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<article article-type="research-article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="aggregator">72010410</journal-id>
      <journal-title>NIP &amp; Digital Fabrication Conference</journal-title>
      <abbrev-journal-title>nip digi fabric conf</abbrev-journal-title>
      <issn pub-type="ppub">2169-4451</issn><issn pub-type="epub"/>
      <publisher>
        <publisher-name>Society of Imaging Science and Technology</publisher-name>
        <publisher-loc>7003 Kilworth Lane, Springfield, VA 22151, USA</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta><article-id pub-id-type="doi">10.2352/ISSN.2169-4451.1999.15.1.art00056_1</article-id>
      <article-id pub-id-type="sici">2169-4451(19990101)1999:1L.217;1-</article-id>
      <article-id pub-id-type="publisher-id">nip_v1999n1/splitsection56.xml</article-id>
      <article-id pub-id-type="other">/ist/nipdf/1999/00001999/00000001/art00056</article-id>
      <article-categories>
        <subj-group>
          <subject>Articles</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>A Non-Contact High-Speed Inspection System for Ink Jet Print Head Nozzles</article-title>
      </title-group>
      <contrib-group>
        <contrib>
          <name>
            <surname>Kipman</surname>
            <given-names>Yair</given-names>
          </name>
        </contrib>
      </contrib-group>
      <pub-date>
        <day>01</day>
        <month>01</month>
        <year>1999</year>
      </pub-date>
      <volume>1999</volume>
      <issue>1</issue>
      <fpage>217</fpage>
      <lpage>219</lpage>
      <permissions>
        <copyright-year>1999</copyright-year>
      </permissions>
      <abstract>
        <p>Ink jet nozzle plate production includes inspection of each nozzle for morphological defects such as nicks, cuts, or blockages. Defective nozzles will result in compromised print quality. Once nozzle plates are integrated into the print head assembly, print testing can be used to verify
 head performance. However, inspection of the nozzles themselves earlier in the production process will decrease the number of print head failures. 100% inspection of nozzle plates is time consuming and it requires specialized inspection equipment and processes, but is the only guarantee of
 part quality.Inspection of ink jet print head nozzles requires high-speed, automated processes to support production volumes. Challenges such as illumination, depth of focus, part orientation, and image capture speed have resulted in falsely inflated part rejection rates when traditional
 inspection systems are used. To minimize false rejection rates and to minimize the amount of operator intervention required for manual inspection, a more robust inspection system is needed.This paper will present a novel inspection approach using existing image analysis technology for
 quantifying nozzle morphology integrated with sophisticated multi-axis motion control, automatic positioning adjustment, and a line scan camera for acquisition of single, non-stitched images.</p>
      </abstract>
    </article-meta>
  </front>
</article>
