Ozone generation in corona discharge at pin electrode of electrophotographic charger

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    The generation of ozone in a stable regime of DC corona discharge at a pin electrode is modeled to provide data that can be utilized for the evaluation of charging and transferring devices of electrophotography with respect to reducing the ozone emission. The results of a theoretical investigation show the following: (1) The ozone generation rates at a 5 liter/min air flow rate for a 50 μm radius pin electrode are 0.085 ppm/μA and 0.010 ppm/μA for negative and positive charging corona, respectively. (2) The ozone generation rate increases with respect to the increase of the pin radius and can be assumed to be linear under normal operation conditions. (3) For positive charging corona, ozone is generated mainly at the surface of the pin electrode, whereas the ozone formation is displaced with a maximum generation rate located at 0.1 to approximately 0.3 mm from the electrode for negative charging corona. (4) The ozone generation rate for the saw-toothed electrodes is about one-third that of a typical biased charging roller and only 1/140 to that of a corotron.

    Original languageEnglish
    Pages (from-to)452-456
    Number of pages5
    JournalJournal of Imaging Science and Technology
    Volume44
    Issue number5
    Publication statusPublished - 2000 Sep

    Fingerprint

    electric corona
    Ozone
    ozone
    charging
    Electrodes
    electrodes
    coronas
    radii
    rollers
    air flow
    flow velocity
    direct current
    Flow rate
    evaluation
    Air

    ASJC Scopus subject areas

    • Computer Vision and Pattern Recognition
    • Electronic, Optical and Magnetic Materials

    Cite this

    Ozone generation in corona discharge at pin electrode of electrophotographic charger. / Kawamoto, Hiroyuki.

    In: Journal of Imaging Science and Technology, Vol. 44, No. 5, 09.2000, p. 452-456.

    Research output: Contribution to journalArticle

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    abstract = "The generation of ozone in a stable regime of DC corona discharge at a pin electrode is modeled to provide data that can be utilized for the evaluation of charging and transferring devices of electrophotography with respect to reducing the ozone emission. The results of a theoretical investigation show the following: (1) The ozone generation rates at a 5 liter/min air flow rate for a 50 μm radius pin electrode are 0.085 ppm/μA and 0.010 ppm/μA for negative and positive charging corona, respectively. (2) The ozone generation rate increases with respect to the increase of the pin radius and can be assumed to be linear under normal operation conditions. (3) For positive charging corona, ozone is generated mainly at the surface of the pin electrode, whereas the ozone formation is displaced with a maximum generation rate located at 0.1 to approximately 0.3 mm from the electrode for negative charging corona. (4) The ozone generation rate for the saw-toothed electrodes is about one-third that of a typical biased charging roller and only 1/140 to that of a corotron.",
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    AB - The generation of ozone in a stable regime of DC corona discharge at a pin electrode is modeled to provide data that can be utilized for the evaluation of charging and transferring devices of electrophotography with respect to reducing the ozone emission. The results of a theoretical investigation show the following: (1) The ozone generation rates at a 5 liter/min air flow rate for a 50 μm radius pin electrode are 0.085 ppm/μA and 0.010 ppm/μA for negative and positive charging corona, respectively. (2) The ozone generation rate increases with respect to the increase of the pin radius and can be assumed to be linear under normal operation conditions. (3) For positive charging corona, ozone is generated mainly at the surface of the pin electrode, whereas the ozone formation is displaced with a maximum generation rate located at 0.1 to approximately 0.3 mm from the electrode for negative charging corona. (4) The ozone generation rate for the saw-toothed electrodes is about one-third that of a typical biased charging roller and only 1/140 to that of a corotron.

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