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Laser Spot Size Measurements and Resulting Developed Toner Features

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Laser spot size is critical to developed dot resolution in electrophotographic printing. Spot size measurements are correlated with actual discharged areas on a photoconductor surface as measured by developed toner image size. The resulting developed dot is then used to determine the optimum parameter for converting energy intensity measurements to actual developed toner features. Due to the effects of fringe fields on the discharged photoconductor surface, holes imaged into developed areas have different laser energy to developed area conversion rates than do dots in non-discharged areas, with holes requiring a larger unexposed area to reproduce the desired features. The 50% peak intensity metric was found to be superior to the 13.5% peak intensity metric.

Document Type: Research Article

Publication date: January 1, 2012

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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