Xerox Corporation

David R Wyble

Bruce Earl Thayer

Mark A Gwaltney

An improved method for estimating toner usage in digital xerographic printers and copiers. The method is characterized by taking into account digital image dot spreading which results in the area of a pixel not being developed fully and some areas outside of the pixel being developed. Thus, the improved method takes into account the departure of a developed image from an ideal shape (i.e. square). To this end, the improved method compensates for departure of a developed image from an ideal shape. In carrying out the method estimated toner usage is based on pixel groupings rather than simple pixel counting.

Method for estimation of toner usage in digital xerographic copiers and

Toner removal device for removing residual toner and debris from a charge retentive surface after transfer of toner images from the surface. This device is characterized by an integral extruded multi-vaned toner transport member for vertical removal of toner accumulated at a cleaning blade chiselingly removing toner from the charge retentive surface and transporting toner from the area about the blade to a augering transport device for transporting toner to a sump.

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Webster, NY, United States of America

David R Wyble