JPH05309927A - Ribbon cassette of printer - Google Patents

Abstract

PURPOSE:To facilitate the attachment and detachment of a ribbon cassette and to reduce cost by reducing the number of the parts of a printer main body. CONSTITUTION:A rib 14 for guiding paper is provided to the upper surface of the cover of a ribbon cassette 10 so as to be unified with the cover and a rib 11 for guiding paper is provided to the under side of the case of the ribbon cassette 10 so as to be unified with the case. The paper 1 in an A-direction is guided by a paper guide 9 and the rib 11 to be printed by a printing head 12 and subsequently guided by a paper guide 13 and the rib 14 to be discharged in a B-direction. The ribbon cassette 10 can be attached and detached only by opening a lid in a C-direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ribbon cassette used in a serial printer, and more particularly to a ribbon cassette provided with a guide for running paper.

[0002]

2. Description of the Related Art A conventional ribbon cassette is designated by reference numeral 1 in FIG.
As indicated by reference numeral 0a, a paper which is located between the sheet 1 sucked in from the direction of arrow A and the sheet 2 discharged in the direction of arrow B, and has a function as a guide for the upper side of the sheet to be sucked is provided at the bottom of the ribbon cassette 10a. The ribbon cassette 10a has a guide 3 and a paper guide 4 on the upper side of the ribbon cassette 10a, which serves as a lower guide for the paper to be ejected, and which can be opened and closed around a hinge 5 for attaching and detaching the ribbon cassette 10a. It has a structure.

[0003]

In this conventional ribbon cassette, it is necessary to perform two operations of opening the lid provided on the housing for attaching and detaching the ribbon cassette, and then opening the paper guide on the discharge side. However, it was difficult for the user to replace the ribbon cassette. In addition, a mechanism for opening and closing the paper guide on the discharge side and a paper guide on the suction side at the bottom of the ribbon cassette must be provided, and the number of parts is large and the cost is high because of complexity.

[0004]

According to the present invention, in a ribbon cassette of a front operation type printer, the ribbon cassette is arranged between a sheet suction side guide and a sheet discharge side guide of a printer body and faces the sheet suction side guide. A ribbon cassette main body is integrally formed with a first rib for guiding the sucked paper and a second rib for guiding the paper discharged facing the paper discharge side guide.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a printer using one embodiment of the present invention, FIG. 2 shows a ribbon cassette of this embodiment, (a) is a plan view, and (b) is a line XX of FIG. A sectional view and FIG. 3 are longitudinal sectional views of FIG.

As shown in FIG. 1, in a front operation type printer, a ribbon cassette 10 of the present embodiment is a sheet 1 which is sucked in from the direction of arrow A and a sheet 2 which is discharged in the direction of arrow B.
And is mounted so as to surround the platen 6. The sheet 1 sucked in the direction of arrow A from the sheet suction port 8 of the printer front portion 7 is guided by the paper guide 9 on the lower side,
The upper side is a rib 11 provided at the bottom of the ribbon cassette 10.
It is guided to the platen 6 and is printed by the print head 12. Next, after printing, the discharged paper 2 is
The upper side is guided by the paper guide 13, and the lower side is guided by the ribs 14 provided on the upper side of the ribbon cassette 10, and comes out from the paper discharge port 15 of the printer front section 7.

As shown in the shape of the ribbon cassette of this embodiment in FIG. 2, a rib 14 for guiding discharged paper is integrally formed with the cover 16 on the upper side of the cover 16 of the ribbon cassette 10. Ribbon cassette 1
On the lower side of the case 17 of 0, ribs 11 for guiding the sucked paper are integrally formed with the case 17, and are comb-shaped from the cover 16 and the case 17, respectively. ..

The operation will be described with reference to FIG. 3. The sheet 1 sucked in the direction of the arrow A on the front surface 7 of the printer is guided by the ribs 11 and the paper guide 9 provided at the lower portion of the ribbon cassette 10, and the platen. It is sent by the pressure roller (A) 18 and the pressure roller (B) 19 which are pressed against the plate 6 and the platen 6. Next, the paper sent to the platen 6 is printed by the print head 12, the direction is changed by 180 ° on the platen 6, and the paper is passed between the paper guide 13 and the center guide 20 provided on the platen 6, The sheet is fed by a feed roller (A) 21 attached to the paper guide 13 and a feed roller (B) 22 attached to the center guide 20. The paper 2 fed by the feed roller (A) 21 and the feed roller (B) 22 is guided by the ribs 14 provided on the upper part of the ribbon cassette 10, and the printer front portion 7
It comes out from the paper discharge port 15 of. Further, the ribbon cassette 10 of the present embodiment is detachable, and the detachment thereof will be described. In order to attach / detach the ribbon cassette 10, the lid 24 provided on the housing 23 is opened in the direction of arrow C with the hinge 25 as the center of rotation. At this time, since there is no extra paper guide, the ribbon cassette 10 can be attached and detached.
In this way, the ribbon cassette 10 can be attached and detached by one operation, so that the operability can be improved.

[0009]

As described above, according to the present invention, since the ribs for the paper guide are integrally formed on the upper and lower sides of the ribbon cassette, the conventional two paper guides can be eliminated and the cost can be reduced. it can. Further, since the paper guide on the upper side of the ribbon cassette is eliminated, the ribbon cassette can be attached / detached only by opening the lid provided on the housing, which has the effect of greatly improving the operability.

[Brief description of drawings]

FIG. 1 is a perspective view of a printer using an embodiment of the present invention.

2A and 2B show a ribbon cassette of the present embodiment, FIG. 2A is a plan view, and FIG. 2B is a sectional view taken along line XX in FIG.

3 is a vertical cross-sectional view seen from the right side of FIG.

FIG. 4 is a vertical sectional view showing an example of a ribbon cassette of a conventional printer.

[Explanation of symbols]

 1, 2 paper 6 platen 7 printer front part 8 paper inlet 9,13 paper guide 10,10a ribbon cassette 11,14 rib 12 printhead 15 paper discharge port 16 cover 17 case 24 lid

Claims (3)

[Claims] 1. A ribbon cassette of a front operation type printer, which is disposed between a sheet suction side guide and a sheet discharge side guide of a printer body and guides a sheet to be sucked against the sheet suction side guide. A ribbon cassette body, comprising: a ribbon cassette body integrally formed with a first rib and a second rib that guides the sheet discharged to face the sheet discharge side guide. 2. The ribbon cassette for a printer according to claim 1, wherein the first and second ribs are formed in a comb tooth shape from the ribbon cassette body. 3. The ribbon cassette body is removable from the printer body.
Or the ribbon cassette of the printer according to 2.