JPS6411475B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrically conductive recording device that melts a conductive dye material on an ink sheet and transfers it to a recording paper by electric energy applied to an electrode member.

A method is already known in which solid ink is melted by heat generated by electricity and transferred onto recording paper. For example, Japanese Patent Publication No. 46-31960 discloses a method in which a conductive layer formed on the back side of a support is energized to generate heat, melting ink on the other side of the support and transferring it to recording paper that is in close contact with the ink. ing. Although this method has the advantage of being able to record on plain paper, it has poor thermal efficiency due to the diffusion of current in the conductive layer, which means that the recording paper itself needs to be preheated with a separate heat source, and the recording resolution deteriorates. It had the following drawbacks.

The present invention eliminates these conventional drawbacks,
This is an energization recording device that prevents current diffusion by applying current to mutually insulated strip-shaped conductive layers using needle electrodes, thereby making it possible to obtain clear recordings with small recording energy. This will be explained in detail below using the drawings.

FIG. 1 shows the structure of an ink sheet used in the present invention, in which a is a plan view thereof and b is a sectional view thereof. , 1 is a plurality of mutually insulated strip-shaped conductive layers, 2 is a support made of paper or plastic, etc., 3 is an ink layer in which a pigment such as carbon black or a dye is dispersed in wax, and 4 is an insulating gap. It is. The strip-shaped conductive layer 1 is formed of metal powder, carbon powder, and semiconductor material into a strip shape and is electrically insulated from each other.

FIG. 2 shows the principle of the energization recording apparatus of the present invention. A current signal from a power source 7 is applied to the conductive layer 1 by a needle electrode 6, and heat is generated between the electrodes to melt the wax in the ink layer 3, which is then transferred and recorded on the plain paper 5 facing thereto. . Note that the needle electrode 6
performs recording by moving along the band-like direction 8 of the conductive layer 1.

In this way, the current-carrying recording device of the present invention has a plurality of strip-shaped conductive layers that are insulated from each other, and conducts current through needle electrodes, which prevents current diffusion and improves thermal efficiency, thereby preheating the recording paper. Clear, high-resolution recordings can be obtained with only 1/4 of the recording energy of conventional methods, without the need for extra measures.

FIG. 3 is a perspective view of a non-impact printer showing an embodiment of the present invention, and FIG. 4 is a diagram showing the electrode portion thereof.

In FIG. 4, dot-based electrodes 6a, 6b, 6c, . is formed into a ribbon shape with sufficient length and is initially wound around the spool 108, and the electrodes 6a, 6b,
6c... and the conductive layer 1 are mounted so as to face each other,
It is sequentially wound around the winding shaft 109.

In FIG. 3, electrode groups 6a, 6b, 6c...
The carrier 10 is held by guide rods 111 and 112 and is moved in a direction perpendicular to the traveling direction of the recording paper 5.
The motor 116 is guided by a pulley 114 provided on the shaft of a motor 116 and a pulley 113 at the other end of the pulley 115 is connected to the carrier 110. A printhead 106, a spool 108 holding the ink sheet 102, and a unidirectional rotating device 117, typically equipped with a planetary gear mechanism, providing a winding motion on a winding shaft 109 are arranged in a carrier 110, as shown in FIG. The electrodes 6a, 6b, 6c... that cannot be seen are the terminal cable 10.
4 to the control section. The other cable 119 applies rotational force to the one-way rotation device 117 as the carrier 110 moves. The platen 18 wraps and holds the recording paper 5, and faces the electrodes with a predetermined pressure across the recording paper 5 and the ink sheet 102.

In the above embodiments, a plurality of mutually insulated conductive layers were provided on one side of the support, and an ink layer was provided on the other side of the support. Exactly the same effect can be obtained by forming a plurality of conductive strips and providing an ink layer, and the invention is not limited to this embodiment.

As explained above, according to the present invention, in order to prevent horizontal diffusion of current between electrodes in dot units,
The ink sheet is easy to manufacture because it uses a strip-shaped conductive layer that is insulated from each other and corresponds to the electrode in the dot unit.Also, since the conductive layer of the ink sheet is divided into multiple parts and is insulated, it is easy to manufacture the ink sheet. The current between the unit electrodes is prevented from spreading in the lateral direction, that is, from going around (preventing the current from spreading to conductive layers other than the conductive layer corresponding to the energized electrode), and the current is reduced to 1/4 of that of the conventional one.
The effect is that recording with clearer resolution can be obtained with such a small recording energy.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the structure of an ink sheet used in the present invention. FIG. 2 shows the principle of the energization recording apparatus of the present invention. FIG. 3 is a perspective view of a non-impact printer showing an embodiment of the present invention. FIG. 4 is a diagram showing an electrode portion of the non-impact printer shown in FIG. 3. 1... A plurality of mutually insulated strip-shaped conductive layers,
2...Support, 3...Ink layer, 5...Recording paper,
6... Electrode, 106... Print head, 110...
Carrier.

Claims (1)

[Scope of Claims] 1. In an energizing recording device in which a conductive layer is energized and the heat generated melts solid ink and transfers it to recording paper, a mutually insulated strip-shaped ink corresponding to dot-based electrodes provided in a print head is provided. an ink sheet consisting of a plurality of conductive layers, a support layer, and an ink layer melted by heat; and a pair of dot units arranged facing each other so as to contact each of the conductive layers of the ink sheet and conduct electricity. A printing head having a plurality of electrodes arranged thereon, a spool holding the ink sheet, a take-up shaft, and the printing head are provided, and the ink sheet is guided by a guide rod and moved left and right by a pulling wire driven by a motor. A unidirectional rotating device equipped with a planetary gear mechanism that provides a winding operation to the winding shaft, and a cable that provides rotational force to the unidirectional rotating device, and the ink sheet and the printing head are moved relative to each other. 1. An energization recording device comprising: a transfer means for automatically transferring the electricity;