JPH04371880A - Ink ribbon cartridge - Google Patents

Abstract

PURPOSE:To provide an ink ribbon cartridge capable of certainly mounting an ink ribbon without contaminating the hand even in such a case that a printing part is oblong like a line printer and capable of miniaturizing a packing box. CONSTITUTION:Ribbon guide arms 22, 23 are attached to the upper part of a case 20 having an ink ribbon 21 received therein on both sides thereof in a freely erectable and detachable manner and the pin holes 26, 27 engaging with the positioning pins implanted in the printing part of a printer on both sides thereof are provided to the leading ends of the ribbon guide arms 22, 23 and the protruding pins 22a, 23a engaging with the notches 20a, 20b of the case 20 are provided on a base part.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of an ink ribbon cartridge particularly suitable for use in line printers as well as serial printers.

0002

2. Description of the Related Art To replace the ink ribbon of a line printer, as shown in FIG. 1, the cover 2 of the ink ribbon cassette 1 attached to the printer is opened by removing the hooks 3,
After removing the ink ribbon 4 from the ribbon guides 5, 6, and 7, take it out from the ink ribbon cassette 1, and then insert the new ink ribbon in the paper case into the ink ribbon cassette 1.
After removing the paper case, insert the ink ribbon 4 between the ribbon mask 8 and the head cover 9, and then insert the ink ribbon 4 between the ribbon mask 8 and the head cover 9, and remove the ink ribbon 4 from the reversing guide 10, ribbon guides 5, 6, 7, and rubber roll 11.
A sub-cassette system is used in which the cassette is set in the cassette. On the other hand, Figure 2 shows how to replace the ink ribbon of a serial printer.
A method of attaching and detaching the cartridge as shown in FIG. 1 is adopted, and after replacing the cartridge 12 with an old one, the ribbon guide 13 is attached to a guide holder provided in the printer.

0003

[Problems to be Solved by the Invention] To replace the ink ribbon in the conventional line printer illustrated in FIG. This has the disadvantage that the operator's hands get dirty. Furthermore, when a cartridge system similar to the serial printer shown in FIG. 2 is applied to the ink ribbon replacement of a line printer, attachment to the long insertion portion between the ribbon mask 8 and head cover 9 is likely to become uncertain. There was a drawback that the packaging box became larger. Therefore, it is an object of the present invention to provide an ink ribbon cartridge that solves these drawbacks.

0004

[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems, and the first invention is to provide positioning pins provided on both sides of the ink ribbon case at the tip thereof on both sides of the printing section of the printer. The ribbon guide arm is provided with an engaging portion that can be raised and lowered freely. Further, the second invention is such that the ribbon guide arm according to the first invention can be freely raised and lowered from the case and can be attached and detached, and the guide arm is provided with a hook part that engages with a stop part provided on the frame of the printer at the base of the guide arm. It is something that

[Function] By opening the ink ribbon guide arm, the ink ribbon can be inserted easily and reliably into the horizontally long ribbon insertion part without getting your hands dirty. Furthermore, by engaging the engaging portion provided at the tip of the ribbon guide arm with the positioning pin of the printer, the ink ribbon can be properly set in the printing section.

[0005]

Embodiment FIG. 3 shows an embodiment in which the present invention is applied to a line printer, and is a plan view of the state when the printer is stored in or taken out from a packaging box. In the figure, 20 is a case housing an ink ribbon 21, which can be raised and lowered on both sides of the upper part.
It is equipped with removable ribbon guide arms 22 and 23. The ribbon guide arms 22 and 23 have positioning pins 24 implanted at their tips on both sides of the printer printing section.
Pin holes (engaging portions) 26 and 27 are provided to engage with the printer frame 25, and protruding pins 22a and 23a are provided at the base to engage with the notches 20a and 20b of the case 20 and holders 28a and 28b provided in the printer frame 28. It is something. Next, to explain how to set it up, first, hold the case 20 and ribbon guide arms 22, 23 with both hands, and
Open the ribbon guide arms 22 and 23 as shown in FIG. Next, while inserting the ink ribbon 21 between the ribbon mask 8 and the head cover 9, the pin holes 26 and 27 of the ribbon guide arms 22 and 23 are fitted into the positioning pins 24 and 25,
Next, the ribbon guide arms 22 and 23 are removed from the case 20.
Remove the base of the holder 2, and attach the protruding pins 22a and 23a to the holder 2.
8a, 28b, in the illustrated embodiment, the case 20 is lowered downward as shown in FIG.
0 and fix it. When the setting of the case 20 is completed, the feed roll provided inside the case is connected to the drive device. FIG. 6 shows a different embodiment in which the present invention is applied to a serial printer, in which the ribbon guide arm 22'
, 23' can be freely raised and lowered on both sides of the case 20'.As for how to use it, it can be installed in the same manner as in the previous embodiment, so a description thereof will be omitted.

[0006]

According to the present invention, an ink ribbon can be reliably attached to a horizontally long printing section like a line printer, and an operator (especially a female ) can efficiently replace ribbons without getting their hands dirty, and there is no need for accessories such as gloves to prevent dirt, leading to cost reductions. Furthermore, since the ribbon guide arm is movable, there is no need for a large packaging box like the ink ribbon cartridge for a serial printer shown in FIG. 2, and the packaging box can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an ink ribbon cassette for explaining conventional ink ribbon exchange in a line printer.

FIG. 2 is a perspective view of an ink ribbon cartridge for a serial printer.

FIG. 3 is a plan view of an embodiment of the invention for a line printer;

FIG. 4 is a plan view of the embodiment of the present invention being installed in a line printer.

FIG. 5 is a plan view of the embodiment of the present invention installed in a line printer.

FIG. 6 is a top view of an embodiment of the invention for a serial printer. 1 Ink ribbon cassette 2 Cover 3 Hook 4 Ink ribbon 5, 6, 7 Ribbon guide 8 Ribbon mask 9 Head cover 10 Reversing guide 11 Rubber roll 12 Cartridge 13 Ribbon guide 20 Case 21 Ink ribbon 22, 23 Ribbon guide arm 24, 25
Positioning pins 26, 27 Pin hole 28 Printer frame 29 Pin 30 Holder 31 Hammer bank

Claims (2)

[Claims] 1. An ink ribbon characterized in that a ribbon guide arm is provided on both sides of an ink ribbon case so as to be able to rise freely, the tip of which is provided with an engaging portion that engages with a positioning pin provided on both sides of a printing section of a printer. cartridge. 2. Ribbon guide arms are provided on both sides of the ink ribbon case so as to be able to rise freely and to be attached and detached, and each ribbon guide arm has an engaging portion at its tip that engages with a positioning pin provided on both sides of the printing section of the printer. An ink ribbon cartridge characterized in that a latching part is provided at the base of the arm to engage with a latching part provided on a frame of a printer.