JP2550591B2 - Printer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a printing apparatus that selects a print pattern corresponding to input print data from a plurality of print patterns and performs printing.

[Prior Art] As a conventional printing apparatus, there is known a printing apparatus provided with one type of a print character pattern or a dot matrix print pattern as a print pattern for each input print data.

[Problems to be Solved by the Invention] A so-called proportional space printing is known in which the spacing between adjacent characters is made substantially uniform by determining the character spacing according to the character width of each character. . In such a printing process, some of the combinations of adjacent characters are such that it is more beautiful to print with a space between characters as shown in the printing example of FIG. There is a combination of. However, the printing apparatus configured as described above has only one type of print pattern for each print data, resulting in the print result shown in the print example of FIG. Therefore, there is a problem in that it is impossible to obtain a beautiful print result according to the combination of adjacent characters.

[Object of the Invention] The present invention has been made in view of the above problems, and an object of the present invention is to provide a printing apparatus capable of printing a specific combination of characters with a special printing pattern. is there.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, a memory that temporarily stores print data that is sequentially input,
A discriminating means for discriminating a predetermined combination of a plurality of characters by discriminating whether or not predetermined print data among the continuous print data stored in the memory is inputted in a predetermined order, and And a control unit for controlling the printing operation based on the determination result by the determination unit,
When the determination means determines that the predetermined print data has been input in the determined order, the control means performs special printing for a predetermined combination of a plurality of characters different from the normal print pattern. The feature is that the printing operation is controlled so that printing is performed according to a pattern.

[Operation] According to the above configuration, when the discriminating means discriminates that the predetermined print data has been input in the predetermined order, the control means controls the combination of a plurality of predetermined characters different from the normal print pattern. The printing operation is controlled so that printing is performed with a special printing pattern.

[Embodiment] An embodiment in which the present invention is embodied in an electronic typewriter having a character generator for printing input character data in a dot matrix printing pattern will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the electronic typewriter of this embodiment.

A CPU (central processing unit) 11 that manages all operations of this electronic typewriter, a keyboard 13, a ROM (read only memory) 15 in which a control program for operating the CPU 11 is stored in advance, and printing from the keyboard 13 RAM (random access memory) 17 for temporarily storing data
A character generator 19 in which a print pattern corresponding to print data from the keyboard 13 is stored in advance, and a print mechanism 21 that performs a print operation based on the print pattern read from the character generator 19 are connected. Further, it is more beautiful for the character generator 19 to store a normal print pattern and print with a special print pattern different from the normal print pattern, that is, a character pitch as shown in the print example of FIG. The printing patterns of characters in various combinations are also stored. Further, the CPU 11 internally has a register 23 indicating the storage position of print data to be discriminated in the RAM 17, and a counter for counting the number of loops in the program and thereby the number of consecutive inputs of "f".
25 and.

Next, the operation of the electronic typewriter having the above configuration will be described.

The print data input to the keyboard 13 is stored in the storage position indicated by the register 23 in the RAM 17 via the CPU 11, and the contents of the register 23 are updated accordingly. Then, when the operator inputs a command to start the printing operation, the CPU 11 inputs predetermined print data in a predetermined order as shown in the flowchart of FIG. 2 according to the control program in the ROM 15. The operation of determining whether or not it is performed is performed. That is, the value of the counter 25 is reset in step S1, and it is determined in step S2 whether or not the content of the memory indicated by the register 23 is "T". If the determination result is NO, the process proceeds to step S3, and if YES, the process proceeds to step S4. In step S4, the value of the register 23 is incremented by 1, and in the following step S5, it is judged whether or not the content of the memory indicated by the register 23 is "i". When the determined result is YES, the process proceeds to step S6, and the character generator 19
Special print pattern in The data is output to the printing mechanism 21 so as to print, and the process ends. If the determination result in step S5 is NO, the process moves to step S7, and a normal print pattern corresponding to the print data indicated by the register 23, that is, the character data "T" and the print data following the data "T" Is read from the character generator 19 and output to the printing mechanism 21 for normal printing, and the process is terminated.

In step S3, it is determined whether or not the content of the memory indicated by the register 23 is "f". If NO, the process proceeds to step S8. If the value of the counter 25 is 2, the character generator 19 Special printing pattern In this case, the print pattern corresponding to the print data indicated by the register 23 is read from the character generator 19 and output to the print mechanism 21 for normal printing, and the process is terminated. If the determination result is YES, the process proceeds to step S9,
The values of the register 23 and the counter 25 are incremented by 1, and in the following step S10, it is determined whether or not the content of the memory indicated by the register 23 is "i". If the determination result is YES, step S
Moving to 11, when the value of the counter 25 is 1, the special print pattern in the character generator 19 In other cases, the print pattern corresponding to the print data indicated by the register 23 is read from the character generator 19 and output to the print mechanism 21 so as to perform normal printing, and the process is terminated. If the determination result is NO, step S1
Move to 2 and the content of the memory indicated by register 23 is "i"
It is determined whether or not. If the determination result is NO, step
Return to S3. If YES, move to step S13. If the value of counter 25 is 1, special print pattern in character generator 19. When 2 In other cases, the print pattern corresponding to the print data indicated by the register 23 is read from the character generator 19 and output to the print mechanism 21 to perform normal print and output to the print mechanism 21 to perform processing. Then, the process ends.

The printing mechanism 21 performs printing with a normal printing pattern or a special printing pattern based on the data output by the CPU 11.

By the above operation, when the predetermined print data among the input print data is input in the determined order,
The CPU 11 discriminates this and prints with a special print pattern different from the normal print pattern, so that a more beautiful print result than the conventional typewriter can be obtained.

In the above embodiment, when the predetermined print data was input in the determined order, the special print pattern was always used for printing. However, there is a mode in which the special print pattern can be cancelled. A mode switching means may be provided so that printing can be performed so that the operator can select a desired printing pattern.

In the above embodiment, the
The electronic typewriter having a generator and capable of printing a dot matrix character pattern has been used, but it is also possible to perform it on another typewriter, for example, a typewriter having a type print pattern such as a daisy wheel. . That is, in such a typewriter, the type print pattern is provided with the special print pattern as in the above embodiment, and the type of the special print pattern or the normal print pattern is based on the determination result of the combination of the adjacent characters. Needless to say, it may be configured to be selected, and can also be implemented in a printing device of various other printing methods.

[Effects of the Invention] As described in detail above, according to the present invention, when the predetermined print data among the input print data is input in the predetermined order, the determining unit determines the predetermined print data, Since it is possible to print with a special print pattern different from the print pattern for a predetermined combination of a plurality of characters, it is possible to obtain a more beautiful print result than the normal print pattern.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a block diagram showing the configuration of an electronic typewriter, and FIG. 2 is a flow chart showing the operation of the typewriter. FIG. 3 is a diagram showing a printing example by the printing device of the present invention, and FIG. 4 is a diagram showing a printing example by the conventional printing device. In the figure, 11 is CPU, 13 is keyboard, 15 is ROM, 17 is RAM, 2
1 is a printing mechanism.

Claims (1)

(57) [Claims] 1. A memory for temporarily storing print data that is sequentially input, and a determination is made as to whether or not predetermined print data among the continuous print data stored in the memory has been input in a predetermined order. By so doing, it comprises a discriminating means for discriminating a predetermined combination of a plurality of characters, and a control means for controlling the printing operation based on the discrimination result by the discriminating means. When it is determined that the specified print data has been input in a predetermined order, the printing operation is performed so that printing is performed using a special print pattern for a predetermined combination of multiple characters that differs from the normal print pattern. A printing device characterized by controlling the.