Electric Conductive Pattern Element Fabricated Using Commercial Inkjet Printer for Paper-Based Analytical Devices

Nowadays, flexible electronic is an important technology to produce flexible electronic devices due to it offers the attractive features such as possibility of product types and designs, with reducing size and weight, and low cost. Poly (3,4-ethelenedioxythiophene):poly (stylenesulfonate) (PEDOT:PSS) is a conductive polymer which possess high conductivity, high electrochemical, and low redox potential. PEDOT:PSS and PEDOT:PSS/Graphene (GP)/Dimethyl sulfoxide (DMSO) conductive ink ware deposited on Polyethylene terephthalate (PET) flexible substrate using desktop inkjet printer. Conductivity and thickness of conductive pattern at 1, 3, 5, 10, 20 layers were investigated in this study. It is observed that sheet resistivity of the conductive pattern is influenced by number of printed layers. Addition of GP at 20 layers of PEDOT:PSS/GP/DMSO conductive pattern exhibits the lowest sheet resistivity at 44 ohm/󠇯󠇯sq compared to PEDOT:PSS conductive pattern of 1.81×104 ohm/󠇯󠇯sq.

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Developing an Inkjet Printer I: RGB Image to CMY Ink Amounts - Image Processing and Color Management

Electronic Imaging ◽

10.2352/issn.2470-1173.2020.15.color-282 ◽

2020 ◽

Vol 2020 (15) ◽

pp. 350-1-350-10

Author(s):

Yin Wang ◽

Baekdu Choi ◽

Davi He ◽

Zillion Lin ◽

George Chiu ◽

...

Keyword(s):

Image Processing ◽

Low Cost ◽

Experimental Results ◽

Color Management ◽

Finger Nail ◽

Inkjet Printer ◽

Rgb Image ◽

Novel Algorithm

In this paper, we will introduce a novel low-cost, small size, portable nail printer. The usage of this system is to print any desired pattern on a finger nail in just a few minutes. The detailed pre-processing procedures will be described in this paper. These include image processing to find the correct printing zone, and color management to match the patterns’ color. In each phase, a novel algorithm will be introduced to refine the result. The paper will state the mathematical principles behind each phase, and show the experimental results, which illustrate the algorithms’ capabilities to handle the task.

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Developing an inkjet printer IV: printer mechanism control for best print quality

Electronic Imaging ◽

10.2352/issn.2470-1173.2020.15.color-279 ◽

2020 ◽

Vol 2020 (15) ◽

pp. 349-1-349-9

Author(s):

Daulet Kenzhebalin ◽

Baekdu Choi ◽

Sige Hu ◽

Yin Wang ◽

Davi He ◽

...

Keyword(s):

Motor Control ◽

Constant Velocity ◽

Control Problems ◽

Print Quality ◽

Control Parameters ◽

Test Page ◽

Mechanism Control ◽

Testing Accuracy ◽

Inkjet Printer

Inkjet printer motor control consists of moving the printhead in the scan direction and in the process direction. Both movements have different objectives. Scan direction movement needs to have constant velocity and process direction movement needs to have accurate movement. In this paper, we discuss a method for controlling the velocity of the printhead and how to tune the motor control parameters. We also design six test pages for testing accuracy of the printhead movement and cartridge properties. For each test page, we discuss expected prints, common printer control problems that could alter the print quality, and how to identify them.

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