JPS62249749A - Character generating method - Google Patents

Abstract

PURPOSE:To make it possible to print high-quality characters with a minimum storage capacity, by storing all of a one-character amount of character data for high-quality-printing into an area for one character, and developing the character data into a printing buffer on a lot basis. CONSTITUTION:High-quality character data 21 are stored in a predetermined area in a character generator part 3. When a high-quality printing character code is transferred to from a controlling part 2, the controlling part calculates the first address FA in the character generator part 3, develops odd-numbered column character data 23 into a printing buffer memory 5, and stores MULLs into even-numbered columns. Next, with the first development of the character data, the data 23 are transferred to a recording part 6 to perform the first printing. Then, even-numbered column character data 22 are developed into the memory 5, while NULLs are stored into odd-numbered columns. With the second development of the character data, the data 22 are transferred to the recording part 6 to perform the second printing.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a recording device that develops character data stored in a character generator into a print buffer and performs printing based on the character data developed in the print buffer. In particular, it relates to a method of generating characters to be expanded into a print buffer.

[Conventional technology]

Conventionally, in this type of device, when printing high-quality characters, the character generator divides one character's character data and stores it in its own area, and the one character's character data stored in these areas is Printing was performed by sequentially reading data from a character generator and sequentially expanding it into print buffer memory in multiple batches.

FIGS. 5(a) to 5(C) are schematic diagrams for explaining the conventional high-quality character printing operation, and FIG. 5(a) is a schematic diagram for explaining the conventional high-quality character printing operation. 1, (b) shows the second character data of the character "A," and (C) shows the character output printed using the first and second character data.

As can be seen from these figures, in the past, in order to print high-quality characters, the character generator had to be
The character data of characters is divided and stored in a plurality of unit character storage areas as shown in (a) and (b) of the figure.
Expand this to a print buffer memory (not shown),
The data was transferred to a printing device to obtain the character output shown in FIG. 4(C).

[Problem that the invention seeks to solve]

Therefore, in order to print one character with high quality, it is necessary to divide the character data of one character into multiple unit character storage areas and store them in the character generator. In printing devices,
It is necessary to secure approximately twice the pattern storage area.
There is a problem in that the memory capacity of the character generator increases, leading to an increase in cost.

This invention was made in order to solve the above problems, and by storing all the character data of one character in one character area for high-quality printing, and dividing it into print buffers and expanding it. , with minimal memory capacity,
The purpose of this invention is to obtain a method for generating characters that enables printing of high-quality characters.

[Means for solving problems]

The character generation method according to the present invention stores high-quality character data constituting one character in the unit character storage area of a character generator in the same format as the character output format, and generates one high-quality character data stored in the character generator. Predetermined character string data in the data is divided into a plurality of times and expanded into the print buffer memory.

[Effect]

In this invention, predetermined character string data in high-quality character data stored in a unit character storage area of a character generator is read out in a plurality of times, and the read predetermined character string data is developed in a print buffer.

〔Example〕

FIG. 1 is a block diagram illustrating a character generation method according to an embodiment of the present invention. Reference numeral 1 denotes an interface section, which exchanges character code data from an external device (not shown). Reference numeral 2 denotes a control unit which interprets the character code sent through the interface unit 1 and creates a start address of the character generator unit 3 in which the recorded character pattern specified by the character code is stored. 4 is an operation display section; 5 is a print buffer memory; a character generator section 3 in which character patterns are stored in the print buffer memory 5 based on addresses generated by the control section 2;
Stores the character pattern of the recorded character from. The character generator section 3 stores high-quality character data constituting one character in a unit character storage area in the same format as the character output format. Reference numeral 6 denotes a print recording unit that prints the character pattern developed in the print buffer memory 5. The control section 2 controls the generation of characters according to a program shown in FIG. 4 stored in a ROM (not shown).

FIG. 2 is an external view showing an example of the configuration of the device shown in FIG. 1, and 11 is the main body of the device. Reference numeral 12 denotes a release lever, which releases the pressure on the cut sheet when aligning the cut sheet conveyed on a platen (not shown). 1
3 is a platen knob, which manually adjusts the transport position of the cut sheet; 14 is an operating section, which instructs the operation of the printing section.

Next, a character generation method according to the present invention will be explained with reference to FIGS. 3(a) to 3(C) and FIG. 4.

3(a) to CC) are schematic diagrams for explaining the character generation operation according to the present invention, and in the same figure (&), 2
1 is high-quality character data of the character rAJ, for example, and is stored in a predetermined area of the character generator 3. In FIG. 2B, even number column character data 22 is composed of even number columns of high quality character data 21 read out based on the address FA of the character generator 3, and odd number columns are blank. Same figure (
In C), 23 is odd-numbered column character data, which is composed of odd-numbered columns of high-quality character data 21 read based on the address FA of the character generator 3, and even-numbered columns are blank.

FIG. 4 is a flowchart for explaining an example of a character generation method according to the present invention. In addition, (1) to (
18) shows each step.

A character code sent from an external device is sent and received via the interface unit 1 (1) 0. Next, the control unit 2 determines whether the received and sent character code is a print start code 2)
, If No, determine whether the received and received character code is a multiple printing (high quality printing) character code 3), If No, proceed to normal character development processing 4), If YES, check whether the received or sent multiple times printing Calculate the start address FA in the character generator section 3 based on the character code (5) 0 Next, determine whether it is the first expansion 8), YES
Then, according to the start address FA, the odd-numbered column character data 23 of only the odd-numbered columns is developed into the print buffer memory 5, and NULL is stored in the even-numbered columns (7)0
Next, it is determined whether or not the character data has been stored (8). If the determination is YES, the processing continues 9).N.

If so, return to step (7).

On the other hand, if the judgment in step (6) is No, that is, in the case of the second printing, the even-column character data 22 of only the even-columns is developed in the print buffer memory 5 according to the start address FA, and the odd-column character data 22 is Store NULL in the column (10), then judge whether the character data has been stored (11); if no, return to step (10); if YES, expand the character data for the second time and store it in the print buffer. Expanded Figure 3 (b)
The even-numbered string character data 22 shown in is transferred to the print recording unit 6 for second printing (12), and step (3)
Return to

On the other hand, if the determination in step (2) is YES, it is then determined whether the transmitted and received character code is a multiple-time printing record code (13), and if NO, print recording processing is performed (14), and step Return to step (8), and if YES, determine whether this is the first printing record (15), if NO, return to step (14), and if YES, check the first character data developed in the print buffer. The odd-numbered string character data 23 shown in FIG. 3(C) is transferred to the print recording section 6 for first printing (1B), and the process returns to step (6).

In the above embodiment, a case was explained in which a high-quality character is formed by printing twice, but even in a printing device that cannot record continuous and dense printing, it is possible to form a high-quality character by printing multiple times. is also applicable. Furthermore, although the above embodiment describes the case where high-quality characters are developed in the print buffer memory 5 in the order of odd columns and even columns, the order may be in the order of even columns and odd columns. Even in devices that do not have the above, character data may be transferred directly if synchronization with the print recording section 6 can be established.

〔Effect of the invention〕

As explained above, the present invention stores high-quality character data constituting one character in the unit character storage area of a character generator in the same format as the character output format, and stores high-quality character data of one character stored in the character generator. The specified character string data inside is expanded to the print buffer memory multiple times, so
All the high-quality character data of one character can be stored in one character capacity of the character generator, the memory capacity of the character generator can be greatly reduced, and the device has an excellent advantage of being made cheaper.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram for explaining a character generation method showing an embodiment of the present invention; Fig. 2 is an external view showing an example of the configuration of the device shown in Fig. 1; Fig. 3(a) ~(C) is a schematic diagram illustrating the character generation operation according to the present invention,
FIG. 4 is a flowchart for explaining an example of the character generation force method according to the present invention, and FIGS.
C) is a schematic diagram illustrating a conventional high-quality character printing operation. In the figure, 1 is an interface section, 2 is a control section, 3 is a character generator section, 4 is an operation display section, 5 is a print buffer memory, 6 is a print recording section, 21 is high-quality character data, and 22 is an even column character Data 23 is odd number column character data. Figure 1 Figure 2 Hiroshi Figure 3 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In a recording device that develops character data stored in a character generator into a print buffer and performs printing based on the character data developed in the print buffer, a high-quality character that constitutes one character in a unit character storage area of the character generator is provided. Character data is stored in the same format as a character output format, and predetermined character string data in the one character of high-quality character data stored in the character generator is expanded into the print buffer memory in a plurality of times. How the character is generated.