JPS6362753A - Thermal transfer recording apparatus - Google Patents

Abstract

PURPOSE:To prevent the deterioration in recording quality by preventing the generation of the wrinkles or skew of an ink sheet and eliminating trouble, by mounting a supply roll and a head bracket to the same frame while securing the degree of parallel parallelism of both of them. CONSTITUTION:A supply roll 23 delivering an ink sheet 18 and a head bracket 14 supporting a thermal head 13 are mounted on the same frame 16 while the degree of parallelism of both of them is secured, and a guide roller 20 guiding the ink sheet 18 delivered from the supply roll 23 to the nip between the thermal head 13 and a platen 10 is also mounted on the same frame 16. Since the ink sheet 18 is fed along with paper 17 by the rotation of the platen 10, the generation of wrinkles or skew of the ink sheet 18 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording device that can be applied to facsimile machines and the like. In detail, the ink sheet fed out from the supply roll is overlapped with the paper and conveyed together.
The present invention relates to a thermal transfer type recording device that transfers ink from an ink sheet using a thermal head supported by a head bracket and pressed against a platen to sequentially record on an upper sheet of paper.

Previously, in this type of thermal transfer recording device, the ink sheet supply roll and head bracket were each attached to separate members.

As a result, sufficient parallelism between the ink sheet supply roll and the head bracket cannot be ensured, causing wrinkles or skew in the ink sheet as it is transported, making it impossible to record or causing deterioration in recording quality. There was a problem.

Purpose Therefore, an object of the present invention is to ensure sufficient parallelism between the ink sheet supply roll and the blade bracket in the above-mentioned thermal transfer recording device, and to prevent wrinkles or skew from occurring in the ink sheet. The objective is to eliminate troubles and prevent deterioration of recording quality.

For this reason, the present invention, for example, as shown in the embodiment of FIG. (14) to support the platen (lO
) in a thermal transfer recording device that records on the paper (17) by transferring ink from the ink sheet (18) with a thermal head (13) that presses against the supply roll (2).
3) and the head bracket (14) are attached to the same frame (16) while ensuring parallelism.

Then, the supply roll (23) and the head bracket (14)
) to ensure parallelism with the ink sheet (18) and prevent wrinkles and skew of the ink sheet (18).

The present invention will be described in detail below with reference to an embodiment shown in one drawing.

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
It is supported by a head bracket (14). The head bracket (14) is attached to the frame (16) so as to be swingable about the attachment shaft (15). And as is known.

The configuration is such that the pressing against the platen (10) can be released as appropriate.

Now, those platen (10) and thermal head (13)
), a paper (17) and an ink sheet (1g) are sandwiched between them. First, the paper (17) is loaded onto the supply roll (19).
), guided by a guide roller (20) between the platen (10) and the thermal head (13), guided by a peeling roller (21), passed through a cutter (22), and discharged to the outside. do. On the other hand, the ink sheet (18)
is fed out from the supply roll (23) and passed through the guide roller (
20) with the paper (17) and place it on the platen (10).
and the thermal head (13), and the peeling roller (
21), the ink sheet is peeled off from the paper (17) and wound around the ink sheet take-up roll (24).

Here, the roll shaft (
ZS), and the guide rollers (20) that guide the stacked paper (17) and ink sheet (18) are mounted parallel to each other on the same frame (16) mentioned above when the head bracket (14) is attached. Become.

Therefore, as shown in FIG. 2, the side plates of the frame (16) have holes (26) and (27) for mounting the mounting shaft (15), guide roller (20), and roll shaft (25), respectively.
) and (28) are opened correspondingly to the left and right.

Then, the rotation of the motor (12) is transmitted to the platen (lO), and the paper (17) and the ink sheet (18) are conveyed in a superimposed manner. However, the recording department! ! At (P), the thermal head (13) is pressed against the platen (10), and recording is performed on the paper (17) while transferring the ink from the ink sheet (18) with the thermal head (13). Then, transport the recorded area to a predetermined position and cut it with a cutter (2z
), and the recorded portion can be separated and taken out. On the other hand, the ink sheet (18) is attached to the peeling roller (2
1), it is separated from the paper (17) and wound up with a take-up roll (24). Although not shown, the rotation of the motor (12) is transmitted to the take-up roll (24) at this time.

Next, after cutting off the recording portion, the motor (12) is driven in reverse to rotate the platen (10) in reverse, and the sheets (
17) and the ink sheet (18) are both fed backwards, making it possible to start the next recording again from the new leading edge of the paper. Then, in order to perform the next recording, when the motor (12) is driven again to rotate the platen (lO) and take-up roll (24), the paper (17) and the ink sheet (18) are
It is guided again between the thermal head (13) and the platen (10).

As described above, in this type of thermal transfer recording device, the rotation of the platen (10) causes the ink sheet (
18), the thermal head (13) and the ink sheet (18), which sandwich them between the platen (10),
In order to prevent the ink sheet (18) from skewing, it is extremely important to ensure sufficient parallelism with the ink sheet supply roll (23) from which the ink sheet (18) is fed. According to this invention, by attaching the head bracket (14) that supports the thermal head (13) and the ink sheet supply roll (23) to the same frame (16), their parallelism can be easily and reliably ensured. It is something to do. Also, as in the example, the record position If! If a guide roller (20) is provided in front of (P), the guide roller (
20) must also be attached to the above-mentioned frame (16) to ensure parallelism between it and the ink sheet supply roll (23) and head bracket (14).

Therefore, according to the present invention, since the ink sheet supply roll and the head bracket are mounted on the same frame, it is easy to ensure their parallelism, prevent wrinkles on the ink sheet, and prevent skew. It is possible to reliably prevent troubles from occurring and prevent deterioration of recording quality.

[Brief explanation of the drawing]

FIG. 1 is a schematic internal mechanism diagram of a thermal transfer type recording apparatus according to an embodiment of the present invention, and FIG. 2 is a side view of a frame used in the recording apparatus.

Claims (1)

[Claims] 1. An ink sheet fed out from a supply roll is superimposed on paper and conveyed together, and the ink on the ink sheet is transferred to the paper using a thermal head that is supported by a head bracket and pressed against a platen. A thermal transfer recording device that performs recording, wherein the supply roll and the head bracket are mounted on the same frame while ensuring parallelism. 2. A guide roller that guides the ink sheet fed out from the supply roll between the thermal head and the platen is also attached to the same frame when the supply roll and head bracket are attached while ensuring parallelism. The thermal transfer type recording device according to claim 1, comprising: