Electrostatic latent image developer

Details Electrostatic latent image developer Electrostatic latent image developer

1993-10-13

1994-10-25

Grimley, A. T.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

4301066, 430109, 430111, 430137, G03G 1508

Patent

active

053591470

ABSTRACT:
An electrostatic latent image developer is composed of 10 to 70 parts by weight of a magnetic toner including at least a magnetic powder and a resin, the toner having an average particle size of 5 to 10 .mu.m, a bulk density of at least 0.4 g/cm, a coherence of not larger than 20%, and a volume resistivity of at least 10.sup.9 .OMEGA. cm at an AC electric field of 1 kHz, and 30 to 90 parts by weight of a carrier made of a transition oxide, the carrier having an average particle size of 30 to 70 .mu.m. The toner is uniformly charged so that quick rising-up of the charge is possible. The developer provides high quality, uniform images without blurring.

REFERENCES:
patent: 4957840 (1990-09-01), Sakashita et al.
patent: 5009973 (1991-04-01), Yoshida et al.
patent: 5053305 (1991-10-01), Aoki et al.

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