The Influence of Toner Charge on the Magnetic Chain in the Magnetic Single-Component Development System

Masao Nakano, Hiroyuki Kawamoto, Isami Itoh

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    A magnetic single-component development process in electrophotography has interesting characteristics on a magnetic and electrostatic interaction of toner particles. Magnetic force restrains toner adhesion to non-image area and this feature enhances the development. However, long chains made by magnetic interaction force between magnetic toner particles deteriorate toner-image quality on the photoreceptor. It is known from a past experimental study that the magnetic chain length is influenced not only by the magnetic field but also by the electrostatic charge of toner particles. This study confirmed it by using two-dimensional numerical analysis. Simulation of toner dynamics was carried out using the Finite Difference Method (FDM) for the electric field calculation and the Distinct Element Method (DEM) for the calculation of charged magnetic toner motion in the magnetic and electrostatic field. The following were deduced form the investigation. (1) The chain length of toner particles was shortened by the toner charge. (2) In the case that particles does not include wrong-sign toner, charge distribution does not change the chain formation but wrong-sign toner particles influence the chain length and number. (3) The magnetic chain was reconstructed under the application of AC biased potential at the development gap. (4) Toner particles with wrong-sign toner caused a defect of chain images.

    Original languageEnglish
    Title of host publicationInternational Conference on Digital Printing Technologies
    Pages74-78
    Number of pages5
    Publication statusPublished - 2003
    EventFinal Program and Proceedings of IS and T's NIP 19: International Conference on Digital Printing Technologies - New Orleans, LA
    Duration: 2003 Sep 282003 Oct 3

    Other

    OtherFinal Program and Proceedings of IS and T's NIP 19: International Conference on Digital Printing Technologies
    CityNew Orleans, LA
    Period03/9/2803/10/3

    ASJC Scopus subject areas

    • Media Technology

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