Method of recording images and an image-forming device for appli

Details Method of recording images and an image-forming device for appli Method of recording images and an image-forming device for appli

1995-12-20

2000-03-21

Barlow, John

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347 55, B41J 239, B41J 2395, B41J 240, B41J 206

Patent

active

060408472

ABSTRACT:
A method of and device for recording images on an image-recording medium with a dielectric surface. A voltage is applied in accordance with an image pattern between a set of image-recording electrodes and a companion electrode. Toner powder is deposited on the dielectric surface in accordance with the applied voltage. Image recording is effected by alternately bringing the image-forming electrodes to a positive and negative potential with respect to the companion electrode. According to one specific embodiment, a high-frequency AC voltage is applied during image recording to the companion electrode or at least the image-forming electrodes at times when the latter do not contribute to image forming.

REFERENCES:
patent: 3946402 (1976-03-01), Lunde
Patent Abstracts of Japan, vol. 016, No. 450 (M-1312), Sep. 18, 1992 & JP,A, 04 156351 (Casio Comput Co Ltd).
Patent Abstracts of Japan, vol. 012, No. 406 (P-777), Oct. 27, 1988 & JP,A,63 144364 (Canon Inc).

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