JPS5865687A - Regenerating device for ink carrying body in heat transfer type recording device - Google Patents

Abstract

PURPOSE:To obtain the compact device by which ink can be uniformly applied, by constituting the regenerating device of the ink carrying body by a liquid ink scooping up roller and an ink attaching quantity controlling roller which are faced to each other and slidden on both surfaces of the ink carrying body. CONSTITUTION:An endless ink carrier 1 circulates between a heat sensitive recording head and the regenerating device. The ink carrier 1 comprises a mesh body wherein insulating fiber 1a whose diameter is several mum-100mum is woven, a grid shaped insulating film which is formed by etching a thin metal plate whose thickness is several mum-100mum. When the regenerating device is moved, the liquid ink 3 in an ink fusing tank 2 is supplied into the mesh by the scooping up roller 4 which incorporates an electric heater 4a. At this time, a compressing blade roller 5, which is slidably rotated on the ink carrier 1 scrapes the swelled ink 3 on the upper part of the mesh.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to the regeneration of ink carriers in thermal transfer recording devices.

A thermal transfer recording device requires a film coated with heat-melting ink, but in order to use this ink film repeatedly, it is made into an endless belt, and the ink coated on the L is used to record information. Recording paper I depending on
A device has already been proposed that regenerates the L by applying new ink to it after it has been transferred.Generally speaking, this regeneration means involves applying liquid ink, There is a method of applying ink pieces, and the former method, represented by the formula ``jab dipping'', is superior to the latter method in that it does not generate coating defects.
Since the method requires IIjII cypress, etc., it not only leads to an increase in the number of devices, but also has the disadvantage that, like the latter method, it is not possible to sufficiently control the amount of ink applied.

The present applicant has constructed an ink carrier that can uniformly apply ink by forming a mesh body thinner than the printing density or a porous material having countless pores, and setting the ink film thickness to the thickness of the ink carrier. When controlled by d
2. During recording, we have proposed an ink carrier that can directly heat and melt the ink and make it possible to record and copy uniformly on the recording paper. In the second part, there is a pair of rollers consisting of a liquid ink drawing roller and an ink adhesion amount control roller (by being configured to pass through the ink carrier mentioned above, it is possible to apply the ink uniformly in a small size. The purpose is to provide a new playback device, the details of which will be explained below based on the illustrated embodiment 52.

FIG. 1 is a schematic diagram showing an example of an ink carrier regeneration apparatus according to the present invention. In the figure, 1 denotes a heat-sensitive 1 sickle head and a regeneration apparatus (to be described later), which are supported by two transport rollers 5 (not shown). As shown in Figure 2, it is an endless ink carrier that circulates between
0 μm insulating ridge 1af: A mesh body with a thickness less than 5 times the printed vB thickness, or a thickness of several μm to 100 μm 1lif as shown in Figure S-2.
A lattice pattern 1b is formed by photo-etching a thin metal plate of K.
Or, as shown in Figure 4, a circular hole with a diameter of about 80 μm and an aperture ratio of 67 mm is punched into a film made of polyester or the like with a thickness of 100 μm. A perforated plate made by slicing a perforated plate rock into thin pieces is used. Depending on the cost, it is also possible to use an ink carrier 1k (FIG. 5) in which a lattice-shaped porous plate 1b and two thin films 1d are attached. Reference numeral 2 denotes an ink melting tank provided near the transport path of the ink carrier 1. Inside this tank, for example, a hot-melt ink image with a melting point of 82°C is heated to 150°C and liquefied. In the figure, a 55 m5 diameter kumage loaf 4 made of silicone rubber with a rubber hardness of 55 and a thick 7-wall wall equipped with an internal 1:150 W electric heater 4a is moved in the direction of the arrow in the figure by a driving force from an external drive source. It is pivoted so that it can rotate. 5 is a pressure-contact blade roller for controlling the amount of ink adhesion, which is disposed opposite to the four sides of the ink roller at the bottom indicated by L through the ink carrier 1;
Molded in urethane rubber material coated with Teflon,
251/al@KO is biased by a coil spring (not shown)
) The ink carrier 1 slides into contact with the ink carrier 1 with a pressing pressure, and is pivotally supported so as to rotate in the direction opposite to the moving direction of the ink carrier 1.

When the ink carrier 1 moves in the direction of the arrow in the figure in the reproducing device configured as described above, the scooping roller 4, which rotates in contact with the ink carrier 1, moves the liquid ink 6 in the ink melting tank 2.
is drawn up and supplied into the ink carrier 1 which has a mesh or porous shape. On the other hand, the pressure contact blade roller 5, which rotates in sliding contact with the ink carrier 1F, moves the ink 3 that has arrived in part C2 through the eye, relative to the ink carrier 1. Although the amount of ink 3 is scraped off according to the amount, since the relationship between both rollers 4.5 is regulated by the thickness g2 of the ink carrier 1, the film thickness of the ink 3 stored in the ink carrier 1 is as shown in Fig. 2. As shown in FIG. 2, the thickness of the ink carrier 1 and the relative movement amount of the pressure blade roller 5 are equally controlled.

As is clear from the above description, according to the present invention, a liquid ink scooping roller and a sink coating amount control roller are opposed to each other [slidingly contacted] inwardly of an ink carrier configured as a porous body. Therefore, ink supply and ink adhesion amount control can be performed at the same location, and the lid of the reproducing device can be made smaller. Moreover, since the relationship between both rollers can be made equal to the thickness of the ink carrier, the thickness of the ink stored in the ink carrier, t, is always constant depending on the thickness of the ink carrier and the spacing difference between the rollers. 1
= It is possible to form a uniform In1 degree log on the recording medium.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an example of an ink carrier regeneration device according to the present invention, and FIGS. 2 to 5 are diagrams showing embodiments of the ink carrier. 1... Ink carrier, 2... Ink melting tank, 4...
...Kumirige Roller, S...Pressure Blade Roller Agent Patent Attorney Kei Nishikawa 4 Figure 1 549-

Claims (1)

[Claims] In a thermal transfer recording system in which information is recorded using heat-melting ink on an ink carrier and is transferred to a recording medium 7, the ink carrier is transferred between a recording means and a reproducing means in an endless shape. An ink carrier in a thermal transfer recording device constituted as a porous body and provided with a liquid ink scooping roller and a roller for controlling the amount of ink adhesion that face each other and slide on both sides of the ink carrier. Playback fi [
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