Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1992-12-10
1993-09-21
Fuller, Benjamin R.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
3461531, 355253, 355245, 118657, 118658, G01D 1506, G03G 1509
Patent
active
052473171
ABSTRACT:
A printing device for reproducing information, comprising a movable image-forming element having a dielectric surface, an image-forming station including a magnetic roller provided with a rotatable electrically conductive sleeve and a magnetic system within the electrically conductive sleeve, electrodes to generate an electric field between the image-forming element and the magnetic roller in accordance with an information pattern, while an electrically conductive magnetically attractable toner powder is present in an image-development zone formed between the image-forming element and magnetic roller, the magnetic system generating a magnetic field in the image-forming zone and forming the toner powder into a magnetic toner brush and system for providing a well-defined space in the image-development zone between the electrically conductive sleeve and the image-forming element so that no distortion of the magnetic toner brush occurs during image development in the image-development zone.
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patent: 4370056 (1983-01-01), Hays
patent: 4531832 (1985-07-01), Kroll et al.
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Patent Abstracts of Japan, vol. 10, No. 225 (P-484) (2281) Aug. 6, 1986 and JP-A-61-061185, (TDK Corp) Mar. 28, 1986, abstract only.
Xerox Disclosure Journal, Flexible Roll Shell by Joseph Zelazny, vol. 1, No. 9/10, Sep./Oct. 1976.
Corver Jozef A. W. M.
Hoep Antoon L.
Quirijnen Robertus P. C.
Fuller Benjamin R.
Gibson Randy W.
Oce'-Nederland, B.V.
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