JPS62240561A - Dot printer - Google Patents

Abstract

PURPOSE:To enable the formation of an intensifying character with a thin character by shading print even with the printer of which normal printing is thick, by thinning out of the dot structure forming the character of a dot printer. CONSTITUTION:The print pattern generator 1 generating the print pattern signal (b) of character or the like by receiving a print indication signal (a) and the emphasis print signal generator 2 generating the emphasis print indication signal (c) for selection of the print pattern to be emphasized are possessed. An emphasis print switch 3 selects the print pattern signal (b) to be emphasized according to the indication of the inputted emphasis print indication signal (c), sends the emphasis print pattern signal to a dot thinning out processor 4 for the print pattern to be emphasized and sends a normal pattern signal to a print controller 5 for the normal print pattern not to be emphasized. The dot pattern sent to the dot thinning out processor 4 is processed by thinning out every other dot. The thinned-out dot pattern signal is sent to a print controller 5 to perform the printing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dot printer, and more particularly to a function for generating emphasized characters in a transfer printer.

[Prior Art] Conventionally, when a printer prints by emphasizing a specific character, an impact printer prints the character twice in the same place to make the character darker, or by making the line of the character to be printed thicker. By doing so, the characters were emphasized. Moreover, these two methods may be performed simultaneously.

- On the other hand, non-impact printers used a method of making the lines of characters thicker.

[Problems to be solved] In the conventional emphasized character printing mentioned above, especially in transfer printers, the lines of the printed characters themselves are dark, so even if you use a method like double-strike with an impact printer, the print will be dark. Therefore, as shown in Figure 5, the entire character is made to appear darker and emphasized by only making the lines of the character thicker. As a result, there are disadvantages in that too much shading is produced, and characters become difficult to read due to thicker lines.

[Means for Solving Problems] The dot printer of the present invention which solves the above conventional problems includes a print pattern generator that generates a print pattern signal in response to a print instruction signal, and an emphasis print instruction that selects a print pattern to be emphasized. An emphasized print signal generator that generates a signal, an emphasized print switch that receives the print pattern signal and the emphasized print instruction signal as input, and switches and outputs a normal print pattern signal and an emphasized print pattern signal, and this highlighted print switch If the output of the dot is an emphasized print pattern signal, a dot thinning processor which takes the same signal as input and performs dot thinning processing, and an output signal of this dot thinner or the normal print pattern signal output from the emphasized print switching device. This configuration includes a print controller that performs print control as an input.

[Example] Hereinafter, the present invention will be explained with reference to the drawings.

FIG. 1 shows a block diagram of a print control section of a dot printer according to an embodiment of the present invention. In the same figure, 1
2 is a print pattern generator that receives a print instruction signal a and generates a print pattern signal S such as a character, and 2 is an emphasis print signal generator that generates an emphasis print instruction signal C for selecting a print pattern to be emphasized. . The printing pattern signal C and the emphasized printing instruction signal C are each input to an emphasized printing switching device 3. This emphasis printing switching device 3 is
A print pattern signal to be emphasized is selected in accordance with the inputted emphasis print instruction signal C, and in the case of a print pattern to be emphasized, the emphasized print pattern signal is sent to the dot thinning processor 4, and a normal print pattern signal that is not emphasized is sent to the dot thinning processor 4. In the case of a print pattern, a pattern signal is normally sent to the print controller 5.

The dot thinning processor 3 performs dot thinning processing on the input emphasized print pattern signal, and then sends the same signal to the print controller 5.

Next, the operation of the dot printer having the above configuration will be explained.

That is, the print pattern generator 1 that receives the print instruction signal a generates the print pattern signal S of a character, for example, [A]. The emphasized print switching unit 3, which receives as input, sends an emphasized print pattern signal to the dot thinning processor 4 when emphasizing, and directly sends an unthinned print pattern signal to the print controller 5 when not emphasizing.

The dot pattern sent to the dot thinning processor 4 is thinned out every other dot as shown in FIG. 2.The dot pattern signal thinned out to 0 is sent to the print controller 5, where printing is performed . In this way, when a highlighted character is specified, it is thinned out and printed.

In conventional dot printers, characters are formed by closely spaced dots as shown in FIG. On the other hand, the dot printer of the present invention thins out every other dot from this configuration to print as shown in FIG. Comparing the printing in FIG. 2 and FIG. 5, the printing in FIG. 1 is lighter than the character structure in FIG. 5. Therefore, if a thinned-out character is printed in normal printing with dense dots as shown in FIG. 5, it will be emphasized as a thin character. In other words, in transfer type printers that print darkly under normal conditions, the shading cannot be achieved by overprinting by double-strike, etc., so the shading is created by printing thinly rather than darkly, thereby emphasizing the characters. There are other methods of 0 thinning, such as those shown in Figure 3.
A method of thinning out every vertical column and every horizontal column as shown in FIG. 4 can be considered. Further, if uniform thinning is performed, characters that are unreadable due to missing dots may be stored as a separate pattern.

[Effects of the Invention] As explained above, the present invention thins out the dot structure that forms characters in a tod printer, thereby creating shading of characters even in printers that normally print dark characters, and forming emphasized characters with lighter characters. There is an effect that can be done.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a dot printer according to an embodiment of the present invention, FIG. 2 is a diagram showing characters printed by the same printer, and FIGS. 3 and 4 are respectively other embodiments of the present invention. FIG. 5 is a diagram showing characters printed by a conventional dot printer. 1: Print pattern generator 2 2 Emphasized print signal generator 3: Emphasized print switch 4: Dot thinning processor 5: Print controller

Claims (1)

[Claims] a print pattern generator that generates a print pattern signal in response to a print instruction signal; an emphasized print signal generator that generates an emphasized print instruction signal that selects a print pattern to be emphasized; and the print pattern signal and the emphasized print instruction signal. An emphasized print switching device that takes as input and switches and outputs a normal printing pattern signal and an emphasized printing pattern signal, and when the output of this emphasized printing switching device is an emphasized printing pattern signal, the same signal is used as input and performs dot thinning processing. A dot printer comprising: a dot thinning processor; and a print controller that performs printing control by inputting an output signal of the dot thinning processor or a normal print pattern signal output from the emphasized print switching device.