JPS61171349A - Electrode head - Google Patents

Abstract

PURPOSE:To provide a high density electrode head enabling high resolving recording, by using pagodite as the fixing material of an elongated electric conductor and exposing only the leading end of said electric conductor. CONSTITUTION:An electrode head is constituted so that groove processing is applied to pagodite 12 at pitches of 100mum by using a dicing saw so as to form grooves each having a width and a depth both of which are 50mum and copper wires 11 are engaged with the grooves as elongated electric conductors and subsequently pressed and fixed by pagodite 13 same to the aforementioned pagodite 12. Because this electrode head is constituted so that electrodes are embedded in the fixing material without being protruded and only the leading end parts thereof are exposed, a fine electrode may be used and, because the length of each electrode can be freely selected, the high resolving long life electrode head is enabled. Because pagodite is used as the fixing material, recording paper is not damaged even if the electrode head is moved in a state pressed to the recording paper and printing quality becomes excellent.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrode head that is capable of recording high-resolution visible images of electrical signals on a recording medium.

BACKGROUND OF THE INVENTION In recent years, office automation systems have required a variety of terminals. Among them, there is a great demand for recording devices that convert electrical signals into visible images, so-called printers.
2. Description of the Related Art Conventionally, recording devices have been manufactured using various methods.

A recording device using electrical discharge breakdown recording paper consists of a vapor-deposited aluminum layer, a black layer, and a base paper layer.A voltage-applied electrode is brought into contact with the vapor-deposited aluminum layer of the electrical discharge breakdown recording paper, and the contact area is heated or the vapor-deposited aluminum layer is destroyed by electrical discharge. Recording is performed by removing the aluminum and exposing the underlying black layer. Therefore, in order to perform good writing, the write electrode head is manufactured in such a way that the electrode needles 21 are exposed to ensure reliable contact as shown in FIG.

Problems to be Solved by the Invention However, in the write electrode head configured as described above, the electrode needle must be made of a durable material in order to print by contacting (pressing) the electrode needle to the recording medium. Therefore, a thick and hard material must be used.

For this reason, even if write electrode heads (hereinafter referred to as electrode heads) are arranged in a staggered arrangement, it has been difficult to achieve a linear density of 6 lines/m or more.

The present invention provides a linearly arranged, high-density electrode head that enables high-resolution recording on a recording medium.

Means for Solving the Problems In order to solve the above problems, the electrode head of the present invention uses Rouseki as a material for fixing the elongated electrical conductor, and exposes only the tip of the elongated electrical conductor. Recording is performed on the recording medium by applying electricity between the recording medium and the recording medium.

Function: With the above-described configuration, the present invention does not require the electrode needles to protrude, and the electrode needles may be thin, making it possible to increase the density. In addition, since Rouseki is used as the fixing material for the electrode needle, the fixing material is stable and will not change due to the heat generated during printing (during discharge), and is slippery and soft, so it will not damage the recording material. High-quality printing is possible without the need for

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

[Example 1] FIG. 1 is a perspective view of the electrode head of the present invention.

In Figure 1, 11 is an electrical conductor (e.g. copper wire) and 12
, 13 is Rouseki. The electrode head shown in the figure was made using a dicing saw on Rouseki (obtained from Nippon Geikagakusha) 12.
Groove processing is performed with a groove depth of 50 μm and a pitch of 100 μm,
1. Copper wire as a long thin electrical conductor in the groove. (Diameter 60μ
=) After fitting the wire, the copper wire is held down and fixed using a piece of Rouseki 13 which is equivalent to the piece of Rouseki 12 mentioned above.

When this electrode head is attached to a recording device using discharge rupture recording paper and printing is performed, the following characteristics occur.

■ Printing quality (stability of dot shape after printing 60,000 characters)
is excellent.

■High resolution recording is possible.

■ Can be printed on discharge destruction recording paper without damaging it.

■ Does not deteriorate due to heat during recording.

■ Dust generated during recording is difficult to adhere to.

These characteristics are due to Rouseki's excellent lubricity, heat resistance, electrical insulation, abrasion resistance, and workability.

[Example 2] As another example, in the same way as in Example 1, the groove width and
The grooves are machined with a groove depth of 60 μm and a pitch of 100 μm.
A coated copper wire (diameter 60 μm) was fitted into the groove as an elongated electrical conductor instead of the copper wire, and then the copper wire was held down and fixed with a Rouseki 13 equivalent to the Rouseki 12.

This electrode head was also attached to a recording device using discharge rupture recording paper, and the printed results were the same as in Example 1. Furthermore, since coated copper wire is used, wiring processing when connecting to an electric signal source is easy, and a high-resolution electrode head can be easily created.

In addition, in the embodiment, a case has been described in which a copper wire is used as the elongated electrical conductor of the electrode head, but the electrical conductor is not limited to the copper wire, and other electrical conductors may be used. For example, nickel, tungsten, and molybdenum.

Examples include stainless steel, phosphor bronze, iron, etc.

Effects of the Invention As is clear from the above description, the present invention comprises an elongated electrical conductor and a Rouseki fixing material for fixing the electrical conductor, and the tip of the elongated electrical conductor is exposed and recorded. Recording is performed on a recording medium by applying electricity between the body and the body. Conventionally, the higher the resolution, the thinner the electrode needles become, so the protruding amount of the electrode needles must be shortened to maintain the protruding electrode needles. However, in the electrode head of the present invention, the electrode head is buried in the fixing material without protruding, and only the tip is exposed, so even if the electrode is thin, it is impossible to create an electrode head with high resolution and long life. Since the length of the electrode can often be freely selected, it is possible to create an electrode head with high resolution and long life.

In addition, since the electrode head of the present invention uses Rouseki as a fixing material, the area around the elongated electrical conductor will not be destroyed, dust generated during recording will not adhere to it, and it will not move when pressed against the recording paper. The printing quality is also excellent because the recording paper is not damaged.

[Brief explanation of the drawing]

11.21... Electrode needle, 12.13...
・Rouseki fixing material, 22...Resin fixing material, 23
...Lead. Name of agent: Patent attorney Toshio Nakao and 1 other person11
...Kokuzo Kakuda 2nd figure

Claims (4)

[Claims] (1) Consisting of an elongated electrical conductor and a Rouseki fixing material for fixing the electrical conductor, the tip of the elongated electrical conductor is exposed and current is applied between the recording material and the recording material. An electrode head characterized by recording. (2) The electrode according to claim 1, wherein the fixing material has a groove, and the electric conductor is fixed by embedding an elongated electric conductor in the groove. head. (3) The electrode head according to claim 1 or 2, wherein the elongated electrical conductor is a wire. (4) The electrode head according to claim 3, wherein the wire is coated with an electrically conductive insulator.