JP2002002032A - Character printing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a character printing method for printing with a correct character font at all times by switching the font automatically in two character code systems of different type. SOLUTION: Conversion of an original font code into a code of other system is requested, conversion of a new code into the code of an original code system is requested, and the original code is compared with a code converted once. If the original code matches the code converted once, it is printed, as it is, as a device font otherwise it is printed after switching is made to a previously designated image font thus realizing an arrangement for error free printing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character printing method, and more particularly to a character printing method in which fonts are automatically switched in two different character code systems and printing is always performed with a correct character font.

[0002]

2. Description of the Related Art Conventionally, in a printing system using a plurality of character systems having different total number of characters, a printer using a character system with a small total number of characters from a host device such as a large computer or a personal computer using a character system with a large total number of characters. In some cases, character designation information may be sent to a lower-level device such as. In such a case, there is no problem if the corresponding character exists, but if the corresponding character is not defined, the printing process is performed by replacing the character with an appropriate character.

[0003]

However, in the conventional character printing method, when a corresponding character is not defined, a printing process may be performed by replacing an erroneous character. The present invention has been made in view of the above problems, and provides a character printing method for automatically switching between use of a device font and an image font in two different character code systems and always printing in a correct character form.

[0004]

According to the first aspect of the present invention, there is provided a method for converting a character of an original code into a character of a new code of a different system, and a method of converting the character of the original code once with the character of the original code. A process of comparing the characters of the new code, a process of instructing printing of the converted characters of the new code when the characters of the original code match the characters of the converted new code once, This can be achieved by providing a character printing method for performing a process of instructing printing in place of a previously specified image font when characters of the new code once converted do not match.

[0005] Here, the original code system is, for example, a Unicode system, and the new code system is, for example, JIS.
It is a coding system. In the case of such a different code system, for example, there is a case where there is no corresponding character in the new code system, and when the above-mentioned original code and the new code once converted do not match, the print instruction is replaced with the image font specified in advance. The present invention provides a character printing method for performing the following processing.

With this configuration, even if there is no new code that matches the original code, erroneous characters are not printed. According to the second aspect of the present invention, there is provided a process for converting a character of an original code into a character of a new code of a different system, and a process of comparing the character of the original code with the character of the new code once converted. When the characters of the original code and the characters of the once converted new code match, a process of instructing printing of the characters of the converted new code, and the characters of the converted new code once converted to the characters of the original code If they do not match, it can be achieved by providing a character printing method for performing a process of instructing printing as an image font as it is.

In this embodiment, the original code system is, for example, a unicode system, and the new code system is, for example, JIS.
In the case of such a different code system, there is a case where the corresponding character does not exist in the new code system, and when the above original code does not match the new code once converted, the print instruction is directly issued as an image font. And print using the characters of the original code system.

With this configuration, even when there is no new code that matches the original code, erroneous printing is not performed. According to a third aspect of the present invention, in the first or second aspect of the invention, the original code is, for example, Unicode, and the new code is, for example, a JIS code.

According to a fourth aspect of the present invention, in the first or second aspect of the invention, the original code is, for example, a JIS code, and the new code is, for example, a unicode. The above claims 3 and 4 show specific examples of the original code system and the new code system.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a system configuration diagram according to the present embodiment. In FIG. 1, a printing application 2, an operating system 3, and a printer driver 4 are installed in a computer (personal computer) 1, and the computer 1 is connected to a printer device 5. Computer 1
The connection between the printer 5 and the printer 5 may be a connection via a network such as a LAN or a one-to-one direct connection.

The application 2 is software such as word processing software, and creates print data. And
This print data is sent to the printer driver 4 through the operating system 3, and the printer driver 4 performs the following code conversion processing. Hereinafter, the code conversion process will be described.

First, the prerequisites of the present invention will be described. A group of characters composed of a certain A code system (for example, unicode) and a character group of B (for example, JIS / shift-JIS)
) Is assumed to exist. In addition, host device (pc / os) (for example, personal computer)
Is assumed to handle characters in accordance with the above A, and it is assumed that a device (eg, a printing apparatus) handles characters in accordance with B. And the total number of characters is A>
B. Further, in the host device (pc / os), the code system A can be converted into the code system B of the new code system, and conversely, the code system B can be converted into the original code system A. <First Embodiment> FIG. 2 is a flowchart for explaining the processing operation of the present embodiment. First, it is assumed that a character (A code [Ca]) specified as a device font is to be printed as a code system B, which is a new code system.

In this case, first, the character ([C of the coding system A)
a)) (step S1), and the printer driver converts the character into a code system B (step S1).
2). By this processing, the character is changed to [C
a]. Next, code [Cb] is converted to the original coding system A ([Cb
']) (Step S3), and compares the code data before and after the conversion (step S4). Here, [Ca] = [C
a '] (YES in step S4), a print instruction is issued with the character code as it is (step S5). That is, a print instruction is given in the character code of the new code system B after the conversion.

On the other hand, if the above determination is [Ca] ≠ [Ca '] (NO in step S4), it is determined that the code cannot be printed by the printer device, and the printing is performed in place of the image font specified in advance. An instruction is given (step S6). For example, a print instruction using image font information similar to a device font previously held as data is issued. After that, a printing process is performed according to the above instruction (step S
7).

According to the above-described processing, the present embodiment can perform an accurate printing process without being conscious of the user even in a code system that cannot be used in the printer device. <Second Embodiment> Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 3 is a flowchart showing the processing operation of the second embodiment. First, also in this example, it is assumed that a certain character [C] (A code [Ca]) displayed at a higher rank is printed by replacing it with a device font despite being specified as an image font. .

As shown in FIG. 1, when a print instruction for a certain character [C] (A code [Ca]) is issued (step ST1), the printer driver inquires a code system B for a code corresponding to the character [C]. A conversion process is performed (step ST2).
Next, the code [Cb] is converted again to the original code of the A system.
[Ca '] (Step ST3). Here, if [Ca] = [Ca '], the image font is replaced with the device font, and a print instruction is performed with the corresponding character code (steps ST4 and S4).
T5). On the other hand, if [Ca] ≠ [Ca '], it is determined that the code cannot be printed by the printer device, and a print instruction is issued as an image font which is the original instruction (steps ST4 and ST6). Finally, a printing process is performed according to the above instruction (step ST7).

According to the above-described processing operation, in the present embodiment, when the image font is replaced with the device font and printing is performed, an accurate printing process can be performed similarly to the first embodiment. Third Embodiment Next, a third embodiment of the present invention will be described in detail with reference to the drawings.

FIGS. 4A and 4B are diagrams for explaining the third embodiment. FIG. 1A is a diagram for explaining the original code system, and shows the Unicode system. FIG. 2B is a diagram for explaining a new code system.
Indicates the code system. Also, as shown in FIG. 7A, the code “2882” in the Unicode system corresponds to the code “A344” in the JIS code system shown in FIG.
The code “9999” in the Unicode system corresponds to the code “FFFF” in the JIS code system. Also, the code “7823” and the code “817” of the Unicode system
No. 7 "does not have a corresponding JIS code system code.

Therefore, the code "2" of the Unicode system
882 ”is converted into a code“ A344 ”in the JIS code system by passing through a conversion function (not shown), and the codes“ 7823 ”and“ 817 ”in the Unicode system.
"7" is converted into a code "FFFF" in the JIS code system by passing through a conversion function. On the other hand, the code “A344” of the JIS code system is converted into a code “2882” of the Unicode system by passing a conversion function, and the code “FFFF” of the JIS code system is converted to a code “FFFF” of the Unicode system by passing a conversion function. 999
9 ".

Under the above premise, when the code "2882" shown in FIG. 7A is printed by a corresponding code on the printer side, the code "A344" of the JIS code system shown in FIG. Then, both characters are determined to be the same, and printing is performed using the corresponding new code “A344”.

The code "782" shown in FIG.
When "3" is printed by a corresponding code on the printer device side, the code "FFFF" is read out because there is no corresponding code in the JIS code system shown in FIG. Is performed. Also,
The same applies to the case of the code “8177” shown in FIG. 9A. Since the corresponding code does not exist on the printer device side, the code “FFFF” is read, and the printing process is performed without replacement, for example.

In the above case, similar to the above embodiment,
It is also possible to perform a printing process using image font information similar to a font previously stored as data.

[0024]

As described above in detail, according to the present invention, even when a different character code system is converted and used, the code can be converted without error and an accurate character can be automatically printed. .

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a system configuration according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a processing operation according to the first exemplary embodiment of the present invention.

FIG. 3 is a flowchart illustrating a processing operation according to a second embodiment of the present invention.

FIG. 4 is a view for explaining a third embodiment of the present invention;
(A) is a diagram for explaining a Unicode system, and (b) is a diagram for explaining a JIS code system.

[Explanation of symbols]

 1 Computer (Personal Computer) 2 Application 3 Operating System 4 Printer Driver 5 Printer Device ST Step

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C087 AB05 BA01 BA05 BA09 BC07 BD24 EA21 5B009 RA11 RC02 RC11 TA11 5B021 AA01 JJ05 JJ08

Claims (4)

[Claims] 1. a process of converting a character of an original code into a character of a new code of a different system; a process of comparing the character of the original code with the character of the new code once converted; A process of instructing printing of the converted characters of the new code when the characters of the converted new code match; and an image designated in advance when the characters of the original code do not match the characters of the converted new code. A process for instructing printing in place of a font; 2. A process of converting a character of an original code into a character of a new code of a different system; a process of comparing the character of the original code with the character of the new code once converted; When the characters of the converted new code match, a process of instructing the printing of the characters of the converted new code, and when the characters of the original code and the characters of the converted new code do not match, as the image font as it is A character printing method, comprising: performing a print instruction process; 3. The character printing method according to claim 1, wherein the original code is a Unicode code, and the new code is a JIS code. 4. The character printing method according to claim 1, wherein the original code is a JIS code, and the new code is a Unicode.