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Liquid droplet ejecting device

A droplet ejection head and droplet technology, applied in printing, printing devices, etc., can solve problems such as print quality degradation and inability to set, achieve high-efficiency workpiece processing, and reduce costs

Inactive Publication Date: 2006-05-24
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the optimum value of the dummy load is different according to the specifications of different heads, if the droplet ejection heads with different specifications are driven by using a compatible drive circuit as described above, it cannot be set for different types of heads. Determine the optimal dummy load value, which leads to the problem of degraded printing quality

Method used

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  • Liquid droplet ejecting device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 It is a block diagram showing a schematic configuration of the droplet discharge device according to Embodiment 1 of the present invention. Such asfigure 1 As shown, the droplet ejection device 1 of this embodiment has an X-axis moving table 3 and a Y-axis moving table 4 as moving mechanisms provided on a machine base 2 . A freely movable main carriage 5 is attached to the X-axis moving table 3 , and a head unit 6 is provided on the main carriage 5 . In addition, although it will be described in detail below, on the head unit 6, various types (in this embodiment, three types) of droplet ejection heads 8 (8a, 8b, 8c) with different specifications are arranged via the sub-sledge 7. ). In addition, a substrate W as a workpiece is placed on the Y-axis moving table 4 .

[0042] In addition, the droplet discharge device 1 has a functional liquid droplet supply device 9 as a functional liquid droplet supply device for supplying the functional liquid to each of the ...

Embodiment 2

[0075] Next, a liquid droplet discharge device according to Embodiment 2 of the present invention will be described. Figure 6 It is a diagram showing the circuit configuration of the head driver and the droplet discharge head provided with the droplet discharge device according to the second embodiment of the present invention. In addition, in Figure 6 in, with Figure 5 Similarly, only necessary configurations for explaining the present invention are shown in the drawings. Moreover, since the overall structure of the droplet ejection device and the structure of the droplet ejection head according to Embodiment 2 of the present invention are not the same as figure 1 and figure 2 The structures shown are the same, so descriptions thereof are omitted.

[0076] set in Figure 6 The head driver 19 in the droplet ejection device according to Embodiment 2 of the present invention shown in FIG. Figure 5 The difference of the head actuator in the droplet ejection apparatus a...

Embodiment 3

[0083] Next, a liquid droplet discharge device according to Embodiment 3 of the present invention will be described. Figure 7 It is a diagram showing a circuit configuration of a head driver and a droplet discharge head provided with a droplet discharge device according to Embodiment 3 of the present invention. In addition, in Figure 7 in, with Figure 5 and Figure 6 Likewise, only the structures necessary for explaining the present invention are shown.

[0084] In the above-mentioned Embodiment 1 and Embodiment 2, various types of droplet discharge heads 8 (8a, 8b, 8c) of different specifications are provided on the head unit 6, and dummy loads 31a to 31c are provided in the head driver 19. The dummy load connected correspondingly to the droplet discharge head to be driven is selected by the analog switches 32a to 32c, 33a to 33c or the toggle switches 40a to 40c, 41a to 41c.

[0085] In this embodiment, however, the dummy circuit and analog switches of the head driver...

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Abstract

The invention provides a liquid droplet ejection method, which sprays liquid droplets to a workpiece, including: a head unit configuration process, configuring the head unit, the head unit has a droplet ejection head and an electrical characteristic corresponding to the droplet ejection head a control device; a driving step of supplying a drive signal to the droplet ejection head by the control device included in the head unit arranged in the head unit arrangement step, so as to eject the liquid droplet.

Description

[0001] This application is a divisional application with an application number of 03156733.9, an application date of September 8, 2003, and an invention title of "droplet ejection device and method, film forming device and method, and device manufacturing method". technical field [0002] The present invention relates to a droplet ejection device and method for ejecting a functional liquid to a workpiece such as a substrate through a droplet ejection head, a film forming device and a film forming method, a device manufacturing method, and an electronic instrument. Background technique [0003] A droplet discharge device such as an inkjet printer capable of color printing is provided with a plurality of droplet discharge heads on a carriage, and inks (droplets) of various colors are introduced into each droplet discharge head. In the droplet ejection device having such a structure, each head is independently driven according to print data to control the ejection of droplets of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/015B41J2/07B41J29/38
Inventor 臼田秀范中村真一高野丰山田善昭
Owner SEIKO EPSON CORP
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