Electrophotographic positively chargeable developer containing s

Details Electrophotographic positively chargeable developer containing s Electrophotographic positively chargeable developer containing s

1986-11-12

1987-07-14

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

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

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

106308N, 438404, 430122, G03G 908

Patent

active

046802452

ABSTRACT:
An electrostatic image is developed by disposing an electrostatic image bearing member which holds an electrostatic image on its surface and a developer carrying member which carries an insulating developer on its surface with a certain gap provided therebetween, at a developing section bringing an insulating developer containing a nitrogen-containing compound to a thickness thinner than the gap on the developer carrying member and transferring said developer onto the above electrostatic image bearing member at the developing section. The nitrogen-containing compound has nitrogen in the form of a heterocyclic ring and imparts stable positive chargeability to the developer.

REFERENCES:
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patent: 3542681 (1970-11-01), Mutaffis
patent: 3551337 (1970-12-01), Robinson
patent: 3627522 (1971-12-01), Jacknow
patent: 3844966 (1974-10-01), Nelson
patent: 4265197 (1981-05-01), Toyono
patent: 4301228 (1981-11-01), Kori et al.
patent: 4309498 (1982-01-01), Yamashita et al.
patent: 4345015 (1982-08-01), Hendriksma et al.

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