Xerographic developer

Details Xerographic developer Xerographic developer

1976-03-01

1977-12-27

Hoffman, James R.

Gas separation: apparatus

Magnetic separating means

252 621P, 427 19, G03G 910, G03G 1308

Patent

active

040653056

ABSTRACT:
An improved developer mixture comprising from between about 0.3 and about 5.0 percent by weight of finely-divided colored toner particles blended with at least about 95 percent by weight of carrier particles having an average particle size of between about 30 and 1,000 microns. The carrier particles comprise a mixture of particles wherein from between about 99 percent and about 90 percent by weight of the carrier particles have an average diameter of approximately the same size, and wherein from about 1 percent to about 10 percent by weight of the carrier particles have an average diameter substantially larger than the other carrier particles. Electrostatographic imaging processes employing the developer mixtures are also disclosed.

REFERENCES:
patent: 3236776 (1966-02-01), Tomanek
patent: 3781207 (1973-12-01), Tamm
patent: 3847604 (1974-11-01), Hagenbach et al.
patent: 3895125 (1975-07-01), Tsuchiya et al.

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