| abstract |
Provided is a method of printing a compressed image. The method includes the steps of receiving, with a printer controller, the image, having a bi-level black data layer compressed in an Edge Delta and Runlength (EDRL) compression format and a continuous tone (contone) CMYK data layer, from a computer. The method includes the steps of expanding the image by simultaneously decompressing the two data layers in parallel, and halftoning the contone CMYK data layer into bi-level CMYK data layer. Also included are the steps of compositing the bi-level black data layer over the bi-level CMYK data layer to form a composited bi-level CMYK image, transmitting the composited bi-level CMYK image to a memory buffer of pagewidth printer for printing. |