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Volume: 15 | Article ID: art00057_1
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Print Quality Optimization Apparatus
  DOI :  10.2352/ISSN.2169-4451.1999.15.1.art00057_1  Published OnlineJanuary 1999
Abstract

Given the rapid evolution of printer technology and the ever-increasing demand for enhanced resolution, quantitative measurements of printer performances under different operating conditions are deemed necessary. To fulfill these requirements, two types of Print Quality Control Systems have been proposed in the past. The first one, based on high speed video and image analysis is typically used in research and development of inkjet print head. The second apparatus which also includes a lot of image processing is mainly based on the examination of printed test patterns.Each device presents drawbacks and advantages, since one focuses on the characterization of an ink drop in flight, and the other one on the interaction of ink and media. In fact, an efficient print quality tool must control the process at each step, by following the drop from the exit of the nozzle up-to drop impact on the substrates. For this purpose, we have designed and built the automated Print Quality Optimization Apparatus (PQOA).This system is designed to investigate more closely the relationships that exist between drop formation and drop impact. This is especially useful if one wants to monitor the printer as a global system (print head, ink, media).In this paper, we will first discuss the general design requirements, then all possible measurements which can be performed with the PQOA and the methodology for each of them. Finally performance results and prospects are also detailed.

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Pascal Pierron, Patrice Giraud, "Print Quality Optimization Apparatusin Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP15),  1999,  pp 220 - 223,  https://doi.org/10.2352/ISSN.2169-4451.1999.15.1.art00057_1

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