1. A printing device comprising: an input receiving a continuous tone image; an image processor electrically connected to said input; and a printing engine electrically connected to said image processor, said image processor creating a first halftone image from said continuous tone image, said image processor creating a second halftone image from said continuous tone image, said image processor producing a third halftone image comprising common pixels that are common to both said first halftone image and said second halftone image, said image processor applying a toner reduction mask to said third halftone image by removing a portion of said common pixels from said third halftone image according to said toner reduction mask to produce a fourth halftone image, said fourth halftone image having only non-printing pixels and remaining ones of said common pixels, said image processor substituting said non-printing pixels for printing pixels in said first halftone image to create a reduced-toner halftone image, said image processor detecting edges of features within said continuous tone image to identify edge pixels of said features, said image processor adding said edge pixels to said reduced-toner halftone image to produce a print-ready halftone image, and said printing engine printing said print-ready halftone image on print media.