Toner control system and method for electrographic printing

Details Toner control system and method for electrographic printing Toner control system and method for electrographic printing

1992-01-28

1994-11-29

Picard, Leo P.

Photocopying

Contact printing

Light boxes

118688, 355208, 430117, G03G 1510

Patent

active

053694767

ABSTRACT:
Toner control system and method for an electrographic printer in which toner is delivered from a reservoir to a toner fountain and there applied to an electrostatically charged sheet to form an image. The visual quality of the image is monitored, and toner concentrate is added to the toner in response to the monitored quality to increase the amount of pigment particles in the toner and thereby maintain a substantially constant image quality. The concentrate is added to the toner in a return line between the fountain and the reservoir in relatively small, predetermined amounts, and it is mixed before being added. In the disclosed embodiments, a test image is formed outside the main image on the sheet, and the brightness of one or more predetermined colors in the test image is monitored. This system and method are applicable both to monochrome images and to multicolor images.

REFERENCES:
patent: 4277162 (1981-07-01), Kasahara et al.
patent: 4398818 (1983-08-01), Jeromin et al.
patent: 4519695 (1985-05-01), Murai et al.
patent: 4660152 (1987-04-01), Downing et al.
patent: 4671309 (1987-06-01), Iemura et al.
patent: 4675696 (1987-06-01), Suzuki
patent: 4827279 (1989-05-01), Lubinsky et al.
patent: 4831420 (1989-05-01), Walsh et al.
patent: 4894685 (1990-01-01), Shoji
patent: 4929978 (1990-05-01), Kanamori et al.
patent: 5001027 (1991-03-01), Otsuka et al.
patent: 5189521 (1993-02-01), Ohtsubo et al.
patent: 5212029 (1993-05-01), Scheuer et al.

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