Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1997-12-01
2000-03-21
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430110, 430 97, G03G 9113
Patent
active
060401028
ABSTRACT:
An electrostatic latent image developer including a toner, which is formed from an outer additive and non-magnetic resin particles containing a binder resin and a coloring agent, and a carrier, in which a resin coating layer in which electroconductive fine powder is dispersed in a matrix resin is formed on a core, wherein a volume specific resistivity of said carrier is greater than or equal to 10.sup.9 .OMEGA..multidot.cm at an electric field strength of 3000 V/cm and is less than or equal to 10.sup.13 .OMEGA..multidot.cm at an electric field strength of 10000 V/cm, said outer additive contains titanium oxide whose volume specific resistivity of a compression-molded molded product is greater than or equal to 10.sup.6 .OMEGA..multidot.cm at an electric field strength of 3000 V/cm and is less than or equal to 10.sup.10 .OMEGA..multidot.cm at an electric field strength of 10000 V/cm, and a volume specific resistivity of said electrostatic latent image developer when a toner concentration is greater than or equal to 2% is greater than or equal to 10.sup.11 .OMEGA..multidot.cm at an electric field strength of 3000 V/cm.
Further, the present invention provides an image forming method including steps of forming a latent image on a latent image holding member, and developing the latent image by using said electrostatic latent image developer.
REFERENCES:
patent: 5372905 (1994-12-01), Deusser et al.
patent: 5429902 (1995-07-01), Saito et al.
patent: 5604071 (1997-02-01), Okado et al.
patent: 5670289 (1997-09-01), Hanzlik et al.
Ishida Haruhide
Mizutani Noriyuki
Oya Yasuhiro
Takagi Shinpei
Takahashi Sakon
Fuji 'Xerox Co., Ltd.
Rodee Christopher D.
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