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Compact Draw-off Type Instrument for Measuring Toner Charge

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We have developed a compact draw-off type instrument for measuring toner charge. The instrument can measure the charge to mass ratio (q/m) of both two-component and one-component developers. The instrument can also measure toner charge on a photoreceptor, or on several intermediate media or even on paper. The instrument is highly maneuverable due to the small size of its nozzle unit, thereby ensuring extremely versatile measurement capability. Toner particles are directly absorbed into a Faraday cage by means of a draw-off separation method, so that the measurements are highly accurate. We have found that accurate toner charge measurements could be obtained for two-component and one-component developers by using this instrument. This instrument should be useful for the further development of electrophotographic printing systems.

Document Type: Research Article

Publication date: January 1, 2002

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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