JPS58188670A - Dot printer - Google Patents

Abstract

PURPOSE:To enable color printing at a high speed and to also enable the printing of a chinese character, by obliquely arranging a multicolor ribbon separated into colors in the width direction thereof to the leading end a printing head having printing pin rows in numbers same to the number of colors. CONSTITUTION:Printing pins 10 are arranged in the same numbers as a number of colors of an N color ribbon 9 and each printing pin rows (a)-(c) are opposed to each color bands A-C while each printing pin rows (a)-(c) are obliquely arranged in a state shifted every one dot. In carrying out color printing, an Arbaic numeral, a kana or a mark are printed in the indicated printing pin row by vertical 8 dots. In the case of a chinese character, a monocolor ribbon is mounted and all printing pins 10 are used to be able to carry out, for example, the printing of 24X24 dots.

Description

DETAILED DESCRIPTION OF THE INVENTION (JI) Technical Field of the Invention The present invention relates to a dot printer, and in particular to a dot printer that uses N-color ribbons to print in color without reducing printing speed.
Also, when using a single color ribbon, the printing speed is N times faster than when using N color ribbon, and the alphabet 5. This invention relates to a dot printer that is capable of printing dots, numbers, kana, etc., as well as 24x24 dot kanji.

伽) Prior art and problems As shown in the first factor, for example, in a conventional dot printer, a carrier 3 is moved in the axial direction of the platen lO by a space motor 4 via a belt and a feed screw S, facing the printing paper 2 on the platen 1. Move left and right along. Also print head 6
is mounted on a carrier 3, and an ink ribbon cassette 7 is provided on the carrier 3, and this ink ribbon 8ri is supplied between the print head 6 and the print paper 2. The print head 6 is provided with a plurality of print wires, and these print wires are moved toward the platen by a driving means such as a magnet or the like, and the ink ribbon 8. The platen 1 is impacted through the printing paper 21.

At this time, the ink ribbon 8 is transported by a ribbon feed mechanism (not shown), the ink is transferred onto the print paper 2, and a pattern such as a character is formed by the combination of dots of the print head 6.

In a color tod printer, the ink ribbons 8 are each set in N color ribbons (N single color ribbons) parallel to the print line, and the entire N color ribbon band has a mechanism that can move up and down with respect to the print head. .

This mechanism was used to print while changing the color of the ribbon.

Therefore, when printing in color, it is necessary to shift the ribbon band of the N colors and place the ribbon of the desired color every time the color is changed, which reduces the printing speed by 11 points compared to monochrome printing. There were drawbacks.

(C) Purpose of the Invention In view of the above-mentioned drawbacks of the conventional art, the present invention provides a dot printer that is capable of color printing without reducing the printing speed, and that also enables higher-speed printing of Kurakan characters in the case of monochrome printing. It is an object.

(d) Structure and object of the invention According to the present invention, an N-color ribbon, which is color-coded in the radial direction, is attached obliquely to the tip of the print head, and printing pin rows of the same number as the number of colors of the N-color ribbon are arranged. If the printing pins are arranged so as to always face each color band of the N color ribbon, and furthermore, each printing pin row is arranged diagonally by shifting one dot at a time, and each of the printing pin rows is selectively driven, from K, Enables color printing.

Also, when a single color ribbon is installed instead of the N color ribbon, it is possible to print alphabets, g, numbers, kana, etc., or kanji characters at N times the printing speed when the N color ribbon is installed. This is achieved by providing a dot printer featuring:

(e) Examples of the invention Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a perspective view showing the state in which the N-color ribbon of the present invention is attached to the tip of the print head, and FIG. 3 is a front view for explaining the N-color ribbon and the printing pin row of the present invention.

'1g2 As shown in Figure 2, an endless N-color ribbon 9t divided by color in two width directions is set diagonally at the tip of the print head 6. The positional relationship between the N-color ribbon 9 and the printing bins is as shown in FIG. 3 (three-color ribbon example).

The printing bins 1O are arranged in the same number of rows as the number of colors (A, B, C in the figure) of the N-color ribbon 9, and each printing bottle row is placed in the same row.

The color bands A, B, and CK of the N-color ribbon are arranged so that b and c are opposed to each other, and the printing pin rows a, b, and c are arranged diagonally so as to be shifted by one dot. In addition.

11ti case, 12 indicates a guide rail.

Taking the case where three color ribbons are attached as an example, in FIG. 3, three color bands A, T3. C and 3rd row a.

The printing bins 10 of b and c are arranged so as to always face each other, and the printing bins 10 of 8 dots are provided vertically in one row at 3-dot intervals, while the printing bin rows are horizontally arranged corresponding to each color. Arranged in 3 rows, each printing pin row a, b, c has 1 card,
They are arranged in diagonal order, shifted by 1.

Therefore, when printing in color, the printing pin rows a and b are designated with 8 vertical dots of alphabets, numbers, kana symbols, etc.
, c to print in the specified color.

That is, each printing pin row a, b, and c has one character's worth of printing on it, with a yellow F'ia pin row and a B color b bottle row.

The printing pin rows to be used for the print colors are determined in advance, such as the C bin row for color 0, and color printing is performed by selectively driving the printing pin rows. This eliminates the need for eight color change mechanisms for KN color ribbons as in the past, so color printing is possible without reducing printing speed. Furthermore, by overprinting each color tod, it is possible to obtain not only three colors but also one composite color dot color.

Also, if a single-color ribbon is attached instead of a three-color ribbon, it will have 8 vertical dots of alphabets and numbers.

If kana etc. are printed for each printing pin row, a printing speed three times that of color printing can be obtained. Furthermore, if all the printing bins 10 are used when the monochrome ribbon is attached, the printing pin rows a, b, and c are arranged diagonally by shifting one dot at a time, so that it is possible to print 24×24 dots F of Chinese characters.

Although the above embodiments have been described using three colors, the same can be said even if N colors are used.

(f) Effects of the Invention As explained in detail, the dot printer of the present invention can print in color without reducing the printing speed, and in the case of monochrome printing, the effect is that it can print at higher speeds or print kanji characters. Thick.

[Brief explanation of the drawing]

Fig. 1 is a plan view for explaining a conventional dot printer, Fig. 2 is a perspective view for explaining an embodiment of the dot printer of the present invention, and Fig. 3 is an N-color ribbon and a printing pin row of the present invention. A front view for explanation is shown. In the figure, tII platen, 2R printing hole, 6 print head, 9 N color ribbon, 10Fi print bin. 11 is the case, 12 is the guide rail 7, Figure 1 Now Figure 2 Section 3

Claims (1)

[Scope of Claims] 1. A plurality of printing pin rows consisting of a plurality of printing pins are provided, and each printing pin row is arranged diagonally by shifting one dot at a time, and is configured in response to an information signal from a host device. A dot printer that prints on a recording medium by selectively driving the dot printer. 2. A patent characterized in that the plurality of rows of printing pins are arranged so as to face a color band of an ink ribbon of N colors, which is attached diagonally to the tip of the print head and divided by color in one width direction. A dot printer according to claim 1.