JPS5857987A - Ink ribbon - Google Patents

Abstract

PURPOSE:To extend a service life of an ink ribbon which supplies ink to a printer by inversing its top and bottom portions as well as obverse and reverse surfaces at each circulation in a cassette by forming the ink-ribbon into a ring- shape with one twisting at one place like a M obius band. CONSTITUTION:An ink ribbon 4 which is formed into an endless form with one twisting at one place is installed in a cassette 5 in such a manner that a portion where is not twisted is presented from a slit 9 and the cassette 5 is installed on a printer 1 by fitting holes 7 onto shafts 8. The ribbon is rotated in the regular direction in the cassette 5 with coating ink thereonto by a ink roller, and a printing mechanism executes printing upon hitting on a platen 3 through the ink ribbon 4 and a rolled paper 2. By every one full circulation of the ink ribbon 4 in the cassette 5, its top and bottom portions as well as obverse and reverse surfaces are inverted, consequently upper and lower portions of the ribbon 4 are alternately used widthwise for printing, thereby clearer printing is obtained and the service life of the ribbon is extended.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ink cleaner having a rounded ring shape for applying ink to printed character forming means such as a type wheel in various printing devices.

2. Description of the Related Art Conventionally, in various printing devices, it has been common practice to use a horizontal ink cartridge for printing ink in a character forming means such as a type wheel. here,
An example of a printing device using such an annular ink screen will be described below with a schematic drawing thereof.

In FIG. 1, l is a printing device and 2 is a printing device fill.
A-, which is a printed part that is inserted from the rear end and pulled out to the outside through the printed surface as shown in the figure.
Although not shown, there is a printing device such as a wire dot type that prints by colliding a wire with the gofte 73 in accordance with the 9th turn. Means are provided.

4 is a ring-shaped ink cleaner colored in an arbitrary color stored in the recan cassette 5, and by attaching the ribbon cassette device to the printing device IK, it is placed between the platen 3 and the printing means on the roll paper 2. intervene. Connect the wires of the printing means through the ink printer I74 and the roll paper 2! By colliding with Latin 3, any character can be printed. Here, the ribbon cassette 6 that houses the ink clean 4 will be explained. The ribbon cassette 5 is composed of a lower case 5a and an upper case 5b that are joined together to form a single body, as shown in the exploded perspective view of FIG.

The lower case 5& is provided with a slit 9 for allowing the ink cartridge 4 to come out to the outside, and both cases 5a, 5bK
An in-clean 4 is provided between the provided fitting holes 10a and 10b.
Two ink claws 26, which transport the ink cleaner 4 while applying ink to the ink cleaner 4, are rotatably held by being fitted into the rotary shaft hole 7 provided integrally therewith. The ink ribbon 4, in which the adhesive having such a structure forms a shape inside the hook set 5, is hung around the outer periphery of the two ink rollers 6 and is housed so as to be produced outside through the slit 9. Also, I assembled as above
The Jy hook set 5 is attached and held to the printing device 1 by aligning its rotation shaft holes 7 with the two rotating shafts 8 provided in the printing device 1 shown in FIG. It is. At this time, the rotary shaft hole 7 and the rotary shaft 8 are configured to form, for example, a knurled interlocking relationship with each other. As a result, when the rotating shaft 8 is rotated in the direction of the arrow in FIG. 1 by a driving means (not shown) in the printing ktill, the ink roller 6 is rotated, and the ink cartridges 4 are sequentially fed in the direction of the arrow. Therefore, the ink is applied by the ink cleaner 4 and the inside of the ink cassette 5 in small amounts by one or more ink cassettes 5, so that the printing device 1 can always perform clear printing, and the ink is Deterioration of the ribbon 4 itself is also prevented.

However, the above-mentioned annular ink line 74
When using , the entire width direction of the ink-clean 40 is not used when printing, but in many cases only a part of it (for example, a dot chain! (the part shown) will always be used. Therefore, when the printing means is a wire tod method, in which a thin wire is pushed onto the roll paper 2 through the ink cartridge 4, the part of the ink clean 4 that the wire comes into contact with is in contact with the front part. This has the disadvantage of causing rapid deterioration.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to make it possible to use the full range effectively without using any special equipment. The purpose of the present invention is to provide an ink cartridge whose lifespan can be extended.

Hereinafter, one of the present invention will be explained with reference to drawings showing an embodiment of the present invention.Ink I) Z74' is formed into a ring shape with one part twisted as shown in FIG. That is,
The ink ring 4' itself is a so-called "Mobius strip"
It is formed into a ring shape called . Here, such an ink cleaner 74' should be exposed with its untwisted part through the slit 9, stored in the main cassette 5, and attached to the printing device as described above. The operation when only the upper half of 4' is used for printing Kgl will be explained. In this case, the ink cartridge 4' is attached to the ink ribbon 6? It rotates (circulates) in a fixed direction within the hook set 5.

At this time, due to the nature of the ink-clean 4', the top and bottom and six layers are reversed every time the tile goes around the inner circle of the hook set. As a result, the upper and lower portions of the ink printer I74' in the width direction can be used alternately for printing.

In this case, since the front and back sides are reversed every time it goes around, both sides of the ink cleaner 4' are coated with ink P-26, and the number of times the ink is supplied is doubled compared to the conventional method. Become. In this way, the ink ribbon 4' has half the length of the conventional ink ribbon of the same length, which is equivalent to using an ink ribbon twice the length. Therefore, due to one or more effects, clearer printing is possible, and ink! J&74'
It is easy to understand that the lifespan of the battery is doubled by 4 hours.

As described above, according to the present invention, by forming a ring-shaped ink ribbon to form a so-called "Möbius strip," when a portion of the ink ribbon that is biased to one side in the width direction is used for printing. As a result, it is the same as using an ink ribbon twice as long as the ink ribbon, so the ink ribbon can be used effectively and its lifespan can be extended.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an overview of an example of a printing device using annular ink IJ/N, Fig. 2 is an exploded perspective view showing the structure of a spacing cassette, and Fig. 3 is a conventional annular ink. FIG. 2 is a perspective view showing an example of a ribbon. FIG. 4 is a perspective view showing an embodiment of the in-clean according to the present invention. Here, 1...printing device, 2...roll paper, 3...
・Graten, 4, 4'... Incre I/, 5...
Rigan cassette, 6... Ink roller. Patent applicant: Canon Co., Ltd. <r, y Figure 1 Figure 2 ba j13

Claims (1)

[Claims] An ink cleaner that serves as a reward for supplying ink to a printing device, characterized in that the ink clean is formed horizontally by twisting one part to form a Möbius strip. /.