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Volume: 27 | Article ID: art00095_2
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Calibration Technique for Accurate Diode to Diode Spacing Measurements
Jon B. Whitney
S. Tyler Pepper
  DOI :  10.2352/ISSN.2169-4451.2011.27.1.art00095_2  Published Online :  January 2011
Abstract

Diode to diode spacing is critical for high resolution print quality in electrophotographic printing. Small errors in spacing, smaller than the accuracy of current measurement equipment, can create beats in halftone screens leading to pronounced banding defects. High accuracy measurement techniques using mathematical analysis of lower resolution data have been reported. These techniques are contingent on accurate calibration of spatial quantum efficiency of measurement cameras which in turn depend on light/bright field irradiance calibration. An inexpensive but uniform light source design and the resulting data for light field calibration are described. Dark field calibration is also discussed, but has a smaller impact on the diode to diode spacing measurement.

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.2169-4451.2011.27.1.art00095_2
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  Cite this article 

Jon B. Whitney, S. Tyler Pepper, "Calibration Technique for Accurate Diode to Diode Spacing Measurements"  in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP27),  2011,  pp 780 - 783,  https://doi.org/10.2352/ISSN.2169-4451.2011.27.1.art00095_2

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Copyright © Society for Imaging Science and Technology 2011
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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(20110101)2011:2L.780;1-
nip_v2011n2/splitsection95.xml
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Articles
Calibration Technique for Accurate Diode to Diode Spacing Measurements
WhitneyJon B.
PepperS. Tyler
01012011
2011
2
780
783
2011
Diode to diode spacing is critical for high resolution print quality in electrophotographic printing. Small errors in spacing, smaller than the accuracy of current measurement equipment, can create beats in halftone screens leading to pronounced banding defects. High accuracy measurement techniques using mathematical analysis of lower resolution data have been reported. These techniques are contingent on accurate calibration of spatial quantum efficiency of measurement cameras which in turn depend on light/bright field irradiance calibration. An inexpensive but uniform light source design and the resulting data for light field calibration are described. Dark field calibration is also discussed, but has a smaller impact on the diode to diode spacing measurement.