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Tribo-Charging Characteristics on Pulverized Toner Particles in Two-Component Developer

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Tribo-charging characteristics on toner in a two-component developer are affected by various factors such as material component, shape, and methods of tribo-charging or measuring. A negative yellow type of pulverized toner is used as a sample, and the material is based on bisphenol A and polyester resin. Tribo-charging treatment is performed by using a developed mixing shaker with arm length of 200 mm. Charge to mass ratio q/m is measured by the E-SPART method. From the experimental results, it is shown that the q/m varies unstably and fluctuates with shaking time within 5 min, but the q/m changes gradually to a constant value of −13.5 μC/g at 20 min after 4 min for the 5 wt% of toner concentration. In order to investigate the change of the q/m, the observation via SEM on toner particles after the shaking treatment is performed. The q/m dependence on toner concentration from 1 wt% to 10 wt% in the developer is also reported.

Document Type: Research Article

Publication date: January 1, 2006

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  • 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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