Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1985-11-27
1986-09-30
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, 430111, G03G 914
Patent
active
046146989
ABSTRACT:
A two-component electrophotographic developer for use in developing a latent electrostatic image of a low potential. The developer is composed of a mixture of a magnetic carrier of spherical sintered ferrite particles having raised and depressed portions attributed to the primary particles on their surface, a median size of from 30 to 50 micrometers, an apparent density of less than 2.6 g/cc and an electric resistance, measured in the form of a magnetic brush, of from 6.times.10.sup.4 to 2.5.times.10.sup.6 ohms and chargeable toner particles having a volume inherent resistivity of at least 1.times.10.sup.13 ohms-cm and a specific inductive capacity of from 4 to 6. In a preferred embodiment, the chargeable toner particles have a median size of from 10 to 14 micrometers and are substantially free from particles having a particle diameter of not more than 5 micrometers. The developer can give an image of a high density, a high resolution and excellent gradation without brush marks.
REFERENCES:
patent: 3914181 (1975-10-01), Berg et al.
patent: 4414322 (1983-11-01), Miyakawa et al.
patent: 4416964 (1983-11-01), Miyakawa et al.
Higashiguchi Teruaki
Kawakami Yoshinobu
Miyakawa Nobuhiro
Yamamoto Kazuo
Yano Koji
Martin Roland E.
Mita Industrial Co. Ltd.
LandOfFree
Two-component electrophotographic developer with magnetic carrie does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Two-component electrophotographic developer with magnetic carrie, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-component electrophotographic developer with magnetic carrie will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-984565