Xerox Corporation

Bradley W Smith

David L Salgado

Fritz F Ebner

David Birnbaum

Tse-Kee Chan

Stephen F Linder

John Y Zhang

Likang Guo

Vibhaker Moudgil

A printer driver enables a user to determine whether the features that are required to print a specified job are available to a selected network printer. The printer driver queries the selected printer to acquire the current status and other relevant information for each feature that is required to print the job, then provides the results of the query at a user interface. Accordingly, if any of the required features are unavailable to the selected printer, the user can print the job using another printer or take some other appropriate action.

Driver that presents context sensitive information about device features

A system for trapping of a dark image object on a lighter colored background is disclosed. In a system using a page description language including overprint operators, black image areas (such as text, lines, graphic objects and the like) can be set to overprint colored background areas in a manner that eliminates rendered image defects including page-colored 'halo' effect that can occur when the cutout background area underlying the black object is misregistered with the black object that was intended to cover the cutout area. In other systems, the present invention may be employed as a disabling of the undercolor removal system of a colored area that would otherwise be present under the black object. Systems using black plus at least one other toners or ink color (such as cyan, magenta and/or yellow or many other colors) can usefully employ the system of the present invention. The trapping system of the present invention may also be employed on an object-oriented basis, such that different image object types are trapped according to the system of the present invention and at least one other trapping system.

Digital image trapping system

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Castile, NY, United States of America

Bradley W Smith