JPS6351169A - Thermal transfer type recorder - Google Patents

Abstract

PURPOSE:To enable the recording form the top of paper to be executed by preventing the generation of skew and the deterioration of recording quality, by a method wherein paper and ink sheet are reversely fed by the reverse rotation of a platen and the paper and the ink sheet are elastically pintched between a guide roller and a pressure member in the space from respective feed rollers to a recording position. CONSTITUTION:After taking a recording part out, a platen 10 is reversely rotated by reversely driving a motor 12 and both the duplicated paper 14 and ink sheet 15 are reversely fed. Then, the next recording is again enabled to start from the top of new paper. At that time, because the paper 14 and the ink sheet 15 are elastically pinched between a guide roller 17 and a pressure plate 24, both of them are reversely fed without sagging by the stiffness of paper 14. Then, when the platen 10 and a winding roll 21 are rotated again by driving the motor 12 to carry out the next recording, the paper 14 and the ink sheet 15 are again conducted between a thermal head 13 and the platen 10. At that time, because the paper 14 and the ink sheet 15 are elastically pinched between the guide roller 17 and the pressure plate 24, they are fed between the thermal head 13 and the platen 10 without sagging.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Removal The present invention can be applied to recording devices such as facsimiles. More specifically, the present invention relates to a thermal transfer recording device that records on paper by transferring ink from an ink sheet.

BACKGROUND TECHNOLOGY Conventionally, in this type of thermal transfer recording apparatus, after recording is completed, the paper is conveyed to a predetermined position and cut with a cutter to allow the recorded portion to be taken out. However.

If the next recording is performed in this state, the margin from the leading edge of the new sheet to the recording start position will become large, which is not desirable. Therefore, both the paper and the ink sheet are fed backwards, and the next recording is started immediately from the leading edge of the new paper.

However, if the rotation of the motor is transmitted to the paper and ink sheet supply rolls, and the supply rolls are reversed to reversely feed the paper and ink sheets, the configuration becomes extremely complicated. However, if the platen is reversed and the paper and ink sheets are fed backwards without reversing the supply rolls,
There is a problem in that the paper and ink sheet sag, which causes skew or deteriorates recording quality.

Therefore, an object of the present invention is to solve the above-mentioned problems in a thermal transfer recording device, simplify the configuration, prevent occurrence of skew and deterioration of recording quality, and enable recording from the leading edge of paper. There is a particular thing.

Structure Therefore, in the present invention, for example, as shown in the illustrated embodiment, an ink sheet (15) is superimposed on a paper (14) and conveyed, and the ink sheet (15) is pressed against a platen (10) by a thermal head (13). ) is recorded on the paper (14) while transferring the ink, and after conveying the recorded portion to a predetermined position and cutting it, the overlapping paper (14) and ink sheet (15) are both reversed. send,
In a thermal transfer recording device that starts the next recording again from the leading edge of a new sheet, rotation is transmitted to the platen (10) and the ink sheet take-up roll (21) to separate the overlapping sheet (14) and ink sheet. (15) and after cutting the recording portion, the platen (
A motor (12) is provided to reversely transport the paper (14) and the ink sheet (15).
) A guide roller () which elastically clamps the paper (14) and ink sheet (15) between the respective supply rolls (16) and (20) and the recording position (P) with a pressure member (24). 17).

After recording is completed, the recorded portion is transported to a predetermined position and cut, and then the motor (17) is reversely driven to drive the platen (
10), reverse the paper (14) and ink sheet (15).
and send it back. At this time, the paper (14) and the ink sheet (15) are elastically sandwiched between the guide roller (17) and the pressure member (24), so that the paper (14) is transported backwards without slack due to its elasticity. The Rukoto. However, when performing the next recording again, the motor (12)
The platen (lO) and the ink sheet take-up roll (21) are rotated by the drive of the ink sheet (14), and the paper (14) and the ink sheet (15) are conveyed. At this time, those papers (14
) and the ink sheet (15) are moved by the guide roller (17
) and the pressure member (24), so that it is supplied between the thermal head (13) and the platen (10) without slack.

EMBODIMENT OF THE INVENTION Hereinafter, this invention will be explained in detail according to the embodiment shown in the drawings.

In FIG. 1, reference numeral (10) is a platen.

Rotation of a motor (12) is transmitted to the platen (10) via a belt (11). Further, a thermal head (13) is pressed against the outer periphery. The thermal head (13) is
As is well known, it is swingably supported so that the pressing can be released.

Now, those platen (10) and thermal head (13)
), a paper (14) and an ink sheet (15) are sandwiched between them. First, the paper (14) is loaded onto the supply roll (16).
), guided by a guide roller (17), guided between the platen (10) and the thermal head (13), guided by a peeling roller (18), passed through a cutter (19), and discharged to the outside. do. On the other hand, Inc.) - (15
) is fed out from the supply roll (20), overlapped with the paper (14) by the guide roller (17), and placed on the platen (10).
) and a thermal head (13), peeled from the paper (14) by a peeling roller (18), and wound around an ink sheet winding roll (21).

By the way, as shown in Figure 1, the above-mentioned cutter (19) etc. are placed on a frame (22) and the frame (22)
A bracket (23) is also fixed on top. As shown in Figure 2, the bracket (23) has a pressure plate (pressure member) (24) on its top surface and a mylar piece (25).
Attach it so that it can swing freely. A leaf spring (26) is fixed to the back surface of the pressure plate (24), and the leaf spring (26) is placed on the bracket (23). However, the leaf spring (26)
is slightly bent, the pressure plate (24) is lightly pressed against the above-mentioned guide roller (17), and the above-mentioned paper (
14) and the ink sheet (15) are elastically sandwiched.

Then, the rotation of the motor (12) is transmitted to the platen (10) and, although not shown, to an ink sheet take-up roll (21), so that the paper (14) and the ink sheet (15) are overlapped and conveyed. Then, the thermal head (13) is pressed against the platen (10) at the recording position (P), and the thermal head (13) records on the paper (14) while transferring the ink from the ink sheet (15). , Then, transport the recorded part to a predetermined position and cut it with a cutter ( ] 9
) to make it possible to take out the recorded portion. On the other hand, the ink sheet (15) is separated from the paper (14) by a peeling roller (18) and wound up by a take-up roll (21).

Next, after taking out the recorded portion, the motor (12) is driven in reverse to reverse the platen (10), and the stacked sheets (
14) and the ink sheet (15) are both fed backwards 7, making it possible to start the next recording again from the leading edge of the new paper. At this time, the paper (14) and the ink sheet (15) are
Since the paper is elastically clamped between the guide roller (17) and the pressure plate (24), the paper (14) is transported backwards without sagging due to its stiffness. Then, in order to perform the next recording, the motor (12) is driven again to rotate the platen (10) and take-up roll (21).
) and ink sheet (15) are placed in the thermal head (1
3) and the platen (lO).

At this time, the paper (14) and the ink sheet (15) are elastically held between the guide roller (17) and the pressure plate (24), so the thermal head (13) and the platen (
10) without any slack.

By the way, in the above-described embodiment, the pressure plate (24) is rotatably attached to the mylar piece (25) and urged by the leaf spring (26) to press it against the guide roller (17). but,
The material for rotatably attaching the pressure plate (24) is not limited to the Mylar piece (25), but may also be cloth, etc., and the material for pressing the pressure plate (24) against the guide roller (17) is not limited to the leaf spring (26). Of course, a coil spring or the like may also be used. Furthermore, the pressure member itself such as the pressure plate (24) is made of an elastic member such as a leaf spring, and the guide roller (17) uses its own elasticity.
It may be pressed against.

Moreover, as shown in FIG. 3, a guide roller (17)
is biased by a spring (27) to sandwich the paper (14) and ink sheet (15), and its guide roller (17)
The side may be lightly pressed against a pressure member (24) that is fixed to a double bracket (23) or the like.

Effects Therefore, according to the present invention, the paper and ink sheet are fed backwards by reversing the platen without reversing the respective supply rolls of the paper and ink sheet, making it possible to record from the leading edge of the paper with a simple configuration. can do. Further, since the paper and ink sheets are elastically clamped between the guide roller and the pressure member between the paper and ink sheet supply rolls and the recording position,
Even if paper and ink sheets are fed in reverse, it is possible to prevent them from sagging, prevent occurrence of skew and deterioration of recording quality, and similarly make it possible to record from the leading edge of the paper.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 show one embodiment of the present invention.
The figure shows the inside of the thermal transfer recording device according to the present invention. ! A schematic diagram of the structure, and FIG. 2 is a partially enlarged plan view thereof. Figure 3 shows
It is a mechanism explanatory diagram showing another example of this invention.

Claims (1)

[Claims] 1. An ink sheet is superimposed on a sheet of paper and conveyed, and a thermal head that presses against a platen transfers the ink on the ink sheet while recording on the sheet, and the recorded portion is conveyed to a predetermined position. In a thermal transfer recording device that transports both the stacked paper and ink sheet backwards and starts the next recording from the leading edge of a new paper, the platen and the ink sheet winding roll are A motor is provided which transmits rotation to convey the overlapping paper and ink sheet, and after cutting the recording portion, reverses the platen to convey them back, and A thermal transfer recording device is provided with a guide roller that elastically clamps paper and ink sheets between a supply roll and a recording position with a pressure member. 2. The pressure member is urged by an elastic member to press against the guide roller, and the paper and the ink sheet are elastically sandwiched between them. Thermal transfer recording device. 3. The pressurizing member is made of an elastic member, and presses against the guide roller with its own elasticity, and the paper and the ink sheet are elastically sandwiched between them. The thermal transfer recording device described above. 4. The thermal transfer recording according to claim 1, wherein the guide roller is urged to press against the pressure member, and the paper and the ink sheet are elastically sandwiched between them. Device.