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(11)

EP 3 479 422 A1

(12)

(43) Date of publication: 08.05.2019 Bulletin 2019/19 (21) Application number: 17737023.6 (22) Date of filing: 30.06.2017

(51) International Patent Classification (IPC):  H01L 41/09(2006.01) H01L 41/257(2013.01) B41J 2/14(2006.01) H01L 41/113(2006.01) (86) International application number: PCT/GB2017/051926 (87) International publication number: WO 2018/002648 (04.01.2018 Gazette 2018/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 30.06.2016 GB 201611430 (71) Applicant: Xaar Technology Limited Cambridge CB4 0XR (GB)

(72) Inventors: HOOK, Michael Cambridge CB4 0XR (GB) MARSON, Silvia Cambridge CB4 0XR (GB) MARDILOVICH, Peter Cambridge CB4 0XR (GB) TROLIER-MCKINSTRY, Susan Pennsylvania 16802 (US) FRAGKIADAKIS, Charalampos Cambridge CB4 0XR (GB) KO, Song-Won Cambridge CB4 0XR (GB) (74) Representative: Pitchford, James Edward et al Mathys & Squire LLP The Shard 32 London Bridge Street London SE1 9SG London SE1 9SG (GB)