Analysis of Ghosting in Electrophotography
There are many sources of ghosting, including most EP printer subsystems and many of their components. Subsystems from charging, development, photoreceptor, to fusing can all produce ghosting. The ghosts can be both positive and negative (darker and lighter). Having multiple ghosting sources can make the sources of ghosting difficult to determine, pointing to the need for reliable diagnostic tools.
This paper demonstrates how a commercially-available image analysis system is used to quantify ghosting and diagnose its causes. The system utilizes test targets specifically designed to reveal ghosting problems and are optimized for automated inspection. The analysis method uses frequency domain techniques that make it possible to isolate ghosting from other print quality problems. The method can also correlate observed ghosting to the printer component or components causing it. In addition to its role in R&D, the method is suitable for production environments as a quantitative tool for setting acceptance limits and performing quality control prior to shipping the product.
Document Type: Research Article
Publication date: 2000-01-01
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.
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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