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Analysis of Mono-Component Toner Charging and Design of a High Durability Development Roller

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The charging mechanism of toner in the mono-component non-magnetic toner developing system was studied experimentally. A microscopic current measurement technique was used to analyze the dynamics of toner charging. A current was observed to flow through each part (i.e. the development roller, doctor blade, and supply roller) during rotation of the roller with toner attached on its surface. The current holds a strong relationship to the toner charge and supplied toner mass. Development rollers with various surface properties were prepared for this study. The currents and toner charge were measured for each roller both before and after a running test. The experimental results confirmed that the toner charge decreases during the running tests. Finally design features of a high durability development roller will be proposed.

Document Type: Research Article

Publication date: 2002-01-01

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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