JPH10100501A - Thermal recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a rolled recording sheet unit while the recorder is out of use and to reduce the recorder in size and simplify it by introducing the sheet drawn from below the unit of the recorder through between a first guide plate and a lower end of a platen and between an upper end of the platen and a second guide plate. SOLUTION: A rolled recording sheet unit 300 of the thermal recording 1 is provided on the lower left side of its body. The unit 300 has two double swingable recording sheet holding plates 320, and supports a support shaft 311 of a rolled recording sheet 310 in the state that both the plates 320 are open. The sheet 310 is drawn from below, and fed along a first guide plate 107. At the stage that an end of the sheet 310 protrudes above a platen 105, the sheet 310 is drawn out of the recorder via a second guide plate 109 and a cutter mechanism 106 to complete the setting of the sheet 310. Thereafter, a drawn type dust sheet 330 is drawn, locked to its end holding plate 320, and functioned as a cover of the sheet 310.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermal recording apparatus using a thermal head, and more particularly to a technique for manufacturing a compact and compact apparatus.

[0002]

2. Description of the Related Art As a general structure of a conventional thermal recording apparatus, all components including a roll recording paper section are provided in a main body. In particular, in a thermal recording apparatus using a thermal head having a large recording width such as an A0 size, it is difficult to reduce the size in a direction other than the direction in which the thermal head and the corresponding recording paper are arranged, that is, in the depth direction and the height direction. There was.

[0003]

For example, in order to reduce the dimension in the depth direction, it is conceivable to vertically arrange each element including the roll recording paper portion, but this requires a large height of the apparatus. turn into. Further, when trying to reduce the dimension in the height direction, each element is arranged horizontally, but in this case, the depth direction becomes large. The present invention has been made to improve this point.

[0004]

Therefore, according to the present invention, a first guide plate 107 extending downward from one side of the main body toward the center of the main body to form an upwardly inclined surface, and a lower end thereof is located above the first guide plate 107. And a second guide plate 109 provided at a height substantially coincident with the upper end of the platen 105 and extending from the platen 105 toward one side of the main body. A cover 200 configured to be openable and closable and to hold the thermal head 210 when closed when the thermal head 210 abuts against the platen 105 of the main body 100 at a predetermined pressure; A roll recording paper unit 300 disposed so that a drawer portion of the roll recording paper 310 is located at a lower part on the outer side of one side of the main body; Roll recording paper 3 drawn from
And a recording paper transporting means 103 for transporting the recording paper 10, the roll recording paper 310 pulled out from below the roll recording paper section 300 passes between the first guide plate 107 and the lower end of the platen 105, 105 top and second
It is configured to be discharged outside the apparatus via the guide plate 109.

[0005]

According to the present invention, a roll recording paper portion requiring a relatively large space is provided outside the main body.
Thus, the device can be made compact and compact when not in use.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. 1 to 3 show a first embodiment of the present invention, and FIGS. 4 and 5 show a second embodiment of the present invention.

First, the first embodiment will be described. The thermal recording apparatus 1 shown in FIG. 1 has a main body 100, a cover 200, and a roll recording paper 300.

The main body 100 includes side plates 1 provided on both sides.
01, a bottom plate 102 is formed in a square shape. A paper feed motor 103 is provided on the bottom plate 102. The paper feed motor 103 includes a transmission member 1 such as a belt and a gear.
Platen 105 so that it can rotate through
Is provided. The platen 105 is installed substantially at the center of the main body in the apparatus of this embodiment.

The first guide plate 107 is formed so as to form an inclined surface rising rightward from the lower left side of the main body toward the lower end of the platen 105.
Is provided. The right side of the first guide plate 107 is bent substantially vertically, so that the recording paper guided by the guide plate 107 can be easily wound around the platen 105. A cutter mechanism 106 is provided on the upper left side of the platen 105. This cutter mechanism 10
6, a second guide plate 109 is integrally provided. The second guide plate 109 is installed at a height substantially coincident with the upper end of the platen 105. Note that a paper presence sensor 108 is provided at the lower left of the platen 105.

The cover 200 is connected to the main body 100 via a fulcrum shaft 201 so as to be openable and closable. A head support 211 holding a thermal head 210 is attached to the cover 200. Thermal head 21
The spring 212 is acted on the back surface of the valve 0 to apply a predetermined pressure. Head guides 213 are provided at both ends of the thermal head 210, respectively.
10 is configured to appropriately abut the platen 105 via the recording paper.

In the apparatus of this embodiment, the roll recording paper unit 300 is formed on the lower left side of the main body. As shown in FIG. 2, when viewed from the front, two recording paper holding plates 320 are provided so that the double door can be opened below the front. These recording paper holding plates 320 are provided with a flange 321 and a notch 323, respectively.

As shown in FIG. 1, the recording paper holding plate 320 is opened, the support shaft 311 of the roll recording paper 310 is engaged with both flanges 321, and the roll recording paper 310 is set. In this case, the roll recording paper 310 is set so that the recording paper drawer is located downward. Then, the roll recording paper 310 is pulled out from below, and
0 is fed out along the first guide plate 107. When the leading end of the roll recording paper 310 comes out above the platen 105,
The recording paper 310 is pulled out of the apparatus via the second guide plate 109 and the cutter mechanism 106. Thus, the setting of the roll recording paper 310 is completed. Roll recording paper 31
0 is transported through the path described above.

Further, in this embodiment, the pull-out type dust sheet 33 is provided substantially at the center on the left side of the main body 100.
0 is provided. The dust sheet is constantly urged in the winding direction by a spring (not shown). With the roll recording paper 310 set as described above, the pull-out type dust sheet 330 is pulled out, and the recording paper holding plate 3 is pulled out.
The tip is engaged with a notch 323 provided below 20. The dust sheet 320 functions as a cover for the set roll recording paper 310.

As described above, with the roll recording paper 310 set, the cover 200 is closed. The thermal head 210 is guided by the head guide 213 and comes into contact with the platen 105 at a predetermined pressure via the recording paper. A predetermined drawing can be performed in response to a command from an image holding unit (not shown). When the drawing is completed, the drawn recording paper is cut by the cutter mechanism 106.

When the apparatus is not used, it is as shown in FIG. The roll recording paper 310 is removed, and the recording paper holding plate 320 is closed. As described above, the apparatus of this embodiment can be made compact and compact when not in use, which is extremely convenient for carrying around. In particular, in order to secure a recording width such as A0 size, in a device using a long thermal head, a long platen and a wide recording paper, the dimensions in the depth and height directions can be reduced and the weight can be reduced. This effect is great.

Note that, as shown in FIG.
The platen 10 of the recording paper 310 is pulled out from the lower side of one side of the main body, wound around a platen 105 at the center of the main body, and further formed as a transfer path for discharging to the one side of the main body.
5 can be increased. Increasing the wrap angle can prevent the recording paper 310 from slipping, and has the advantage of performing accurate paper feeding.

Further, in such a recording apparatus,
There has been a case where a so-called transfer paper in which a thermal transfer sheet is adhered to the entire surface side of the recording paper with a relatively weak adhesive force is used. Roll recording paper using such transfer paper is commercially available, but when such a roll recording paper is reversed in the roll winding direction, the thermal transfer sheet attached to the recording paper surface is reversed. Peeling wrinkles may occur in the portions, and missing or the like may occur in the printed image. In the above embodiment, the recording paper 31
Since a transfer path in the same direction as the roll winding direction of 0 (no reverse folding of the roll recording paper 310) can be taken,
Even when transfer paper is used, it is possible to prevent wrinkles and the like due to peeling between the recording paper and the thermal transfer sheet attached to the recording paper, and to obtain an image having high recording quality.

It is desirable that a dust sheet serving as a cover of the recording paper 310 be subjected to an antistatic treatment. This can prevent the transferred roll recording paper 310 from being charged, thereby reducing paper feeding failure and the like.

Next, an apparatus according to a second embodiment of the present invention will be described with reference to FIGS. The apparatus of the second embodiment differs from the apparatus of the first embodiment only in the roll recording paper section 300. Therefore, here, the roll recording paper unit 300 of the second embodiment will be described.

The roll recording paper unit 30 of the apparatus of the second embodiment
0 uses the roll recording paper packaging box 340. As shown in FIG. 4, a roll recording paper packing box 340 of the apparatus of this embodiment is provided.
Are formed of rigid paper, and the inner lid 344 is
And an outer lid 342. The roll recording paper 310 is inserted into the packing box together with the flange 343. In addition, a window 34 is provided on the surface where the inner lid 344 is folded back.
1 is provided.

First, the recording paper packing box 340 is opened, and the roll recording paper 310 is taken out. Next, the left protrusion 346 of the inner lid 344 is bent inward. Also, at this time,
A dust sheet 345 coated with an antistatic agent is attached to the tip of the inner cover 344. Then, the roll recording paper 310 once taken out and its flange 343 are set in the packing box 340 again. In this case, it is desirable to provide a positioning structure for the flanges at both ends so that the roll recording paper 310 is set at a predetermined position.

Then, as shown in FIG.
40 is set in the thermal recording apparatus 1. The positioning is performed by pushing the outer lid 342 of the packing box 340 below the device 1.
In this case, a guide groove for guiding the outer lid 342 may be provided at the bottom of the main body. With this configuration, the protrusion 346 of the inner lid 344 projects from the window 341 on the upper surface. The roll recording paper 3 is
By adding a scale indicating the remaining amount of 10, the remaining amount of recording paper can be displayed.

Since the folded inner cover 344 itself has a spring property, the inner cover 344 can be lowered depending on the amount of recording paper to be reduced, and the remaining amount can be accurately displayed. Since the charged dust sheet 345 is attached to the inner cover 344, dust on the roll recording paper 310 can be removed and the generation of static electricity can be prevented.

As described above, in this embodiment,
Since the roll recording paper section 300 is formed of recording paper packaging material, it is not necessary to add various configurations to the apparatus side.
It can be implemented at a lower cost.

In the above embodiment, the roll recording paper is used. However, a cut sheet may be used. That is, in the apparatus of the first embodiment, the two recording paper holding plates 320 are opened,
In the apparatus of the embodiment, the cut sheets may be attached with the roll recording paper unit 300 removed.

[0026]

As described above, according to the present invention, it is possible to realize a small-sized thermal recording apparatus having high paper feeding accuracy.

[Brief description of the drawings]

FIG. 1 is a side view showing a thermal recording apparatus according to a first embodiment of the present invention.

FIG. 2 is a front view showing the recording paper holding plate of FIG. 1;

FIG. 3 is a side view showing a state when the first embodiment is not used.

FIG. 4 is a perspective view illustrating a configuration of a roll recording paper unit of the second embodiment.

FIG. 5 is a side view showing the state of use of the device of the second embodiment.

[Explanation of symbols]

100: main body 200: cover 300: roll recording paper 105: platen 107: first guide plate 109: second guide plate 210: thermal head 310: roll recording paper

Claims (2)

[Claims] 1. A first guide plate 107 extending from the lower side of one side of the main body to the center of the main body to form an inclined surface facing upward, and a platen 105 having a lower end provided above the first guide plate 107 at a predetermined interval. And the platen 105 is provided at a height substantially coincident with the upper end of the platen 105.
A main body 100 having a second guide plate 109 extending from the main body 5 to one side of the main body, and a thermal head 210 configured to be openable and closable and held when the main body 100 is closed, A cover 200 configured to abut against the main body 100 at a predetermined pressure;
A roll recording paper section 300 in which the drawer section 10 is positioned downward, and recording paper transport means 103 for transporting the roll recording paper 310 pulled out from the roll recording paper section 300. The roll recording paper 310 pulled out from below the recording paper unit 300 passes between the first guide plate 107 and the lower end of the platen 105, and is further discharged outside the apparatus via the upper end of the platen 105 and the second guide plate 109. A thermal recording apparatus characterized in that the thermal recording apparatus is configured to be operated. 2. The roll recording paper section 300 includes a roll recording paper packing box 330.
The thermal recording device as described.