JPS6018365A - Thermal transfer printer - Google Patents

Abstract

PURPOSE:To secure the positional determination of a transfer material with good accuracy while reducing a non-transfer part, by providing a fixing means for fixing the transfer material and a means for moving a thermal head and platen to a printer for operating a thermal head in such a state that the thermal head, a thermal transfer material carrier body, the transfer material and a platen are overlappingly operated with each other. CONSTITUTION:In such a state that a thermal head 24, an ink film (a), paper P as a transfer material and a platen 25 are cooperated, the thermal head 24 and the platen 25 are reciprocally moved while the thermal head 24 is operated to transfer the ink a' as the thermal transfer material of the ink film (a) to the paper P. At this time, the thermal head 24 and the platen 25 are returned to the initial positions at every color ink a' of the ink film (a). In this case, the both ends of the paper P are grasped by a pair of grasping parts 31, 31 and energized to a mutually spaced apart direction by the tensile force of wrinkle smoothing springs 33, 33 to fix the paper P.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a thermal head, a transfer material carrier, a transferred body,
The present invention also relates to a thermal transfer printer in which the transfer material carried on the transfer material carrier is transferred to the transfer object by moving the thermal head with the platens superimposed in this order.

1 in the figure is a paper feed cassette, and the paper (
91 sheets of the transferred object) p are taken out by the paper feed roller 2,
After its tip is aligned by a pair of registration rollers 3, it is transferred toward a platen 4, and then pushed by a pusher roller 5,
5, it is accurately fed into a state where it is wrapped around the platen 4. On the other hand, the thermal head 6 presses the paper p2 onto the platen 4 through the ink film (transfer material carrier) a'i, and in this state, as shown in FIG. 2 Heat and melt and transfer to paper P. In addition, as shown by range A in FIG. 3, the ink film au has approximately the same size as the paper P and has yellow, magenta, and cyan ink portions a/1+ a'2 1
a/3 or each yellow, magenta, cyan, and black ink area a/lI a'2 as shown in range B in Figure 3
+a/3+a'4, and after transferring one color at a time, the paper P is returned to its original position so that it can be accurately overlapped one after another. Incidentally, an ink film a containing a black ink part a/4 is used when it is desired to produce a clear black ink, and even if it does not have a black ink part &'a't, intertwining points can be produced by overlapping three colors.

In this way, the paper P is reciprocated by the number of colors by the rotation of the platen 4, but at this time, the paper P moves between the first and second guides 8 that are sequentially arranged along the lower surface of the paper output tray 7. .9
be led upwards.

That is, first, paper P fed from paper cassette 1 is
passes through the registration roller pair 3 and the arrangement portion of the first distribution guide (not shown) and is wound around the platen 4. Next, the ink latin 4 rotates to transport the paper P', and the thermal head 6 operates, so that the ink a' of the ink film a is transferred onto the paper P. Further, the leading edge of the paper P that has passed through the platen 6 is sent onto the first guide 8 by a second distribution guide (not shown). The sheet P onto which the ink a' of one color has been transferred is transferred to the second sheet by the rotational displacement operation of the first distribution guide as the platen 4 is reversed.
is sent on Guide 9.

In this way, by reciprocating the paper P a plurality of times, a plurality of colors are transferred.

Finally, the paper P onto which all the colors of ink a' have been transferred is guided by the second distribution guide to the paper discharge roller 10 and is discharged onto the paper discharge tray 7.

As described above, in the conventional system, the thermal head 6 and platen 4 are fixed, and the iP and ink film a are fixed.
moves and transfer is performed.

However, since each color of the ink film a is returned to its original position on the paper P' and transferred from the leading edge, it cannot be securely fixed due to the clamping force between the paper PL platen 4 and the pusher rollers 5, 5. Slip or lateral deviation between paper P and platen 4 and pusher rollers 5, 5 (skiing)
As a result, the accuracy of aligning the leading edge of each color decreases, and it is difficult to ensure the positional accuracy of the paper P. Also, use a paper Pi misorah roller for positioning.

5, and many non-transfer parts are required at the leading and trailing ends of the paper P.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and its purpose is to make it possible to ensure complete positioning accuracy of the transferred object and to reduce the non-transferred portion of the transferred object. The purpose of the present invention is to provide a thermal transfer printer.

[Summary of the invention]

The present invention transfers the thermal transfer material carried by the thermal transfer material carrier to the transferred object by operating the thermal head with the thermal head, the thermal transfer material carrier, and the platen superimposed in this order. This thermal transfer printer is particularly advantageous in that it includes fixing means for fixing the object to be transferred, and moving means for moving the thermal head and platen.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 4 to 6. FIG. 4 shows the main parts of a thermal transfer printer. In the figure, 21 and 22 are rails and shafts fixed to a frame (not shown), and a bracket 23 is movable between these rails 2 and shaft 22. It is constructed in This bracket 23 has a thermal head 2
4 and a platen 25 are attached. Siraten 25
has a structure that can be attached and detached from the bracket 23 so that the ink film a serving as a thermal transfer material carrier can be easily attached and detached, and is pressed against the thermal head 24 by a spring 26 with a constant pressure when attached. .

Further, a timing belt 27 is connected to one end of the bracket 23, and is stretched between a driving belt 28 and a driven belt 29 and stretched along the shaft 22. Then, the driving Zori 28 is Nokuru Smoke 3θ
The thermal head 24 and the platen 25 are reciprocated by being driven by the thermal head 24 and the platen 25.

As shown in FIG. 5, the thermal head 24 and the platen 25 are reciprocated in a state where the thermal head 24, the paper P as the ink film a1 and the platen 25 are superimposed, and the thermal head 2
4 is operated, the ink a' of the ink film a as a thermal transfer material is transferred onto the paper P. in this case,
The thermal head 24 and platen 25 are returned to their initial positions for each color of ink a' on the ink film a. In addition, the paper P has ink a' of each color as shown in FIG.
is fixed until the transfer is completed. That is, 31.31
are a pair of clamping members, which clamp both ends of the paper P by the tensile force of paper clamping springs 32, 32, respectively, and are urged in directions away from each other by the tensile force of wrinkle smoothing springs 33, 33). The paper P is fixed by holding the paper P in place. In addition, 34... is a rubber provided on the clamping part of the clamping member.

According to the above configuration, since the paper P is completely fixed and the thermal head 24 and the platen 25 are moved, it is possible to ensure accurate positioning of the paper P.

Furthermore, since the portions of the paper P other than the portions held by the holding members 31, 31 can be transferred, the non-transfer portions of the paper P can be reduced.

〔Effect of the invention〕

As explained above, according to the present invention, the thermal head,
The thermal transfer material carried on the thermal transfer material carrier is transferred to the transferred object by operating the thermal head with the thermal transfer material carrier, the transferred object, and the platen superimposed in this order. Since the thermal transfer type glitterer is equipped with a fixing means for completely fixing the object to be transferred, and a moving means for moving the thermal head and platen, it is possible to ensure accurate positioning of the object to be transferred, and also to ensure accurate positioning of the object to be transferred. Excellent effects such as being able to reduce the transferred area? play.

3 is a plan view showing an ink film, FIG. 4 is a perspective view of essential parts showing an embodiment of the present invention, and FIG. 5 is an explanation of the operation during transfer in the same embodiment. 6 are side views showing the fixing means r of the same embodiment.

24...Thermal head, 25...f Lafn, a
...Thermal transfer material carrier (ink film), a'...
Thermal transfer material (ink), P... Transferred object, 27... Timing belt, 30... Pulse motor, 3...
Clamping member.

Applicant's agent: Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 4 Figure 5

Claims (1)

[Claims] (1) The thermal transfer material carried on the thermal transfer material carrier is transferred by operating the thermal head in a state where the thermal head, the thermal transfer material carrier, the transferred object, and the platen are superposed in this order. A thermal transfer printer configured to transfer onto the object to be transferred, characterized by comprising a fixing means for fixing the object to be transferred, and a moving means for moving the thermal head and the platen. (2) The moving means is a thermal transfer type as claimed in claim 1, in which a pulse motor is used as a driving source. (3) The moving means is a thermal transfer type, as claimed in claim 1, in which a timing belt is used as a driving force transmitting means. 1fc is a thermal transfer printer described in item 2. (4) The thermal transfer material carrier carries thermal transfer materials of multiple colors, and the moving means is configured to return the thermal head and platen to the initial position for each color of thermal transfer material.
A thermal transfer printer according to any one of claims 1 to 3.