Post rip image rendering in an electrographic printer using...

Details Post rip image rendering in an electrographic printer using... Post rip image rendering in an electrographic printer using...

2005-12-13

2005-12-13

Wallerson, Mark (Department: 2626)

Facsimile and static presentation processing

Static presentation processing

C347S131000

Reexamination Certificate

active

06975411

ABSTRACT:
An electrostatographic recording method for printing an image on a receiver comprising the steps of: operating a primary charger to establish a uniform primary voltage level on an image recording member; developing a control patch on the image recording member, measuring density of the control patch to thereby provide a density measurement signal; converting the image into a digital bitmap comprised of an array of pixels wherein each pixel is assigned a digital value representing marking information; rendering the digital bitmap by defining each pixel as either a background pixel, interior pixel, or an edge pixel and reassigning the digital value of one or more of edge pixels or interior pixels independently and as a function of the density measurement signal; modulating electrostatic charge on the image recording member as a function of the digital bitmap after rendering.

REFERENCES:
patent: 5956544 (1999-09-01), Stern et al.
patent: 6121986 (2000-09-01), Regelsberger et al.
patent: 6181438 (2001-01-01), Bracco et al.
patent: 6233062 (2001-05-01), Takamatsu et al.
patent: WO 01/89194 (2002-02-01), None
patent: WO 02/10860 (2002-02-01), None
patent: WO 02/14957 (2002-02-01), None

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