JPS6141578A - Dot printer - Google Patents

Abstract

PURPOSE:To attain the use efficiency of an ink ribbon by suppressing the irregularity in the density of printing and the contamination of printing paper, by providing a control part changing the running speed of the ink ribbon upon the reception of the signal from a dot density detection part. CONSTITUTION:A dot density detection part 2 detects the dot density of data to be printed from a printing control part 1 and sends the signal corresponding to the dot density thereof to an ink ribbon running speed control part. Further, the ink ribbon running speed control part 3 controls an ink ribbon driving part 4 on the basis of said signal to change the running speed of the ink ribbon. Therefore, the running speed of the ink ribbon can be changed corresponding to the dot density of printing and, as a result, the irregularity in the density of printing is reduced and the contamination of printing paper is suppressed and, further, the ink ribbon can be used efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dot impact type dot printer using an ink ribbon, and particularly to a dot printer of a variable ink ribbon running speed type.

[Description of prior art]

In the conventional dot impact type dot printer,
The ink ribbon is driven at a constant speed regardless of the print dot density. As a result, the dot density causes unevenness, inefficient use of the ink ribbon, and the problem of shading in printing, or staining of the printing paper if there is only a lot of horizontal feeding without printing. There was a point.

[Problems to be solved]

In the present invention, the ink ribbon is independent of printing dot density;
It is driven at a constant speed, which solves the conventional problems such as uneven dot density, reduced ink ribbon usage efficiency, causes of printing shading, and stains on printing paper.
Alternatively, it suppresses staining of printing paper and enables more efficient use of ink ribbons.

[Means for solving problems]

The dot printer of the present invention is a dot impact type dot printer that uses an ink ribbon, and includes a dot density detection unit that detects the dot density of printing, and an ink droplet that receives multiple signals from the dot density detection unit and changes the running speed of the ink ribbon. By having a ribbon running speed control section, the above-mentioned conventional problems are solved.

〔Example〕

Next, one embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing one embodiment of the present invention.

In the figure, 1 is a print control section, 2-digit dot density detection section, 3 is an ink ribbon running speed control section, 4 is an ink ribbon drive section, and 5 is an ink ribbon drive section.
is an ink ribbon case. That is, the ink ribbon drive unit 4 is connected to the ink ribbon case 5, the ink ribbon running speed control unit 3 is connected to the ink ribbon drive unit 4,
A dot density detection section 2 is connected to the ink ribbon running speed control section 3, and a printing control section 1 is further connected to the dot density detection section 2. First, the dot density detection section 2 detects the dot density of data to be printed by the print control section 1, and sends a signal corresponding to the dot density to the ink ribbon running speed control section 3. Further, based on the signal, the ink ribbon running speed control section 3 controls the ink ribbon drive section to change the running speed of the ink ribbon. Therefore, the running speed of the ink ribbon can be changed according to the dot density of the print, resulting in less shading of the print, less staining of the print paper, and more efficient use of the ink ribbon. It is.

〔Effect of the invention〕

As explained above, the dot printer of the present invention is a dot impact type dot printer that uses an ink ribbon, and includes a dot density detection unit that detects the dot density of printing, and a dot density detection unit that receives multiple signals from the dot density detection unit and detects the ink ribbon. Since it has an ink ribbon running speed control unit that changes the running speed, by changing the running speed of the ink ribbon according to the dot density of the print, the printing has less shading, and the dirt on the running printing paper is suppressed. This has the effect that the ink ribbon can be used efficiently.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1...Print control section 2...Dot density detection section 3... Ink ribbon running speed control section 4... Ink ribbon drive unit 5... Ink ribbon case

Claims (1)

[Claims] A dot impact type dot printer using an ink ribbon includes a dot density detection section that detects the dot density of printing, and an ink ribbon running speed control section that receives a signal from the dot density detection section and changes the running speed of the ink ribbon. A dot printer characterized by having: