S3 to S5).

Further, as shown in FIG. 5C1, the calculation data of the calculation result is “... 0. CA” “123.45+” “987.65+” “1,111.10*” and the sequential printing unit 13 Is printed on the recording paper P (step S6 (Yes)→S7).

Here, as shown in FIG. 5A, the call key [▽] for the input calculation data is input twice, and the series of calculation data (input data) “123.454+” “987.645+”, Of the (registered calculation result data) “1111.10*”, the calculation data (input data) “987.645+” of the second line “02” is called, and as shown in FIG. It is displayed on the display unit 12 together with “REV”.

Then, by inputting the [CORRECT] key to instruct the correction and inputting the corrected calculation data “987.654” [+=], as shown in FIG. 5D4, the corrected second line “02 The calculation data (input data) "123.454+" and "987.654+" up to "are recalculated according to the rounding mode setting data ("rounding off" "rounding digit: 2"), and the calculation result The print data "987.65", which is the data of the above, is compared with the print data "987.65" calculated according to the previous calculation (before correction) (steps S9 to S11).

Here, the calculation data “987.654” input this time (after correction) is different from the calculation data “987.645” input last time (before correction), but the calculation data (print data) of the calculation result is , "987.65" according to the rounding mode ("rounding off" "rounding digit: 2"), which is the same as the previous calculation data (print data). Therefore, similarly to the above, it is determined that there is no change (difference) in the print data (printed) (step S12 (No)), the unprinted flag is set to OFF, and as shown in FIG. The printed symbol "PRINTED" is displayed (step S13).

Subsequently, as shown in FIG. 5A, the call key [Δ] (return) is input once, and the calculation data (input data) “123” in the first line “01” of the series of calculation data is input. .454+” is called and displayed on the display unit 12 together with the verification symbol “REV” as shown in FIG.

Then, when the [CORRECT] key is input to instruct the correction and the corrected calculation data “123.456” [+=] is input, as shown in FIG. 5D5, the corrected first line “01 The calculation data “123.456+” up to “” is recalculated according to the rounding mode setting data (“rounding off” “rounding digit: 2”) as described above, and print data “123. 46" is compared with the print data "123.45" calculated according to the previous calculation (before correction) (steps S9 to S11).

Then, since the calculation data (print data) “123.46” of the calculation result of this time (after correction) is different from the calculation data “123.45” of the previous time, it is determined that the print data has changed (unprinted) ( Step S12 (Yes)), the data of the unprinted flag ON is stored in the unprinted flag storage area 22c, and the unprinted symbol “NOT PRINTED” is displayed on the display unit 12 as shown in FIG. 5(B7) ( Step S14).

By displaying the unprinted symbol “NOT PRINTED”, the user can easily know that there is no change (difference) in the calculation data (print data) of the recalculated calculation result by correcting the calculation data input last time. be able to.

Then, when the [PRINT] key is input, it is based on the fact that the data of the unprinted flag ON is stored in the unprinted flag storage area 22c (step S18 (Yes)), and FIGS. 5B8 to 5B10. As shown in FIG. 5, the corrected series of calculated data “123.456+” and “987.654+” stored in the calculated data storage area 22f are recalculated from the first row and are shown in FIG. 5(C2). As described above, the calculation data “123.46+” “987.65+” “1,111.11*” of each calculation result associated with the recalculation is sequentially printed on the recording paper P by the printing unit 13 and output (step S20). ).

Even when the [RE]+[PRINT] keys are simultaneously pressed to instruct reprinting (step S19 (Yes)), similarly to the above, the calculation data “123.46+” of each calculation result accompanying the recalculation is obtained. ““987.65+” “1,111.11*” is sequentially printed on the recording paper P by the printing unit 13 and output (step S20).

As a result, when the calculation data is modified, the calculation data (print data) of the calculation result is different from the calculation data (print data) before the modification, and after the modification by the [PRINT] key is performed. Since it is possible to reprint the calculation data of, it is possible to prevent wasteful printing and save printing.

(Example 2)
FIG. 6 is a second embodiment of the calculation data printing process, in which display/printing according to a user operation when print data does not change (difference) even when the rounding mode setting is changed in the PRINT mode ON state -A diagram showing a calculation operation.

Currently, the calculator 10 stores print mode ON setting data when the print mode switch 11a is in the "PRINT" position, and the round (rounding mode) switch 11b is in the "5/4" position and the decimal point. Since the designation switch 11c is in the position of "0", the setting data of "rounding off" and "rounding digit: 0" is stored.

As shown in FIG. 6A, when “251” [×] “3” [=] [TAX+] is input in response to a user operation of the key input unit 11, the input calculation data is [×]. Each time the [][=][TAX+(tax rate 8%)] key is input, it is stored in the calculation data storage area 22f. Then, as shown in FIG. 6(D1), a calculation corresponding to the setting data of the rounding mode (“rounding off” “rounding digit: 0”) is executed, and as shown in FIG. 6(B1) to (B4). The calculation data of the calculation result is displayed on the display unit 12 as “251”→“3”→“753”→“813” (steps S3 to S5).

Further, as shown in FIG. 6C1, the calculation data of the calculation result is “...0.CA” “251.×” “3.=” “753.” “753.-T” “8. %T” “60.T” “813.+T” is sequentially printed on the recording paper P by the printing unit 13 (step S6 (Yes)→S7).

Here, although the tax amount is added by "rounding off" and "rounding digit: 0", the round (rounding mode) switch 11b is switched to the "CUT" position in order to recalculate with "rounding down" after the decimal point. Then (step S15 (Yes)), it is determined whether or not the calculation data to be recalculated is stored in the calculation data storage area 22f (step S16).

When it is determined that the calculation data corresponding to the series of calculations "251" [x] to [TAX+] is stored in the calculation data storage area 22f (step S16 (Yes)), the series of calculations. As shown in FIG. 6(D2), the data is recalculated in accordance with the setting data (rounded down after the decimal point) of the switched rounding mode, and print data “813” which is the data of the calculation result. Is compared with the print data “813” according to the previous calculation (before switching the rounding mode) (step S11).

Here, the setting data of the rounding mode is switched from "rounding off" to "cutting down" after the decimal point, but the calculation data (print data) of the calculation result becomes "813" and the previous calculation data (print data). Will be the same. Therefore, it is determined that there is no change (difference) in the print data (printed) (step S12 (No)), the data of the non-print flag OFF is stored in the non-print flag storage area 22c, and the result is shown in FIG. 6(B5). As shown, the printed symbol "PRINTED" is displayed on the display unit 12 (step S13).

By displaying the printed symbol “PRINTED”, the user can easily know that the calculation data (print data) of the recalculated calculation result has no change (difference) even if the setting data of the rounding mode is changed. be able to.

Then, as in the case shown in FIG. 4, even if the [PRINT] key is input, since the data of the unprinted flag OFF is stored in the unprinted flag storage area 22c, the series of calculation data Reprinting is not performed (step S17 (Yes)→S18 (No)). As a result, wasteful printing in which the print data is the same can be prevented and the printing can be saved.

If the [RE]+[PRINT] keys are pressed at the same time (step S19 (Yes)), as shown in FIGS. 6(B6) to (B9), the series of calculation data after the rounding mode switching is changed. Recalculation is performed from the first line, and as shown in FIG. 6C2, each calculation data associated with the recalculation can be printed on the recording paper P by the printing unit 13 in the same manner as described above (step S20).

Further, as in the case shown in FIG. 4, a confirmation message for confirming whether or not reprinting has been performed as shown in FIG. 6B10 in response to the first input of the [PRINT] key. “RE PRINT?” is displayed (step S18a), the series of calculation data is recalculated in response to the second input of the [PRINT] key, and each calculation data accompanying the recalculation is sequentially recorded on the recording paper P. It may be configured to print on (step S18b (Yes)→S20).

FIG. 7 is a second embodiment of the calculation data printing process, in which display/printing/calculation according to a user operation when print data changes (differs) when the rounding mode setting is changed in the PRINT mode ON state. It is a figure which shows operation.

Here, with the rounding mode set to "rounding off" after the decimal point, a series of calculation data [CA] "253" [x] "3" [=] [TAX+] is input according to the user operation. As in the case shown in FIG. 6, the calculation according to the calculation data is executed (see FIG. 7D1). Then, the calculation result data is sequentially displayed on the display unit 12 (see FIGS. 7B1 to 7B4), and is printed on the recording paper P by the printing unit 13 (see FIG. 7C1) (steps S3 to S7). ).

Here, when the round (rounding mode) switch 11b is switched to the "CUT" position in order to perform recalculation with "rounding down" after the decimal point (step S15 (Yes)), the series of calculation data shown in FIG. As shown in D2), recalculation is performed according to the setting data (rounded down after the decimal point) of the switched rounding mode, and the print data “819” which is the data of the calculation is the last time (rounding mode switching). It is compared with the print data “820” according to the above calculation (step S11).

Then, since the calculation data (print data) “819” of the calculation result of this time (after switching the rounding mode) is different from the calculation data “820” of the previous time, it is determined that the print data has a change (difference) (not printed). (Step S12 (Yes)), the data of the unprinted flag ON is stored in the unprinted flag storage area 22c, and the unprinted symbol “NOT PRINTED” is displayed on the display unit 12 as shown in FIG. 7(B5). (Step S14).

By displaying the unprinted symbol "NOT PRINTED", the user can easily know that there is a change (difference) in the calculation data (print data) of the calculation result obtained by switching the rounding mode and recalculating.

Then, as in the case shown in FIG. 5, when the [PRINT] key is input, as shown in FIGS. 7B6 to 7B9, depending on the data of the unprinted flag ON (step S18 (Yes)). In addition, the series of calculation data after the rounding mode switching is recalculated from the first row, and as shown in FIG. 7C2, the calculation data “253.×” to “253. 819.+T” are sequentially printed on the recording paper P (step S20).

By pressing the [RE]+[PRINT] keys simultaneously (step S19 (Yes)), similarly to the above, the calculation data of each calculation result associated with the recalculation can be sequentially printed on the recording paper P (step S20). ..

As a result, when the rounding mode is changed, only when the calculation data (print data) of the calculation result is different from the calculation data (print data) before switching, the correction data after the correction by the [PRINT] key is performed. Since it is possible to reprint the calculation data of, it is possible to prevent wasteful printing and save printing.

Therefore, according to the calculation data printing function of the printer-equipped calculator 10 having the above-described configuration, the rounding mode of "rounding down", "rounding up" or "rounding off" is set according to the user's operation, and the calculation including the numerical value and the calculation function is performed. When data is input, each time the calculation data is input, the calculation data is stored in the calculation data storage area 22f in the order of input, and calculation according to the calculation data is performed and calculated according to the setting contents of the rounding mode. The series of calculation data including the calculation result is sequentially printed on the recording paper P by the printing unit 13. Then, when any calculation data of the series of calculation data stored in the calculation data storage area 22f is corrected or the setting of the rounding mode is changed, the corrected calculation data (or the changed rounding mode) Is calculated, and it is determined whether the calculation data of the recalculated calculation result is different from the printed calculation data. If the calculation data is different, the unprinted flag in the unprinted flag storage area 22c is set to ON and the The print symbol "NOT PRINTED" is displayed on the display unit 12, and when there is no difference, the unprinted flag is turned off and the printed symbol "PRINTED" is displayed.

When the unprinted flag is ON (“NOT PRINTED” is displayed), the calculation data is corrected (or the rounding mode is changed) regardless of whether the [PRINT] key is input or the [RE]+[PRINT] keys are simultaneously input. A series of calculation data including the calculation result recalculated later) is sequentially printed on the recording paper P by the printing unit 13.

When the unprinted flag is OFF (“PRINTED” is displayed), even if the [PRINT] key is input, the recalculated series of calculation data is not printed, and the [RE]+[PRINT] keys are pressed. Only when they are simultaneously input, the recalculated series of calculation data is reprinted.

As a result, even if a series of calculation data that was once calculated and printed is corrected by verification or recalculated by changing the rounding mode, the recalculated calculation results will not change (difference) according to the settings of the rounding mode. If not, reprinting with the [PRINT] key is prohibited, and reprinting is performed only when the [RE] + [PRINT] keys are pressed simultaneously, so wasteful printing is prevented and printing is saved. Will be possible.

It should be noted that the method of each processing by the calculator 10 with a printer described in each of the embodiments, that is, each method of the calculation data printing processing shown in the flowcharts of FIGS. 3A and 3B is a program that can be executed by a computer. As a memory card (ROM card, RAM card, etc.), magnetic disk (floppy (registered trademark) disk, hard disk, etc.), optical disk (CD-ROM, DVD, etc.), semiconductor memory, etc. It can be distributed. Then, the computer (CPU) of the electronic computer having the printing function reads the program stored in the medium of the external storage device into the storage device, and the operation is controlled by the read program, whereby each of the above-described embodiments is executed. It is possible to realize the calculation data printing function described in the embodiment and execute the same processing by the method described above.

Further, the data of the program for realizing each of the above methods can be transmitted on the communication network (N) in the form of a program code, and from a computer device (program server) connected to this communication network (N). It is also possible to implement the above-mentioned calculation data printing function by loading the data of the program into an electronic computer having a printing function and storing it in a storage device.

The invention of the present application is not limited to the above-described embodiments, and can be variously modified in an implementation stage without departing from the scope of the invention. Furthermore, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the section of the problem to be solved by the invention If the above can be solved and the effect described in the section of the effect of the invention can be obtained, a structure in which these constituent requirements are deleted or combined can be extracted as the invention.

The inventions described in the initial claims of the present application will be additionally described below.

[1]
Calculation data input means for inputting calculation data including numerical values and operators,
A calculation data printing unit that, after a plurality of calculation data has been input by the calculation data input unit, calculates result data of the plurality of input calculation data and prints first print data including the calculated result data. When,
When any of the calculation data input by the calculation data input means is modified in response to a user operation, the uncorrected calculation data of the input plurality of calculation data and the modified calculation data And a print difference determining unit that determines whether the second print data including the newly calculated result data is different from the first print data.
A calculation data printing device comprising:

[2]
A print difference notifying means for notifying the determination result by the print difference determining means,
The calculation data printing device according to [1], further comprising:

[3]
Equipped with rounding mode setting means to set the rounding mode,
The calculation data printing unit calculates the result data of the input calculation data in the rounding mode set by the rounding mode setting unit every time the calculation data is input by the calculation data input unit, and the calculated data is calculated. Print the first print data including the result data,
The print difference determination means newly calculates result data of at least one calculation data including the corrected calculation data in the rounding mode set by the rounding mode setting means, and calculates the newly calculated result data. It is determined whether the second print data including the data is different from the first print data.
The calculation data printing device according to [1] or [2], characterized in that

[4]
Calculation data input means for inputting calculation data including numerical values and operators,
Rounding mode setting means for setting any one of a plurality of rounding modes,
After a plurality of pieces of calculation data have been input by the calculation data input means, result data of the plurality of pieces of calculation data that have been input is calculated in the set rounding mode, and first print data including the calculated result data. Calculation data printing means for printing
When the rounding mode is changed by the rounding mode setting means, the result data of the plurality of input calculation data is newly calculated according to the changed rounding mode, and the result data including the newly calculated result data is included. Print difference determination means for determining whether or not the print data of No. 1 is different from the first print data,
A calculation data printing device comprising:

[5]
A print difference notifying means for notifying the determination result by the print difference determining means,
The calculation data printing device according to [4], further comprising:

[6]
A first for printing the second print data including the newly calculated result data when the print difference determination unit determines that the second print data is different from the first print data Print instruction means of
A second print data for printing the second print data including the newly calculated result data when the second print data is determined not to be different from the first print data by the print difference determination unit; And a print instruction means of 2.
The calculation data printing device according to any one of [1] to [5], wherein the first print instruction unit and the second print instruction unit are different print instruction units.

[7]
The print instruction means is a print instruction means by key operation, and the key operation by the second print instruction means includes more key operations than the key operation by the first print instruction means.
The calculation data printing device according to [6], characterized in that

[8]
The first print instruction means is a single operation of a first key, and the second print instruction means is a simultaneous operation of the first key and a second key.
The calculation data printing device according to [6], characterized in that

[9]
The first print instruction means is one operation of one key, and the second print instruction means is two operation of the one key,
The calculation data printing device according to [6], characterized in that

[10]
A program for controlling a computer of an electronic device having a printing function,
The computer,
Calculation data input means for inputting calculation data including numerical values and operators,
A calculation data printing unit that, after a plurality of calculation data has been input by the calculation data input unit, calculates result data of the plurality of input calculation data and prints first print data including the calculated result data. ,
When any of the calculation data input by the calculation data input means is modified in response to a user operation, the uncorrected calculation data of the input plurality of calculation data and the modified calculation data Print difference judgment means for newly calculating the result data of, and for judging whether or not the second print data including the newly calculated result data is different from the first print data.
A computer readable program to function as.

[11]
A program for controlling a computer of an electronic device having a printing function,
The computer,
Calculation data input means for inputting calculation data including numerical values and operators,
Rounding mode setting means for setting any one of a plurality of rounding modes,
After a plurality of pieces of calculation data have been input by the calculation data input means, result data of the plurality of pieces of calculation data that have been input is calculated in the set rounding mode, and first print data including the calculated result data. Calculation data printing means for printing
When the rounding mode is changed by the rounding mode setting means, the result data of the plurality of input calculation data is newly calculated according to the changed rounding mode, and the result data including the newly calculated result data is included. Print difference determining means for determining whether or not the print data of No. 1 is different from the first print data,
A computer readable program to function as.

10... Calculator with printer 11... Key input section 11a... Printer mode switch 11b... Round (rounding mode) switch 11c... Decimal point designation switch 12... Display section 13... Printing section 21... CPU
22... Storage unit 22a... Calculation data print processing program 22b... PRINT mode storage area 22c... Unprinted flag storage area 22d... Rounding mode (fraction processing mode) storage area 22e... Calculation mode storage area 22f... Calculation data storage area 23... External Recording medium 24... Recording medium reading unit 25... Communication unit 30... Web server (program server)
P: Recording paper

Claims (13)

Calculation data input means for inputting calculation data including numerical values and operators,
Rounding mode setting means for setting the rounding mode,
Calculation data for calculating the result data of the plurality of calculation data input by the calculation data inputting unit in the rounding mode set by the rounding mode setting unit and printing the first print data including the calculated result data Printing means,
When any calculation data input by the calculation data input means is modified according to a user operation, at least one calculation data including the modified calculation data in the rounding mode set by the rounding mode setting means. And a print difference determining unit that determines whether the second print data including the newly calculated result data is different from the first print data.
When the print difference determination unit determines that the second print data does not differ from the first print data, the printing of the second print data including the newly calculated result data is prohibited. Print prohibition means,
A calculation data printing device comprising: A first for printing the second print data including the newly calculated result data when the print difference determination unit determines that the second print data is different from the first print data Print instruction means of
A second print data for printing the second print data including the newly calculated result data when the second print data is determined not to be different from the first print data by the print difference determination unit; 2 print instruction means,
Further equipped with,
The print prohibiting unit, when the print difference determining unit determines that the second print data is not different from the first print data, instructs the user to print by the second print instructing unit. Unless the printing is performed, printing of the second print data including the newly calculated result data is prohibited.
The calculation data printing device according to claim 1, wherein: A print difference notifying means for notifying the determination result by the print difference determining means
The calculation data printing apparatus according to claim 1, further comprising: Before SL calculated data printing means, wherein every time the calculation data input by calculation data input means, calculates result data calculated data the input in the set rounding mode by the rounding mode setting means, the calculating printing a first print data including result data,
The calculation data printing device according to claim 1 or 2, wherein Calculation data input means for inputting calculation data including numerical values and operators,
Rounding mode setting means for setting any one of a plurality of rounding modes,
A plurality of calculated result data of calculation data, the calculation data printing means for printing the first print data including the result data the calculated input by the calculation data input means rounding mode that is pre-Symbol set,
When the rounding mode is changed by the rounding mode setting means, the result data of the plurality of input calculation data is newly calculated according to the changed rounding mode, and the result data including the newly calculated result data is included. Print difference determination means for determining whether or not the print data of No. 1 is different from the first print data,
When the print difference determination unit determines that the second print data does not differ from the first print data, the printing of the second print data including the newly calculated result data is prohibited. Print prohibition means,
A calculation data printing device comprising: A first for printing the second print data including the newly calculated result data when the print difference determination unit determines that the second print data is different from the first print data Print instruction means of
A second print data for printing the second print data including the newly calculated result data when the second print data is determined not to be different from the first print data by the print difference determination unit; 2 print instruction means,
Further equipped with,
The print prohibiting unit, when the print difference determining unit determines that the second print data is not different from the first print data, instructs the user to print by the second print instructing unit. Unless the printing is performed, printing of the second print data including the newly calculated result data is prohibited.
The calculation data printing device according to claim 5, wherein A print difference notifying means for notifying the determination result by the print difference determining means,
The calculation data printing apparatus according to claim 5 , further comprising: Before SL computing data printing apparatus according to claim 2 or claim 6, characterized in that a first printing instruction unit and the second printing instruction unit and a different print instruction unit. The print instruction means is a print instruction means by key operation, and the key operation by the second print instruction means includes more key operations than the key operation by the first print instruction means.
7. The calculation data printing device according to claim 2 or 6 , wherein: The first print instruction means is a single operation of a first key, and the second print instruction means is a simultaneous operation of the first key and a second key.
7. The calculation data printing device according to claim 2 or 6 , wherein: The first print instruction means is one operation of one key, and the second print instruction means is two operation of the one key,
7. The calculation data printing device according to claim 2 or 6 , wherein: A program for controlling a computer of an electronic device having a printing function,
The computer,
Calculation data input means for inputting calculation data including numerical values and operators,
Rounding mode setting means for setting the rounding mode,
Calculation data for calculating result data of a plurality of calculation data input by the calculation data input unit in the rounding mode set by the rounding mode setting unit and printing first print data including the calculated result data Printing means,
When any calculation data input by the calculation data input means is modified according to a user operation, at least one calculation data including the modified calculation data in the rounding mode set by the rounding mode setting means. result data newly calculated, the second print data including the result data the newly calculated, print difference determining means for determining whether or not different from the first print data,
When the print difference determination unit determines that the second print data does not differ from the first print data, the printing of the second print data including the newly calculated result data is prohibited. Printing prohibition means,
A computer readable program to function as. A program for controlling a computer of an electronic device having a printing function,
The computer,
Calculation data input means for inputting calculation data including numerical values and operators,
Rounding mode setting means for setting any one of a plurality of rounding modes,
Calculating the result data of a plurality of calculation data input by the rounding mode which is pre-Symbol set by the calculation data input means, calculating data printing means for printing the first print data including the result data the calculated,
When the rounding mode is changed by the rounding mode setting means, the result data of the plurality of input calculation data is newly calculated according to the changed rounding mode, and the result data including the newly calculated result data is included. Print difference determining means for determining whether or not the print data of No. 1 is different from the first print data,
When the print difference determination unit determines that the second print data does not differ from the first print data, the printing of the second print data including the newly calculated result data is prohibited. Printing prohibition means,
A computer readable program to function as a.