JPS61179764A - Current supply type recording apparatus - Google Patents

Abstract

PURPOSE:To make it possible to reduce running cost without lowering the printing speed of a current supply recording apparatus, by forming a resistor layer and a conductive layer to one heat generating sheet to separating the same from a heat-meltable ink layer. CONSTITUTION:An electrode unit 10 consists of positive and negative electrodes 10a, 10b. A heat generating sheet 8 consists of a resistor layer 4 and a conductive layer 3 and the resistor layer 4 is formed by using a composition, prepared by dispersing conductive carbon in polycarbonate, or metal silicide while the conductive layer 3 is formed by using a vapor deposition aluminum or stainless steel film. An ink sheet 9 consists of a polyester base material layer 5 and an ink layer 6 and is separated from the heat generating sheet 8. The heat generating sheet 8 is fixed to the scanning part of the electrode unit 10 and current supply recording is performed in such a state that the ink sheet 9 and recording paper 7 are contacted with the heat generating sheet 8 in this order.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording apparatus, and particularly to an electric transfer recording apparatus that is high-speed and has low running costs.

Figure 2 shows an example of the main parts of a conventional electrical transfer recording device.
This device consists of an electrode unit and an energized transfer sheet.
The current transfer sheet is disclosed in Japanese Patent Application Laid-Open No. 59-124833, and includes a resistive layer 4, a conductive layer 3. Base material 5.
It is composed of an ink layer 6.

During recording, a voltage is applied between the positive electrode 10-a and the negative electrode 10-b, and the resistance layer 4. A current flows through the conductive layer 3 to the food mold 1110-b. At this time, the resistance layer 4
generates heat, which melts the ink layer 6 and transfers it to the recording paper 7.

Note that the electrode unit 10 shown in FIG.
nical Disclosure Bulletin
It has the same type as the electrode unit disclosed in Vol. 231 N[L9, and has a pin electrode 10-a in the center.

Dish point This recording device is capable of high-speed recording because there is no heat accumulation in the thermal head in general thermal transfer recording. but,
Since the sheet consumed during recording is composed of multiple layers including a resistive layer, a conductive layer, a base material, and an ink layer, there are problems in that the manufacturing cost of the sheet is high and the running cost is high.

The problem mentioned above is that the pin electrode and the electrode unit having the opposite polarity, the resistive layer, the conductive layer, and the heat-melting ink layer are arranged in contact with each other in this order. This is an energization recording device that applies voltage from an electrode to a resistive layer to generate heat, and uses this heat to locally melt hot melt ink and transfer it to recording paper. This is solved by an electrically conductive recording device characterized in that it is formed on a sheet 8 and separated from the heat-melting ink layer 6.

The heat generating sheet 8 may be fixed to the scanning section of the electrode unit, or may be fed in an endless loop in synchronization with the scanning of the electrode unit.

The ink sheet 9 can be a conventional thermal transfer sheet, a reusable ink sheet, or a gradation recording sheet, and is not limited to type M.

1 relic FIG. 1 shows the main parts of the energization recording apparatus of the present invention.

The electrode unit 10 includes positive and negative electrodes IQ-a and 10-b.
The zero heat generating sheet 8 consists of a resistance layer 4 and a conductive layer 3, and the resistance layer 4 has an appropriate thickness of 0.5 to 2.0 #w.
Polycarbonate with conductive carbon dispersed therein or metal silicide can be used.

A resistivity of 50 to 1,000 Ω was required for obtaining good printing. Further, for the conductive layer 3, vapor-deposited aluminum or stainless steel film can be used. The appropriate thickness of the conductive layer 3 was 2 to 10 μm. The ink sheet 9 consists of a polyester base layer 5 with a thickness of 6μI and an ink layer 6 with a thickness of 3μm.The ink layer 6 is made by dispersing a coloring material such as a carbon blank in polyamide, and roll-coating it onto the polyester film 5 or applying it to a bar code, etc. Electrode unit 10, heat-generating sheet 8, ink sheet 9, and recording paper 7 are in contact with each other in this order, and energization recording is performed.

In the embodiment shown in FIG. 3, the heat generating sheet 8 is fixed to the scanning section of the electrode unit 10.

In the embodiment shown in FIG. 4, the heat-generating sheet 8 is formed into an endless loop, and the loop-shaped heat-generating sheet is sequentially fed in synchronization with the scanning of the electrode unit 10.

The recording conditions were electrode unit 10, electrode 10-a.

As a result of setting the 1o-b mold pressure SOV and pulse width to 0.2ms, the transfer density was 1.2 to 1.40.0. I was able to get the printout. The only member consumed at this time is the ink sheet 9 consisting of the ink layer 6 and the base material layer 5, and the running cost is the same as that of thermal transfer recording using a conventional thermal head.

Since the current recording device of the present invention can repeatedly use the members of the resistive layer and the conductive layer, the running cost can be lowered without reducing the printing speed. Further, it can be similarly applied to serial type or line type printers.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the main part of the current-carrying recording device of the present invention, FIG. 2 is a cross-sectional view of the main part of the current-carrying recording device of the prior art, and FIG. 3 is a cross-sectional view of the main part of the current-carrying recording device of the present invention. FIG. 4 is an explanatory diagram of another embodiment of the energization recording apparatus of the present invention. 3... Conductive layer, 4... Resistance layer, 5... Base material layer, 6... Thermal transfer ink layer, 7... Recording paper, 8... Heat generating sheet, 9... Ink sheet , lO... Electrode unit, 10-a... Pin electrode, 1
0-b... Electrode of opposite polarity. Figure 1 Figure 2 Figure 3 Figure 4 Procedural amendment (method) June 2, 1985

Claims (1)

[Claims] 1. An electrode unit having a pin electrode and an electrode of opposite polarity, a resistive layer, a conductive layer, and a heat-melting ink layer are arranged in contact with each other in this order, and the pin electrode This is an energizing recording device that applies a voltage to a resistive layer to generate heat, and uses this heat to locally melt the heat-melting ink and transfer it to recording paper. 8 and is separated from the heat-melting ink layer 6. 2. The device according to claim 1, wherein the heat generating sheet 8 is fixed. 3. The device according to claim 1, wherein the heat generating sheet 8 is in the form of an endless loop that can be circulated.