JPS63297079A - Thermal transfer type recorder - Google Patents

Abstract

PURPOSE:To achieve efficient high-grade multicolor recording, general multicolor recording and Bk monochrome recording through using a single thermal transfer type recorder, by providing two sets of thermal heads, providing one of the sets with a black monochrome ink sheet, and providing the other with a sheet- by-sheet ink sheet comprising three colors, i.e., yellow Y, magenta M and cyan C. CONSTITUTION:While a recording paper 11a is fed by a capstan roller 9 and a pinch roller 10, a thermal head-1 is lowered to press a Bk ink sheet 3 and the recording paper 11a against a platen-1, and the head-1 is appropriately energized, whereby a Bk monochrome record is obtained on the paper 11a. When recording is conducted in the condition where the head-1 is raised, the Bk monochrome record can be finally obtained by a single printing operation. When recording in each of Y, M and C colors is conducted on the Bk record by reciprocating the paper 11a at the time of Bk monochrome recording, it is possible to achieve high-grade multicolor recording based on a Bk halftone dot process or the like. Further, when recording by the head-2 and a YMC sheet-by-sheet ink sheet 8 is conducted in the condition where the head 1 is raised, general multicolor recording can be achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal transfer recording device that performs recording by transferring ink on the surface of an ink sheet to recording paper using a thermal head.

[Summary of the invention]

The present invention relates to a thermal transfer type recording device in which ink on the surface of an ink sheet is transferred to recording paper by a thermal head, and two sets of thermal heads are provided in the same recording device, and one of the thermal heads has Bk (black) color. An ink sheet consisting of a single color is provided, and the other side is Y (yellow).
A plane-sequential ink sheet consisting of three colors, 9M (magenta) and C (cyan), is provided, and each thermal head performs independent recording on the same recording paper, so that the recordings by each of the thermal heads are overlapped. By doing this, advanced multi-color recording is performed using sequential Y, M, and C ink sheets. By recording with an ink sheet and not sequentially recording Y, M, and C with an ink sheet, it is possible to perform Bk monochrome recording.

[Conventional technology]

Conventionally, thermal transfer recording devices have a 1&l thermal head and a Y
, M, C or four colors Y, M, C, Bk, or 3 m or 4 m.
Y on each of the thermal heads.

The configuration was such that M, C, Y, M, C, and Bk monochrome ink sheets were each provided independently.

[Problem that the invention seeks to solve]

In the conventional technology, for example, the thermal head of 1&[I and the Y
, M, and C, there is no single Bk color, so when outputting only one Bk color, the recording time is long. Since all three colors Y, M, and C are used, there is a lot of wasted ink sheets. However, even more advanced multicolor recording was not possible. In order to improve the above problem, 4 of Y, M, C, Bk
It has been proposed to use a color-sequential ink sheet, but 4
Because of multi-color recording, the recording time becomes longer, and when performing Bk single-color recording, the Y, M, and C portions that are not used are also fed blankly due to the sequential ink sheet, and waste is not eliminated. , Y, M to 3 or 4 sets of thermal rads
, C, Y, M, C, and Bk single-color ink sheets have the drawback that the device itself is complicated and expensive, and furthermore, the feeding distance of the recording paper is long, resulting in waste of the recording paper itself. For example, in a thermal transfer type recording apparatus in which a 31iII thermal head is provided with Y, M, and C monochrome ink sheets, the waste of ink sheets during Bk monochrome recording cannot be improved.

[Means for solving problems]

In order to solve the above problems, the present invention provides 2&[l thermal heads, one thermal head is equipped with a Bk monochrome ink sheet, and the other thermal head is equipped with a Y,
The configuration is such that three color M and C color ink sheets are provided in sequential order and recording can be performed independently on the same recording paper.

[Effect]

In the thermal transfer recording apparatus of the present invention, when performing advanced multicolor recording, gradation recording is performed on recording paper using a halftone method using a Bk monochrome ink sheet, and on top of the gradation recording using the Bk monochrome. This is achieved by superimposing multicolor recording using three-color sequential ink sheets of Y, M, and C. In general multi-color recording, this is achieved by using only sequential ink sheets for the three colors Y, M, and C. At this time, the Bk single-color ink sheet is not used, so there is no waste at all. Using only a single color ink sheet, Y
, M, C 3 color sequential ink sheets are not used, so
This makes it possible to perform printing with many advantages, such as no waste of ink sheets and high printing speed.

(Embodiment) An embodiment of the present invention will be described below based on the drawings.A recording paper 11a is taken out from a recording paper roll llb, passes through a vapor guide roller 5, and is held between a capstan 9 and a pinch roller 10 (not shown). The capstan 9 is rotated by the drive device, and the recording paper 11a is fed in both directions by the rotation of the capstan 9.The recording paper roll llb is forwardly and reversely rotated by the drive device (not shown).
It rotates in accordance with the feeding direction of the recording paper 11a, and is controlled so that the recording paper 11a does not slacken at all times. Thermal head l is Bk
The ink sheet 3 and the recording paper 11a are placed between the platen 1 and moved up and down by a drive mechanism (not shown), and the Bk ink sheet 3 and the recording paper 11a are pressed against the platen 1 by lowering the thermal head 1. The Bk ink sheet 3 is sent through ink sheet guide rollers 4a and 4b by a drive mechanism (not shown). While feeding the recording paper 11a with the capstan roller 9 and pinch roller 10,
Lower the thermal head 1 and add the Bk ink sheet 3 and recording paper 1.
1a is pressed against the platen L, and the thermal pad L is appropriately energized from a control device (not shown) to print Bk1 on the recording paper 11a.
Color records are obtained. At this time, if recording is performed with the thermal head 2 raised, a Bk monochrome recording can finally be obtained in one recording operation. Thermal head 2, YMC surface sequential ink sheet 8, and platen 2 are also thermal head 1. Bk
It is possible to perform the same operation as the ink sheet 3 and platen 1, and when performing the above-mentioned Bk monochrome recording, Y and M are printed on top of the Bk recording.

C If each color is recorded while moving the recording paper 11a back and forth, B
Advanced multicolor recording using the k halftone method etc. can be obtained. Furthermore, while keeping thermal head 1 up, move thermal head 2 and Y.
General multi-color recording can be obtained by performing recording on the ink sheet 8 sequentially on the MC plane.

〔Effect of the invention〕

As described above, the present invention has the effect that it is possible to provide a thermal transfer type recording device that can most efficiently obtain advanced multicolor recording, general multicolor recording, and Bk monochrome recording with a single thermal transfer type recording device.

[Brief explanation of drawings]

The drawings are configuration diagrams showing embodiments of the present invention. ■・・・Thermal head 1 2...Platen 1 3... Ink sheet on I3 4a, 4b, 4c, 4d = ink sheet kite roller 5...Vapor guide roller 6...Thermal head 2 7...Platen 2 8...YMC surface 1 tilted ink sheet 9...Capstan roller 10...Pinch roller 11a...Recording paper 11b...Recording paper roll that's all

Claims (1)

[Claims] Two sets of thermal heads and one of the thermal heads is provided with a single black ink sheet, and the other is provided with a surface sequential ink sheet of three colors of yellow, magenta, and cyan, and each of the thermal heads is printed on the same recording paper. A thermal transfer recording device characterized by recording independently of each other.