Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1989-08-25
1991-03-12
Welsh, David
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430111, 430122, 430903, G03G 1309
Patent
active
049992724
ABSTRACT:
An image forming method, comprising the steps of: providing an electrophotographic photosensitive member comprising an organic photoconductor, and a toner-carrying member carrying thereon a magnetic toner disposed opposite to the photosensitive member with a predetermined clearance in a developing region; the photosensitive member comprising at least two species of charge-generating substances and carrying thereon a digital and an analog electrostatic images; carrying the magnetic toner on the toner-carrying member to the developing region while regulating the magnetic toner so as to provide a thickness smaller than the clearance, the magnetic toner having a specific particle size distribution and a volume-average particle size of 4-10 microns; and developing the electrostatic images with the magnetic toner.
REFERENCES:
patent: 4284701 (1981-08-01), Abbott et al.
patent: 4666813 (1987-05-01), Sakashita
patent: 4885222 (1989-12-01), Kaneko et al.
patent: 4957840 (1990-09-01), Sakashita et al.
Patent Abstracts of Japan, vol. 7, No. 196 (P-219) (1341), Aug. 26, 1983 & JP-A-58 95748 (Hitachi), Jun. 7, 1983.
Fujiwara Masatsugu
Nakahara Toshiaki
Sakashita Kiichiro
Tanikawa Hirohide
Yoshida Satoshi
Canon Kabushiki Kaisha
Welsh David
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