JPS61206661A - Ink jet type printer - Google Patents

Abstract

PURPOSE:To enable a positive printing to be carried out without causing a clogging by constituting the titled apparatus such that printing is carried out with the ink in each hole or recess of an ink retaining body is sprayed outside by a pressure of the air blown out from an air blow out body. CONSTITUTION:An ink retaining body 1 having many holes 2 and a film shaped form is constituted of a thin membrane sheet made of the heat resistance material. An air jet body 3 is arranged by being connected to this ink retaining body 1, and consist of an air jet nozzle 4, an air control valve 5 and an air supply opening 6. An air relief groove 4b is formed in the periphery of an air outlet 4a of said air jet nozzle 4, and it is constituted such that the air can be blown out of each air outlet 4a independently and respectively. In an aforesaid constitution, the air from the air supply opening 6 is blown out of the air jet nozzle 4 into each hole 2, and the ink 8 in each hole 2 is blown on a printing paper by this air jet and printing is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to an inkjet printer, and particularly relates to a novel improvement for ensuring reliable jetting of ink in a stable state.

b. Prior Art Conventional ink jet printers print on printing paper by installing a large number of ink jet nozzles and ejecting ink in response to predetermined signal pulses.

C1 Problems to be Solved by the Present Invention Therefore, inkjet nozzles are extremely prone to drying.
Dad, if this kind of phenomenon occurs, in order to prevent ink from popping out in that area,
White spots appeared.

In fact, various improvements have been made so far, both in terms of the elements of the engine and the shape of the nozzle, but the reality is that nothing that can provide sufficient reliability has yet been realized.

d2 Means for Solving Problems The present invention aims to provide extremely effective means for quickly eliminating the above-mentioned drawbacks, and this invention to achieve this purpose The gist of this is that an ink holder is in the form of a film having a large number of holes or recesses, an ink tank portion for supplying ink into the holes or recesses, and an ink holder that is bonded to one side of the ink holder. This jet printer prints by blowing ink inside the six holes or recesses to the outside by the pressure of air jetted from an air jet provided.

In the structure described above, when the inkjet printer according to the present invention is operated, ink is held in the six holes or recesses by passing the ink holder through the ink tank, and in this state, the ink is removed from the air jet. When air is ejected, the ink in the six holes or recesses is completely ejected toward the printed material, and the desired printing is performed.

f. Embodiments Hereinafter, preferred embodiments of the inkjet printer according to the present invention will be described in detail with reference to the drawings.

In the drawings, the reference numeral 1 indicates an ink holder having a large number of holes 2 and having a film shape. and the hole 2 has a diameter of 5
It has a shape that varies in size from 0 μm to 200 μm, and although a hole is shown in this embodiment, the same effect can be achieved even in the case of a recess.

An air ejector is disposed at the lower part of the ink holder 1 in contact with the ink holder 1, and this air ejector 3 includes an air injection nozzle 4, an air control valve 5, and an air The air injection nozzle 4 of the air injection body 3 is connected to one surface of the ink holder 1, and an air escape groove 4b is formed around the air outlet 4a. ing. That is, in the case of the configuration shown in FIG. 72, each air outlet 4
An air escape groove 4b is vertically formed between the air escape grooves 4b, and in the case of the configuration shown in FIG. 0 ff1 is configured so that excess air at the time of air injection does not interfere with adjacent air outlets 4a, and configured so that air from each air outlet 4a can be injected independently. The configuration shown in the figure shows a case where the six holes 2 of the ink holder l connected to the air injection nozzle 4 are formed continuously at one-foot intervals, but in the configuration shown in FIG. The ink holder 1 has a plurality of holes 2 formed at positions corresponding to each air injection nozzle 4 of each of the plurality of air injection bodies 3. A hole group 7 consisting of a plurality of holes 2 is arranged at regular intervals with respect to each air outlet 4a.

The configuration shown in Figure t5 and Figure Z6 is based on the air jet 3
This diagram basically shows the correspondence relationship between the holes 2 of the ink holder 1 and the air outlet 4a of the ink holder.The structure shown in FIG. This configuration is such that the body l is guided and moved by a guide hole la.

Further, the configuration shown in FIG. 16 shows a state in which the six holes 2 formed in the ink holder 1 are arranged regardless of the arrangement of the air outlets 4a.

In the above configuration, when operating the inkjet printer according to the present invention, the ink 8 is held in each hole 2 by passing the ink holder l through an ink tank (not shown). The hole 2 is maintained in a state corresponding to the air outlet 4a of the air jet 3.

In the above-mentioned state, when a control pulse controlled by a control circuit (not shown) is applied to the air control valve 5 of each air injection body 3, air from the air supply port 6 passes through the air injection nozzle 4 and the air outlet 4a. The ink 8 in each hole 2 is ejected into the six holes 2, and the ink 8 in each hole 2 is blown onto a printing paper (not shown) by this ejection of air, and printing is performed.

Since the inkjet printer with the above configuration uses an air jet to eject ink, the resolution is lower than the thermal head system that the applicant has already filed. It is most suitable for printing relatively large characters and figures over a large area on paper, etc.

g1 Effects of the invention Since the inkjet printer according to the invention has the above-described configuration and operation, it is possible to reliably print ink on printing paper without causing clogging, and in particular,
In addition to being able to change the air jet angle arbitrarily, the jetting energy is large, so large ink can be jetted, making it extremely suitable for printing large characters or figures on large printed matter. It is something.

[Brief explanation of drawings]

The drawings show an inkjet printer according to the present invention, and Fig. 71 is a configuration diagram showing the basic principle, Fig. 2 is a front view showing an air outlet, and Fig. 3 shows another embodiment of the configuration shown in Fig. 2. Figure 4 is a configuration diagram showing another embodiment of Figure 1, Figure 5 is a plan view showing the basic principle, and Figure Z6 is a front view. FIG. 6 is a plan view showing another embodiment of FIG. 5; 1 is an ink holding body, 2 is a hole or a recess, 3 is an air jet body,
4 is an air injection nozzle, 4a is an air outlet, sVi air control valve, 6ilt air supply port, 7Vi hole group, and 8 is ink. The above patent application is filed by Elm Corporation.

Claims (1)

[Claims] An ink holder in the form of a film having a large number of holes or recesses, an ink tank section for supplying ink to the holes or recesses, and an air ejector provided bonded to one surface of the ink holder. An inkjet printer, characterized in that the ink in each of the holes or recesses is blown to the outside by the pressure of the air jetted from the air jetting body to perform printing.