KR910000769B1 - Method for saving print ribbon in a printer - Google Patents

Abstract

The method comprises a first step for imspecting movement of carriage, for moving carriage and printing a first bold, for feeding ribbon, and for printing a second bold after driving carriage half step in the opposite direction, a second step for examin next bold phoneme so that the next phoneme strices the used area of ribbon, a third step for moving carriage to the position of first phoneme when phoneme to be printed is horizontal middle or last phonme and for going to the first step, and a fourth step for moving ribbon and carriage to first phoneme position when phoneme to be printed is vertical middle phonme and for going back to the first step.

Description

Ribbon Saving and Printing Speed Improvement Method for Hangul Bold Mode Printing of Daisy-Wheel Electronic Typewriter

1 is a conventional Hangul bold printing method.

2 is a system diagram for carrying out the present invention.

3 is a flow chart of the present invention.

4 is a Korean type distinction diagram.

5 is a ribbon feeding comparison of Hangul bold printing.

* Explanation of symbols for main parts of the drawings

10: microprocessor 20: keyboard

30: permanent storage 40: temporary storage

50: daisy motor 60: ribbon motor

70: modified ribbon drive unit 80: carriage motor

90: hammer drive unit 100: index motor

The present invention relates to a method of Hangul printing of an electronic typewriter, and more particularly, to a method of saving consumption of a modified ribbon and a ribbon and increasing printing speed according to each type of Hangul bold (BOLD) printing.

In the case of Korean printing, office equipment such as typewriter executes arguments in the form of gathering. do. BOLD PRINT is one of the text highlighting methods, and the argument type is refactored with the same letter back to the highlighted letter when emphasizing any letter. The printed bold letters are the same type up and down but left and right In addition, the printed form is doubled.

In the conventional daisy-wheel electronic typewriter, the bold printing method according to each Hangul type will be described with reference to FIG. After analyzing the completed Hangul data, read the first letter (cho) through (A)-(D) to drive the carriage motor by the step according to the letter of the type, select the daisy wheel, and then enter the first bold. Print. After the first ribbon feeding for the second bold print of the initial stage after the first ribbon feeding the carriage half-step drive and then performing the second bold print, and the next phoneme through (H) (I) Perform secondary ribbon feeding for printing and move the carriage to its original position.

Thereafter, in step (K), the next element stored in the write-in state is read, and the lead is checked to determine whether the element requires moving of the carriage, which moves the carriage during the horizontal neutral factor of the Hangul element type. To check it. After inspecting the presence of the carriage and operating the carriage according to each phoneme type, as described above, through the steps (D)-(I), the daisy wheel for the phoneme is again selected, and the first and second bold factors are selected. Perform.

After that, in the step (J), it is checked whether the Hangul argument of the write-in type is finished. If the argument is completed, the routine is terminated, and if there is data to be printed next, after reading the next phoneme data in the (K) step ( Returning to step B), the above routine is repeated. Therefore, as in the flow of FIG. 1, in the conventional electronic typewriter, the Hangul bold printing method uses the same printing method according to each phoneme of Hangul, thereby driving the carriage motor and the ribbon motor at every phoneme printing, This resulted in a decrease in speed, and the ribbon was fed at every elemental print as shown in FIG.

Accordingly, an object of the present invention is to save the ribbon and the correction ribbon consumption by skipping the drive of the ribbon motor when there is no cross-talk interference in the bold print of the grapheme data according to the configuration of the Hangul, and to improve the printing speed by reducing the number of motor drive It is to provide a way to.

Hereinafter, the present invention will be described in detail with reference to the drawings.

2 is a system diagram for carrying out the present invention, which includes a microprocessor 10 for controlling a system, a keyboard 20 serving as a key data input unit, a system operating program, and a permanent storage unit containing a program of the present invention. 30, a temporary storage unit 40 for temporarily storing key data, a daisy motor 50 for selecting a daisy wheel of the corresponding element under the control of the microprocessor 10, and the microprocessor 10 of the microprocessor 10; A ribbon motor 60 for supplying a ribbon under control, a crystal ribbon driver 70 for supplying a correction ribbon under control of the microprocessor 10, and a carriage motor for driving a carriage under control of the microprocessor 10; 80, a hammer driver 90 for driving the printing hammer under the control of the microprocessor 10, and an index motor 100 for driving the platen under the control of the microprocessor 10; It is sex.

Figure 3 is a flow chart of the present invention, when the Hangul bold print in the complete writing state checks the carriage movement of the print element, the first bold print after moving the carriage during the transfer, the ribbon is half-stepped after feeding the ribbon A first process of driving the second bold by reverse driving, a second process of reading the next bold factor element after performing the first process to check whether there is any element interference on the ribbon, and the element interference on the ribbon in the second process A third process of moving the carriage to the bold printing position of the previous element and returning to the first process without the horizontal neutral or neutral temporary ribbon supply without Supplying and moving the carriage to the bold print position of the previous element and returning to the first process.

FIG. 4 shows the configuration of the Hangul, which is divided into six types according to the phoneme configuration, and FIG. 5 shows the number of ribbon feedings according to each form of the Hangul.

Based on the above-described configuration, the present invention will be described in detail with reference to FIGS. 2, 3, 4, and 5.

The microprocessor 10 periodically scans the keyboard 20 to check key input, and analyzes the corresponding key data upon Korean key input and temporarily stores them in a state of writing according to each type according to a program in the permanent memory 30. The printing is performed by reading one character of data stored in the section 40 and stored in the temporary storage section 40 upon completion of writing. When printing, the microprocessor 10 controls driving of each motor. The carriage motor 80 drives the position of the data to be printed, and the daisy motor 50 drives the print wheel of the grapheme data to be printed. After driving the hammer solenoid of the hammer drive unit 90 to execute the print. After printing, the next graphing data is analyzed and ribbon feeding is performed to operate the ribbon motor 60 to feed the ribbon and to prepare for the next printing. When correcting the printed data, the correction ribbon driving unit 70 is driven to correct the ribbon. After feeding the (Correction Ribbon), the carriage motor 80 is operated in the reverse order of printing and the carriage is moved from right to left to correct the corresponding factor. In addition, when feeding the line to drive the platen through the index motor 100 to convey the paper up and down.

The form configuration of the Hangul is composed of six forms according to the fourth letter (a) according to the completed one-letter phoneme form, and the moving step of the carriage according to each form is different. That is, since the print center positions of the initial and horizontal neutrals are the same according to the configuration of the Hangul at printing, the carriage is not necessary, and the print center positions of the four types of initial, horizontal neutral and longitudinal are also the same, thereby driving the carriage motor 80. In the Hangeul form, the initial and horizontal neutrals and the four types of initial, horizontal neutrals and longitudinals can be confirmed that the phonemes do not overlap each other. In the above case, when printing Hangul of each type on the ribbon, if there is no interference of the phoneme, other phonemes may be printed on the area where the printed ribbon remains. It can be seen that. In addition, the input through the keyboard 20 is not printed in order according to the characteristics of the Hangul configuration, but in accordance with the moving step of the carriage, the first priority is the factor of priority, horizontal neutral, vertical and vertical neutral in order.

According to the present invention, when there is no interference between characters according to the type of Hangul written in bold printing, the flow proceeds as follows in a manner of improving ribbon saving and printing speed without ribbon feeding. After reading the first phoneme data (initial) among the 1-character data in the Hangul writing completion state in the temporary storage unit 40, it is checked whether the carriage movement is necessary in step (b). Since the carriage position must be moved, the carriage motor 80 is moved to the initial position to move the carriage by the corresponding step. In addition, if the next phoneme data is read in step (i) after initial or random autonomous printing, the carriage is moved to the corresponding position in the final and vertical neutral dates, and the horizontal neutral and four types of final dates do not move the carriage, (d) In operation step, the daisy motor 50 is operated to select the corresponding element and drive the hammer driver 90 to execute the first bold factor (hammer 1 stroke) for applying the bold character. After performing step (d), step (e) (f) (g) is performed for the second factor to sequentially drive the ribbon motor 60 to feed the ribbon first, and move the carriage half-step. 50) and the hammer driver 90 to reselect the corresponding element selected in step (d) and execute the second bold factor (hammer 2 stroke). Therefore, it can be seen that the bold factor is performed by moving the carriage half-step and factoring the phoneme twice (hammer 1 stroke and hammer 2 stroke).

After performing step (g), it is checked whether or not the Bold factor completion of one character of Hangul written in step (h) is completed, and when the collected phoneme data is stored in the temporary storage unit 40 (one writing character During the printing of minutes, the next phoneme data is prepared from the temporary storage unit 40 in step (i), and then it is checked whether the phoneme data read in step (j) is vertical neutral. In this case, since the vertical neutrality may cause printing on the ribbon and printing on the ribbon, the ribbon may not be printed on the remaining portion of the ribbon, and thus, the ribbon motor is driven in step (k) to feed the ribbon. In the case where the next element to be bold printed is horizontal neutral, the ribbon is not fed because there is no printed initial and elementary interference and the horizontal neutral can be printed on the rest of the ribbon. In addition, the carriage moves even when the phoneme data read in step (i) is final, but the ribbon is not fed because the initial or horizontal neutrality and the finality do not have autonomous interference, which can print the finality on the rest of the ribbon.

When the ribbon is fed in step (j) or the ribbon is fed in step (k), the carriage motor 80 must be moved to the original position of the previous element bold-printed by proceeding to step (I). After driving, move to the original carriage original position of the phoneme and proceed to step (b).

At this time, if the printing of the Hangul 1 character of the write-in stored in the temporary memory unit 40 is completed in the step (h), the process proceeds to the (m) step and feeds the ribbon for the printing of the next character. End the print and return the carriage as in step (l).

The above process will be described in detail with an example of the six types of "photo".

First, in step (a), the first elementary element "a" is read, and the carriage motor 80, the daisy motor 50, and the ribbon motor 60 are controlled through the steps (b)-(g). Is the first and second bold factors. Thereafter, in step (i), the next bold factor phoneme is the horizontal neutral "ㅗ", and the phoneme read in step (j) is the vertical neutral, and the elemental interference with the pre-printed "a" that the factor phoneme was previously printed is checked on the ribbon. do. At this time, the horizontal neutral "ㅗ" is printed at the same position as the initial "a" and there is no interference on the ribbon, so the ribbon motor 60 proceeds to step (l) without driving the motor to the initial printing element "first" position. After moving the carriage, the process proceeds to step (b).

Then, in step (b), it is checked whether the carriage needs to be moved. Since the positions of the bold-printed initial "a" and the horizontal neutral "ㅗ" are the same, steps (d)-(g) are performed without the carriage motor 80 being driven. Carry out bold printing of the horizontal neutral "ㅗ". Then, in step (i), the next factor is called the final character "o", and in step (j) it is checked whether there is horizontal neutral "ㅗ" and phoneme interference on the ribbon. At this time, since the final "o" is also the initial "a" and the horizontal neutral "중" and there is no interfering on the ribbon, proceed to step (l) without driving the ribbon motor 60 to drive the carriage motor 80 to the previous bold factor Reposition the carriage to the position of the horizontal neutral "ㅗ" which is self-extinguishing.

Then, in step (b), it is checked whether the carriage needs to be moved again. Since the printing positions of the horizontal neutral "로" and the final "o" are not the same, the carriage is moved to the final "o" position in step (c). Subsequent steps (d)-(g) are followed to print the final "o" for the first and second bold factors. Then, in step (i), the next element, vertical neutral "ㅏ", is read again. Since the vertical neutral "ㅏ" occurs on the ribbon, initial interference "A", horizontal neutral "ㅗ", and final "O" and autonomous interference occur, In step k), the ribbon motor 60 is driven to feed the ribbon. Subsequently, in step (l), the carriage motor 80 is driven to move the carriage to the position of the last factor "o", which is the previous printing element.

Then, in step (b), it is checked again whether the carriage movement is necessary. Since the vertical position "o" and the vertical neutral "ㅏ" and the printing position are not the same, in step (c), the carriage motor 80 is driven to operate the vertical neutral "ㅏ". Move the carriage to the position of. Subsequently, steps (d)-(g) are performed to print the first and second bold values of the vertical neutral “k”.

At this time, the step (h) recognizes the completion of the bold printing of the first letter of the Hangul, and performs the step (m) (n) for the printing of the next letter and then moves the carriage to the next letter position after the ribbon drive.

Therefore, as can be seen in the above process, after analyzing the shape of the element to be printed after the second bold factor, as shown in the Hangul 2 form-6 form of FIG. By not driving the ribbon motor, the ribbon can be saved and the number of motors driven can be shortened to improve the printing speed.

As described above, the number of feeding of the ribbon is reduced according to each type of Hangul printing, and the printing factor of the printing on the ribbon is reduced, which reduces the consumption of ribbon. Or when only one letter of Korean characters is bolded, the ribbon or correction ribbon can be operated to save the motor drive time, thereby improving printing speed.

Claims (1)

In the Hangul bold printing method of the daisy-type electronic typewriter, the Hangul bold printing method of the writing completion state is checked for the carriage movement of the corresponding factor element, the first bold printing after the carriage is moved, the ribbon is fed after the carriage is moved. A first step of half-step reverse driving to print the second bold, and a second step of checking whether there is an interference on the ribbon by reading the next bold factor element after performing the first step, and the ribbon image in the second step. A third process of moving the carriage to the bold printing position of the previous element and returning to the first process without the horizontal neutral or final temporary ribbon supply without the element interference at the second stage, and the vertical neutral with the element interference on the ribbon at the second process The fourth step of supplying the temporary ribbon, moving the carriage to the bold print position of the previous element, and returning to the first step is carried out between the elements on the ribbon. The ribbon saving and printing speed improvement method of Hangul bold printing, characterized in that it operates to improve the printing speed by the ribbon saving and motor driving frequency reduction by driving the ribbon motor only when the horizontal neutral generation.

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