JPH06411B2 - Transfer recording device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a transfer paper carrying an ink transferred by heat application, which is pressed against a recording paper by a thermal head to heat the transfer paper and transfers the ink of the transfer paper to the recording paper. The present invention relates to a transfer recording device for obtaining an image by performing the above process.

Configuration of Conventional Example and Problems Thereof In recent years, this type of transfer recording apparatus has been drawing attention as an output terminal for PPC copying machines, computer graphics, facsimiles, etc., since plain paper can be used as recording paper.

FIG. 1 shows a side view of a transfer recording apparatus in a conventional example.
Reference numeral 1 is a drum around which the recording paper 2 is wound, and 3 is an untransferred transfer paper 4
Supply reel 5 for winding the transfer paper 5'for a transfer paper 4'that has been transferred, 6 a thermal head mounted on a rotatable arm 7, 8 mounted on a drum drive motor (not shown) Drum drive gear, 9 and 10 are intermediate gears for transmitting the driving force of the drum drive gear 8 to the drum gear 11,
Reference numeral 12 is a sheet drive gear attached to a sheet drive motor (not shown), and 13 is a take-up gear provided on the take-up reel 5. Transferable ink (not shown) is applied to the transfer paper 4. The thermal head 6 is provided with the recording paper 2 and the transfer paper 4 which can be pressed against and separated from the drum 1.

The operation of the conventional transfer device configured as shown in FIG. 1 will be described below.

When performing transfer, first, the recording paper 2 is wound around the drum 1, and the drum 1 rotates clockwise to the transfer start position.
At that time, the thermal head 6 is released from the pressure contact state with the drum 1 and is in the separated state. The transfer paper 4 is the sheet drive gear 1
Since 2 and the take-up gear 13 are meshed with each other, the take-up reel 5 is rotated by the sheet drive motor (not shown) to take up the recorded transfer sheet 4'and at the same time the untransferred transfer sheet 4 is removed. It is pulled out from the supply reel 3 and is at the transfer start position. When the drum 1 is rotated to the transfer start position and stopped, the thermal head 6 moves to the state shown in the figure, and the recording paper 2 and the transfer paper 4 are brought into close contact with each other and pressed against the drum 1.

The thermal head 6 is linearly provided with a heating element at a position corresponding to the pressure contact portion of the drum 1, and a signal transferred to the heating element is selectively supplied to the transfer paper 4 by the heat generation of the heating element. The applied transfer ink is transferred to the recording paper 2. The transfer is performed row by row, and each time the row is completed, the drum 1 rotates clockwise by a predetermined angle, and the next row is transferred. When the transfer of one recording sheet is completed in this way, the thermal head 6 is released from the pressure contact and separated from the drum 1, and the drum 1 rotates counterclockwise and responds to the signal supplied to the thermal head 6. The recording paper 2 on which the transferable ink has been transferred is taken out, and the transfer operation is completed. In addition, when transferring in full color, the three primary colors (magenta, cyan,
The above-mentioned transfer operation is repeated three times in a frame order of (yellow) to perform full-color transfer.

In the above structure, not only separate motors are required to drive the drum 1 and the transfer paper 4 or 4 ', but also a drive circuit for the motors is required for each motor. Also, by using multiple drive motors,
The structure of the device was complicated and large.

An object of the present invention is to solve the above-mentioned conventional problems, and to provide a transfer recording apparatus in which a drum drive source and a transfer paper drive source are commonly used to reduce the size and simplification by saving parts and labor. The purpose is to

The present invention is characterized in that it comprises a power transmission means for using the driving force of the drum driving motor as the driving force of the transfer sheet,
By driving the transfer paper with the drum drive motor by the power transmission means, downsizing and simplification are achieved.

Description of Embodiments FIG. 2 is a side view of a transfer recording apparatus according to an embodiment of the present invention. In the figure, 14 is a drum, 15
Is a recording paper, 16 is a supply reel, 17 is an untransferred transfer paper,
17 'is a transfer paper which has been transferred, 18 is a take-up reel, 19 is a thermal head, 20 is an arm, 21 is a drum drive gear, 22 and 23 are intermediate gears, 24 is a drum gear, 25 is a take-up gear, and above. This is the same as the conventional configuration in FIG. 1 is different from that shown in FIG. 1 in that the drum drive gear 21 is provided in the vicinity of the winding gear 25, and a spring 26 is provided on the arm 20 as a power transmission means between the drum driving gear 21 and the winding gear 25.
The point is that the connecting gear 28 is provided at the tip of the lever 27 biased by.

Regarding the transfer device of this embodiment configured as described above,
The operation will be described below.

When performing transfer, first, the recording paper 15 is wound around the drum 14, and the drum 14 rotates clockwise to the transfer start position. At that time, the thermal head 19 is released from the pressure contact state with the drum 14 and is in the separated state. When the drum 14 is rotated to the transfer start position and stopped, the thermal head 19 moves to the state shown in the figure, and the recording paper 15 and the transfer paper 4 are brought into close contact with each other and pressed against the drum 14. In this state, the transfer operation is started when the transfer paper 17 is at the transfer start position, but when the transfer paper 17 is not at the transfer start position, the drum 14 rotates in the clockwise direction to supply the transfer paper 17 to the supply reel 16 The drum 14 rotates until it reaches the transfer start position after being pulled out from the transfer paper 17
I will feed you. At that time, a connecting gear 28 provided at the tip of a lever 27 that interlocks with the thermal head 19 connects the drum drive gear 21 and the take-up gear 25 provided on the take-up reel 18 for taking up the transfer paper 17 ′ having been transferred. Therefore, the transfer paper 17 'sent out by the drum 14 is continuously wound around the take-up reel 18 by the amount sent out. That is, when the drum 14 is rotating, the drum drive gear 21 serves as a drive source to feed the transfer paper 17 or 17 ', and does not require a separate drive source for the transfer paper 17 or 17'. Is. The description of the transfer operation will be continued below. When the recording paper 15 and the transfer paper 17 come to the transfer start position and the transfer operation starts, a signal to be transferred to the heating element of the thermal head 19 is selectively supplied, and the transfer applied to the transfer paper 17 by the heat generation of the heating element. Ink is transferred onto the recording paper 15. When the transfer of one sheet of recording paper is completed, the thermal head 19 maintains the pressure contact state and performs the indexing to the next transfer start position of the transfer paper 17. When the cueing of the transfer paper 17 is completed, the drum 14 is stopped and the pressure contact of the thermal head 19 is released, and at the same time, the connection gear 28 that connects the drum drive gear 21 and the winding gear 25 is also released. Then drum 1
4 rotates counterclockwise, the recording paper 15 on which the transferable ink has been transferred is taken out in accordance with the signal, and the transfer operation ends. The above is the description of the single-color transfer operation. However, in the case of performing full-color transfer, after the transfer operation of the first color is completed in the transfer operation, the transfer paper 17 is cueed, the drum 14 is stopped, and the thermal head 19 is stopped. When the pressure contact is released and the connecting gear is also released, the drum 14 rotates clockwise to the transfer start position and stops. After that, the same operation as that for the first color is repeated to transfer the second color. 2 when the transfer of the second color is completed
The transfer operation similar to that for the color is repeated to transfer the third color. When the transfer of the three colors is completed, the thermal head 19 and the connecting gear 28 are released, the drum 1 rotates clockwise until the state shown in the drawing, and when the rear end of the recording paper 15 reaches a position where it can be discharged, it rotates counterclockwise. The recording paper 15 on which the full-color image has been transferred by transferring the three colors is taken out, and the transfer operation is completed.

As described above, according to this embodiment, the transfer paper 17 or 1
Since the drive source 7'is taken out from the drum drive gear 21 which is the drive source of the drum 14, a drive source for the transfer paper is not required, so that the size and simplification can be reduced by saving parts and labor compared with the conventional device. Is possible.

EFFECTS OF THE INVENTION As described above, since the apparatus of the present invention includes the power transmission means that uses the driving force of the drum driving motor as the driving force of the transfer sheet, it does not require the transfer sheet driving motor or the driving circuit. In addition, the device can be downsized and simplified, and it can contribute to cost reduction of the entire device, and its practical effect is great.

[Brief description of drawings]

FIG. 1 is a side view of a transfer device according to a conventional example, and FIG. 2 is a side view of a transfer recording device according to an embodiment of the present invention. 14 ... Drum, 15 ... Recording paper, 17, 17 '... Transfer paper, 19 ... Thermal head, 21 ... Drum drive gear, 22, 23 ... Intermediate gear, 24 ... Drum gear, 2
5 ... Winding gear, 28 ... Connection gear.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Keiko Minamino 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP 57-45072 (JP, A) Actual development Sho 58-101757 (JP, U)

Claims (2)

[Claims] 1. A drum around which a recording paper is wound, a transfer paper carrying an ink which is superposed on the recording paper and transferred by heat application, and a thermal press-contact with the drum via the recording paper and the transfer paper. A head, a drive motor for rotationally driving the drum, and a power transmission unit, and a take-up reel that winds the transfer sheet, and the motor and the power transmission unit of the take-up reel are engaged with and separated from each other. And a power transmission means for selectively transmitting power. 2. A thermal transfer recording apparatus according to claim 1, wherein the power transmission means transmits power between the drive motor and the take-up reel only when the thermal head is pressed against the drum.