JPS61118283A - Thermal transfer recorder - Google Patents

Abstract

PURPOSE:To attain the cost reduction and miniaturization of a thermal transfer recorder by reducing the number of parts by using a drive source of a paper feeding roller in common as a drive source for a winding reel. CONSTITUTION:A drive motor 26 is actuated to send out a recording paper 20 from a cassette 31 by a paper feeding roller 27. When the paper 20 is held by a holder 21 provided to a drum 19, a thermal head 25 goes up and pressingly contacts with the drum 19 through the paper 20 and transfer papers 23 and 23'. The thermal head 25 is electrically energized according to signals, and a colorant coated on the paper 23 is transferred to the paper 20. Under the condition, the drum 19 is turned counterclockwise. During the period, the intermediate gear 32 is kept contacting with the winding reel gear 33, and the papers 22 and 23' are wound around a winding reel 24 by driving force from the drive motor 26. In the same way, plural colorants are transferred to complete a color recording. The thermal head 25 is then lowered to its home position, the drum 19 is turned clockwise, and the paper 20 is discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a thermal transfer recording apparatus that performs recording by thermally transferring ink applied to a transfer paper onto the recording paper using heat from a recording head such as a thermal head.

2. Description of the Related Art In recent years, there has been an increasing demand for devices that make color hard copies of displays such as CRTs.In particular, thermal transfer recording, which uses color transfer paper and sequentially transfers images onto recording paper, is a low-noise method that requires no maintenance. equipment is required.

One conventional thermal transfer recording device will be explained below.

FIG. 3 shows a side view of a conventional thermal transfer device.

1 is a drum that winds a recording paper 2 cut to a specified size; 3 is a holder that holds the recording paper 2;

4 is a supply reel that winds the untransferred transfer paper 6, 6 is a take-up reel that winds the transferred transfer paper 6', and 7 is a take-up reel.
8 is a drive gear attached to the drive motor 7; 9 is an intermediate gear that transmits the driving force of the drive gear 8 to the take-up reel gear 10; 11 is a cassette of recording paper 20; 12 is a recording paper from the cassette 11. A paper feed roller that feeds the paper 2; 13 is a drive motor that drives the paper feed roller 12; 14;
1 is a drive gear attached to the drive motor 13; 16 is an intermediate gear that transmits the driving force of the drive gear 14 to the paper feed roller gear 16; 17 is a paper guide; and 18 is a thermal head that connects the drum 1.
It is provided so that it can be pressed into contact with and separated from it.

The operation will be explained below.

When performing transfer, first, the drive motor 13 is driven, and the recording paper 2 is sent out from the cassette 11 by the paper feed roller 12, and is held by the holder 3 provided on the drum 1. Then, the drum 1 rotates to the transfer start position. At that time, the thermal head 18 is separated from the drum 1.

When the drum 1 stops, the thermal head 18 comes into pressure contact with the drum 1 via the recording paper 2 and the transfer paper 5.5"ii.
Ru. The thermal head 18 generates heat according to the signal,
The dye applied to the transfer paper 6 is transferred to the recording paper 2. Next, the drum 1 rotates counterclockwise to perform sequential transfer. At this time, the transfer paper 6, 5' is wound up by the winding wheel 6I/i: to which the driving force of the drive motor 7 is transmitted. When the first color transfer is completed in this manner, the thermal head 18 is separated from the drum 1.

In this state, the drum 1 rotates counterclockwise, and when the transfer start position of the first color reaches the heat generation position of the thermal head 18, the rotation of the drum 1 stops. During this time, the transfer paper 5, 6' is wound up by the take-up reel 6 until the second color reaches the heat generating position of the thermal head 18. When the above operations are completed,
The thermal head 18 is pressed against the drum 1t again, and the second color is transferred onto the first color. Thereafter, a plurality of dyes are transferred in the same manner to obtain a color barcopy.

Problems to be Solved by the Invention However, in the conventional configuration as described above, not only a separate motor is required for the drive source of the paper feed roller and a drive source of the transfer paper, but also a drive circuit for each motor is required. becomes. Furthermore, the use of a plurality of drive motors has made the device bulky.

The present invention solves the above-mentioned conventional drawbacks, and provides a thermal transfer recording device that uses a common drive source for a paper feed roller and a take-up reel to reduce costs and reduce size by reducing parts. The purpose is to

Means for Solving the Problems The present invention includes a drum for winding recording paper cut to a specified size, a transfer paper having ink that is transferred by applying heat, and a recording paper and transfer paper placed on this drum. A thermal head that is pressed into contact with the transfer paper, a cassette that stores this recording paper, a paper feed roller that feeds the recording paper from this cassette to the drum, a take-up reel that winds up this transfer paper, and a paper feed roller and winding A rotatable arm has a drive motor that drives the take-up reel, a power transmission section that selectively transmits the driving force of the drive motor to the paper feed roller and the take-up reel, and this arm is pressed into contact with the thermal head. , is provided with a lever that rotates in conjunction with the separation.

Effects With this configuration, the drive source for the paper feed roller and the take-up reel are shared, thereby achieving cost reduction and miniaturization.

Embodiment FIG. 1 shows a side view of a thermal transfer recording apparatus according to an embodiment of the present invention. 19 is a force of specified size.

A drum winds the recorded paper 20, 21 is a holder that holds the recording paper 20, and 22 is an untransferred transfer paper 23.
24 is the transferred transfer paper 23'
26 is a thermal head, 26 is a paper feed roller 27, and a take-up reel 24f! : a drive motor to be driven; 28 a drive gear attached to the drive motor; 29 an intermediate gear that transmits the driving force of the drive gear 28 to the paper feed roller gear 3o; 31 a cassette containing the recording paper 20;
2 is a drive gear, an intermediate gear that transmits the driving force of 28 to the take-up reel gear 33; 34 is an arm that is rotatably supported on a shaft 41 and has an intermediate gear 29 attached to its tip; 35, one end of which is attached to the shaft 4;
It is an arm that is rotatably supported by a shaft and has an intermediate gear 32 attached to the other end, and is always heated clockwise by a spring 36, and the clockwise rotation is stopped by a stopper 37 provided on the arm 34. ing. 38 is a spring, 39 is a paper guide, and 40 is a lever for mounting the thermal head 25 and rotating the arm 34.

The operation of the thermal transfer recording apparatus of this embodiment configured as described above will be explained below.

When performing transfer, the thermal head 25 is separated from the drum 19 as shown in FIG. The driving force of 26 is transmitted to the paper feed roller 2. On the other hand, the intermediate gear 32 is connected to the arm 35 by a stopper 37 provided on the arm 34.
is pushed down and separated from the take-up reel gear 33. In this state, the drive motor 26 is driven and the paper feed roller 27 feeds the recording paper 2o from the cassette 31. When the recording paper 20 is held by the holder 21 provided on the drum 19, the thermal head 2
6 rises to the position shown in FIG. At this time, the lever 40 pushes up one end of the arm 34, and the arm 34
The intermediate gear 29 rotates clockwise around , and the intermediate gear 29 separates from the paper feed roller gear 30.

On the other hand, as the stripper 37 rises due to the rotation of the arm 340, the arm 36 also rotates clockwise due to the urging force of the spring 36, and the intermediate gear 32 is pressed against the take-up reel gear 33, and the driving force of the drive motor 26 is transmitted to the winding wheel 24. The drum 19 then rotates counterclockwise to the transfer start position. Then, when the drum 19 stops, the thermal head 26 moves the recording paper 20 and the transfer paper 23.23"!i
It is pressed into contact with the drum 19 via the drum 19. At this time, the arm 34 is further pushed up by the lever 40, but the intermediate gear 3
2 is attached to the arm 35, so the take-up reel gear 3
3, the thermal head 25 can be brought into pressure contact with the drum 19 without any problem. The thermal head 25 generates heat in response to the signal, and the dye applied to the transfer paper 23 is transferred to the recording paper 2.
Transferred to 0. In this state, the drum 19 rotates counterclockwise to sequentially transfer images. During this time, the intermediate gear 32 is a groove pressed against the take-up reel gear 33, and the transfer paper 23, 2
3' is wound up by the take-up reel 24rC to which the driving force of the drive motor 26 is transmitted.

When the first color transfer is completed in this manner, the thermal head 25 descends to the position shown in FIG. 2.

In this state, rotate one drum counterclockwise.

When the first color transfer start position reaches the heat generation position of the thermal head 25, the rotation stops. During this time, the transfer paper 23 is
The paper is wound up by the winding wheel 24 until the color reaches the heat generating position of the thermal head 26.

When the above operations are completed, the thermal head 25 presses against the drum 19 again, and the second color is transferred onto the first color.

In the same manner, when color recording is completed by transferring a plurality of dyes, the thermal head 26 descends to the position shown in FIG. At this time, the lever 4o is separated from the arm 34, and the arm 34 is urged by the spring 35 and rotates counterclockwise around the drive gear 28. As a result, the arm 35 is pushed down by the stopper 37 provided on the arm 34, the intermediate gear 32 is separated from the take-up reel gear 33, and the intermediate gear 29 is pressed against the paper feed roller gear 30. When the above operations are completed, the drum 19 rotates clockwise, ejects the recording paper 20, and completes the operation.

As described above, according to this embodiment, since the drive source for the paper feeding roller 27 and the drive source for the take-up reel 24 can be shared, the device can be configured with fewer parts than the conventional device, resulting in lower costs and lower costs. Miniaturization can be achieved.

Effects of the Invention As described above, according to the apparatus of the present invention, there is no need for separate drive motors, drive circuits, etc. for the drive source of the paper feed roller and the drive source of the take-up reel, resulting in cost reduction and miniaturization. can be easily achieved, and its practical effects are great.

[Brief explanation of the drawing]

1 and 2 are side views of a thermal transfer recording apparatus according to an embodiment of the present invention, and FIG. 3 is a side view of a conventional thermal transfer recording apparatus. 19...Drum, 20...Recording paper, 2
2... Supply reel, 23.23'...
Transfer paper, 24... winding') -/I/, 25
...Thermal Henro l', 26... Drive motor, 27... Paper feed roll, 28...
Drive gear, 29.32...Intermediate gear, 30...
...Paper feed roll gear, 31...Cassette,
33...Take-up reel gear, 34...Arm, 35...Arm for attaching intermediate gear 32, 4
0...Lever. Name of agent: Patent attorney Toshio Nakao and 1 other persontq
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Claims (1)

[Claims] A drum that winds recording paper cut to a specified size, a transfer paper having ink that is transferred by applying heat, a Searl head that is pressed against the drum via the recording paper and the transfer paper, and the recording paper. a cassette containing a cassette, a paper feed roller that feeds recording paper from the cassette to the drum, a take-up reel that winds up the transfer paper, and a drive motor that drives the paper feed roller and the take-up reel. , a rotatable arm having a power transmission section that selectively transmits the driving force of the drive motor to the paper feed roller and the take-up reel; and the arm is rotated in conjunction with the pressing and separating of the thermal head. A thermal transfer recording device characterized by having a lever for moving the device.