Photocopying – Contact printing – Light boxes
Patent
1991-12-13
1993-11-16
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
355246, 355326R, G03G 1500
Patent
active
052628256
ABSTRACT:
A method for operating an electrophotographic proofing system for generating color proofs from image information during multiple imaging cycle proofing runs. Charge model information, development model information and toner replenishment model information are stored for each component color. Actual photoconductor charge characteristics are measured during the imaging cycles of the proofing runs. Actual toner characteristics from component color test patches developed during the imaging cycles are also measured. The photoconductor is charged during the imaging cycles as a function of the charge characteristics measured during a preceding imaging cycle for the same component color, and a as function of the charge model information for the color. The photoconductor is toned during imaging cycles as a function of toner characteristics measured from test patches during a preceding imaging cycle for the same component color and as a function of the development model information for the color. Working toner is replenished after the imaging cycles as a function of the development parameters used to tone the photoconductor during the imaging cycles for the same component color and as a function of the replenishment model information for the color. Charge model information and the development model information for each component color are updated as a function of measured values after the imaging cycles.
REFERENCES:
patent: 2956487 (1960-10-01), Giaimo, Jr.
patent: 3612753 (1971-10-01), Korman
patent: 3779204 (1973-12-01), Altmann
patent: 4019102 (1977-04-01), Wallot
patent: 4082451 (1978-04-01), Patel
patent: 4179213 (1979-12-01), Queener
patent: 4248524 (1981-02-01), Takahashi
patent: 4262071 (1981-04-01), Larson
patent: 4279498 (1981-07-01), Eda et al.
patent: 4312589 (1982-01-01), Brannan et al.
patent: 4348099 (1982-09-01), Fantozzi
patent: 4348100 (1982-09-01), Sneling
patent: 4432634 (1984-02-01), Tabuchi
patent: 4502777 (1985-03-01), Okamoto et al.
patent: 4502778 (1985-03-01), Dodge et al.
patent: 4519695 (1985-05-01), Murai et al.
patent: 4564287 (1986-01-01), Suzuki et al.
patent: 4587536 (1986-05-01), Saito et al.
patent: 4647184 (1987-03-01), Russell et al.
patent: 4693593 (1987-09-01), Gerger
patent: 4708459 (1987-11-01), Cowan et al.
patent: 4724461 (1988-02-01), Rushing
patent: 4761672 (1988-08-01), Parker et al.
patent: 4780744 (1988-10-01), Porter et al.
patent: 4806980 (1989-02-01), Jamzadeh et al.
patent: 4829336 (1989-05-01), Champion et al.
patent: 4839722 (1989-06-01), Barry et al.
patent: 4847659 (1989-07-01), Resch, III
patent: 4853738 (1989-08-01), Rushing
patent: 4860059 (1989-08-01), Terashita
patent: 4860924 (1989-08-01), Simms et al.
patent: 4878082 (1989-10-01), Matsushita et al.
patent: 4879577 (1989-11-01), Mabrouk et al.
patent: 4886730 (1989-12-01), Ota et al.
patent: 4894685 (1990-01-01), Shoji
patent: 5019472 (1991-05-01), Beneck et al.
Research Disclosure dated Nov., 1989, pp. 821-827.
Electrophotographic Systems Solid Area Response Model, by K. Bradley Paxton, Eastman Kodak Company, Rochester, New York 14650, Society of Photographic Scientists and Engineers, 1978, pp. 159-164.
Exposure Control in Laser Printing, by R. J. Straayer and R. E. Davis, Datapoint Corporation, 9725 Datapoint Drive, San Antonio, Tex. 78284, SPIE vol. 498 Laser Scanning and Recording, 1984, pp. 83-89.
Principles of Color Proofing, Bruno, Gama Communications, 1986, Chapter VII.
Declaration of Lee H. Stocking and attached Exhibits 1-4.
Bresina Larry J.
Kidnie Kevin M.
Nordeen Charles K.
Zwadlo Gregory L.
Griswold Gary L.
Kirn Walter N.
Levinson Eric D.
Minnesota Mining and Manufacturing Company
Pendegrass Joan H.
LandOfFree
Density process control for an electrophotographic proofing syst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Density process control for an electrophotographic proofing syst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density process control for an electrophotographic proofing syst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-25230