JPS62101460A - Ink crawl dot printer - Google Patents

Abstract

PURPOSE:To provide a low-cost printer having high power consumption and reduced noise by printing dot-composed characters using thin rubber-like sheets and ink rollers. CONSTITUTION:A hammer 1 having a pointed tip, a magnet 2 which drives the hammer, a platen 3, printing paper 4, a thin rubber-like sheet 5, a frame 6 which supports the sheet 5 and an ink roller 7 for applying ink on the surface of the sheet 5 are provided. The sheet 5, supported by the frame 6, rotates, and has ink applied on the almost entire surface by the ink roll 7. If the magnet 2 is energized, the hammer 1 passes through a clearance of the frame 6, pushing out the sheet 5. The sheet 5, of a thin rubber-like quality, allows only the tip form of the hammer to be extruded and subsequently the hammer 1 to run into the platen 3 holding the sheet 5 and the printing paper 4. At that time, ink on the sheet 5 is transferred to the printing paper 4 in the form almost resembling the hammer tip, i.e. a point, thus printing a single dot.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application J This invention relates to a technique for printing characters on printing paper.

[Prior Art] Conventionally, printers that print characters on printing paper drive a needle-shaped pin with an electromagnet, etc., and the movement causes it to collide with the printing paper via an ink ribbon, printing dots on the printing paper, and then Generally, characters are printed using a structure of dots. Since these types of printers use ink ribbons, the ink that has permeated into the ink ribbon must be transferred to the printing paper, so a needle-shaped pin to print dots has to be used with a very large amount of energy. and need to be printed,
Power consumption was increasing. Also, the sound of the paper colliding with the printing paper became louder, resulting in a very loud noise. Furthermore, a mechanism for feeding the ink ribbon was required, which was quite expensive in terms of cost.

Furthermore, in the case of ink ribbons, the mesh of the ink ribbon has an adverse effect on printing quality.

The present invention is a mechanism to eliminate such drawbacks, and its purpose is to reduce printing energy and power consumption. Another object of the present invention is to provide a quiet printer by reducing printing noise.

Another objective is to eliminate the expensive structure of an ink ribbon mechanism and provide an inexpensive printer.

Another objective is to improve print quality, especially clarity.

The present invention uses a thin rubber sheet and an ink roller to print characters in the form of dots.

Ink from an ink roller is applied to a sheet, and a hammer with a dot-forming tip is used to push out the sheet and print dots on printing paper.It is possible to use an ink roll to create a dot printer, and for this purpose, It is possible to provide a printer that requires less printing energy, has less extinguishing power, makes less noise, and is inexpensive.

Embodiments of the present invention will be described with reference to FIGS. 1, 2, and 3.

FIG. 1 is a side sectional view of the present invention, in which 1 is a hammer whose tip shape is dotted, 2 is an electromagnet that drives the hammer,
3 is a platen, 4 is printing paper, 5 is a thin rubber sheet, 6 is a frame supporting this sheet 5, and 7 is an ink roller for applying ink to the surface of the sheet 5.

FIG. 2 is an enlarged sectional view of the tip of the hammer having the structure shown in FIG. 1, and also shows a state in which dots are printed on printing paper with the hammer. FIG. 3 is a view of FIG. 2 from above.

The printing operation of the present invention having the configuration shown in FIG. 1 will be explained. The sheet 5 is supported by a frame 6 and rotates, and an ink roll 7
As a result, almost the entire surface of the sheet 5 is coated with ink.

Therefore, the ink is also applied to the portion of the hammer 1 that faces the tip 101.

When the electromagnet 2 is energized, the hammer 1 is driven in the direction of arrow 8. Hammer 1 passes through the gap in frame 6 and pushes sheet 5. Since the sheet 5 is in the form of a thin film and made of rubber, only the tip of the hammer is pushed out, as shown in FIGS. 2 and 3. The hammer 1 collides with the platen 3 while sandwiching the sheet 5 and printing paper 4. At this time, the ink on sheet 5 is
The shape of the tip of the hammer, that is, the shape of a dot, is transferred onto the printing paper 4, and one dot is printed.

If such an operation is performed by moving the hammer 1 in the digit direction (in the direction of arrow 9) or by moving the printing paper 4 in the direction of arrow 10, a character is formed by dots and printing is completed.

Although the sheet 5 is circular in this embodiment, it is also possible to use a single plate as it is.

According to the present invention, ink is applied to the surface of a thin, rubber-like sheet, the sheet is stretched from the inside with a dotted tip at the tip, and the ink applied to the sheet is printed in the shape of the tip of a hammer. Since the structure is such that it is transferred onto paper, the energy required for transfer is very small.Furthermore, since there is a rubber sheet in between, the noise caused by collisions during printing is very low.

In addition, since the dot printer is realized using an ink roll, there is no need for a complicated feeding mechanism such as an ink ribbon, and the ink roll itself is inexpensive, making it a very inexpensive printer. Transferring ink to printing paper provides much better print clarity and quality than transferring ink to printing paper via an ink ribbon.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of the ink roll type dot printer of the present invention, in which 1 is a hammer with a dot-shaped tip, 2 is an electromagnet, 3 is a platen, 4 is printing paper, and 5 is a thin film made of rubber. 6 is a frame, and 7 is an ink roller. FIG. 2 is an enlarged side cross-sectional view of the tip portion of the hammer having the structure shown in FIG. 1, and FIG. 3 is a flat-section tooth. that's all

Claims (1)

[Claims] A hammer having a dot-shaped tip, a driving means for driving the hammer, a platen provided opposite the hammer, a thin rubber sheet located between the platen and the hammer, and supporting the sheet. an ink roller that applies ink to the sheet, and the hammer pushes out the sheet while following the shape of the tip of the hammer to print dots on printing paper. formula dot printer.