Full color electrophotographic toner, full color electrophotographic developer and image forming method
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United States of America Patent
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May 7, 2002
Grant Date -
N/A
app pub date -
Nov 28, 2000
filing date -
Jan 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A full color electrophotographic toner including toner particles containing at least a binder resin, a colorant and a wax, and external additives, at least one of the external additives being rutile titanium oxide having a volume resistivity of 1.times.10.sup.14 to 1.times.10.sup.18 .OMEGA.cm, and a dispersion absolute deviation a of rutile titanium oxide being 0.17 or less, and a full color electrophotographic developer and an image forming method using the same are provided. In the full color electrophotographic toner, the full color electrophotographic developer and the image forming method of the invention, a retransfer phenomenon of the transferred toner can be prevented, a chargeability and a transferability are not problematic at all, a charging amount of the toner in long-term use can be rendered appropriate and stable, and a fluidity is also excellent.
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