Automating Jet Quality Analysis Using a Scanner-Based System
While jet quality is often assessed via visual inspection, these inspections return results that are subjective and difficult to quantify.
During the development of a wide format inkjet printer aimed at the print shop market, jet quality analysis was being analyzed by a completely visual, laborious, and timeconsuming process that resulted in failure counts and a rudimentary categorization of failure modes.
The decision to move from subjective assessment to the use of an automated alternative was motivated by a desire to track the performance of a wider variety of jet quality measures on continuous quality scales rather than with the current manual process that only yields attribute classification and pass/fail counts.
A scanner-based image quality system was identified based on proven prior experience and an open architecture that allowed for measurement method customization. The application was developed, tested, and put to use measuring not only the jet quality attributes that had been evaluated via visual assessment, but it also broadened the scope of the analytical process to include attributes and variables that were of great interest that could not be tracked using the previous process.
This paper details the use of a commercially available scanner-based image quality measurement system in the automation of jet quality analysis. Application details and the results from system verification and qualification will be presented.
Document Type: Research Article
Publication date: 2004-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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