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JEC IEC62899-302-6 Edition1.02025-05 INTERNATIONAL STANDARD Printed electronics- Part302-6:Equipment-Inkjet-Firstdropmeasurement IEC 62899-302-6:2025-05(en) ICS 19.080; 37.100.10 ISBN 978-2-8327-0414-1 THISPUBLICATIONISCOPYRIGHTPROTECTED Copyright@2025IEC,Geneva,Switzerland by any means,electronic or mechanical, including photocopying and microfim, without permission in writing from either IEC or IEC's member National Committee in the country of the requester.If you have anyquestions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Secretariat Tel.: +41 22 919 02 11 3, rue de Varembe [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About the IEC International Standards for all electrical, electronic and related technologies. AboutIEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IECpublicationssearch- IEc Products & Services Portal-products.iec.ch webstore.iec.ch/advsearchform Discover our powerful search engine and read freely all the The advanced search enables to find IEC publications by a publications previews, graphical symbols and the glossary. variety of criteria (reference number,text, technical With a subscription you will always have access to up to date committee, ..)..It also gives information on projects, content tailored to your needs. replaced and withdrawn publications. Electropedia-www.electropedia.org IEc Just Published-webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up todate on all new IEC publications.Just Published containing more than 22 500 terminological entries in English details all newpublications released.Available online and and French, with equivalent terms in 25 additional languages. once a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Customer Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer ServiceCentre:[email protected]. Warning!Make sure that you obtained this publication from an authorized distributor. IEC62899-302-6:2025IEC2025 -2 CONTENTS FOREWORD 3 INTRODUCTION. .5 1 Scope.. 2 Normative references... 3 Terms,definitionsandabbreviatedterms. 3.1 Terms and definitions... 3.2 Abbreviatedterms... 4 Inkjet first drop measurement.. 4.1 General... 8 4.2 Process for printing-based method.. 8 4.3 Processforhighspeedcameraimaging-basedmethod .9 4.4 Processforsingleflashimagingbasedmethod. 10 5 Recordedoperatingparametersfordropspeedmeasurements 11 AnnexA(normative)Keyconsiderationsforinkjetfirstdropmeasurement ..12 A.1 Printingmeasurement.... .12 A.2 Highspeedcamerabasedmeasurement. A.2.1 General.... 15 A.2.2 Measurement steps using high speed camera. 16 A.2.3 Analysis method of acquired images. 18 A.2.4 Jetting speed measurement forfirstdropanalysis.. .20 A.3 First dropmeasurementusing imaging device(CCD camera)with flash light source, 22 Bibliography. .24 Figure A.1 - Typical first drop effect. 12 FigureA.2-Jettingspeedeffectsondropplacement .13 Figure A.3-Patterns for first drop evaluation... Figure A.4-Practical guidelines to obtain acceptable printing accuracy 15 FigureA.5-Visionmeasurementbasedonhighspeedcamera. .16 Figure A.6-Triggerbased image acquisition and jetting forfirst dropmeasurement.. Figure A.7-Non-jetting pause time effects on the first drop jetting speed Figure A.8-Sorted drop images (ink type A) .19 Figure A.9-Sorted drop images (ink type B). .19 FigureA.10-Two jetting images of a droplet, to calculate jetting speed FigureA.11-Jetting speed calculation from the droplet locations at two timings.. ..21 Figure A.12-Jetting speedbehaviour accordingto non-jetting time. .21 FigureA.13-Timi

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