JPS6137441A - High-speed printing processing system of dot printer - Google Patents

Abstract

PURPOSE:To improve the quality of printing of dot printing by executing high- speed printing processing by a high-speed printing processing algorithm by selecting algorithm select means on the basis of a printing character code and a vertical writing/lateral writing discriminating signal. CONSTITUTION:Printing data containing a Chinese character code, etc. are transmitted over an interface 10, and printing data are transferred to a Chinese- character reading section 11. In the Chinese-character reading section 11, a Chinese-character dot pattern P corresponding to a printing Chinese-character code C for printing data is read from a Chinese-character generator 12, and made to contain in a reading buffer 13 on a high-speed printing mode. The Chinese-character reading section 11 outputs the printing Chinese-character code C, a vertical writing/lateral writing discriminating signal J and a high-speed printing mode signal H to an algorithm selecting section 15. A selected speeding- up processing section 16 or speeding-up processing section 17 executes high-speed printing processing to the Chinese-character dot pattern P of the reading buffer 13 on the basis of the printing Chinese-character code C and the vertical writing/ lateral writing discriminating signal J in the algorithm selecting section 15.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a high-speed printing processing method for a dot printer used, for example, when printing Chinese characters at high speed.

[Technical Background of the Invention and its Problems] Conventionally, when printing Chinese characters at high speed in a dot printer, a method has been developed in which adjacent dots of a printed dot pattern are deleted to print dots. However, if such a high-speed printing method is simply applied to all Kanji dot printing, the printing quality may deteriorate significantly. For example, in the Mincho typeface kanji pattern, the thickness of the vertical lines and the thickness of the horizontal lines are different. For this reason, if you use the above-mentioned high-speed printing method applied to horizontal writing and delete adjacent dots for vertically written Mincho kanji characters whose character direction has been rotated by 90 degrees, the printed dot pattern will change. will be greatly damaged.

[Object of the Invention] In view of the above points, the present invention aims to provide optimal high-speed printing according to the type of printed characters such as kanji and the vertical/horizontal printing mode. An object of the present invention is to provide a high-speed printing processing method for a dot printer that can improve the printing quality of dot printing by executing processing.

[Summary of the Invention 1] In the present invention, a print processing means is provided which outputs a print character code, dot pattern data, and a vertical/horizontal writing discrimination signal based on print data supplied from an external device. The above print character code output from this print data processing means, El! /Based on the horizontal writing discrimination signal, the algorithm selection means selects a high-speed printing processing algorithm. With this algorithm selection means, the high-speed printing processing means is configured to perform high-speed printing processing on the dot pattern data output from the printing data processing means using an optimal high-speed printing processing algorithm.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure shows a configuration according to the first embodiment.

It is a lock diagram. In Figure 1, the interface (
1/F) 10 receives print data transmitted from an external device such as a host computer, and transfers it to the kanji successive unit 11. The kanji reading unit 11 reads kanji dora 1 to pattern P from a kanji generator (ROM) 12 based on the print data.
is read out and stored in the read buffer 13. At this time, if the high-speed printing processing mode is not set, the kanji dot pattern P is stored in the image buffer 14. Further, the kanji reading section 11 outputs the printing kanji code C9 vertical/horizontal writing determination signal J and high-speed printing mode signal H to the algorithm selection section 15 based on the print data.

The algorithm selection section 15 selects a first high-speed processing section 16 or a second high-speed processing section that executes high-speed printing processing using an appropriate high-speed processing algorithm based on the supplied printing kanji code C and vertical writing/horizontal writing discrimination signal J. One of the speed-up processing units 17 is selected. Each of the speed-up processing units 16 and 17 has a read buffer 13.
A high-speed printing process is performed on the kanji dot pattern P stored in the kanji character dot pattern P, and the resulting print dot data D is output to the image buffer 14.

In such a configuration, the operation according to one embodiment will be explained. First, print data including kanji codes etc. is sent from an external device such as a host computer to the interface 10.
sent to. From this interface 10, print data is transferred to a kanji reading section 11. In the kanji reading section 11, a kanji dot pattern P corresponding to the printed kanji code C of the print data is read out from the kanji generator 12, and stored in the readout buffer 13 in the case of high-speed printing mode. At this time, the kanji reading unit 11 directly outputs the kanji dot pattern P to the image buffer 114 if it is not in the high-speed printing mode (normally, it is verified based on the received print data).

Furthermore, in the case of the high-speed printing mode, the kanji reading section 11 outputs the printing kanji code C1, the vertical/horizontal writing discrimination signal J, and the high-speed printing mode signal H to the algorithm selection section 15. In the algorithm selection section 15, the printed kanji code C and vertical writing/
The first one has an appropriate high-speed printing processing algorithm based on the horizontal writing discrimination signal J.

A selection signal for selecting the high-speed processing section 1G or the second high-speed processing section 11 is output.

The high-speed processing section 1G or the high-speed processing section 17 selected by the selection operation of the algorithm selection means 5 executes high-speed printing processing on the kanji dot pattern P in the reading buffer 13. For example, the speed-up processing unit 16 executes a process of deleting adjacent dots in the printing direction with respect to the kanji dot pattern P, so that when the kanji pattern is printed from dora 1 to dot 1 with @ writing, the print quality does not deteriorate significantly. This is for high-speed printing processing of Kanji code C. On the other hand, the speed-up processing unit 17 executes the j!
A process is executed to delete dots other than the two consecutive rows of dot patterns. This processing is for high-speed printing processing of the printed Kanji code C, in which the printing quality does not deteriorate significantly when the Kanji pattern is printed in dots in vertical writing.

In this way, the printed dot data D after being subjected to high-speed printing processing is stored in the image buffer 114 and sent to a printing drive section that does not receive oral data. As a result, a kanji dot pattern in which predetermined dots are deleted from a normal dot pattern is printed in dots at high speed. In this case, as above, print kanji code C and vertical writing/
Since appropriate high-speed printing processing is executed based on the horizontal writing discrimination signal J, it is possible to obtain dot-printed Chinese characters with relatively high printing quality. Although the above-mentioned FIG. 1 describes the case of high-speed printing processing for Chinese characters, the present invention is not limited to this, and it goes without saying that other characters may be used.

FIG. 2 shows a configuration according to a second embodiment of the present invention, and mainly shows the operations of the algorithm selection section 15 and the speed-up processing sections 16 and 17 in the case of the first embodiment.
This is the configuration when executed by U20. In this case, the processing program and kanji dot pattern Pt necessary for high-speed printing processing are stored in the tROM 21 in advance. Further, the input/output port (Ilo) 22 corresponds to the interface 10 in FIG.

The CPU 20 executes high-speed printing processing based on the processing program stored in the ROM 21, and stores the printed dot data after the processing in the image buffer 14.

In this case, the CPU 20 has a function corresponding to the algorithm selection section 15 in FIG. 1, and executes appropriate high-speed printing processing according to the printing kanji code and the vertical writing/horizontal writing discrimination signal. The RAM 23 is a memory that temporarily stores variables and the like necessary when the CPU 20 executes processing. Further, the data transfer control section 24 is a circuit for transferring the print dot I-data of the image buffer 14 to the print drive section 25.

Even in the case of such a configuration, the first
The same effects as in the embodiment can be obtained.

[Effects of the Invention] As described in detail above, according to the present invention, an optimal high-speed printing process can be executed in a dot printer according to the type of printed characters such as Chinese characters and the vertical/horizontal printing mode. Therefore, even in the case of high-speed dot printing, it is possible to always achieve dot printing with relatively excellent print quality.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a configuration according to a first embodiment of the present invention, and FIG. 2 is a block diagram showing a configuration according to a second embodiment of the present invention. 11... Kanji reading section, 13... Reading buffer, 15
．． ...Algorithm selection section, 16.17... Speed-up processing section.

Claims (1)

[Claims] a print processing means for outputting a print character code, dot pattern data, and a vertical writing/horizontal writing discrimination signal based on print data supplied from an external device; and the above-mentioned printing character code and vertical writing output from the print data processing means. /Algorithm selection means for selecting a high-speed printing processing algorithm based on the horizontal writing discrimination signal; and high-speed printing for the dot pattern data output from the printing data processing means using the high-speed printing processing algorithm selected by the algorithm selection means. 1. A high-speed printing processing method for a dot printer, comprising: high-speed printing processing means for executing processing.