JPH06297791A - Printer - Google Patents

Abstract

PURPOSE:To enable various kinds of paper to be carried more slldably and positively without requiring no time and labor in handling of a paper stand. CONSTITUTION:A paper stand 11 is provided rotatably about the support shaft 19 on the printer main body, and there is provided setting means 31 that enables the paper stand 11 to be positioned and retained selectively at an angular position that can guide various kinds of paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer capable of printing various types of paper having different conveyance paths.

[0002]

2. Description of the Related Art Conventionally, as a printer, one capable of printing both single-cut sheets and continuous sheets has been widely known.

A conventional configuration of such a printer is shown in FIG.
In the figure, 1 is a printer main body. Printer body 1
The printing unit 2 (platen 3, print head 4), cut sheet paper feeding means (feeding roller 6 and the like), continuous paper feeding means (tractor 5 and the like) are built in.

In the above printer, the cut sheet P1
Is fed to the printing unit 2 by the feed roller 6 and the like, printed, and then discharged above the printer body 1. Further, as shown in FIG. 7, the continuous paper P2 is fed to the printing unit 2 by the tractor 5 or the like and printed, and then discharged to the rear of the printer body 1.

By the way, the printer body 1 has a paper stand 1 for paper guides (usually for single-cut paper guides).
1P may be attached. This paper stand 1
Since 1P is often an option, it is attached to the printer body 1 in a detachable manner. The paper stand 11P allows the single-cut sheet P1 to be more smoothly conveyed and printed.

As shown by a chain double-dashed line in FIG. 7, the printer is provided with a guide member 9 for guiding the discharging side portion so that the feeding side and the discharging side portion do not rub each other when printing the continuous paper P2. Sometimes.

[0007]

By the way, when printing the continuous paper P2 in the printer provided with the above-mentioned paper stand 11P, the paper stand 11P interferes with the discharge of the continuous paper P2 and must be removed. Take the trouble. Also, paper stand 11P
After being removed, it must be stored for the next use, but during storage, care must be taken against loss or damage, and storage management is troublesome.

In view of the above circumstances, it is an object of the present invention to provide a printer capable of more smoothly and reliably transporting various types of paper without the trouble of handling a paper stand.

[0009]

A printer according to the present invention is a printer capable of printing various sheets of paper having different conveyance paths, and a paper stand is rotatably provided around a fulcrum on the printer body. It is characterized in that a setting means capable of selectively positioning and holding the sheet is provided at an angular position capable of guiding the various sheets.

[0010]

According to the present invention having the above-described structure, when the conveyance path becomes different due to the paper switching, the paper stand is positioned and held at the angular position where the paper after switching is guided by using the setting means.

As a result, the paper stand does not need to be removed (attached) or stored every time the paper is switched, so that the handling is easy. Further, since the paper is guided by the paper stand, various papers can be carried more smoothly and reliably.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) As shown in FIGS.
Support the paper stand 11 on the printer body 1 (support shaft 1
9) is rotatably provided, and the setting means 31 can be used to selectively position and hold the paper stand 11 at an angular position where various papers (cut sheets P1, continuous papers P2) having different transport paths can be guided. It is the configuration provided as follows. The same components as those in the conventional example (FIG. 6) are designated by the same reference numerals, and the description thereof will be omitted or simplified.

The paper stand 11 includes a base member 21.
Also, it is rotatably attached to the printer body 1 via a support shaft 19 and the like. The base member 21 includes a central bearing portion 22,
It is composed of a left bearing portion 23, a right bearing portion 24, and a mounting portion 25. A through hole 22a is formed in the central bearing portion 22 along the axial direction. Also, the left and right bearings 2
3, 24 are provided on the axial center of the central bearing portion 22 at a distance from the left and right end portions of the central bearing portion 22. In each of the bearing portions 23 and 24, a hole (not shown) and a through hole 24a having the same diameter as the through hole 22a and having the same diameter are formed.

On the other hand, a left mounting portion 13 and a right mounting portion 14 are formed at the base end of the paper stand 11. The left mounting portion 13 is the central bearing portion 22 of the base member 21.
And a left bearing portion 23 are provided so as to be able to be interposed, and a through hole 13a having the same diameter as the through hole 22a and having a matching diameter is provided. Further, the right mounting portion 14 is provided so as to be interposed in the gap between the central bearing portion 22 and the right bearing portion 24 of the base member 21, and has a through hole 14a having the same diameter as the through hole 22a and matching. is doing.

Therefore, in the paper stand 11, each of the mounting portions 13 and 14 has the central bearing portion 2 of the base member 21.
2 and the left bearing portion 23, and the center bearing portion 22 and the right bearing portion 24 are aligned so as to enter the gap, and in that state, the support rod 19 is inserted into the through holes 24a, 14a, 22a, 13a and the holes. insert. This allows the paper stand 11
Is rotatably attached to the base member 21.

By mounting the mounting portion 25 of the base member 21 to which the paper stand 11 is assembled at a predetermined position above the printer body 1, the paper stand 11 is rotatably mounted on the printer body 1.

The setting means 31 is composed of the base member 21.
Side toothed portions 32, 33 provided on the side, inner toothed portions 34, 35 provided on the paper stand 11 side, and a spring 36 as a biasing means.

The external toothed portion 32 is provided on the right end outer peripheral portion of the central bearing portion 22 of the base member 21. The external toothed portion 33 is provided on the outer peripheral portion of the left bearing portion 23. Further, the inner toothed portion 34 is provided on the left mounting portion 13 of the paper stand 11 so as to be capable of meshing with the outer toothed portion 33. Further, the inner toothed portion 35 is provided on the right mounting portion 14 of the paper stand 11 so as to be capable of meshing with the outer toothed portion 32. Further, the spring 36 includes the left mounting portion 13 and the central bearing portion 22.
Is inserted between the left end of the internal tooth profile 34 (3
5) urges the paper stand 11 so that the external tooth profile 33 (32) meshes with the paper stand 11.

Next, the operation will be described. Cut sheet P
When switching from 1 to the continuous paper P2, the paper stand 11 is positioned and held at the angular position (see FIG. 3) where the continuous paper P2 can be guided by using the setting means 31.

To this end, by pressing the paper stand 11 against the elastic force of the spring 36 in the direction of arrow A, the inner tooth profile 34, the outer tooth profile 33 and the inner tooth profile 3 are pressed.
The meshing relationship between 5 and the external toothed portion 32 is released, and the paper stand 11 is brought into a rotation-free state. Next, in that state, after the paper stand 11 is positioned at an angular position (position shown in FIG. 3) that can guide the conveyance of the continuous paper P2,
Stop pressing the paper stand 11 in the direction of arrow A. Then, the paper stand 11 moves in the direction opposite to the arrow A direction in accordance with the elastic force of the spring 36, and the inner toothed portion 34
(35) meshes with the external tooth profile 33 (32). As a result, the paper stand 11 is held at the angular position where the continuous paper P2 can be guided.

Similarly, when the continuous paper P2 is switched to the cut sheet P1, the paper stand 11 is positioned and held at the angular position (see FIG. 2) where the cut sheet P1 can be guided by using the setting means 31.

As described above, it is not necessary to remove (attach) or store the paper stand 11 each time the paper is switched, and the labor can be saved.
Further, since the paper stand 11 guides the conveyance, various sheets (P1, P2) can be conveyed smoothly and reliably.

According to this embodiment, however, the paper stand 11 is provided on the printer body 1 so as to be rotatable about the support shaft 19, and the paper stand 11 is used for various papers (cut sheet P1, continuous paper P2). Since the setting means 31 capable of selectively positioning and holding at an angular position capable of guiding the paper is provided, various papers (P1, P2) can be transported more smoothly and reliably without the trouble of handling the paper stand 11. be able to.

(Second Embodiment) In a printer according to the second embodiment, as shown in FIGS. 4 and 5, the setting means 31 is formed by a stopper 42, an outer toothed portion 48 and a spring 49. The first embodiment (FIGS. 1 to 3)
The same reference numerals are given to the same constituents as those, and the description thereof will be omitted or simplified.

The stopper 42 is movably provided along the support shaft 19 on the left side of the central bearing portion 22 in the drawing through a through hole 45 into which the support shaft 19 is fitted, and the rotation stopping portion 46 thereof is a base member. A groove 47 formed in parallel with the support shaft 19 is slidably fitted in the upper portion of the shaft 21. Therefore, the stopper 42 is in the state in which it cannot be rotated,
Moved along 9.

As shown in FIG. 5, the stopper 42 is provided with an internal toothed portion 43. Incidentally, 44 is an operation protrusion. On the other hand, a concave portion 27 is formed at the base end portion of the base member 21 so as to correspond to the central bearing portion 22 of the base member 21, and the external toothed portion 4 is formed at the left end portion of the concave portion 27 in the drawing.
8 is formed so as to be able to mesh with the inner toothed portion 43. Further, a spring 49 is interposed between the stopper 42 and the left end portion of the central bearing portion 22. The spring 49 causes the stopper 42 to engage the inner toothed portion 43 with the outer toothed portion 48. We are pushing toward 48.

Therefore, in order to change the angular position of the paper stand 11, the stopper 42 is pinched by the operating projection 44 with a finger and pressed in the direction of arrow A against the elastic force of the spring 49 to form the inner toothed portion 43 and the outer toothed portion. The meshing relationship with the portion 48 is released.

As a result, the paper stand 11 is in a rotation free state. In that state, the paper stand 11
Is positioned at a predetermined angle position. After that, stopper 4
When the pressing of 2 in the direction of the arrow A is stopped, the stopper 42 moves in the direction opposite to the direction of the arrow A by the elastic force of the spring 49, and the inner toothed portion 43 and the outer toothed portion 48 mesh with each other. As a result, the paper stand 11 is held at the predetermined angle position.

As a result, similar to the first embodiment, handling of the paper stand 11 does not require much labor, and various papers (P
1, P2) can be transported more smoothly and reliably.

[0030]

According to the present invention, the paper stand is provided on the printer body so as to be rotatable about a fulcrum, and the paper stand can be selectively positioned and held at an angular position where various papers can be guided. Since the configuration is provided, various papers can be transported more smoothly and reliably without the trouble of handling the paper stand.

[Brief description of drawings]

FIG. 1 is an exploded perspective view for explaining a main part of a first embodiment of the present invention.

FIG. 2 is a view showing a state in which the paper stand is set at an angle position for single-cut sheets in the same manner.

FIG. 3 is a view showing a state in which the paper stand is similarly set at an angular position for continuous paper.

FIG. 4 is an exploded perspective view for explaining a main part of the second embodiment of the present invention.

FIG. 5 is also an exploded perspective view for explaining the positional relationship among the base member, the paper stand, and the setting means.

FIG. 6 is a diagram showing how a conventional printer prints cut sheets.

FIG. 7 is a diagram showing a manner in which continuous paper is printed by a conventional printer.

[Explanation of symbols]

 1 Printer Main Body 11 Paper Stand 19 Spindle (fulcrum) 31 Setting Means

Claims (1)

[Claims] 1. A printer capable of printing various types of paper having different transport paths, wherein a paper stand is rotatably provided around a fulcrum in a printer body, and the paper stand is selected at an angular position capable of guiding the various types of paper. A printer provided with setting means capable of positioning and holding the image.