JPS59103761A - inkjet printer device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] la) Technical Field of the Invention The present invention relates to an inkjet printer AM, which is based on a durable structure similar to bamboo and has a high level of precision and reliability, instead of a multi-type head. The present invention relates to an inkjet printer device that performs color printing.

(bl Prior Art and Problems) A typical inkjet printer device, for example, as shown in FIG.
The a4 is sent by rotating it. career 5
is moved along the platen 1 in the direction of arrow A (sub-scanning) by rotation of the feed screw 6, and the carrier 5 has two doors mounted on the nozzle. Note that 8 indicates an ink supply pipe.

Here, in the case of a conventional color printer, one head 71
It is equipped with four nozzle modules 73 to 7d, each with Yel low hook and MagtAnta (pink).
, Cyan (sky blue), and Black. This is because the nozzle modules 7a to 7d are selectively driven in synchronization with the movement of the carrier 5, and as shown in FIG. 2, seven color variations are created by combining four color inks on the paper 4. Therefore, it is mechanically very difficult to make adjustments for color matching of each color, and the cost of the device is also high.

Therefore, in many cases, as shown in FIG. 3, one head module 9 includes Yet lQw, Magenta,
Cyan+Black nozzles 11 are stacked vertically (Y
Row 9M row.

1", column B) is printed by the multi-head 9. Note that 10 is a piezoelectric element that generates pressure in the pressure chamber.

However, in this method, the nozzle 11 unique to inkjet
Purging (flowing ink from the nozzle 11) is performed to prevent clogging of the nozzle 11.
Because they are arranged closely on the top, bottom, left and right, there is a risk that colors will easily mix. Furthermore, as the nozzles 11 become more integrated, the shape of the ink flow path (conducting path 12, pressure chamber 13) differs from one nozzle to another, as shown in FIG. In contrast, the size difference of the common particleization conditions becomes smaller. Further, since the structure is complicated, there are problems such as difficulty in manufacturing. Note that 14 indicates a common ink chamber.

tel Purpose of the Invention The purpose of the present invention is to provide high-density printing and horizontal printing with a simple nozzle arrangement by diagonally arranging nozzle heads consisting of nozzles, pressure chambers, and ink supply channels that have the same or very similar shapes. A color inkjet printer device that is easy to manufacture because it is difficult to mix colors due to the nozzle arrangement, and because the flow path shape is the same, it has flexibility in design (flexibility in atomization conditions → expansion of margins). Our goal is to provide the following.

According to the present invention, the structure and object of the invention is to provide an inkjet printer device that performs recording on a recording medium by ejecting ink droplets from the tips of nozzles by driving a piezoelectric element. M
8.Characteristics: A book is one set, and M sets are arranged corresponding to different colors, and the nozzles are arranged at an angle αo == 5 in-1 (P) with respect to the scanning direction so that the dot pitch is equal to the interval d. This is achieved by providing an inkjet printer device that does the following:

(el　Embodiments of the invention Hereinafter, embodiments of the invention will be described in detail with reference to the drawings.

The fifth factor is the inkjet printer device of the present invention.

FIG. 2 is a perspective view showing an example of a nozzle-to-to portion.

In the figure, there are N flow paths (conducting path 16, piezoelectric chamber 17, common ink chamber 18) having the same or similar shape on one substrate 15, 16 in the figure, and M ink colors in the figure. Y, M, , C, H divided into groups according to 4 ink colors
The nozzle head section 19 is constructed by using the same ink color for the nozzles 11' and arranging N flow channels at the same interval P.

As mentioned above, the N flow channels are all made in the same shape or have an approximate shape, and the flow channels are not different for each nozzle 11' as in the conventional case, so the particle formation conditions for each nozzle 11' are will be the same. Furthermore, since the flow passages of the same shape are formed on one substrate 15, the structure of the nozzle head section 19 is simplified and it is easy to manufacture.

Further, the invention is to tilt the nozzle head portion 19 by α0 with respect to the sub-erosion direction (movement direction of the carrier 5) as shown in FIG. scan. This enables high-density printing, and even if you perform a purge to prevent nozzle clogging, which is unique to inkjet printers, there is no other nozzle directly below the nozzle, so the colors of the ink will be mixed. There is no danger.

Furthermore, when printing is performed using this method, the order in which the inks overlap is always the same, and the color tone is stable, which is an advantage.

G) Effects of the Invention As explained in detail above, in the inkjet printer device of the present invention, the nozzle head portion consisting of nozzles, pressure chambers, and ink supply channels having the exact same shape or a very similar shape is arranged diagonally. Therefore, high-density printing is possible by scanning with a simple nozzle arrangement without having to integrate nozzles as in the past, and since the nozzles are arranged diagonally and not in a vertical arrangement as in the past, it is difficult to mix colors. In addition, since the flow path shape is the same and does not differ from one nozzle to another like in the past, the nozzle particleization conditions are the same, allowing for flexibility in design (
It has the advantage of flexibility in granulation conditions (→expansion of margins) and ease of rough production.

[Brief explanation of drawings]

Fig. 1 is a perspective view for explaining a conventional inkjet printer device, Fig. 2 is a first plan view for explaining color printing, Fig. 38 is a diagram of a conventional nozzle head, and Fig. 3 is an illustration of the remaining parts. 1 is a perspective view, FIG. 4 is a sectional view, FIG. 5 is a perspective view showing one example of the nozzle head portion of the present invention, and FIG. 6 is a plan view illustrating how to use the nozzle head of the present invention. In the figure, 3 is a motor, 4 is paper, 15 is a board, 16
17 is a pressure chamber, 18 is a common ink chamber, and 19 is a nozzle head section. 1st Flash 2nd Figure

Claims (1)

[Claims] (1) In an inkjet printer device that records on an E recording medium by ejecting ink droplets from the tips of nozzles by driving a piezoelectric element, the nozzles are spaced at intervals of N
The nozzles fM are arranged in a single set, and the dots are arranged in correspondence with different colors, and the pitch of the dots with the nozzles is set at an interval d at α'=8 inches in the scanning direction.
(') An inkjet plink device whose characteristic is that it is tilted and tilted.