Oliff & Berridge, PLC
Addressable toner applicator and method and apparatus for enhancing custom color characteristics in a contact electrostatic printing apparatus
 A contact electrostatic printing (CEP) apparatus and method provide custom color capabilities. Custom colors can be provided by combining two or more toner layers of different color. Correction of custom color toner patches can also be performed by combining toner layers. Controllable toner applicators apply toner patches in any desired size, shape or density on a support. 
Xerox Corporation
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Chu-heng Weizhong
Liu Zhao