Black-box models for laser electrophotographic printers–recent progress

In the electrophotographic printing process, the deposition of toner within the area of a given printer-addressable pixel is strongly influenced by the values of its neighboring pixels in the digital halftone image. This interaction between neighboring pixels is complex and nonlinear. To account for these effects, a printer model can be embedded in the halftoning algorithm before the printing process. Models that are designed to predict the effect of these factors on the printed halftone page can be used to design halftoning processes that will yield higher print quality, more consistently.In our previous work, we developed a strategy to account for the impact of a 5×5 neighborhood of pixels on the measured value of a printer-addressable pixel at the center of that neighborhood. We also examined the potential influence of a much larger neighborhood of pixels (45×45) on the central printeraddressable pixel. In the present …