Process for developing a latent image formed on a magnetic surfa

Details Process for developing a latent image formed on a magnetic surfa Process for developing a latent image formed on a magnetic surfa

1984-05-10

1986-09-23

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

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

Magnetic imaging

118657, 4301066, G03G 1300

Patent

active

046135545

ABSTRACT:
The invention relates to a process and a device for developing a latent image formed on a magnetic surface, by means of a magnetic developing powder, in order to form a powder image.
The device contains means (2) for causing the powder (4) to flow onto the magnetic surface (1) uninfluenced by a magnetic field other than that of the magnetic surface (1). These means can consist of magnetic means (3) for taking the powder (4) from a trough (5), means (6) for detaching the powder (4) from the magnetic means (3), and means (7) for bringing the powder (4) into the vicinity of the magnetic surface (1).
This developing device can be used in a printing apparatus containing means for transferring a powder image onto a substrate.

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patent: 4226524 (1980-10-01), Hashimoto
patent: 4266868 (1981-05-01), Bresina et al.
patent: 4368687 (1983-01-01), Kanbe et al.

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