JPS63214458A - Recording head for power conduction recording - Google Patents

Abstract

PURPOSE:To enhance the independent operability between electrodes and to apply printing of high resolving power even on a paper having a rough surface, by providing the leading end parts of recording electrodes on electric insulating elastomers and providing recessed parts to the electric insulating elastomers between electrodes or removing the electric insulating elastomers between the electrodes. CONSTITUTION:A polyimide film 12 having a thickness of 25mum is adhered to an alumina substrate 11 having a thickness of 2 mm by a heat resistant curable adhesive and a tungsten layer 13 is provided thereon in a thickness of 2mum. A photoresist is applied to said tungsten layer 13 and exposed to an electrode pattern shape to form an electrode pattern. The exposed parts of the tungsten layer 13 are etched by a tungsten etchant to form tungsten electrodes 14. These electrodes 14 are masked and the polyimide film 12 is etched to form electric insulating elastomers 15 and, further, the leading end parts of the electrodes 14 are removed by printing to provide a protective film 16. By this constitution, high resolving power and high quality recording can be realized even on a paper having a rough surface.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) (Prior Art) The energization recording method applies electricity to a recording medium from a recording electrode in accordance with a recording signal to activate the inside of the recording medium. cause fever,
It is characterized by its ability to produce color or heat-soften the ink, allowing for efficient recording. recently.

A printer using an electric transfer recording method that can record on paper with a rough surface such as PPC paper and bond paper has been announced, and currently,
FIG. 8 shows the principle of the six current transfer recording system, which is attracting attention as a printer that can replace the wire dot printers that make up the majority of serial printers.

On the resistive substrate 1, a conductive layer 2. A resistive ink ribbon 4 on which thermoplastic ink layers 3 are sequentially laminated and a recording 5 are superimposed with the ink layer 3 interposed therebetween, and a recording electrode 6 is in contact with the substrate 1.
The substrate 1 directly below the recording potential 6 is energized according to the recording signal.
The Joule heat generated inside softens the ink and transfers it to the recording paper 5. The thickness of the resistive ink ribbon 4 is 2
If the surface of the recording paper 5 is rough, such as PPC paper or bond paper, the unevenness of the surface will affect the contact state between the recording electrode 6 and the substrate 1. Therefore, the recording electrode 6
In a recording head equipped with a recording paper, it is necessary to devise ways to maintain uniform contact between the plurality of recording electrodes and the ink ribbon, regardless of the unevenness of the surface of the recording paper. In response to this demand, a recording head has been proposed in which a thin tungsten plate is attached to a polyimide film 7 and a recording electrode 8 is formed by etching the tungsten, and this is placed on a silicone rubber 9, as shown in FIG. (IBM Tachnica
lDiseloaura Bulletin, vol.
23. No, 9. P4305 (1981)) In the recording head of this structure, each electrode can move independently due to the elastic action of the silicone rubber, compared to conventional recording heads, and the contact condition of each electrode is improved.

However, in a recording head with this structure, a polyimide film is also used as a carrier for the recording electrodes, so an extremely thin film cannot be used to maintain its function. is limited by polyimide film, even with softer silicone rubber.

There was a problem that independent operation between the electrodes was not improved. Furthermore, as the recording electrode density increases and the ratio of the width between the electrodes and the thickness of the carrier film approaches 1, the independent operation between the electrodes is determined not by the silicone rubber but by the rigidity of the carrier film. There has been a problem in that it is difficult to obtain a high resolution recording head with excellent independent operability.

(Problems to be Solved by the Invention) As described above, in the conventional electric transfer recording head, the independent operation between the electrodes was poor, and high resolution recording on a recording paper with a rough surface could not be sufficiently achieved.

Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a recording head for current-carrying recording having a novel structure with excellent independent operation between electrodes. Another object of the present invention is to provide a recording head for current-carrying recording that has excellent independent operation between electrodes even when the electrode density is increased. Still another object of the present invention is to provide a recording head for electrical transfer recording capable of recording characters with high resolution similar to type on paper with a rough surface such as pound paper.

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above problems, the present invention provides at least the recording electrode tip portion on an electrically insulating body.

- The problem is solved by providing a recess in the electrically insulating elastic body between the electrodes or by removing the electrically insulating elastic body between the electrodes.

(Function) In the recording head according to the present invention, by supporting the recording electrodes with elastic bodies, it is possible to move the recording electrode 1 elastic body of the recording electrodes in the stacking direction (vertical direction), and the elastic body between the recording electrodes By removing the recesses or elastic bodies, the recording electrodes can be moved in the direction in which the recording electrodes are lined up (left and right), thereby ensuring independent operation of each electrode.

Also, the thickness of the elastic body between the electrodes is expressed as
By making it sufficiently thin, i! ! Since the reaction force due to the horizontal movement of the recording electrodes due to the elastic body between the poles can be reduced, even if the recording electrode density becomes high, the independent operability of the electrodes can be sufficiently maintained.

(Example) Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows the structure of the recording electrode tip of an example of the recording head for current-carrying recording according to the present invention. 10 is a recording head. Reference numeral 11 denotes a substrate, which is an alumina plate with a thickness of 2 cm.

In addition, a metal plate such as iron, an epoxy plate, or the like can be used as the substrate. A substrate material with good thermal conductivity is preferable in order to efficiently dissipate heat generated by contact resistance between the recording electrode and the resistive ink ribbon.The substrate material does not need to be particularly electrically insulating.15 is electrically insulating. It is an elastic body made of polyimide with a thickness of 25μ. Any material may be used as long as it is electrically insulating and has elasticity.

The thickness of the elastic body 15 is as follows, if independent operation of each electrode is achieved.
Any thickness may be used, but a thickness of 5 μm or more is preferable. Reference numeral 14 denotes recording electrodes, and although they are omitted in FIG. The recording electrode material is preferably a material that is electrically conductive and has excellent abrasion resistance.The other ends (not shown) of the electrodes 14 are each connected to a drive circuit (not shown) that drives the recording head set.

A protective film 16 is made of an electrically insulating organic material. The protection 1I 114 is provided so that the tip of the electrode 13 is exposed, and must be provided so as not to fill the space between the electrodes 13 at the tip of the electrode 13.

Next, the manufacturing process of the recording head shown in FIG. 1 will be explained using FIG. 2. A 25μ thick polyimide film 12 is adhered to a 2-thick alumina substrate 11 with a heat-resistant curing adhesive (Fig. 2 ((1)), and a 2μ thick tungsten layer 13 is provided thereon by sputtering (Fig. 2). (b) )
Next, a photoresist (not shown) is applied on the tungsten layer 13, exposed to light in the shape of an electrode pattern, and rinsed to form a ttit@ pattern of the photoresist on the tungsten layer 13.

Using tungsten etchant, tungsten layer 1
The exposed portion of 3 was etched to form a tungsten electrode 14 (FIG. 2(c)). Next, using the tungsten electrode 14 as a mask, the polyimide film 12 was etched onto the alumina substrate 11 using a hydrazine-based etchant. The polyimide film 1z was etched until the polyimide film 1z was etched to form separate electrically insulating elastic bodies 15 in the same way as the tungsten electrodes 14 (FIG. 2(d)). Furthermore, the tips of the electrodes 14 were etched by printing. Except, protection l116
(Figure 2(s)).

A single current transfer type serial printer was constructed using the recording head shown in FIG.

The carriage 21 is driven by a carriage drive motor 22.
It is driven via a timing belt 23 and moves along a platen roller 24 under the guidance of a guide roller z5. The carriage 21 is also provided with an ink ribbon cassette 26. The ink ribbon cassette 26 contains the same resistive ink ribbon 4 as the ink ribbon shown in FIG.
is stored therein, is fed out from a ribbon supply reel (not shown) of the ribbon cassette 26, passes through the recording head 10 and the return electrode 27, and is wound onto a ribbon take-up reel (not shown) of the ink ribbon cassette 26. A recording paper 28 is wound around the platen roller 24, and moves via a timing belt 29 in accordance with the movement of the platen roller 24, which is rotated by the drive of a platen roller drive motor 30. The recording head is platen roller 24
It is provided at an angle of approximately 45 degrees with respect to the axial direction of the shaft.

By doing so, the recording head and the electrode 14 of the inkstone can be brought into contact with the resistive substrate 1 of the ink ribbon 4 with a certain amount of contact area.

The recording operation of this printer will be explained using FIG. In accordance with the input recording signal, a recording current (indicated by an arrow) is injected from the electrode 14 into the resistive substrate 1 by zero current application from the recording head drive circuit 31 to the recording electrode 14 of the recording head. The recording current is applied to the resistive substrate 1. After passing through the conductive layer 2 and passing through the resistive substrate 1 under the return electrode 27, the return electrode 27
Joule heat is generated in the resistive substrate under the electrode 14 by the zero current flowing through, which is transmitted to the ink layer 3 and melts or softens the ink.During zero current, the recording head is moving in the direction indicated by the arrow. Since the heat generating portion of this recording head is located at the leading edge of the recording head, the ink is separated from the recording paper 5 in a melted or softened state. Since the solid area of the non-current-conducting part and the melted or softened area of the energized part (transfer ink part) are maintained during peeling, cutting of the ink easily occurs at the boundary of the true region, and it is possible to use ink with an appropriately strong cohesive force. By using this method, an appropriate part of the ink in the melted or softened area is attached to the recording paper.Even in a state of weak adhesion, the ink in the melted or softened area is easily transferred to the recording paper.After electricity is applied, the ink re-solidifies. In the case of conditions where the ink peels off from the recording paper, the distinction between energized and non-energized areas is that only the areas that are attached to the recording paper and the areas that are not attached, and only the ink in the attached areas is transferred to the recording paper. In transfer recording, ink cannot adhere to the recording paper in all of the energized areas (areas to be recorded as image dots), so accurate ink transfer, that is, image formation, cannot be achieved with the recording head of the printer configured as shown in Figure 3. Using the recording head according to the present invention and the recording head having the conventional structure shown in FIG. I made a comparison. With the recording head according to the present invention, high-quality character recording at the NLQ level was obtained, and even in solid recording, a uniform solid pattern without missing bits was obtained. However, with conventional recording heads, bits are often missing in the thin lines of characters, and even solid printing results in a solid pattern with conspicuous white spots (paper background color) with missing bits. The difference between these two heads will be explained using FIG. 5. As previously explained with reference to FIG. 4, if electricity can be applied to a desired portion of the ink ribbon, ink transfer, that is, image dot formation, can be achieved. However, if the surface of the recording paper overlaid with the ink ribbon is rough, the effect of the unevenness of the surface will also appear on the resistive base of the ink ribbon that is in contact with the electrodes of the recording head, as shown in Figure 5. As shown, the surface of the resistive substrate 1 is uneven. If each electrode of the recording head can accurately contact these irregularities, accurate transfer recording can be performed on rough paper. In order to accurately bring the recording electrode into contact with the resistive substrate, it is generally done to increase the pressing pressure of the recording electrode against the resistive substrate. In the recording head according to the present invention, the electrode 1 is connected to the protrusion of the resistive base 1.
4a, the elastic body 15a is separated between the electrodes, so changes in the vertical direction (thickness direction of the elastic body 15) are reflected in the lateral direction (
This can be absorbed as deformation in the inter-electrode direction), and the electrode 14b can be brought into sufficient contact with the recessed portion of the resistive substrate 1 (see FIG. 5 ((1)), L-shaped, conventional recording head. In this case, since the polyimide layer under the electrode 14 is continuous, deformation in the vertical direction cannot be absorbed in the lateral direction, and
When the polyimide layer under the electrode 88 relative to the protrusion of the resistive base 1 is deformed in the direction of compression, the polyimide layer between the electrodes also deforms in the direction of compression, so that the adjacent electrode 8b is separated from the resistive base 1. 111 poles 8
b becomes difficult to come into contact with the resistive base body 1, and may even not come into contact with it. In such a case, insufficient formation of a single point or missing bits may occur. As is clear from the above description, the effects of the recording head according to the present invention are even more apparent in a recording head for recording image density of genuine notes in which electrodes are provided at a higher writing density. When an experiment similar to the previous recording experiment was conducted using a recording head according to the present invention with an electrode density of 1211 electrodes/mold and a conventional recording head, it was found that with the recording head according to the present invention, bit skipping caused density unevenness. Although no high quality records were obtained.

With the conventional recording head, there were many missing bits, and the recording was worse than that with an electrode density of 8 elements/■.

Next, a recording head of another embodiment will be explained.

FIG. 6 shows the structure around the electrode tip of this recording head, where 32 is an electrode, 33 is an electrically insulating elastic body, and l! 1 is a substrate, and 16 is a protective film. A 25μ tungsten foil and a 25μ polyimide film are bonded together and the tungsten is etched to form an electrode pattern. This is 2■
to the zirconia substrate.

Next, the polyimide between the electrodes is burned away using a laser to form a groove. The protection s16 is formed by coating the tip of the electrode that comes into contact with the ink ribbon. The recording head according to the present invention has an insulating elastic body 3 between electrodes 32 as shown in FIG.
It can also be constructed by forming a groove in 3. Using a recording head with this configuration.

When a recording experiment was conducted, effects similar to those of the recording head shown in FIG. 1 were obtained. Furthermore, the grooves 34 provided in the insulating elastic body 34 do not need to be provided all the way between the electrodes, and may be limited to a range where independent operation of the electrode tips can be achieved, as shown in FIG. be. Similarly, in the recording head shown in Fig. 1, even if the insulating elastic body between the electrodes is completely removed, it is also possible to limit the removed portion to the range where the electrode tips can operate independently. Of course, the same effects as the recording head can be obtained.

In the above embodiments, a recording head for a serial printer has been described, but it is clear that similar effects can be obtained with a line type recording head. Also.

It is clear that the present invention can be used as a recording head not only for the current transfer method but also for any recording method that performs recording by coloring or activating the recording medium by energizing it.

On the other hand, the single current transfer method is a method with excellent thermal efficiency, so high-speed recording is possible. In order to increase the printing speed, it is necessary to generate the necessary thermal energy to thermally soften the ink within a short time. Therefore, as the printing speed increases, the recording voltage of the recording electrode must be increased. For example, at a printing speed of 40 cps, the recording voltage is 20 V.
Although it is ~30V.

At 80 cps, it becomes 40 V or more.

When the recording electrode slides on the ink ribbon at high speed with a high voltage applied to it, an air gap occurs between the recording electrode and the ink ribbon, causing an air discharge, which electrically wears out the recording electrode. Therefore, problems such as shortening the life of the recording electrode or deteriorating print quality often occur.

To solve this problem, conventional methods have been to polish the tip using a ribbon for recording electrode treatment, or to provide an abrasive sheet at the tip of the rolled recording paper (Japanese Patent Laid-Open No. 61-1111).
-43584) solution is presented. However, all of these methods require additional parts and, more importantly, grind the electrode to the point of greatest wear (generally, electrical erosion is deeper than mechanical wear). Although the print quality is restored, the life of the recording electrode is further shortened.

Therefore, in the following examples, by using a combination of tungsten and molybdenum, which have high melting points and excellent mechanical abrasion resistance, and noble metals such as gold and platinum, as recording electrode materials,
This shows a recording head for current-carrying recording that has excellent arc resistance and high-speed sliding resistance.

A recording head with such a configuration uses gold combined with the excellent mechanical wear resistance of tungsten and molybdenum.
Due to the action of precious metals such as platinum, it is possible to achieve performance that combines excellent electrical corrosion resistance. Further, due to the action of the noble metal having excellent ductility, stable contact between the recording electrode and the ink ribbon can be maintained at all times, regardless of minute irregularities on the surface of the ink ribbon or minute damage to the surface of each recording electrode.

Next, embodiments of this recording head will be described in detail with reference to the drawings. FIG. 10 shows a recording head for current-carrying recording according to this embodiment. Reference numeral 110 indicates recording electrodes, and nine examples are shown here. One end of the recording electrode is supported by a rubber-like elastic body 111. The other end of the recording electrode 110 extended inside the rubber-like elastic body 111 is a flexible film 1112.
It is connected to a connection pad 113 formed above by wire bonding. The connection pads 113 are each connected to external connection electrodes 114. Rubber-like elastic body 11
1. The flexible film 112 is supported by a plastic head support 115.

The recording electrode 110 is made of a wire with a diameter of 50 m.

They are lined up at intervals of 1007m. The cross section of the wire is
The wire shown in FIG. 1 is made of molybdenum 116 as a core and platinum 117 coated around it. The thickness of the noble metal to be coated may be 5 μm or less.

Here, a molybdenum wire with a diameter of 46 mm is coated with 2 p of platinum. The core metal may be molybdenum or tungsten. Both of these metals have a high melting point (molybdenum 2620℃, tungsten 3380℃) and harden (
hardness ~7) and low specific resistance (molybdenum ~5 x 1G"
It is characterized by having a hardness of 5 or more, preferably 7 or more, and a melting point of 1000℃, in addition to molybdenum and tungsten.
As mentioned above, the same effect can be obtained using a metal with a specific resistance of too x to - 0.1 or less, preferably 50 x 10 - "Ω.1 or less. In addition to platinum, noble metals to be coated include gold, silver, iridium, ruthenium, etc. In addition, an intermediate metal layer may be provided to improve the adhesion between the core metal and the coating precious metal, and since the optical end of the recording electrode 10 contacts the ink bong with the same contact pressure. Of course, the protruding lengths of the tips are limited so that they do not come into contact with each other even when contact pressure is applied.Also,
In order to avoid contact between the recording electrodes, the recording electrode wire may be covered with an electrical insulator, except for the part that will slide with the ink ribbon. It is used to make things even better. Since the recording electrodes 110 are supported by the rubber-like elastic body 111, each of the recording electrodes 110 can move independently, and even if the surface that the recording electrodes 110 contact has irregularities, it is possible to maintain good contact with each electrode. can. As the rubber-like elastic body, silicone rubber, NBR, etc. can be used, and the rubber hardness is preferably in the range of 30 to 50 degrees. In this example, silicone rubber with a rubber hardness of 40 degrees is cast. The recording electrode 110 and the connection pad 113 formed on the flexible film 112 are connected by wire bonding. Any other arbitrary method can be used for this connection method. A recording head for comparison was manufactured using 50-mm molybdenum wire.

A lifespan test of the recording head was conducted using a printer based on the recording principle shown in FIG. Recording current 50mA/electrode applied voltage 4
Alphabet letters were recorded on bond paper with a Beck smoothness of 8 seconds at 5 V and a printing speed of 80 cps.

With the comparative tungsten wire electrode head, the print quality deteriorated after about 500,000 characters, but with this example recording head, the print quality did not change at all even after about 2 million characters, and the print quality was as good as the initial one. Ta. This is because in high-speed recording, when recording paper with a rough surface such as bond paper is used, this effect also appears on the ink cylinder surface that contacts the recording electrode, causing the ink to slide at high speed on the uneven surface. Therefore, the vertical movement of the recording electrode becomes large, and the probability that the recording electrode and the ink ribbon surface separate increases. When the recording electrode and the ink ribbon surface separate, the higher the recording voltage increases the probability of arc discharge and therefore electrical erosion. 0 Mechanical wear is generally averaged over all recording electrodes, but f1! Gaseous erosion is caused by arc discharge, so the damage is not average and the amount of damage is large.
When the tips of the tungsten wire recording electrodes of the comparison recording head were observed after the experiment, damage that was clearly caused by electrical erosion was observed on several of the recording electrodes, which was causing deterioration in print quality.

FIG. 1z shows a recording head according to another embodiment. In this embodiment, the recording electrode 110 is embedded in a head support 115.

The same numbers as in FIG. 10 are indicated as the same as in FIG. 10. Even when this recording head is used, since the recording electrodes 110 protrude from the head support 115, each recording electrode can move independently. 10th
Using the printer used for the printing test of the recording head shown in the figure,
Similar printing tests were conducted, and as with the recording head shown in FIG. 10, no deterioration in print quality was observed even after approximately 2 million characters were printed.

FIG. 14 shows a cross section of a recording electrode portion of a recording head according to another embodiment. 118 is a recording electrode made of tungsten 11
It consists of 9 and gold 120. 121 is a recording electrode 118
It is a polyimide film that supports the

122 is a rubber-like elastic body. 123 is a plastic head support. The recording electrodes of the recording head of this example are formed on a polyimide film with 25. After adhering a tungsten sheet of
- Nine recording electrodes were formed with an inter-electrode pitch of 100 electrodes.

At this time, an external connection terminal (not shown) and a conductor (not shown) connecting the recording electrode and the external connection terminal are also formed at the same time. Thereafter, the polyamide film 121 on which the electrodes were formed, the head support 123, and the rubber-like elastic body 122 were assembled to obtain a recording head having the structure shown in FIG. 13. The recording electrodes may be laminated in the order shown in FIG. 13, but the effect of the present invention can be made more effective if the noble metal is in contact with the upper part, that is, the ink ribbon.

In this recording head as well, the recording electrodes can move independently due to the effect of the rubber-like elastic body under the recording electrodes 118. As a comparative recording head, a recording head with only tungsten recording electrodes was also made.

Both recording heads were tested under the same conditions using the printer used for the printing test of the recording head shown in Figure 10.
In a continuous printing test of 10,000 characters, the recording head of this example was able to print with the same good print quality as the first one, up to the quantitative determination, but the comparative recording head showed problems such as missing bits and a decrease in print density. Print quality has deteriorated significantly. 14th
In the recording head of another embodiment shown in the figure, a recording electrode 127 made of molybdenum 125 and gold 126 is formed on an alumina ceramic substrate 124. When this recording head was subjected to a continuous printing test under 14 conditions similar to those of the previous recording head, no deterioration in print quality was observed even after continuous printing of approximately 2 million characters.

In the above example, the recording electrode has a structure in which molybdenum or tungsten is coated with noble metals such as platinum or gold, or a laminate structure, but it is of course possible to use an alloy of both metals.

The recording head of this example has excellent not only mechanical wear resistance but also arc resistance and electrical erosion resistance.
A longer life is achieved compared to conventional recording heads. Furthermore, it is possible to provide a long-life and highly reliable recording head for high-speed recording using a high recording voltage. Furthermore, since it has excellent high-speed sliding properties, stable contact resistance between the recording electrode and the ink ribbon is achieved even during high-speed recording, so high-quality and stable recording can be performed.

〔Effect of the invention〕

By using the recording head according to the present invention, it is possible to realize an energized recording type printer that can record on any paper with a rough surface. Furthermore, a recording head for rough paper with higher resolution can be realized. Furthermore, it is possible to realize an electric transfer printer that can print high-resolution and high-quality information on any paper.

[Brief explanation of the drawing]

FIG. 1 is an enlarged view of the main parts of a recording head according to an embodiment of the present invention, FIG. 2 is a diagram showing the manufacturing process of the recording head of FIG. 1, and FIG. 4 is a diagram for explaining the recording operation of the printer of FIG. 3; FIG. 5 is a diagram for explaining the effect of the recording head according to the present invention; FIG. FIG. 2 is an enlarged view of a main part of a recording head according to another embodiment of the present invention. 7th I! 1 is a modification of the recording head shown in FIG. 6, FIG. 8 is a diagram for explaining the recording principle of current transfer recording, FIG. 9 is a diagram for explaining the configuration of a conventional recording head, and FIG. 10 is a diagram for explaining the configuration of a conventional recording head. A diagram schematically showing a recording head according to an embodiment of the present invention,
FIG. 11 is a diagram showing a cross section of the recording electrode of the recording head shown in FIG. 1, FIG. 12 is a diagram schematically showing a recording head of an embodiment of the present invention, and FIG. 13 is a diagram of the present invention. A schematic cross-sectional view of a recording electrode portion of a recording head according to another embodiment, No. 1
FIG. 4 is a schematic cross-sectional view of a recording electrode portion of a recording head according to still another embodiment of the present invention, and FIG. 15 is a diagram for explaining the current transfer recording method. 11... Substrate 15.33... Electrically insulating elastic body 14.32... Electrode 16
...Protective film 34...Groove 110,
118,127... Recording electrode 116.125... Molybdenum 117... Platinum 120... Tungsten 119,126... Gold 111.122.
...Rubber-like elastic body 124... Ceramic substrate agent Patent attorney Nori Ken Yudo Chika Kikuo Takehana Figure 1 Figure 2 Figure 5 Figure 4 Figure 6 Figure 9 Figure 10 Figure 11 Figure 12 figure

Claims (2)

[Claims] (1) In a recording head for current-carrying recording used in a current-carrying recording method in which a recording electrode and a return electrode are in contact with a recording medium, and recording is performed by flowing a recording current between the two electrodes via the recording medium in response to a recording signal. , at least the tip of the recording electrode is provided on an electrically insulating elastic body, and a recess is provided in the electrically insulating elastic body between the recording electrodes, or the electrically insulating body between the recording electrodes is removed. A recording head for energized recording characterized by the following. (2) In the current recording method, a recording electrode and a return electrode are attached to a resistive base of an ink ribbon, which has a resistive base, a heat-softening ink layer, and optionally a conductive layer between the base and the ink layer. energized transfer recording, in which an electric current is applied between the recording electrode and the return electrode according to a recording signal, the generated Joule heat softens the ink layer, and the ink is transferred to the recording paper that is in contact with the ink layer for recording. A recording head for current-carrying recording according to claim 1, characterized in that it is a recording head of the present invention.