JPH0612932Y2 - Printer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a printer device, and more particularly to a printer device of a type that prints on a paper fed from a roll paper and winds up and stores the printed paper.

[Conventional technology]

Conventionally, in this type of printer device, the paper winding mechanism forms the mechanism in the original sense. That is, at least a take-up shaft for taking up the paper and a motor as a power source for rotationally driving the take-up shaft are required. The sheet fed from the supply side and printed by the printing unit is given a winding force by this unique winding mechanism, and is wound around the winding shaft.

[Problems to be solved by the invention]

This conventional paper take-up mechanism requires a paper take-up shaft, a motor for driving the take-up shaft, and the like, which increases the manufacturing cost and is structurally complicated, which causes troubles at the time of take-up. Was there.

The present invention has been made in view of the above points, and an object thereof is to provide a printer device having no special paper winding mechanism.

[Means for solving problems]

The printer device according to the present invention forms a feeding section containing a roll paper and a conveyance path including a path bent in a substantially U-shape, and the paper fed from the feeding section has a substantially curl direction. A guide means that is introduced into the conveyance path so as to match the inner direction of the V-shaped bending path and guides along the conveyance path, and a print head and a paper feed drive mechanism that are provided in the middle of the conveyance path. And a space having a substantially U-shaped bent path on the inner side of the substantially U-shaped bent path and surrounded by substantially U-shaped bent paths, and the end of the transport path communicates with the space. Printed paper from the end of the transport path is guided and stored in the space, and the unprinted paper transported through the substantially U-shaped bending path is exposed in the space. So that it can contact the printed paper that is guided into the space. Are those equipped with and going on storage space.

[Action]

The roll paper stored in the supply unit is fed out by the function of the paper feed drive mechanism provided in the printing unit, guided by the guide unit, and conveyed along the conveyance path. Printing is performed on the paper at a printing unit provided in the middle of the transportation path. The printed paper is sent to the storage space. In the guiding means, the paper fed from the supply unit is introduced into the conveyance path so that the curl direction matches the inner direction of the substantially U-shaped bending path, and along the conveyance path. Since the paper is guided, the direction of the curl of the paper before printing that passes through the transport path matches the inner direction of the substantially U-shaped bent path. On the other hand, the storage space is composed of a space that is surrounded by the U-shaped bent path on the substantially three sides inside the substantially U-shaped bent path, and the end of the transport path leads to the space. Since the printed paper from the end of the transport path is guided and stored in the space, the printed paper is not surrounded by the U-shaped bending path and is printed from one side of the space. Therefore, the curl direction of the printed paper guided into the space is the direction in which the curl is not surrounded by the U-shaped bending path and is wound into the space. Since the unprinted paper that is conveyed in the substantially U-shaped bent path is exposed in the space and can come into contact with the printed paper that is guided into the space, When the unprinted paper conveyed in the U-shaped bending path comes into contact with the printed paper guided into the space,
This means that the paper conveyance direction before printing matches the curl direction of the printed paper. Therefore, the printed paper comes into contact with the unprinted paper in the transport path and moves in the curl direction following the movement of the unprinted paper, whereby the printed paper naturally winds along the curl direction in the storage space. To be Therefore, no special printed paper winding mechanism is required.

〔Example〕

The present invention will be described in detail with reference to the embodiments shown in the drawings.

The figure shows a printer device according to an embodiment of the present invention. The rotary shaft 1 is a central shaft for arranging the roll paper 2, and the upper part thereof has guide rollers 3, 4, 5, 6, 8,
10, a pinch roller 9, a large-diameter roller 11, and a printing unit 14. Within the printing unit 14, there are a print head 12 and a paper feed drive mechanism 13. Guide rollers 3, 4, 5, 6
The storage space 7 whose three sides are surrounded by the transport path formed by is a space for storing the printed paper 2a.

That is, the guide rollers 3, 4, 5, 6 form a path bent in a substantially U-shape. Further, since the inside of the roll paper 2 is inverted by the guide roller 3 so as to face the inside of the substantially U-shaped bending path, the roll paper 2
Is introduced into the conveying path so that the curl direction of the same corresponds to the inner direction of the substantially U-shaped bending path.

In this figure, the printing roll paper 2 set on the rotary shaft 1 is guided to the guide rollers 3, 4, 5, 6 arranged according to the guide means, that is, so as to face the space forming the storage space 7. Then, the sheet reaches the printing unit 14 through between the pinch roller 9 and the large-diameter roller 11 which stabilize the sheet conveyance.

The printing unit 14 includes a print head 12 and a paper feed drive mechanism 13, which are schematically illustrated, and performs printing on paper and feed drive thereof. The paper printed by the printing unit 14 then descends into the storage space 7 again according to the guide means, that is, guided by the guide rollers 8 and 10 and the large diameter roller 11.

The lower end of the storage space 7, that is, the guide rollers 3 and 4
The curled direction of the printed paper 2a that reaches the pre-printing paper transport path connecting the spaces is the same as the pre-printing paper transport direction. The power to work on is given.

Further, an auxiliary winding force is also applied to the left end of the storage space 7, that is, between the guide rollers 4 and 5, and thus the printed paper 2a is stored in the storage space 7 in combination with the curl characteristic. It will be rolled up naturally.

It should be noted that the vertical type is used in the above embodiment, but it may be a horizontal type.

[Effect of device]

As described above, the printer device according to the present invention does not use the power of the winding mechanism, the DC motor, etc., the winding shaft, etc., and has a clever structure to curl the printing roll paper and the feeding direction of the supply side paper. The printed paper can be wound up and stored in a predetermined storage space by fully utilizing.
Further, since there is no special winding mechanism, the structure of the printer device becomes simpler, and therefore, it becomes possible to eliminate troubles related to paper winding. Further, it is advantageous in terms of manufacturing cost.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a printer device according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Rotation axis, 2 ... Roll paper for printing, 2a ... Printed paper, 3, 4, 5, 6, 8, 10 ... Guide roller, 7 ... Storage space, 9 ... Pinch roller, 11 ... Large diameter roller, 1
2 ... print head, 13 ... paper feed drive mechanism, 14 ... printing section.

Claims (1)

[Scope of utility model registration request] 1. A supply section containing a roll paper and a conveyance path including a path bent in a substantially U-shape, and the paper fed from the supply section has a substantially U-shaped curl direction. A guide means that is introduced into the conveyance path so as to match the inner direction of the curved path and guides along the conveyance path; and a print head and a paper feed drive mechanism that are provided in the middle of the conveyance path. And a printing section having a space surrounded by the U-shaped bending path on the substantially three sides inside the substantially U-shaped bending path, and the end of the transportation path communicates with the space. The printed paper that has exited from the end of the path is guided and stored in the space, and the paper before printing that is conveyed through the substantially U-shaped bending path is exposed in the space. The printed paper that is guided into the space. Printer device with a space.