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Extending Toner Shape Analysis to 3D

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Toner shape has been found to influence performance characteristics such as developer flow, transfer, and cleaning. Chemically prepared toner (CPT) manufacturing methods provide control of particle shape, which allows one to optimize the toner performance. Shape analysis using automated digital imaging systems can be used both off-line and on-line to characterize toner shape. Most image analysis methods orient particles to display the two largest dimensions. By combining image analysis with other counting techniques that measure particle volume, such as the Coulter counter method, the minor axis information can be derived and the semi-minor and minor aspect ratios calculated. The inherent errors in edge detection for image analysis must be taken into account.

Document Type: Research Article

Publication date: January 1, 2007

More about this publication?
  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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