JPH03215076A - Color ink ribbon cartridge - Google Patents

Abstract

PURPOSE:To allow a sharp print to be obtained by pressing a thermal head against a platen and at the same time, fixing a peel-off guide of a color ink ribbon cartridge along the lateral surface of a thermal head. CONSTITUTION:When printing is performed using a color ribbon 10, a thermal head 2 is pressed against a platen 5 and at the same time, a peel-off guide 1 of an ink ribbon cartridge 4 is fixed along the lateral surface of the thermal head 2 by the heat sink part 3 of the thermal head 2. If printing is performed under this state, the ink ribbon 10 can be peeled off after the ink becomes sufficiently solid. thus no interlayer peeling-off phenomenon occurs and a sharp color print is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a color ink ribbon cartridge for use in a thermal transfer printer.

[Conventional technology]

As shown in Fig. 2, a conventional ink ribbon cartridge 1
In No. 5, the peeling guide portion was fixed and could not be brought close to the platen 5 in order to prevent the paper from coming into contact with the ink ribbon 11 when inserting the paper. FIG. 2(a) is a diagram when no printing is being performed, and FIG. 2(b) is a diagram when printing is being performed.

[Problem to be solved by the invention]

In recent years, when thermal transfer printers are required to print on rough paper with a low surface smoothness, in order to increase the cohesive force of the ink itself and increase the cross-linking property of the ink in the recesses of the paper, instead of the conventional WAX type ink, There has been a shift to inks for rough paper that contain more resin. When printing with ink containing a large amount of resin, the ink itself has good adhesion to the ink ribbon substrate, so it is more efficient to remove the ink from the ink ribbon before it melts in the heating element and hardens. It has the property of improving.

As a method for realizing this, a real edge type thermal head as shown in FIG. 3 has been devised.

However, when printing is performed using a color ribbon, a delamination phenomenon occurs in which the ink itself returns to the ink ribbon base material, resulting in a disadvantage that the color tone of the transferred print is extremely deteriorated.

[Means to solve the problem]

The present invention records by pressing an ink ribbon coated with hot-melt ink and a recording medium against a platen with a real-edge thermal head, and selectively energizing the heating element of the thermal head to generate heat according to recording information. In the color ink ribbon cartridge used in a thermal transfer printer, a peeling guide of the color ink ribbon cartridge is fixed in parallel to an end surface of the thermal head at the same time as the thermal head is pressed against the platen.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Fig. 1 is a diagram showing an embodiment of the present invention, Fig. 1 (a) is a plan view when no printing is performed, Fig. 1 (b) and (c)
2A and 2B are a plan view and a partially transparent front view, respectively, at the time of printing.

The thermal head 2 of the color ink ribbon cartridge has a row of heating elements 2 arranged in a straight line as shown in FIG.
Reference numeral 1 constitutes a real edge type thermal head disposed on an end surface of an insulating substrate 22. As shown in FIG.

First, when printing with the color ribbon 10, FIG.
), at the same time that the thermal head 2 is pressed against the platen 5, the peeling guide 1 of the ink ribbon cartridge 4 is also pressed against the thermal head 2 by the heat sink portion 3 of the thermal head 2 (shown in FIG. 3(C)). are fixed in parallel to the end face of the When printing is performed in such a state, the ink ribbon 10 can be peeled off after the ink has sufficiently hardened, so that clear color printing can be obtained without causing delamination.

In addition, since the peeling guide 1 is rotatable, the ribbon is caught when inserting the paper and the state shown in Fig. 1(a) is used during color reading, so it is the same as a conventional ink ribbon cartridge. No problem.

Next, when printing on rough paper using Monokushi ink,
As shown in FIG. 2, the ink ribbon cartridge uses a conventional fixed peeling guide, so that the addition rate of the resin component can be reduced because the ink is peeled off before it is melted and solidified by the heating element array 21. Ink ribbons for highly rough paper are possible.

〔Effect of the invention〕

As explained above, the present invention provides a color ink ribbon cartridge with a rotatable peeling guide.
This has the effect of providing clear printing.

[Brief explanation of drawings]

FIGS. 1(a) to (c) are a plan view when not printing, a top view and a front view when printing, respectively, showing one embodiment of the present invention, and FIGS. 2(a) and (b) are respectively the conventional FIG. 3 is a perspective view of the thermal head shown in FIG. 1; FIG. l... Peeling guide, 2... Thermal head, 3... Heat sink section, 4.15...
...Ink ribbon cartridge, 5...Platen, 10.11...Ink ribbon, 2l...
. . . Heating element row, 22 . . . Insulating substrate.

Claims (1)

[Claims] A thermal transfer printer that performs recording by selectively energizing the heating element of the thermal head in accordance with recording information while pressing an ink ribbon coated with hot-melt ink and a recording medium against a platen with a real edge type thermal head. In the color ink ribbon cartridge used, a peeling guide of the color ink ribbon cartridge is fixed in parallel to an end surface of the thermal head at the same time as the thermal head is pressed against the platen.