JPS6158746A - Printing control system - Google Patents

Abstract

PURPOSE:To reduce a storing capacity of a letter pattern memory housing the letter pattern corresponding to a letter code by making a compound letter pattern corresponding to a compound letter code from a basic letter pattern corresponding to a basic letter code with a composition. CONSTITUTION:A compound letter code is outputted being separated into a plurarity of a basic letter code refering a table memory for separation 18, when a letter code for printing is judged as a compound letter code by a code judging section 13. A corresponding each letter pattern is read out from a letter pattern memory 19 against each basic letter code corresponding to the compound code being outputted from the judging section 13 by a pattern reading out section 14, and outputted to a pattern composition section 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a print control system 11 for creating a character pattern corresponding to a composite character code in a printer.

[Technical Background of the Invention and Its Problems] Conventionally, in a serial printer or the like, when a character code transmitted from a host computer is received, a character pattern corresponding to this character code is read from a character pattern memory. This read character pattern is output to the print drive section, and a printing operation according to this character pattern is performed.

By the way, character patterns corresponding to character codes on a one-to-one basis are stored in advance in the character pattern memory. Therefore, even in the case of a composite character pattern that can be created by combining a plurality of basic character patterns, it is stored in the character pattern memory. This compound character pattern corresponds to a compound character code, such as a German umlaut. If such a composite character pattern is stored in a character pattern memory, there is a problem in that a character pattern memory of 200 characters is required.

[Object of the Invention] The present invention has been made in view of the above points, and its object is to provide a character pattern that stores in advance a character pattern corresponding to a character code, even in the case of a printer that prints according to a composite character pattern. An object of the present invention is to provide a printing control method that can significantly reduce the storage capacity of a memory.

[Summary of the Invention] In the present invention, the printing character code sent from the host computer or the like is a basic character code, or a stamping means is provided. When the character code determining means determines that the printing character code is a composite character code, the composite character code is divided into a plurality of basic character codes based on a division table prepared in advance. The pattern synthesis means is
Each character pattern corresponding to each divided basic character code is read out from the character pattern memory and combined to create a composite character pattern. This composite character pattern is sent to the print driver, and a printing operation corresponding to the composite character code is executed.

With this configuration, there is no need to store character patterns corresponding to composite character codes in the character pattern memory in advance, and the storage capacity of the character pattern memory can be significantly reduced.
can be done.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. The figure is a block diagram showing the configuration of a print control section of a printer according to an embodiment. In the figure, a host computer 10
outputs the print character code to the print control unit 12 through the ink face 11.

As shown in the figure, the print control unit 12 includes a code determination unit 13,
It includes a pattern reading section 14, a pattern synthesizing section 15, and an image buffer 1G.

The code determination unit 13 determines whether the printing character code transmitted from the host computer 10 is a basic character code or a composite character code.
The determination is made based on the determination table No. 7. In the discrimination table memory 17, for example, a table consisting only of basic character codes is stored in advance. The code discrimination unit 13
When it is determined that the printing character code is a composite character code, the division table memory 18 is referred to and the composite character code is divided into a plurality of basic character codes and output. The division table memory 18 stores in advance a table consisting of basic character code groups corresponding to composite character codes.

The pattern succession unit 14 reads out a character pattern corresponding to the basic character code output from the code determination unit 13 from the character pattern memory 19 and outputs it to the image buffer 16. Further, the pattern reading section 14 reads each corresponding character pattern from the character pattern memory 19 for each basic character code corresponding to the composite character code output from the code discriminating section 13, and outputs it to the pattern synthesis section 15. . The pattern synthesis section 15 synthesizes each character pattern output from the pattern reading section 14 to create a character pattern corresponding to the above composite character code, and stores the character pattern in the image buffer 1.
Output to 6. The character pattern stored in the image buffer 16 is output to the printing section, and a printing operation corresponding to the above-mentioned printing character code is performed.

The operation of an embodiment of the print control section configured as described above will be described. First, the printing character code output from the host computer 10 is sent to the interface 1.
1 to the code discriminator 13. The code determination unit 13 determines whether the transmitted character code for printing is a basic character code or a composite character code by referring to the determination table. Here, the basic character code is a code corresponding to, for example, alphanumeric characters, and the composite character code is a code that is a combination of the alphanumeric characters and a special symbol (basic character code), such as a code indicating a German umlaut. When the code determination section 13 determines that the printing character code is a basic character code, the basic character code is output to the pattern succession section 14. The pattern reading section 14 reads out the character pattern corresponding to the basic character code from the character pattern memory 19 and outputs it to the image buffer 16. And image buff? 1
By outputting the character pattern from G to the printing section,
For example, alphanumeric characters etc. will be printed.

On the other hand, assume that the code determination unit 13 determines that the printing character code transmitted from the host computer 10 is a composite character code. In this case, the code discrimination unit 13 determines that the plurality of basic character codes that constitute the composite character code are
It is obtained by referring to the partitioning table. That is, the composite character code is divided into a plurality of basic character codes.

Each of the divided basic character codes is processed by the code discriminator 13
It is output to the pattern reading section 14 from there. The pattern reading section 14 reads out a plurality of character patterns corresponding to each basic character code from the character pattern memory 19 and outputs them to the pattern synthesis section 15. That is, for example, when the above-mentioned composite character code is a German umlaut, both the character pattern corresponding to the umlaut code and the character pattern corresponding to the alphabetic character are output from the character pattern memory 19 to the pattern synthesis section 15. Become. The pattern synthesis section 15 synthesizes a plurality of character patterns output from the pattern reading section 14 to create a compound character pattern corresponding to the compound character code. This composite character pattern is output to the image buffer 16. As a result, a composite character pattern corresponding to the composite character code is outputted from the image buffer 16 to the printing unit, and, for example, a German umlaut character is printed.

In this way, a composite character code sent from a host computer or the like is divided into a plurality of basic character codes.

The character patterns corresponding to these basic character codes are combined to create a composite character pattern corresponding to the composite character code. Then, by outputting the created composite character pattern to the printing unit, characters corresponding to the composite character code are printed. Therefore, it is not necessary to previously store a composite character pattern corresponding to a composite character code in a character pattern memory. Therefore, the character pattern memory only needs to store character patterns corresponding to basic character codes, and the storage capacity of the character pattern synthesis section can be significantly reduced.

Furthermore, by setting the corresponding basic character code group in the division table in advance, there is an advantage that a composite character pattern that is a combination of basic character patterns can be arbitrarily synthesized.

In the above embodiment, when the code discriminator 13 discriminates between a basic character code and a composite character code, it refers to the discrimination table in the discrimination table memory 17.

In this case, the division table in the division table memory 18 may be used instead of the determination table.

[Effects of the Invention] As detailed above, according to the present invention, when printing according to a composite character code, a composite character pattern corresponding to the composite character code is synthesized with a basic character pattern according to the basic character code. It can be created by

Therefore, there is no need to previously store composite character patterns corresponding to composite character codes, and the storage capacity of a character pattern memory that stores character patterns corresponding to character codes in advance can be significantly reduced. Further, it is possible to obtain the effect that a predetermined composite character pattern can be synthesized and created from basic character patterns relatively easily.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a print control section of a printer according to an embodiment of the present invention. 13... Code discrimination section, 14... Pattern reading section,
15... Pattern synthesis unit, 17... Table memory for discrimination, 1B... Table memory for division, 19...
Character pattern memory.

Claims (1)

[Claims] a receiving means for receiving a character code for printing transmitted from the outside; and a character code determining means for determining whether the character code for printing received by the receiving means is either a basic character code or a composite character code. , dividing means for dividing the composite character code into a plurality of basic character codes based on a pre-prepared division table when the printing character code is a composite character code according to the determination result of the character code determination means; A character pattern memory that stores basic character patterns corresponding to character codes in advance;
If the character code for printing is a basic character code according to the determination result of the character code determination means, the basic character pattern output means reads out the basic character pattern corresponding to the basic character code from the character pattern memory, and the dividing means a pattern synthesizing means for reading each character pattern corresponding to a plurality of basic character codes from the character pattern memory and synthesizing it to output a compound character pattern corresponding to the compound character code; and the pattern synthesizing means or the basic character pattern output. 1. A printing control system comprising a printing control means for controlling a printing operation based on a basic character pattern or a composite character pattern output from the means.