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Mechanistic Statistical Study of the Speed Dependence of Magnetic Background

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The mechanisms underlying the generation of magnetic background in magnetography are analyzed from the standpoint of random collisions between toner particles during development. Particles are supposed either already captive in non-image area, or still free in the developer bed. The outcome of collisions is determined by comparing the magnetostatic energy of the former type of particles, with the kinetic energy of the latter type. The critical process speed, at which background is minimum, depends on the imaging media permeability and the toner magnetic characteristics. The rate at which background decreases for sub-critical speeds is related to the particle size distribution and the number of collisions expected at each development position. Quantitative results from the model are shown to be fairly in agreement with experimental data.

Document Type: Research Article

Publication date: 1999-01-01

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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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