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Automatic Troubleshooting of Print Quality Defects in Inkjet Printers

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When Print Quality is not reaching expected levels, current troubleshooting processes proposed to users follow two approaches. Either display a static list of recovery actions depending on the PQ problem (Line Quality, Banding, etc.) or request user to launch a diagnostic print, analyze it and then determine the corrective action which is required. In both cases, some user expertise is required.

This paper describes a new concept being implemented in the Large Forma Photo Printer HP Designjet Z6200 to automatically determine the status of a printing system in those areas affecting Print Quality and to actively propose to user a customized list of recommended actions to recover it.

By analyzing the results of calibrations and internal checks (such as Printhead Alignment, Nozzle health detection, Color Calibration and Media Advance data) printer build in algorithm identifies most probable cause of the problem and displays a precise list of corrective actions based on it.

The list of recovery actions is automatically displayed, so no need for interpretations/analysis by users. Actions are proposed in the optimal order. This is a dynamic list, so it's being updated every time an internal calibration or check is being performed.

As a result, even for the non expert users, recovery actions success is highly improved. In case a service call is required, process allows to remotely diagnose printing system status increasing on-site repair success rate.
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Document Type: Research Article

Publication date: 2011-01-01

More about this publication?
  • 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.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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