On modeling and simulation of digital laser printing: An integrated model from binary image to toner image

A Two-Dimensional Spatial-based Wiener Printer Model Embedded Into Model-based Digital Halftoning

“…x y is the OPC surface potential after exposure, t Z is the toner concentration, d V is the developing roller voltage,  is the speed ratio between the developing roller and the OPC, p is the ratio of the single projected area to the total projected area of the carrier on the OPC, t  and c  are the toner particle density and the carrier particle density, respectively, t R is the toner particle radius, Q M is the average value of the charge-to-mass ratio, and 0  is the permittivity of free space. Readers interested in details on derivation and verification of this model may refer to (Chen and Weng, 2009) and the references therein.…”

“…A variation of the tabular model which may further reduce the number of parameters is the offset-centered model (Wang et al, 1994). More analytic and comprehensive printer models (specifically for laser electrophotographic printers), most of which were developed independent of halftoning algorithms, have been proposed by many researchers, e.g., (Chen et al, 2003(Chen et al, , 2008Chen and Weng, 2009) and the references therein. As demonstrated by Kacker and Allebach in their work, combination of a detailed electrophotographic process model with the halftoning algorithm of direct binary search produces halftone and printed images of very high quality.…”

“…A set of specifically designed test images serve as input. Those images were 'printed' using a comprehensive model of monochrome laser electrophotographic printer (Chen et al, 2003(Chen et al, , 2008Chen and Weng, 2009), which generate corresponding reference output images. Gradient or back propagation algorithm along with those input and desired output images is then implemented to optimize the parameters of the Wiener model.…”