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Printing device, printing method

A technology of printing device and printing method, which is applied in the directions of printing and inking devices, and can solve the problems of printing quality reduction and the like

Active Publication Date: 2020-07-14
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the conventional printing device has the problem that the printing quality deteriorates over time

Method used

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  • Printing device, printing method
  • Printing device, printing method
  • Printing device, printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0049] Outline configuration of printing device

[0050] figure 1 It is a schematic diagram showing a schematic overall configuration of the printing apparatus according to the first embodiment. First, refer to figure 1 , the schematic configuration of the printing apparatus 100 according to this embodiment will be described. In addition, in this embodiment, the inkjet type printing apparatus 100 which performs printing on the recording medium 95 by forming an image etc. on the recording medium 95 is taken as an example and demonstrated.

[0051] Such as figure 1 As shown, the printing device 100 includes: a medium conveying unit 20 , a medium adhering unit 60 , a printing unit 40 , a drying unit 27 , a cleaning unit 50 , and the like. Furthermore, it has the control part 1 which controls each said part. Each part of the printing device 100 is attached to the frame part 90 .

[0052] The medium conveyance part 20 conveys the recording medium 95 in a conveyance direction ...

Embodiment approach 2

[0142] Figure 13 It is a figure explaining the ink dot formed in the initial state in the printing apparatus concerning Embodiment 2. Figure 14 It is a diagram illustrating ink dots formed when landing deviation occurs over time. Figure 15 It is a flowchart explaining the printing method. Figure 16 It is a figure explaining the ink dot formed on the recording medium. In addition, the same reference numerals are assigned to the same components as those in Embodiment 1, and overlapping descriptions are omitted. In addition, the printing apparatus 200 of the present embodiment includes the image processing device 110 for changing the transport value of the recording medium 95 according to the cumulative ejection count of the liquid droplets (see Figure 4 ).

[0143] Before describing the printing method of the present embodiment, temporal changes of the printing apparatus will be described. In addition, in Figure 13 , Figure 14 and Figure 16 Here, for simplicity o...

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PUM

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Abstract

The present invention provides a printing device and a printing method that suppress reduction of print quality with time. The printing device 100 includes a medium transport unit 20 that transports a recording medium 95, a nozzle 46 that has a nozzle row 45 along the transport direction, a nozzle unit 46 that makes nozzles arranged in a staggered mannerthe along the transport direction, a nozzle moving section (41) for moving the nozzle unit (42), and an image processing device (110) for performing image processing on generated data. The nozzle (46) includes physical overlapped nozzles in which positions of the nozzles 73 are repeated. An image processing apparatus (110) changes the number of theoretical overlapped nozzles that overlap each other's nozzles (73) in the image processing according to the number of cumulative injection of the droplets.

Description

technical field [0001] The invention relates to a printing device and a printing method. Background technique [0002] Conventionally, an inkjet type printing device has been used, in which a head having a plurality of nozzle rows is reciprocated in the main scanning direction, and is directed toward a recording medium such as cotton, silk, woolen fabric, chemical fiber, blended fabric, etc. The head ejects a liquid such as ink in the form of droplets to print an image or the like on a recording medium. In such a printing device, a technique for suppressing the generation of streaks due to ink density in the moving direction of the head has been proposed (for example, refer to Patent Document 1). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2010-194737 [0006] However, in an inkjet printing device, the droplet ejection speed decreases due to the cumulative ejection times of the droplets changing with t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/11B41J2/145
CPCB41J2/11B41J2/145B41J2202/20
Inventor 山田辉
Owner SEIKO EPSON CORP
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