Superparamagnetic image character recognition compositions and processes of making and using
AssigneeXerox Corporation
InventorRonald F. Ziolo
Life of this patent
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Abstract
An image character recognition process comprising: forming an image in a predetermined size and predetermined shape on a receiver member with a marking composition containing a superparamagnetic component; detecting the predetermined size and predetermined shape of the formed image by placing the resulting image bearing receiver member in a magnetic sensing field comprising at least one magnetic sensor and forming a magnetic size and magnetic shape profile map of the detected image; and recognizing the detected image by comparing the magnetic size and magnetic shape profile map of the formed image with reference magnetic profile image maps.
Claims23
An image character recognition printing process comprising:
- providing a superparamagnetic image character recognition composition comprising:
- a magnetic composition comprising nanocomposite particles comprising from about 0.001 to about 60 weight percent of magnetic nanocrystalline particles dispersed in from about 40 to about 99.999 weight percent of a discrete phase matrix;
- and a continuous phase matrix, wherein the discrete phase resides in interstices within the continuous phase matrix;
- and
- forming a printed image with said superparamagnetic image character recognition marking composition on a receiver member, wherein the resulting printed image is superparamagnetic in a magnetic field.
Dependencies are inferred from the claim text.