JPS5892586A - Printer ribbon switching mechanism - Google Patents

Abstract

PURPOSE:To obtain the titled mechanism, wherein color switching of multicolor ink ribbon is performed in synchronization with a detecting means which selects and detects one color of the multicolor ink ribbon, while the amount of displacement of an ink ribbon cassette can be made large, and life of the ribbon can be elongated. CONSTITUTION:When a cam 5 is rotated by the rotation of a motor 1, levers 7 on the sides of frames 16 and 17 are moved, and a sliding shaft 10 is slidden. The ribbon cassette 12 which is attached to the sliding shaft 10 is also moed up and down. When the lever 7 is lowered to the lower dead point, an optical reset detector 13 is turned ON so as to obtain a standby state. A detecting plate has four contact parts 31-34. When two detecting brushes 19 are contacted with the contact parts, a motor stopping signal is inputted, and the position of the ribbon is determined.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detection means for selectively detecting the color of an ink ribbon cassette containing multicolor ink ribbons, and an apparatus for selectively sliding and switching colors using a set detection means. It comes out.

Recently, color printing using multicolor ink ribbon is 5111
is being carried out. ' An example of this is the multicolor ink ribbon shown in Figure 1.
The colors of colors a, b, a, and +l are arranged horizontally and shifted horizontally by 2p. As a method, use the ink ribbon as shown in Figure 2.
As shown in Figure 1514, the fulcrum 247 is used as the fulcrum point 247 to print with the ribbon frame 2stl fingers above and below, so there is plenty of room for printing, but with the conventional glue line, one color glue line is narrow. Therefore, the lifespan of the ribbon is short, and the amount of swiss strokes is large (
There are very few drawbacks that can't be done with the ink ribbon cassette. It had the following drawbacks.

The purpose of the present invention is to simplify the ribbon changer 11, reduce the ribbon length to 1 inch, increase the ribbon lifespan, and eliminate the ribbon MAh.

The present invention will be explained based on the drawings. In the fifth position, the motor 1 is rotated, causing the Urazaku 2 to rotate once, and since the degenerated gravity 2 and the gear 5 are integrated, the gear 3 is rotated. frame 1
In 6141, the cam 5, teeth 4, and detection &11 are integrally fixed to @6. Also, the cam 5 is fixed to 114 in the frame 17@. When the force A5 or [g1 is turned, -6 is also rotated, and the lever 7 of the frame 16.17#IIA changes, and since the lever 7 and the slide @10 are fixed with the guide screw 21, when the lever 7 falls, the slide @ 1o or slide.

A ribbon cassette is attached to the slide shaft, so when the slide shaft slides, the same goes for frame 14.17-!
: It moves up and down in parallel in order to slide. At this time, when the lever 7 falls to the bottom dead center, the reset detection 61 of the optical controller is set to S'tOM, and the standby state is set.

Figure 7 shows the detection plate (11 in Figure 5).
1. s z , s s , s 4-A contact m
When the detection book (19 in Figure 5) reaches the 2nd rate point, a signal is sent to stop motor 1, and the ribbon position is in front of the machine. .55.
54 and color detection [and return from 34 to the waiting position of 51.

118tIA is a multicolor ink ribbon color a, b.

0.4 color ink ribbons are stored in the back of the ink ribbon cassette.0 Figure 7 al.
The detection point positions and ribbon colors are scattered at intervals such as 0 or less S2 and t+, 35 and o, J&4 and 1, which correspond to the contact point S1 of 1 and the multicolor ink ribbons a and m in Fig. 8. ing.

The ink ribbon cassette configured as described above is rotated by the motor 1, and the cam 5 is inserted through the teeth 2.5 and 4.
By rotating the cam, the cam moves l! from position 1 from a to b in Fig. 8 using the fulcrum @9 of the lever 7 as the fulcrum. J-turn. When the lever 7 moves at a constant position 1, the lever 711 - the stationary slide @ screwed to the slide shaft 10 with the guide screw 21 valves the slide guide and moves the ink ribbon cassette 12. The ink ribbon stored in the ink ribbon cassette is also changed into the same ink ribbon, so it becomes the ink ribbon of the color b in Figure 8.The print head 14 uses the ink ribbon t to select the repeating color from 0 to F to be printed. Then, when printing returns to the color λraa at the color d in Figure 8,
V bar 7ρ set detection bar 15τOM to pick up L
9 The waiting position is set and the W foot ribbon is placed at position a in Figure 8! If you set iC by 1ν, you can print in the same color every time.

In this way, the amount of displacement of the ink ribbon cassette is large (and nl
You can also extend the ribbon life, 1! Mechanism 41 with no cracks! In this example, we have explained the truth of the mechanical viewpoint method using a detection pusher as the detection flat membrane, but other detection methods such as optical methods can also be used. It's not about adding t.

[Brief explanation of drawings]

#! Figure 1 shows the results of conventional multicolor ink ribbons a and b. A, 6, and 4 colors are arranged horizontally.0 Zll11 is a conventional multicolor ink ribbon.The ribbon width is 1 inch, and 5 colors, a, b, and 6, are arranged horizontally. G I11b Sonoka Kenmai O Ribbon switching mechanism, 24 is the fulcrum shaft, 25 is the ribbon 7 frame, 2 is the ink ribbon cassette, 27 is. Print head, 28, ribbon salt t, 2? is the original of the ink ribbon cassette.
．． 1 motor, 2, 5.4 both cars, 5 cam, 6 shaft,
7 is a lever, 8 is a leno (-bin, 9 is a fulcrum shaft, IQ is a slide shaft, 11 is a detection plate, 12 is an ink ribbon cassette, 13rL reset familiarization finger, 14 is a print head, 15 is a 7 Latin, 16.17μ Frame, 18 is a slide guide, 19 is a detection brush, 20 is a brush part, 21t guide screw, 22 is a ribbon guide, 2!htfX, multicolor ink ribbon. Frame 16-ηjima et al. 7 Frame 17 [den 4 Isoko in 4) 4
) Oi@7 figure is spouting mold,! Squirrel 51, 52. ms, 5
4 is the acid point part. FIG. 8 shows a multicolor ink ribbon in which each color is arranged in 9"pb*Ca". Dekajin Shinshu Hokuki Co., Ltd.

Claims (1)

[Claims] Multi-color ink ribbon A busy printer is equipped with an ink ribbon cassette that stores the multi-color ink ribbon, a print head that selects one color of the multi-color ink ribbon and prints on recording paper, and the ink ribbon cassette kA. a multicolor ink ribbon changing means that selectively slides and performs one color change; a detection means that selects and detects one color of the multicolor ink ribbon; The ink ribbon of a specific color is placed opposite the print head, and the ink ribbon is reset during detection.
1. A ribbon switching mechanism of a printer that performs color switching of the multicolor ink ribbon in synchronization with the detection means.