Method and means for reducing frame effect in electrographic ima

Details Method and means for reducing frame effect in electrographic ima Method and means for reducing frame effect in electrographic ima

1981-03-23

1984-03-06

Moses, Richard L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 355 74, 355 77, 118659, 430117, G03G 1510

Patent

active

044350716

ABSTRACT:
An electrographic recording technique obtains superior image definition by providing a charged border around the image area of the recording medium and directing toner across the face of the medium at an appreciable velocity so that the toner particles are preferably attracted to unexposed areas of the medium and the charged border rather than to fully exposed areas of the medium.

REFERENCES:
patent: 3749859 (1973-07-01), Sato
patent: 3784301 (1974-01-01), Sato
patent: 3791345 (1974-02-01), McCutcheon
patent: 3862618 (1975-01-01), Sato et al.
patent: 3964436 (1976-06-01), Plumadore
patent: 3972610 (1976-08-01), Gross et al.

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