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Volume: 20 | Article ID: art00088_1
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A Novel Method for Evaluating Ink-Jet Print Head Directionality
Meng-Ta Yang
Chih-Hsuan Chiu
Chi-Bin Lo
Chun-Jung Chen
Po-Fu Chou
Kuo-Hua Wu
  DOI :  10.2352/ISSN.2169-4451.2004.20.1.art00088_1  Published Online :  January 2004
Abstract

Directionality of droplet ejection is an important character for the ink-jet printing process in many of the industrial applications. The conventional strobe system can only be used for roughly estimating the average directionality of a group of consecutive droplets. Other apparatuses available in the market are both costly and time-consuming for multinozzle measurement. This study reveals a fast and economic method for measuring the directionality of a multi-nozzle print head based on every single droplet behavior. The apparatus includes an X-Y table for supporting the printed media, a drop on demand print head for ejecting droplets, and a set of optical system for capturing dot images of droplets on printed media. Software programming based on the statistic and optimization theory is also developed for calculating the ejection directionality in this study, which includes two kinds of measurement method. One is the deflection of droplets ejected from every single nozzle. The other is the deviation of the average droplet position from its ideal position. Consequently, this new measurement technique is a powerful tool for developing highly accuracy and quality of inkjet print head.

Journal Title : NIP & Digital Fabrication Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
Subject Areas :
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 DOI 10.2352/ISSN.2169-4451.2004.20.1.art00088_1
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Meng-Ta Yang, Chih-Hsuan Chiu, Chi-Bin Lo, Chun-Jung Chen, Po-Fu Chou, Kuo-Hua Wu, "A Novel Method for Evaluating Ink-Jet Print Head Directionality"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP20),  2004,  pp 393 - 398,  https://doi.org/10.2352/ISSN.2169-4451.2004.20.1.art00088_1

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Copyright © Society for Imaging Science and Technology 2004
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NIP & Digital Fabrication Conference
nip digi fabric conf
2169-4451
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2169-4451(20040101)2004:1L.393;1-
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Articles
A Novel Method for Evaluating Ink-Jet Print Head Directionality
YangMeng-Ta
ChiuChih-Hsuan
LoChi-Bin
ChenChun-Jung
ChouPo-Fu
WuKuo-Hua
01012004
2004
1
393
398
2004
Directionality of droplet ejection is an important character for the ink-jet printing process in many of the industrial applications. The conventional strobe system can only be used for roughly estimating the average directionality of a group of consecutive droplets. Other apparatuses available in the market are both costly and time-consuming for multinozzle measurement. This study reveals a fast and economic method for measuring the directionality of a multi-nozzle print head based on every single droplet behavior. The apparatus includes an X-Y table for supporting the printed media, a drop on demand print head for ejecting droplets, and a set of optical system for capturing dot images of droplets on printed media. Software programming based on the statistic and optimization theory is also developed for calculating the ejection directionality in this study, which includes two kinds of measurement method. One is the deflection of droplets ejected from every single nozzle. The other is the deviation of the average droplet position from its ideal position. Consequently, this new measurement technique is a powerful tool for developing highly accuracy and quality of inkjet print head.