JPS6315752A - Ink cartridge mechanism for color printer - Google Patents

Abstract

PURPOSE:To prevent erroneous insertion of an ink cartridge by inserting a positioning pin into a pin hole corresponding to a position wherein it is fitted in a groove of a cartridge setting element. CONSTITUTION:An ink tank 4 fitted to an ink jet head 3 is connected to ink supply ports 9 of an ink cartridge case 8 by pipes 7. In the bottom of each small chamber of the case 8, a groove 13 for discriminating the color of ink contained in a cartridge is formed in a different position from others. Four holes provided in the base of an ink cartridge 11 correspond to the positions of the grooves of the case 8 respectively. When a positioning pin 12 is inserted into a hole position specified for each color, only a specified ink cartridge is coupled to a needle 10 of the ink supply port 9. By this construction, erroneous insertion of the cartridge of each color is prevented, and also the mixture of colors of ink can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an ink cartridge mechanism for a color inkjet printer that prevents incorrect insertion. 1. Conventional technology [Recently, with the spread of office automation, the demand for creating and printing documents in offices has increased, and printers with low noise and good print quality are required. The practical use of inkjet kanji printers and inkjet color printers is currently underway. Conventionally, this type of printer has used techniques such as photo-etching on the surface of glass tubes or plates to print the nozzles, ink pressure chambers, and ink. By bending and deforming a piezoelectric vibrator that forms the supply section and is bonded to the outer wall of the ink pressurizing chamber, the ink pressurizing chamber is pressurized and ink droplets are ejected from the nozzle tip.An example of this conventional inkjet mechanism is This is shown in the configuration diagram in Figure 2.
Ink is supplied to the head 3 from any position within the device of the inkjet head 1 installed on a carrier 5 that can scan along the platen 1 in order to print characters on the printing paper 2 wound around the platen 1. This is done by connecting an ink supply port 9 fixed to a replaceable ink cartridge 11. The connection between the cartridge 11 and the ink supply port 9 is such that the needle 10 of the ink supply port 9 is connected to the ink cartridge 1.
This is done by inserting one end of 1. [Problems to be Solved by the Invention] This conventional color inkjet printer has a cartridge with the above-mentioned structure that integrates the three color inks of yellow, magenta, and cyan, and a cartridge of different shapes filled with black ink. A cartridge that is equipped with three colors and has three colors in one unit has the disadvantage that when one color runs out, the entire car I ridge must be replaced, which is uneconomical. Furthermore, since two cartridges with partially different shapes are required, this results in an increase in cost. In addition, when using Car 1 ridges of the same shape as four-color ink cartridges, if the cartridges are inserted incorrectly, color mixing occurs, which has a major negative effect on printing and print quality. . The purpose of the present invention is to eliminate these drawbacks, and when the three colors are integrated, eliminate the uneconomical drawback of replacing the cartridge when the color runs out, and prevent incorrect insertion even if the same shape is used for each of the four colors. Ink car for color printers that can print 1~
The objective is to provide a rigid mechanism. Means for Solving Problem 1] The ink cartridge mechanism for a color printer of the present invention has a structure including a plurality of n car 1 helix mounting portions each having a vortex at a different position parallel to the cartridge insertion direction;
Each of the cartridge mounting portions has a pin hole corresponding to a position to be fitted with each vortex, and one of these pin holes
The present invention is characterized in that it includes n ink cartridges each having a positioning pin slidable in a groove inserted therein and filled with ink of a different color, thereby preventing incorrect insertion of these ink cartridges. [Examples] The present invention will be described in more detail below with reference to the drawings. FIG. 1 is a partial perspective view showing the side of an ink cartridge machine according to an embodiment of the present invention. This inkjet
~The printer uses printing paper 2 wrapped around platen 1.
”-, inkjet head 3
It is installed on the carrier 5+- so that it can be scanned along the platen 1 using the guide shaft 6 as a guide. A small ink tank 4 is attached to an inkjet head 3 fixed on this carrier 5. This ink tank 4 is connected by a pipe 7 to an ink supply port 9 fixed at an arbitrary position within the apparatus. This ink supply port 9 is attached to a part of an ink cartridge case 8 provided in a part of the device cover so that the ink cartridge can be attached and detached from the outside. The ink cartridge case 8 is divided into four chambers of the same shape, and at the bottom of each chamber there is a mechanism for identifying the color of ink contained in the cartridge at a different position.
3 is formed. On the other hand, the ink cartridge 11 has four holes in its bottom surface, each corresponding to a position in the ink cartridge case 8. Therefore, when the positioning pin 12 is inserted into the designated hole position of each color, the cartridge of that color can be inserted only into the designated compartment of the cartridge case 8. Therefore, only defined ink cartridges are coupled to the needle 10 of the ink supply port 9. [Effects of the Invention] As explained above, the present invention, with the above-described structure, reliably prevents incorrect insertion of each color cartridge when replacing or inserting a cartridge, and also prevents color mixing of ink. This has the effect of realizing a highly reliable ink supply system.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram including an ink cartridge device and a print head according to an embodiment of the present invention, and FIG. 2 is a diagram of a conventional ink cartridge 1.
~It is a configuration diagram including a printer head and a print head. 1...Platen, 2...Print paper, 3...Print head, 4...Ink tank, 5...Carrier, 6...Slide ring, 7...IIJ supply vibe, 8...Ink Car 1 ~ Lid case, 9...I>' supply port, 10
...Kushi, 11...Ink cartridge, 12...
Positioning bottle, 13. Positioning lecture.

Claims (1)

[Claims] A plurality of n cartridge mounting parts each having grooves at different positions parallel to the cartridge insertion direction, each having a pin hole corresponding to a position that fits into each groove of the cartridge mounting part, and these pin holes. A color printer comprising: n ink cartridges each having a positioning pin slidable in a groove inserted into one of the ink cartridges and filled with ink of a different color, thereby preventing incorrect insertion of the ink cartridges. Ink cartridge mechanism.