Patent ID: 7973966

Claim:
A method of printing a compressed image, the method comprising the steps of: receiving the image, having a bi-level black data layer and a continuous tone (contone) CMYK data layer, from an image host; expanding the image by decompressing the two data layers in parallel; halftoning the contone CMYK data layer into bi-level CMYK data layer; compositing the bi-level black data layer over the bi-level CMYK data layer to form a composited bi-level CMYK image; separating the color planes of the composited bi-level CMYK image, and separating each color plane into even and odd pixels; storing the odd and even pixels of each color plane in respective odd and even FIFOs for each color; and printing the composited bi-level CMYK image with a pagewidth printhead onto a print medium.