JPS63193861A - Thermal transfer printer - Google Patents

Abstract

PURPOSE:To enable printing at a normal printing speed to be performed even when a printing paper poor in surface smoothness is used, by providing first and second printing heads independently with ribbon-supplying means, and causing the first and second printing heads to print the same information at the same part of a printing paper. CONSTITUTION:With a printing operation started, a carrier 5 is moved rightward, a printing head 1 performs thermal transfer printing of information at a position by using a filler ribbon 3, and then a printing head 2 prints the same information at the same position by using an ink ribbon 4. Namely, the head 1 performs thermal transfer printing by using the filler ribbon 3 coated with a filler so as to smoothen the ruggedness of the surface of printing paper, and the head 2 performs thermal transfer printing of the same information as that printed by the head 1 at the part of the paper just smoothened by the head 1, by using the ink ribbon 4. Therefore, the result of the printing is the same as that obtained when printing is conducted twice in one movement of the carrier 5.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal transfer printer, and more particularly to a thermal transfer serial printer that prints by welding ink onto printing paper using a print head.

Sarameniron I Conventionally, this type of thermal transfer printer has one print head and one ink ribbon, and can print one line of characters on printing paper by one printing operation in the line direction. It was printing.

In this one-time printing operation in the line direction, the print quality will deteriorate if printing paper with poor smoothness is used. To solve this problem, the carriage returns after printing one line. There are also thermal transfer printers that have means for printing the same line again.

With such conventional thermal transfer printers, when printing paper with a poor surface smoothness is used, after printing one line, the same line is printed again after the carriage returns, which reduces the printing speed by half. , Ink Ribbon Eraser! The drawback was that the number of 5 was doubled.

The present invention was made in order to eliminate the drawbacks of the conventional products as described above.Even when printing paper with a poor surface smoothness is used, printing can be performed at normal printing speed, and the ink ribbon can be used. To provide a thermal transfer printer capable of printing with good transferability without doubling consumption.

The thermal transfer printer according to the present invention includes first and second print heads that print on printing paper, and a ribbon supply that independently and individually supplies ribbon to the first and second print heads. The invention is characterized in that the first and second print heads print the same content on the same location on the printing paper.

Support 1 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view showing one embodiment of the present invention.

In the figure, in one embodiment of the present invention, print heads 1.2 are provided on a carrier 5, and each of these print heads 1, 2 is filled with a filler (only a transparent resin component excluding the dye of the ink). , or an ink containing a dye (it is sufficient if a component having thermal transferability is coated on the ribbon) is supplied with an ink ribbon 3 and an ink ribbon 4 for transfer.

Filler ribbon 3 supplied from filler ribbon supply section 3a
is supplied to the print head 1, and the filler ribbon winding section 3b
It is wound up by. Further, the ink ribbon 4 supplied from the ink ribbon supply section 4a is supplied to the print head 2,
The ink ribbon is wound up by the ink ribbon winding section 4b.

With the start of the printing operation, the carrier 5 moves to the right, and the print head 1 performs thermal transfer printing using the filler ribbon 3, and then the print head 2 moves to the same position where the thermal transfer printing was performed by the print head 1. The ink ribbon 4 is used to print the same content as the thermal transfer printing of the print head 1 at the location.

That is, the print head 1 performs thermal transfer printing using the filler applied to the filler ribbon 3 to smooth out unevenness on the surface of the printing paper (not shown), and the print head 2 performs thermal transfer printing using the filler applied to the filler ribbon 3. Since the ink ribbon 4 will be used to print the same content as the thermal transfer printing performed by the print head 1 on the same location on the printed printing paper, the printing result will be obtained by printing twice in one 18 stroke of the carrier 5. You will get the same result as you did.

In this way, by moving the carrier 5 once when performing - line printing, the print head 1 performs thermal transfer printing using the filler ribbon 3 to smooth out the unevenness of the printing paper, and then the print head 1 smooths out the unevenness. By using the ink ribbon 4 in the print head 2 to print the same content as in the print head 1 on the same spot on the smoothed printing paper, it is possible to print the same content as the print head 1, even when printing paper with a poor surface smoothness is used. Printing with good transferability can be performed at normal printing speeds.

Furthermore, by supplying the filler ribbon 3 to the print head 1, the amount of ink ribbon 4 consumed does not double.
Printing with good transferability can be performed.

In one embodiment of the present invention, the filler contained in the filler ribbon 3 may be only a transparent resin component or may be ink containing a dye, as long as it has thermal transferability, and the filler of the print head 1 is Although the case where the printed content and the printed content of the print head 2 are the same has been described, if the filler contained in the filler ribbon 3 is only a transparent resin component, the printed content of the print head 1 and the printed content of the print head 2 may be the same. Even if the content of the print is different from that of the print head 1, it is sufficient that the unevenness of the surface of the print paper where the print is performed by the print head 2 is smoothed by the printing by the print head 1, and the present invention is not limited to this.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described, the present invention includes first and second print heads and ribbon supply means for independently and individually supplying ribbon to the first and second print heads, respectively; By making these first and second print heads print the same content on the same location on the print paper,
Even when printing paper with poor surface smoothness is used, printing can be performed at normal printing speeds. In particular, if the printing operation is first performed using a ribbon made only of filler to smooth the printing paper, and then the actual printing is performed using an ink ribbon, the amount of ink ribbon consumed will double. This has the effect that printing with good transferability can be performed without any problems.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention. Explanation of symbols of main parts 1.2...Print head 3... Filler ribbon 4... Ink ribbon 5...Career

Claims (2)

[Claims] (1) First and second print heads that print on printing paper, and ribbon supply means that independently and individually supply ribbon to the first and second print heads, respectively, and A thermal transfer printer characterized in that a second print head prints the same content on the same location on the printing paper. (2) The ribbon supplied to the first print head by the ribbon supply means includes a filler for filling the unevenness on the surface of the printing paper, and the ribbon supplied to the second print head 2. The thermal transfer printer according to claim 1, wherein said ink contains ink for printing on said printing paper.