Dry developer for developing electrostatic latent images contain

Details Dry developer for developing electrostatic latent images contain Dry developer for developing electrostatic latent images contain

1984-12-18

1986-11-18

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

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

G03G 910

Patent

active

046236058

ABSTRACT:
A dry developer for developing electrostatic latent images comprises a positive charge type carrier and a negative charge type toner. The negative charge type toner includes, as after-treating agents, fine particles of hydrophobic silica in an amount of 0.05-1.0 percent by weight relative to the toner and fine particles of hydrophobic titanium oxide in an amount of 0.1-3.0 percent by weight relative to the toner, the fine particles of hydrophobic silica and the fine particles of hydrophobic titanium oxide being contained in a weight ratio of 1:5 to 1:1.

REFERENCES:
patent: 3392139 (1968-07-01), Dingman
patent: 3720617 (1973-03-01), Chatterji et al.
patent: 3900588 (1975-08-01), Fisher
patent: 4108786 (1978-08-01), Takayama et al.
patent: 4301228 (1981-11-01), Kori et al.

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