Imaging systems with fluorescent and phosphorescent toner

Details Imaging systems with fluorescent and phosphorescent toner Imaging systems with fluorescent and phosphorescent toner

1976-09-10

1978-01-24

Borchelt, Archie R.

Radiant energy

Source with charged plate-type detector

250461R, G03G 1300

Patent

active

040705773

ABSTRACT:
Apparatus and method for improving contrast in the visual image formed by toner deposited on an electrostatic image such as is formed in xerography and ionography. Hard copy and real time electrostatic imaging systems utilizing a fluorescent toner in the form of particles having a fluorescent core and an electrophoretic coating. A viewing system with a radiation source of a wavelength for exciting the fluorescent toner particles and preferably a filter for suppressing the excitation radiation in the fluorescent image.

REFERENCES:
patent: 2940848 (1960-06-01), Kostelec et al.
patent: 3854043 (1974-12-01), Hukase et al.
patent: 3940620 (1976-02-01), Houston et al.
patent: 3965352 (1976-06-01), Allan et al.

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