JPH09286128A - Thermal journal printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize both side printing by applying a coating agent on the both sides of a thermal roll paper, and facilitate take-up both side printing by reeling the paper with a take-up spool in the direction opposite to the state before printing in a thermal journal printer. SOLUTION: A thermal head 1 is compressed with a certain pressure by a platen, with a thermal roll paper 3 passing therebetween to be printed in the thermal journal printer. The thermal roll paper 3 placed in a roll paper box 4 is guided to the thermal head 1 by rollers 6, 7. A spool 5 is provided for reeling the thermal roll paper 3 after printing with the thermal head 1 in the manner opposite to the state before printing. Since the thermal roll paper 3 is prepared by applying a coating agent 22 on an original paper 21 on both the surface side and the rear side, it is easy to print the thermal roll paper 3 on both the surface side and the rear side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal journal printer, and more particularly to a thermal journal printer for a POS (point of sale information management) terminal device that uses thermal roll paper as printing paper.

[0002]

2. Description of the Related Art Conventionally, in this type of thermal journal printer, a thermal roll paper to be used is coated with a coating material for coloring only on one side of a base paper. Referring to FIG. 3 showing a configuration of a conventional thermal journal printer, a thermal roll paper 3 is set in a roll paper box 4, passed between a thermal head 1 and a platen 2, and a leading end is wound around a take-up spool 5. Has been. The thermal roll paper 3 is unrolled from the inside of the roll paper box 4 and is printed when passing between the thermal head 1 and the platen 2, so that the printed surface is outside.
It is wound up by the winding spool 5. That is, the thermal roll paper wound by the take-up spool 5 is taken up with the same surface as the roll state before printing as the outside.

[0003]

In the conventional thermal roll paper, it is impossible to print on both sides of the paper because the coloring paint is applied only on one side of the paper. Also,
When the paper is unwound from the rolled state, printed by the thermal head, and then taken up by the take-up spool, it is taken up in the same direction as it was in the rolled state before printing. In this state, it was impossible to print on the back side of the paper.

[0004]

A thermal journal printer according to the present invention uses a thermal roll paper in which a coloring material is applied on both front and back surfaces of a base paper, and a roll paper box for setting the thermal roll paper, and the thermal paper A thermal head for printing on the roll paper, a platen for feeding the thermal roll paper, and a winding rotation direction that is opposite to that of the thermal roll paper in the roll paper box so that the front side and the back side before printing are reversed. And a take-up spool that rotates.

[0005]

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view showing an embodiment of the present invention.
In this thermal journal printer, the thermal head 1 is pressed by the platen 2 with a certain pressure, and the thermal roll paper 3 passes between them to perform printing. The thermal roll paper 3 is placed in a roll paper box 4 and guided to the thermal head 1 by rollers 6 and 7. Further, a winding spool 5 for winding the thermal roll paper 3 after printing with the thermal head 1 is provided.

On the other hand, FIG. 2 is a sectional view of the thermal roll paper 3, in which the coating material 22 is applied to both the front surface and the back surface of the base paper 21.

Next, the operation of the present embodiment will be described with reference to FIGS. The thermal roll paper 3 coated with the coloring material 22 on both sides of the base paper 21 and wound in a roll is put in a roll paper box 4 and the rolls 6 and 7 loosen the roll-like paper habit. 2 is printed on one side by the thermal head 1, and is wound by the winding spool 5 so that the front side and the back side before printing are reversed. The thermal roll paper 3 wound up by the take-up spool 5 after the printing of one roll of the thermal roll paper 3 is completed is taken out from the take-up spool 5, and is again put in the roll paper box 4 in that state and put in the destination. It is printed again on the side opposite to the side printed on. Therefore, the thermal roll paper 3 is printed on both the front surface and the back surface.

[0009]

As described above, according to the present invention,
Since it is possible to print on both sides of the thermal roll paper and take a journal, it is possible to reduce the running cost by effectively using the thermal paper, which is said to be able to save paper resources in half and cost high. . Further, the storage space for storing the printed journal paper can be reduced to half.

[Brief description of drawings]

FIG. 1 is a side view showing a configuration of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of thermal roll paper.

FIG. 3 is a side view showing a configuration of a conventional example.

[Explanation of symbols]

 1 Thermal Head 2 Platen 3 Thermal Roll Paper 4 Roll Paper Box 5 Winding Spool 6,7 Roller 21 Base Paper 22 Color Coating Material

Claims (1)

[Claims] 1. A roll paper box in which a thermal roll paper is coated on both sides of a base paper with a color-developing coating material, a thermal roll paper box, and a thermal head for printing on the thermal roll paper. A platen for feeding the thermal roll paper, and a take-up spool for rotating the take-up rotation direction opposite to the thermal roll paper in the roll paper box so that the front side and the back side before printing are reversed. And thermal journal printer.