Color recording apparatus

Details Color recording apparatus Color recording apparatus

1991-07-22

1993-01-19

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355326, G03G 1502

Patent

active

051810727

ABSTRACT:
In a color recording apparatus, charges are applied to a latent electrostatic image carrier by a scorotron having a grid after development of a first latent electrostatic image on the carrier with a first color toner. Thereafter, a second electrostatic latent image is formed and developed with a second color toner. If the charges given by the scorotron have the same polarity as a charging polarity of the first color toner, a potential of the grid is set to be equal to a non-image portion potential of the first latent electrostatic image, or set to have a polarity opposite to that of an image portion potential of the first latent electrostatic image assuming that the non-image portion potential is regarded as 0 V as a reference potential. If the charges given by the scorotron have a polarity opposite to the charging polarity of the first color toner, a potential of the grid is set to have a polarity opposite to that of the non-image portion potential image assuming that the image portion potential is regarded as 0 V as a reference potential.

REFERENCES:
patent: 4791452 (1988-12-01), Kasai et al.
patent: 4811045 (1989-03-01), Matsushita et al.
patent: 4828953 (1989-05-01), Oka et al.

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