Magnetic toner

Details Magnetic toner Magnetic toner

1995-04-11

1996-10-01

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430182, G03G 9083

Patent

active

055610196

ABSTRACT:
Magnetic toner used for electrophotographic development includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, and hydrophobic silica having a particular specific surface area and surface treatment, so that the magnetic toner can provide images of high quality without generating photoconductor filming. The magnetic toner is applied to the electrophotographic method including the developing step of forming electrostatic latent images on a photoconductor containing a stationary magnet, magnetically attracting the magnetic toner to the surface of the photoconductor in a toner sump, and collecting toner at a non-image section by an electrode roller; the transferring step of transferring the toner to transfer paper; the cleaning step of removing residual magnetic toner left on the photoconductor in the transferring step; and the recycling step of recycling the residual magnetic toner.

REFERENCES:
patent: 5215845 (1993-06-01), Yusa et al.
patent: 5307122 (1994-04-01), Ohno et al.
patent: 5364720 (1994-11-01), Nakazawa et al.
patent: 5364730 (1994-11-01), Kojima et al.
patent: 5370961 (1994-12-01), Zaretsky et al.

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