JPS6115449B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a small electronic device having a calendar printing function that effectively prints dates on a calendar, particularly in a reference day column. Calendars are something that people frequently need or use on a daily basis in various places and situations such as homes and companies, but the calendars are created by a third party and are common to the general public for one year. Specific dates (holidays, events, stories, etc.) have already been given meaning as fixed information. In addition, calendars are generally placed in a state where they can be used commonly by many people, or attached to a notebook or the like that can be carried. However, if you don't have a calendar at hand when you need it, if you want to write schedules for company, store, or personal holidays, events, etc. on a calendar, or if you want to use a calendar from another country, it can be surprisingly difficult to obtain one. Hot,
Furthermore, it is difficult to write information on existing calendars, and it is not desirable for each person to use the calendar in a way that suits their wishes. Incidentally, in recent years, portable or easily movable small electronic devices with small printing devices, such as small electronic calculators with small printing devices and electronic cash registers, have become popular, and are used by a wide range of users such as companies, shops, and individuals. The above-mentioned small electronic devices have become commonplace. According to this, the above-mentioned small-sized electronic device having a small-sized printing device is convenient because it can not only perform calculation functions but also print numbers, symbols, etc. according to data and keep records. The compact printing device is controlled so that after printing one line is finished, the recording paper is fed so that the next line can be printed, and data is printed line by line. It also has a structure in which, for example, red and black printing ribbons are provided and two-color printing is possible by replacing these ribbons, but this two-color printing is possible because the ribbons are arranged in the width direction of the recording paper. You can only change the color for one line. Therefore, it is not possible to print print data in different colors for each digit. On the other hand, a one-month calendar is generally arranged in such a format that, when the standard day of the week column is Sunday, the dates corresponding to this Sunday are lined up in the leftmost vertical column, and the dates of that Sunday are displayed in red.
This allows you to distinguish it from other dates at a glance. Therefore, if a calendar in this format is printed using the small printing device of the electronic device mentioned above, it will not be possible to print only the Sunday date in the leftmost vertical column in red, and in the end each date on the calendar will be printed in red. Everything must be printed in either black or red. For this reason, it is not possible to distinguish the date in the standard day of the week column of Sunday from other dates and give it meaning, which is inconvenient for the user. On the other hand, calendars are not limited to the above-mentioned format; for example, as used in Germany, some calendars have a format in which Sunday dates are sequentially arranged in a horizontal line as a standard day of the week column. If this is done, the Sunday column will be in the same row, so even when using the above-mentioned small printing device, it will be possible to print by color by replacing the ribbon for each row. The present invention has been made in view of the above-mentioned circumstances, and when printing a calendar on recording paper using an electronic device having a conventional small printing device, it is possible to create an arrangement in which the dates in the standard day of the week column are particularly meaningful and easy to date. The purpose of the present invention is to provide a small electronic device having a calendar printing function capable of creating a calendar. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a small electronic calculator with a small printing device, and numeral 10 is a key input section, in which a number key 101 and a function key 102 for performing arithmetic operations, etc. are arranged. There is. In addition, the key input section 10 is configured to input year and month data in combination with numeric key operations, especially in order to obtain calendar information.

[Formula] Key 103 and print the calendar.

[Formula] key 104 is provided. The input information from the key input unit 10 is input to the CPU (Central Processing Unit) 11 (details of which will be described later), where calendar information calculation calculations and other various calculations are performed, and the calculation information and print commands output from there are printed. Section 12. The printing unit 12 includes a printing drum 121 rotatably driven by a motor (not shown) constituting a small printing device, a hammer 122 provided at a printing position opposite to this printing drum 121, and a drum attached to the rotating shaft of the printing drum 121 and described later. Drum rotational position detector 123 for detecting rotational angular position, printing drum 121
Recording paper 124 inserted between and hammer 122
It also has a printing ribbon 125 divided into two colors, for example, red and black, on the upper and lower sides, and a print controller 126 that supplies printing data and various printing control signals to this small printing device. Above printing drum 1
21 has 15 digits, and each digit has a "0" on the drum circumference.
~ "9" numeral type letters are arranged. The drum rotational position detector 123 detects the rotational angular position of the print drum 121 and supplies a drum rotational position detection signal as a print control signal to the print controller 126. Also, hammer 122
is equipped with 15 hammers corresponding to each digit of the print drum 121, and is selectively driven based on print data from the print controller 126 and the drum rotational position detection signal. Figure 2 shows the details of the CPU 11, and numeral 13 in the figure is a ROM (read-only memory) in which various microprograms, such as routines for processing four arithmetic operations, and calendar processing routines according to the present invention are incorporated. be. Also, 14 is above
This is a ROM address section to which the next address signal [NA] is applied from the ROM 13 and designates the address of each step of the microprogram stored in the ROM 13. The ROM 13 sends a row address designation signal [UA] to the RAM (random access memory) 15 that designates the row address of the register, which will be described later, and a column address (digit) of the register through the column address designation section 16. It outputs the column address designation signal [LA] respectively, and also outputs the code signal [CO] and instruction decoder 1.
Outputs an instruction signal [INS] for 7. The instruction decoder 17 outputs gate control signals A to C, a subtraction signal Sub, a judgment command J, a 1-digit, 2-digit carry signal, and a 1-digit carry down signal D according to the instruction signal [INS]. ~F, printing commands, ribbon exchange commands, etc. are sent from the respective output terminals.
The RAM 15 is composed of an X register for storing print data, a Y register for counting the date, a Z register for storing the last day of the current month, and a register for storing year and month data. As shown in FIG. 3, these registers store date data in the 1st to 15th digits and data such as flags in the _C1 to _C3 digits. The column address designation section 16 designates the column address of each register of the RAM 15 based on the column address designation signal [LA], and also specifies the 1-digit and 2-digit addresses output from the instruction decoder 17.
In accordance with the digit carry signals D and F or the single digit carry down signal F, the column address of the register to be carried up or down is sequentially specified to carry out the carry or carry down. The operands and operands addressed by the row address designation signal [UA] and column address designation signal [LA] are the gates to which the gate control signals A and B from the instruction decoder 17 are supplied. circuit 18,1
9 to the calculation determining section 20, and the calculation results are written to the RAM 15 again. The code signal [CO] is supplied to the arithmetic determination section 20 via the gate circuit 21 to which the gate control signal C from the instruction decoder 17 is supplied. This arithmetic judgment unit 20 receives a subtraction instruction Sub and a judgment instruction J from the instruction decoder 17.
is supplied to perform various calculations based on addition and subtraction, size comparisons, and determination of the presence or absence of data. The result of this determination is then supplied to the ROM address unit 14, where it is added to the next address signal [NA] output from the ROM 13 to designate the address of the next microinstruction. Furthermore, the print data stored in the register X of the RAM 15 is sent to the gate circuit 18.
The image is sent to the printing unit 12 via the printer 12 and printed. Next, an embodiment of the present invention will be described based on the above configuration.
An example of the operation of automatically printing a calendar for December 1978 will be explained with reference to the flowchart of FIG. 4 and the state diagram of FIG. 5. First, enter the year and month data for December 1978 by entering □1, □9, □7, □8 using the key input section 10.
,

[Formula] □1, □2,

By operating the keys in the order of [Formula], the year and month data is stored in the year and month data storage register of the RAM 15 in step _S1 shown in FIG. Next, press the calendar print execution key.

When [Formula] is operated, the calendar printing operation for December 1978 is automatically performed in the print format shown in Figure 6. As the calendar printing operation, first, in process _S2 , the year and month data stored in the year and month data storage register is written to the print register X according to the microinstruction from the ROM 13, and then
2, and under the print control of the print controller 126, the small printing device prints "197812" on the recording paper 124. Next, proceed to processing S ₃ , and based on the above year and month data, the large month, small month,
Or, the judgment of the year, etc. is performed in the arithmetic judgment unit 20, and the data of the last day of December is stored in 1 of the last day storage register Z.
~Written in the second digit. Therefore, the input data "12
The last day data "31" is 1 in Figure 5 a for "Month".
(However, in this example, the date is expressed using two digits of the register. Also, it is assumed that "0" is written in the blank part of the register state diagram in Figure 5.) As shown in the figure, the row address designation signal [UA] and the column address designation signal [LA] via the column address designation unit 16, and the last day storage registers Z 1 to 2
"31"("1" in the first digit and "3" in the second digit) is written in the digit, and the process proceeds to step S _4. In step S ₄ , the first day (first day) of the month is written based on the input month data. ) is calculated.This day of the week is calculated by calculating the number of days from the virtual reference date to the desired date, correcting this calculated number of days, and then dividing by "7".In other words, the above The virtual reference date is March 1, year 0, and the number of days from this reference date to day b, month c, year a, is (365.25 x a) + [30.6 x (b-3)] if b≧3. +c...If b<3, [365.25×(a-1)]+[30.6×(b+9)]+c
… (However, in both formulas, the year term is rounded down to the decimal point,
Month terms are rounded off to the nearest whole number). The day of the week of the above year/month is determined by correcting the above number of days by "+1" and dividing this by "7", assuming that Sunday to Saturday are represented by numbers from "0" to "6". Therefore, by setting a = 1978, b = 12, and c = 1, the number of days from the reference date "722740" is obtained by the formula,
When the number of days "722741" corrected by "+1" is divided by "7", a remainder "5" is obtained, and this remainder represents the day of the week. In other words, December 1, 1978 turns out to be a Friday. Then, this day of the week data "5" is specified by the row address designation signal [UA] and column address designation signal [LA] output from the ROM 13, and the first digit of the date count register Y and C ₂ digits, last day storage register Z
C written to ₁ digit. In the next process _S5 , the number of printing digits for the month is calculated according to the input year and month data. In other words, if the input year and month is February other than 〓,
4 digits if the day is Sunday; 6 digits if the input year is a major month and the first day is a Friday or Saturday; or 6 digits if the input year is a minor month and the first day is a Saturday; otherwise 5 digits It becomes a digit. Therefore, the number of digits in the above input year and month is 6 digits, and C ₂ of last day storage register Z.
"6" is written in the digit. In step _S6 , the code signal "7" for printing for one week from Sunday to Saturday is output from the ROM 13, and the code signal " ₇ " in FIG. It is written as shown in 1. The program then proceeds to the next step _S7 , where the first day's date to be printed on the first line is calculated, using the code signal "8" and the day of the week data stored in the first digit of the date count register Y. The first day's date is calculated by subtracting . Therefore, the code signal "8" and the content "5" of the first digit of the date count register Y are supplied to the arithmetic judgment section 20, and the subtraction of "8-5" is performed according to the subtraction instruction Sub of the instruction decoder 17. The subtraction result "3" is written to the first digit of the date count register Y. As a result, "3", the first day of the first row of calendar printing, is set. In the next step _S3 , in order to calculate the first day of the second line when printing the calendar, the data of the first digit of the date count register Y is transferred to the C ₁ digit of the print register X and temporarily stored. Ru. The process then proceeds to step _S9 , where a blanking code (represented by "B" for simplicity) is written into the 1st to 15th digits of the print register X. That is, the row address designation signal [UA] designates the print register The blanking code “B” supplied from the ROM 13 via
It is written in the ~15th digit as shown in 2 in Figure 5a. At the time of printing, the print controller 126 controls the digit in which the blanking code "B" is written so that no printing is performed. Next, the process advances to step _S10 , where the _C2 digit print digit number data of the last day storage register Z is transferred to the _C2 digit of the print register X and temporarily stored. This print register
C _{The 2} -digit content is used as a counter when counting the date of the predetermined reference day of the week column (the date of each printed line). In the next step _S11 , the last day memory register Z is
It is determined whether the C ₁ digit is "0" or not, and the contents of the C ₁ digit of the last day storage register Z are supplied to the arithmetic judgment unit 20 by the instruction of the ROM 13.
In accordance with the judgment instruction J output from the instruction decoder 17, it is judged whether the data is "0" or not. As shown in ₂ of FIG.
Then, address conversion is performed together with the next address signal [NA], and as a result, the process advances to step _S12 . In this step _S12 , as shown in the first column of Fig. 6, in order to print a "•" in a place where there is no date to be printed (before the first day), a "•" is placed in the first digit of the print register X.
A print code to be used for printing (in this example, the above-mentioned print code is represented by "." to simplify the explanation) is written as shown in 3 in FIG. 5a. Then, in the next step _S13 , the content of C ₂ digits of the print register
1'' is subtracted, and it is determined whether the subtraction result is 0. That is, each time dates are counted in the step described below, the contents of the C ₂ digits of the above print register is achieved. Therefore, the C _2- digit content "6" of the print register
A subtraction of "6-1" is performed according to the subtraction instruction Sub. The result of this subtraction "5" is again written to the _C2 digit of the print register X, and it is determined in accordance with the judgment instruction J whether or not the result of this subtraction is "0". At this point, since the result of the subtraction is not "0", the process advances to step _S14 . In step _S14 , the contents of the 1st to 14th digits of the print register X are carried up by one digit. That is, as the print register The digit to be carried up and the digit higher than the digit are specified in sequence for each digit, and the contents of the above-mentioned print register
A carry is performed by writing to the next higher digit through 0. When this carry operation is completed, the step
Proceeding to _S15 , blanking code "B" is written in the first digit of print register X. further steps
At _S16 , digits 1 to 13 of the print register X are carried up by two digits. This carry operation is a 2-digit carry signal E from the instruction decoder 17.
is applied to the column address designating section 16, thereby performing the same operation as the above step _S10 . In the next step _S17 , a comparison is made between the last day data of the month stored in the first and second digits of the last day storage register Z and the date data in the first and second digits of the date count register Y. That is, the contents of the first to second digits of the date counting register Y and the last day storage register Z, which are addressed by the ROM 13, are transferred to the arithmetic judgment section 20 to which the judgment instruction J is applied via the gate circuits 18 and 19. The data are supplied to each of the above and compared in size. As shown in Figure 5a-3, the first digit of the date counting register Y is "3" and the second digit is "0", and the date "3" is stored in the first and second digits of this register Y. Also, the first digit of the last date storage register Z is "1" and the second digit is "3", and the date "3" is stored in the first and second digits of this register Z. It is determined that "Z≧Y" and the process proceeds to step _S18 . Note that when "Z<Y", the details will be described later, but as shown in the last column of FIG. 6, processing is performed such that "." is printed after the last day. In step _S18 , the contents of the first and second digits of the date count register Y are written into the first and second digits of the print register X. Therefore, at this point, the first digit of the print register X becomes "3" and the second digit becomes "0", as shown in 4 of FIG. 5a. In the next step _S19 , the date is counted by adding "+7" to the 1st to 2nd digit contents of the date counting register Y. That is, the contents of 1 to 2 digits of the date count register Y and the code signal "7" output from the ROM 13 according to the command of the ROM 13.
is supplied to the arithmetic/judgment section 20, and the two are added. Since the date "3" is stored in the 1st and 2nd digits of today's count register Y, the addition result becomes "10" and is written again in the 1st and 2nd digits of the register Y, and the 4 It will be like this. Next step S ₂₀
The process proceeds to print register X by detecting whether the second digit of the print register
It is determined whether the date stored in the first to second digits is one-digit or two-digit. As shown at 4 in Figure 5a, the second digit of the print register X is currently "0" and the date stored in the print register X is one digit.
Proceed to the next step _S21 . In this step S ₂₁ ,
It is determined whether the day of the week of the month input in the above process _S1 is Friday or Saturday. That is, the above processing S ₄
Then, it is determined whether the day of the week data written in the C ₂ digit of the date count register Y is equal to either "5" or "6". If it is determined that they are equal, proceed to step _S22 , and print registers 3 to 3 of print register
A 15-digit shift is performed. If it is determined that they are not equal, the process proceeds to step _S23 , where a blanking code "B" is written in the second digit of the print register X. That is, in steps _S21 to _S23 , in the calendar printing format shown in FIG. 6, if the date in the second column from the left of the calendar is two digits, a space is provided between the first and second columns. If it is a single digit, no space is provided. In this example, as shown at 4 in FIG. 5a, the _C2 digit of the date count register Y is "5", so the process advances to step _S22 . In step _S22 , the instruction decoder 17 sends a carry down signal F to the column address designation section 16.
3 to 15 of print register X is applied.
The digits are downgraded, as shown at 5 in FIG. 5a. Steps _S13 to _S20 are then executed in the same manner as described above. At step S ₂₀ , the first digit of print register X is "0" and the second digit is "1".
is stored, "X ₂ ≠ 0" and the process directly proceeds to step _S13 . Thereafter, steps _S13 to _S20 are executed in a circular manner, and date data incremented by "+7" is sequentially written into the print register X as shown at 6 in FIG. 5a. In step _S13 , when the contents of the C ₂ digits of the print register X are sequentially incremented by ``1'' and become ``0'', writing of the date data to be printed is completed and the process proceeds to step _S24 . This step _S24 is for determining whether the print data written in the print register X is a Sunday. That is, the determination is made based on whether the content of the C ₁ digit of the date count register Y, which is a counter for printing for one week, is "7". Therefore, as shown in 5 of FIG. 5a, the above register Y is
Since _{the first} digit of C is "7", proceed to step _S25 . At step S ₂₅ , print register X is set at step S ₂₄ above.
Because the print data of is Sunday, print part 1
In order to print this print data in red in step 2, "1" is written in the C ₃ digit of the print register X.
The process then proceeds to _{step S25} , where the date data written in the 1st to 15th digits of the print register X as shown in 7 of FIG. 5a is printed. That is, first, print register
Since "1" is written in _{the third} digit of C, a ribbon exchange command is applied from the instruction decoder 17 to the printing section 12, and the red side of the ribbon 125 is selected. Next, the print data of the 1st to 15th digits of the print register
2 print controller 126.
The print controller 126 uses the drum rotation position detection signal output from the drum rotation position detector 123 in accordance with the print command applied from the instruction decoder 17 and the print data sent from the print register X to the hammer 122.
The date corresponding to Sunday is printed using the red ribbon as shown in the first line of FIG. 6 (the red printing is indicated by a dotted line).
When this printing operation is completed, the above print register
_{The third} digit C is cleared and the recording paper 124 is fed by one line, and the process advances to the next step _S27 . In step _S27 , since Sunday printing has been completed in process _S26 , the content of the C ₁ digit of the date count register Y is subtracted by "1", and it is determined whether the result of this subtraction is "0" or not. . Therefore, the content "7" of _{the first} digit C of the date count register Y is "-1"ed to become "6", so the process advances to the next step _S28 . This step _S28 is _C1 of last day storage register Z.
A determination is made as to whether the digit is "0". Here, if the content of this _C1 is not "0", the process proceeds to the next step _S29 , where "-1" is subtracted from the _C1 digit of this register Z, and the process proceeds to the next step _S30 . , and if the content of _C1 of the register Z is "0", the process directly proceeds to step _S30 . At this point, as shown in 7 of Figure 5a, the last day memory register Z is
Since "5" is stored in the C ₁ digit, the process proceeds to step S ₂₉ via step S ₂₈ , where it is set to "-1", and the C ₁ digit of this register Z becomes "4", and the process proceeds to step S ₃₀ . move on. This step _S30 is to calculate the first day date of each day of the week (print line), and the C ₁ digit content "3" of print register It is written in ₁ digit. Therefore, the next print line, that is, the first day of Monday, will be "4". The next step _S31 and step _S32 are steps for correcting the first day of each day of the week determined in step _S30 above so that it does not exceed "8". Therefore _, if _the content _{of C1} of the print register 7”
is reduced and the process proceeds to step _S33 . As shown at 8 in FIG. 5a, since C ₁ of the print register X is "4", it is determined in step _S31 that "C ₁ <8", and the process proceeds to the next step _S33 . Step _S33 and step _S34 are steps for setting the first day of a new day of the week. In step _S33 , "0" is written in the second digit of the date count register Y, and further in step _S34 , the setting in step _S30 is performed. The content of C ₁ digit of calculated print register X is 1 of register Y above.
It is written in the digit as shown in 8 of FIG. 5a. Then, in the same way as above, step S ₉ to step
S ₁₂ is executed and the print register X is set to 9 in Figure 5b.
Steps _S12 to _S22 are further executed, resulting in a state as shown in 10 of FIG. 5b. Thereafter, steps _S13 to _S20 are executed in a circular manner, and the date corresponding to Monday is written in the print register X as shown in 11 in FIG. 5b. Then, in step _S19 , the date contents of the 1st and 2nd digits of the date count register Y are incremented by ``+7'' to become the date ``32'' as shown in ₁₁ in FIG. ~Since the two-digit last day data is “31”, it is determined that “Z<Y” and the next step is
Proceed to S ₃₅ . At step S ₃₅ , print register X 2
A blanking code “B” is written in the digit,
Furthermore, in the next step _S12 , a print code for printing "." is written in the first digit of the print register X. That is, in step _S35 and step _S12 , "." is printed in the last column of the calendar shown in FIG. 6 where the date exceeds the last day. Therefore, the first and second digits of the print register X are as shown in 12 in FIG. 5b. And the next step
In _S13 , the _C2 digit of _the print register At this time, in step _S24 , the _first digit C of the date count register Y is "6", so the process directly proceeds to step _S26 . In step _S26 , the 1st to 15th digit print data of the print register X shown at 13 in FIG. 5b is printed. Here, since the C _3rd digit of print register It will be done. When this printing operation is completed, steps _S27 to _S34 are executed, and each register becomes like 14 in FIG. 5b. Below, each step is executed in the same way as the Monday printing described above, and the fifth
Printing for Tuesday is performed according to the contents of the print register X shown at 15 in FIG. b. The same procedure as above is also applied to printing on Wednesday and Thursday, as shown in Figure 5c.
Printing on Wednesday and Thursday is performed according to the contents of the print register X as shown in 16 and 17 of FIG. When Thursday's printing is completed, the process proceeds to step _S30 via steps _S27 to _S29 . In this step _S30 , the content "7" of _{the first} digit C of the print register X is incremented by "+1" to become "8". And step S ₃₁
Then, the content of C ₁ digit of the above print register X is "8"
Therefore, the process advances to step _S32 , and the content of this _one digit C is subtracted by "7" to become "1". Therefore, in the next step _S33 and step _S34 , the dates 1 to 2 of the date count register Y are changed as shown in 18 of FIG. 5c.
The date of the first day of Friday is set in the digit. Then step S ₉ , step S ₁₀ , and step S ₁₁
Proceed to. In step _S11 , the last day memory register Z is
Since the content of _{the first} digit C is "0" as shown at 18 in Figure 5c, the process advances to step _S18 . Furthermore, steps S ₁₉ to S ₂₂ and steps S ₁₃ to S ₁₇
After executing steps S ₁₈ to S ₂₀ and steps S ₁₃ to S ₁₇ are sequentially executed. Then, when all _of Friday's date data has been written to the print register X _{, the second} digit _of C of the print register Proceeding to step _S26 , Friday printing is performed in accordance with the print data of digits 1 to 15 of the print register X shown at 21 in FIG. 5c. The same procedure as described above is also carried out for Saturday, and printing for Saturday is carried out according to the contents of the print register X written as 22 in FIG. 5c. When Saturday's printing is finished, the step
Proceed to S ₂₇ . In step _S27 , date count register Y
Since the content of the _first digit of C is incremented by "-1" and becomes "0", the series of calendar printing operations described above are completed. In this way, as shown in the calendar state diagram in Figure 6, the date corresponding to Sunday is printed in red on the first line, and the date corresponding to each day of the week from Monday to Saturday is printed on the second to seventh lines. The date will be printed in black. In the above embodiment, the calendar is printed each time the year and month data is input, but for example, when only year data is input, the calendars for January to December are automatically printed consecutively, or the calendars for two years are printed consecutively. By inputting month data, calendars for the two years and months may be printed. In addition, the method of calculating calendar information based on the input year and month data and the form of calendar printing are not limited to the above embodiments.In short, the days of the week are taken in the vertical direction, and the dates corresponding to each day of the week are printed in the width direction of the recording paper for each day of the week. Just print it out. Further, although red and black ribbons are used in the above embodiment, for example, green and black ribbons may be used to distinguish Sundays from weekdays. Furthermore, the compact printing device is not limited to the above-mentioned embodiment, and it goes without saying that, for example, a thermal printer or the like may be used. In short, it is sufficient as long as it does not deviate from the gist of the present invention. As explained in detail above, according to the present invention, calendar information is calculated by specifying the year and month of the calendar to be printed, and this calendar information is printed sequentially in the width direction of the recording paper for each day of the week with the seven days of the week vertically. By printing, Sundays and other days of the week can be printed in different colors, making them very cheap to read and making it easy to create calendars as needed. In addition, it is possible to provide a calendar that is convenient for practical purposes, such as making it possible to create a calendar that conforms to the customs of countries such as Germany.

[Brief explanation of the drawing]

Figure 1 is an overall configuration diagram showing the configuration of an embodiment of the present invention, Figure 2 is a detailed circuit block diagram of the CPU in Figure 1, and Figure 3 is a diagram of the register configuration in the RAM in Figure 2. , FIG. 4 is a flowchart for explaining the operation of the same example, FIGS. 5a to 5c are register status diagrams accompanying the above flowchart, and FIG. 6 is a calendar printing status diagram. 10...Key input section, 101...Number key, 103
...DATE key, 104...CALE key, 11...
CPU, 12...Printing section, 125...Printing ribbon, 1
3...ROM, 14...ROM address section, 15...
RAM, 17... Instruction decoder, 2
0...Arithmetic judgment section.

Claims (1)

[Claims] 1. A specifying means for specifying the year and month of the calendar to be printed; a calculating means for calculating calendar information for the specified year and month for each day of the week based on preset reference date information; It has a calendar printing function characterized by being equipped with printing means that prints the dates for each day of the week in a horizontal line in the width direction of the recording paper and prints the dates of each week in vertical columns while sequentially feeding the recording paper. Small electronic equipment.