JPH02175180A - Ink ribbon cartridge - Google Patents

Abstract

PURPOSE:To make it possible to prevent printing pins from being broken and to double the life of an in ribbon by containing two ink ribbons in the same cassette, and providing a mechanism for setting the moving directions of the two ink ribbons to be opposite to each other. CONSTITUTION:When an ink ribbon cartridge is mounted on a printer, a printer, a lower ink ribbon 3i is contained in a lower part of a cartridge casing 1. When a carrier of the printer is moved laterally, a motion is transmitted from a torque piece to a roll 4, whereby the roll 4 is rotated to feed the lower ink ribbon 3 clockwise. An upper ink ribbon 2 is contained in an upper part of the casing 1, and the motive power from the torque piece is transmitted through the roll 4 and then to a roll 5 by an ink ribbon inverting mechanism 6, whereby the roll 5 is rotated to feed the upper ink ribbon 2 counterclockwise. By this, printing pins can be prevented from being broken. With the two ink ribbons are provided, the life of ink ribbon can be doubled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ink ribbon cartridge, and particularly to an ink ribbon cartridge used by being attached to a dot impact printer.

[Conventional technology]

The ink ribbon cartridge of conventional dot impact printers only stores one ink ribbon, and this one ink ribbon is oriented in the same direction both when printing to the right and to the left of the printer. It is designed to be wound up. Therefore, during a printing operation in one direction, the direction in which the print head moves and the direction in which the ink ribbon is wound are opposite to each other.

[Problem to be solved by the invention]

As mentioned above, in conventional dot impact printers, the winding direction of the ink ribbon in the ink ribbon cartridge and the direction of movement of the print head are always opposite to each other. There is a drawback that the printing bottle may break due to excessive force, and since there is only one ink ribbon,
Another disadvantage is that the ink ribbon has a short lifespan.

An object of the present invention is to solve the above-mentioned drawbacks of the ink ribbon cartridge of the conventional dot impact printer, and to provide a dot impact printer which can prevent breakage of the printing bin and approximately double the life of the ink ribbon. Our objective is to provide ink ribbon cartridges for impact printers.

[Means to solve the problem]

The ink ribbon cartridge of the present invention accommodates two ink ribbons in the same cassette and is provided with a mechanism for moving the two ink ribbons in opposite directions.

That is, the ink ribbon cartridge of the present invention has two ink ribbons housed in a vertically stacked manner, and when installed in a dot impact printer, the two ink ribbons are rotated under the action of the torque piece. A first roll that feeds one of the ink ribbons, an ink ribbon reversal mechanism that reverses the rotational direction of the first roll, and an ink ribbon from the first roll through the ink ribbon reversal mechanism. a second roll to which power is transmitted to feed the other of the two ink ribbons, the two ink ribbons, the first and second rolls, and the ink ribbon reversing mechanism; It is equipped with a cartridge case that accommodates the.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 <a>
and (b) are a sectional view showing the internal structure below the line AA in FIG. 1 and a sectional view showing the internal structure above the line.

In FIG. 1, this ink ribbon cartridge accommodates two ink ribbons, an upper ink ribbon 2 and a lower ink ribbon 3, stacked one above the other in a cartridge case 1. When this ink ribbon cartridge is installed in a printer, the upper ink ribbon 2 always moves counterclockwise when the printer carrier moves in the lateral direction, and the lower ink ribbon 3 moves in the direction of being wound up in the cartridge case 1. The dot impact printer is equipped with an ink ribbon cartridge up/down mechanism that always moves the ink ribbon in the clockwise direction by the ink ribbon reversing mechanism 6 installed inside. The printing operation is performed by selecting either the upper ink ribbon 2 or the lower ink ribbon 3 so that the moving direction of the ink ribbon and the running direction of the ink ribbon are always the same direction.

The lower ink ribbon 3 is housed in the lower part of the cartridge case 1, as shown in FIG. The roll 4 rotates to feed the lower ink ribbon 3 clockwise. On the other hand, the upper ink ribbon 2 is housed in the upper part of the cartridge case 1, as shown in FIG. It is transmitted to the roll 5 to rotate the roll 5, and the upper ink ribbon 2 is sent counterclockwise.

〔Effect of the invention〕

As explained above, the ink ribbon cartridge of the present invention accommodates two ink ribbons whose feeding directions are opposite to each other, and performs a printing operation with the ink ribbons running in the same direction as the print head of the printer. By doing so, there is an effect that breakage of the printing pin can be prevented. Furthermore, since it has two ink ribbons, it has the advantage that the lifespan of the ink ribbon can be approximately doubled compared to conventional ink ribbon cartridges.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG.
) and (b) are cross-sectional views showing the internal structure below the line AA in FIG. 1. DESCRIPTION OF SYMBOLS 1... Cartridge case, 2... Upper ink ribbon, 3... Lower ink ribbon, 4... Roll, 5...
... Roll, 6... Ink ribbon reversal mechanism.

Claims (1)

[Claims] Two ink ribbons are housed in a vertically stacked manner, and one of the two ink ribbons is rotated by the torque piece when installed in a dot impact printer. a first roll that performs a feeding operation; an ink ribbon reversing mechanism that reverses the rotational direction of the first roll; and an ink ribbon reversing mechanism that transmits power from the first roll to the two a second roll that performs a feeding operation for the other ink ribbon of the ink ribbons, and a cartridge case that accommodates the two ink ribbons, the first and second rolls, and the ink ribbon reversing mechanism. An ink ribbon cartridge characterized by: