Toner for electrostatic latent image development and method of magnetic monocomponent development
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United States of America Patent
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May 5, 2009
Grant Date -
Sep 4, 2008
app pub date -
Feb 25, 2005
filing date -
Feb 27, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a toner for electrostatic latent image development and a method of magnetic monocomponent development using the toner which can prevent the toner adhesion to a photoconductor for a long time period and can obtain an image having high quality by maintaining functions of the toner for a long time period or by favorably adjusting the conveying property of the toner on a developing sleeve. In a toner for electrostatic latent image development which contains toner particles and inorganic particles and a method of development using the toner, the toner particles exhibit a shape factor SF-1 which satisfies the relationship 115≦SF-1≦150 and a shape factor SF-2 which satisfies the relationship 115≦SF-2≦145 and, at the same time, a quantity of inorganic particles which are in a floating state is set to a value which falls within a range from 10 weight % to 25 weight % with respect to the total quantity of the inorganic particles.
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