JPS6266966A - Thermal transfer recording apparatus - Google Patents

Abstract

PURPOSE:To obtain a high-quality recording image by keeping the close contact state of a platen roller and recording paper with good accuracy, by providing freely rotatable first and second machine frames and providing the plate roller and a pinch roller to the first machine frame while providing a recording paper guide member to the second machine frame. CONSTITUTION:When a recording signal is inputted, the heater 10a of a thermal head 10 is selectively heated correspondingly to the input signal and recording paper 14 and an ink sheet 15 are fed to the directions shown by arrows B, C by a platen roller 11 to perform recording. The recording paper 14 and the ink sheet 15 are mutually separated while recording is performed and the used ink sheet 15 is taken up by a take-up roll 15'b while the recording paper 14 is fed out by the platen roller 11 and a pinch roller 12. At this time, because the recording paper 14 is tightly wound around the platen roller 11 by the pinch roller 12 and a guide roller, the recording paper 14 is closely contacted with the platen roller 11 without forming a gap and a high-quality recording image can be obtained at the time of recording.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a method of recording by selectively heating an ink layer coated and formed on an ink sheet by thermal heating and thermally transferring the ink onto a recording paper. The present invention relates to a thermal transfer recording device that performs.

(Prior Art) A conventional thermal transfer recording device is disclosed in, for example, Japanese Patent Application Laid-Open No. 57-1996.
As disclosed in Publication No. 71, its configuration was as shown in Figure 4 of Shin. That is, in Figure 4,
An ink sheet 4 having an ink layer formed on its surface is sandwiched together with a recording paper 3 between a thermal head 1 and a platen roller 2 and conveyed in the direction indicated by the arrow. At this time, the ink on the ink sheet 4 selectively heated by the thermal head 1 driven in accordance with the katōga signal is thermally transferred onto the recording paper 3 and recorded.

(Problem to be Solved by the Invention) However, in the configuration as described above, it is important to accurately maintain the close contact between the recording paper 3 and the platen roller 2, so it is difficult to obtain a high quality recorded image. The problem was that it was difficult to In particular, recent proposals have been made,
In a color thermal transfer recording device that uses an ink sheet coated in multiple colors and performs color recording by transporting the recording paper back and forth according to each color of the ink sheet, the above problems are solved in order to improve and maintain recording quality. The solution was important.

Further, in a thermal transfer recording device having the above-described configuration and operation, it has been a major problem to provide a means to facilitate the replacement and attachment and detachment of ink sheets and recording paper.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides thermal,
a device housing having a platen roller and a pinch roller; a first machine rotatable about a first support shaft on the housing and movable toward and away from the housing; a second machine frame having a frame and a recording paper guide member, the second machine frame being rotatable about a second support shaft on the housing so as to be movable toward and away from the housing; and a recording paper guide member. and urging means for urging the second machine frame so that it comes into pressure contact with the platen roller.

(Function) With the above configuration, when recording by conveying the recording paper and ink sheet, the pinch roller and the recording paper guide member can bring the recording paper into close contact with the platen roller with high accuracy, resulting in high quality. It is possible to stably obtain recorded images. Furthermore, by separating the first machine frame provided with the platen roller and the 20th machine frame provided with the recording paper guide member from the apparatus housing, the platen roller and the thermal head can be separated, so that the ink sheet, The recording paper can be easily attached and detached, improving operability.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 3, a thermal conductor 10 having a line-shaped heating element provided in a device casing 16 is placed at a position facing a platen roller 11 provided in a first machine frame 17. has been done.

Also, on the outer periphery of the platen roller 11, there is a pinch roller 1.
2 are in pressure contact. The 20th machine frame 18, which is rotatably provided around the support shaft 20, is provided with an idle roller 13, which is a recording paper guide member, a convex recording paper guide surface 19, and an ink sheet guide 22. .

The ink sheet 15 with an ink layer formed on its surface is pulled out from the supply roll 15m and placed in the ink sheet guide 22.
It is then guided to the take-up roll 15b. Supply roll 15a
The take-up roll 15b is attached to an ink sheet frame 21 that is detachable from the apparatus housing 16, as shown in FIG.

The gear 23 is for winding up the ink sheet 15 in the direction of arrow C.

Further, the recording paper 14 passes through the recording paper roll 14a and the recording paper guide surface 19, is wound around the platen roller 11 by the idle roller 13 and the pinch roller 12, and is conveyed while being sandwiched between the respective rollers.

The suppression spring 25 is a biasing means that biases the second machine frame 18 in the direction of the arrow and presses the guide roller 13 against the platen roller 11. The hook member 24 is for locking the tenth machine frame 17, which rotates around the support shaft 26, to the device housing 16.

Next, the operation of this embodiment will be briefly explained. When performing normal recording, when a recording start signal is input, the thermal head 10, which was separated when not recording, is moved to the platen roller 10.
The recording paper 14 is placed in pressure contact with the platen roller 11.
and pinch the ink sheet 15. When the recording signal is input,
The heating element 10a of the door 10 selectively heats the recording paper 14 and the ink sheet 1 according to the input signal.
5 is conveyed in the directions of arrows B and C by the platen roller 11, recording is performed. The recording paper 14 and the ink sheet 15 that have been conveyed while recording are separated from each other, and the used ink sheet 15 used for recording is wound up on a winding roll 15''b.

Further, the recording paper 14 is sent out by a platen roller 11 and a vinyl roller 12.

At this time, since the recording paper 14 is tightly wound around the platen roller 11 by the pinch roller 12 and the guide roller 13, the recording paper 14 and the platen roller
1 are in close contact with each other without any gaps.

Therefore, a high quality recorded image can be obtained during recording. This plays a role in reliably holding the recording paper 14 by the pinch roller 12 coming into pressure contact with the platen roller 11 during recording, and the guide roller 13 plays the role of ensuring that the second machine frame 18 is pressed against the platen roller 11 by the pressure spring 25. Since it is biased in the direction of the arrow, it comes into pressure contact with the platen roller 11, and serves to remove wrinkles and slack from the recording paper on the platen roller 11, and maintains the close contact between the recording paper 14 and the platen roller 1. This is because it can be maintained reliably and accurately.

Therefore, even when color printing is performed using an ink sheet coated with a plurality of colors of ink while transporting the recording paper back and forth, a high-quality recorded image without color shift can be obtained.

The ink sheet 15 and recording paper 14 are also consumed during recording, but when replacing these consumed ink sheets or replenishing the recording paper, it is necessary to lock the flap member 24 as shown in FIG. This can be easily done by releasing the mechanism and rotating the first machine frame 17 and the second machine frame 18 in the direction of arrow E.

Therefore, it is possible to provide a thermal transfer recording device that is easy to replace and attach/detach ink sheets and recording paper, and has excellent operability.

(Effects of the Invention) As described above, according to the present invention, a first machine frame and a second machine frame, each of which is rotatably provided, are provided for a device housing provided with a thermal door. In addition, by providing a platen roller and a pinch roller on the first machine frame and a recording paper guide member on the second machine frame, the first and second machine frames can be rotated toward the housing. Since the platen roller is pressed against the thermal head through the recording paper and the ink sheet, and at the same time the recording guide member is pressed against the platen roller through the recording paper, the state of close contact between the platen roller and the recording paper can be maintained with high precision. This makes it possible to obtain high-quality recorded images.

Further, it is possible to provide a thermal transfer recording device that is easy to replace and attach/detach ink sheets and recording paper, and has excellent operability.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a state in which the machine frame of a thermal transfer recording device according to an embodiment of the present invention is separated from the device housing, and FIG.
FIG. 3 is a side view of the thermal transfer recording apparatus, FIG. 3 is a view showing an ink sheet supply roll and take-up roll of the thermal transfer recording apparatus, and FIG. 4 is a perspective view of the main parts of the conventional thermal transfer recording apparatus. 10... To thermal, 11... Platen roller, 12... Pinch roller-113... Guide roller, 14... Recording paper, 15... Ink sheet, 1
6... Device housing, 17... First machine frame, 18...
Second machine frame 25...pressing spring. Agent Hisashi Hoshino Town Map 3

Claims (1)

[Claims] A first spindle, which rotates about a first support shaft on a device housing provided with a thermal head, is provided so as to be able to move toward and away from the device housing, and is provided with a platen roller and a pinch roller that presses against the platen roller. a second machine frame that rotates about a second support shaft on the device casing, is provided so as to be able to move toward and away from the device casing, and is provided with a recording paper guide member; , urging means for urging the second machine frame so that the recording paper guide member comes into pressure contact with the platen roller when the first and second machine frames are set in contact with the apparatus housing; and such that, when performing a recording operation, the thermal head comes into pressure contact with the platen roller through the recording paper and the ink sheet, and the recording paper guide member comes into pressure contact with the platen roller through the recording paper. A thermal transfer recording device characterized by: