JP3041142B2 - Printer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention conveys substantially horizontally by a roller feed the paper through the ink sheet to the paper
The present invention relates to a printer device that performs printing by crimping a thermal head .

[0002]

2. Description of the Related Art Conventionally, this type of printer device, for example, a thermal transfer printer is constructed as shown in FIGS. 2 to 4, and the conventional printer device will be described with reference to FIGS.

FIG. 2 is an explanatory side view showing a printing start state of a conventional printer, FIG. 3 is an explanatory side view showing a state in which paper of the conventional printer reaches a print start position, and FIG. FIG. 10 is an explanatory side view showing a printing state by a conventional printer device.

[0004] In FIG. 2 to FIG.
As shown in (1), it is inserted along the paper insertion guide 2 of the apparatus. The side plate 3 of the mechanism is provided with a take-up roller 4 that rotates counterclockwise. A roller angle 7 rotatably supported on a rotation shaft 6 is attached to a bent portion 5 a of the bottom plate 5 attached to the side plate 3. A pressure roller 9 that rotates idle around the center is attached.

The pressure roller 9 is pressed against the take-in roller 4 by a pressure spring 10 provided on the rotating shaft 6. As a result, the sheet 1 is guided by the sheet guide 11 and the sheet guide 12 and moves in the direction A.

A paper feed roller 13 rotating clockwise is provided on the outlet side of the lower and upper paper guides 11 in the direction A.
Are supported by the side plate 3 and provided. A pinch roller lever 14 is rotatably mounted around a lever rotation shaft 15 provided on the side plate 3, and a pinch roller 16 is rotatably supported at one end of the pinch roller lever 14.

The other end of the pinch roller lever 14 is provided with a spring 17 hung on a bent portion 5 b of the bottom plate 5.
A clockwise moment force is urged around the center 5.

As a result, the pinch roller 16 is brought into pressure contact with the feed roller 13.

The paper 1 is moved in the direction A by the take-in roller 4 and then fed into the mechanism by the feed roller 13 which rotates at a speed which is the same as the speed at which the paper is carried by the take-in roller 4. go.

Inside the mechanism, a cartridge guide 18 attached to the side plate 3 and an ink cartridge 20 supported by one end 19a of a rear paper guide 19 are mounted.

The paper 1 is an end face 2 of the ink cartridge 20.
0a, guided by the rear paper guide 19 and the bottom plate 5, and conveyed to the position 1 'as shown in FIG.

The ink cartridge 20 is provided with an ink sheet 23 wound around a supply bobbin 21 and a take-up bobbin 22.

Next, as shown in FIG. 4, a thermal head 26 fixed to one end of a head lever 25 rotatably mounted on a head lever shaft 24 provided on the side plate 3.
Is pressed down on the sheet 1 on the platen roller 27 rotatably supported by the side plate 3 by pushing down the ink sheet 23 in the ink cartridge 20.

This operation is performed by the camshaft 2 provided on the side plate 3.
The cam 29 is driven by the cam drive gear 30 (drive mechanism is not shown) around the center 8 and the guide pin 25a provided on the head lever 25 is guided by the cam groove 29a. At this time, the pressing of the pressure roller 9 to the take-in roller 4 is released in conjunction with the rotation of the cam 29 (the mechanism is not shown).

In this state, the feed roller 13 is rotated counterclockwise to move the paper 1 in the direction B, and at the same time, the winding bobbin 22 in the ink cartridge 20 is rotated clockwise to wind up the ink sheet 23. While the power is supplied to the thermal head 26, the color of the ink sheet 23 is transferred to the paper 1 by the generated heat to perform printing.

[0016]

As shown in FIG. 3, in the conventional printer device as described above, after the paper 1 is fed into the mechanism and reaches the position 1 '(print start position), as shown in FIG. As shown in (1), the thermal head 26 is pressed and printed.

As described above, in a configuration in which the paper 1 is guided by the guide provided in the mechanism at the back side of the mechanism, that is, by the bottom plate 5 and the rear photographic paper guide 19, the thermal head 26 and the ink cartridge 20 can be reduced in size. When considering the miniaturization of the entire mechanism accompanying the development, there is a problem that the space on the back side of the mechanism cannot be reduced due to the structure for guiding the paper in the mechanism.

[0018]

The present invention SUMMARY OF THE INVENTION is to solve the problems described above, abolished guide portion by the mechanism inside the inner side of the bottom plate, the cabinet for supporting the mechanism, said in the print starting position An upper guide member and a lower guide member for guiding the upper and lower surfaces of the sheet discharged from the back side of the mechanism are provided.

[0019]

According to the present invention, an upper guide member provided in a cabinet is provided.
And the lower guide member, I'm to guide the sheet discharged from the mechanism, it is possible to eliminate the mechanism inside the inner side of the bottom plate, thus, can be reduced significantly the far side of the mechanism.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the printer apparatus of the present invention will be described below with reference to FIG.

As shown in FIG. 1, the printer of the present invention has a smaller thermal head 26 and ink cartridge 20 than the conventional printer shown in FIG. Has become. As a result, the cam 29 and the rear paper guide 19
The state is closer to the front side (C side) of the apparatus than the conventional example of FIG.

Further , in FIG. 1, the bottom plate 5 is cut in the vicinity of the lower part of the platen roller 27, and the lower part of the rear paper guide 19 has a cabinet supporting the mechanism.
Paper under guide 50 provided in Tsu bets, a rear portion of the rear paper guide 19, the paper on the guide 51 which is also provided in the cabinet, respectively.

[0023] With such a structure, the sheet 1 is guided in the same form as in the conventional example, it is possible to perform the printing, as a whole mechanism, the rear portion of the space D of the cam 29 is abbreviated large Ku Ministry It takes shape.

[0024]

Since the printer device of the present invention has the above-described configuration, the paper discharged from the back side of the mechanism in which the feed roller, the thermal head, and the like are integrated at the print start position can be used. By guiding with the upper guide member and the lower guide member provided in the cabinet, the bottom plate inside the mechanism can be eliminated, and the back side of the mechanism can be greatly reduced. Therefore, as the thermal head and the ink cartridge are reduced in size, the entire mechanism can be significantly reduced in size, and the weight and cost of the entire apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing a printing start state of an embodiment of a printer device according to the present invention.

FIG. 2 is an explanatory side view showing a print start state of a conventional printer device.

FIG. 3 is an explanatory side view showing a state in which a sheet of a conventional printer device reaches a print start position.

FIG. 4 is an explanatory side view showing a printing state by a conventional printer device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper 5 Bottom plate 13 Feed roller 20 Ink cartridge 26 Thermal head 50 Paper lower guide 51 Paper upper guide

Claims (1)

(57) [Claims] 1. Integrated feed roller, thermal head, etc.
Comprising a phased mechanism, the mechanism far side of the purine by the paper said feed roller
Transport to the start position , and then move the paper
At the same time is moved in the opposite direction, by crimping the thermal head via the ink sheet to the paper,
A printer apparatus for printing, the cabinet for supporting the front texture mechanisms, the purine
Upper guide member for guiding the top surface of the sheet discharged from the mechanism back side in preparative starting position, and the mechanism back
A printer device comprising a lower guide member for guiding a lower surface of a sheet discharged from a side .