Patent ID: 6733194
Filing Date: 2004-05-11
Classification: G06F,G06K,G07B

Abstract:
A mail-processing device comprising:at least one printhead; a pixel memory containing binary pixel data, representing information to be printed by said at least one printhead, stored as a plurality of data strings consisting of successive data words with a predefined number of successive data words forming a data string; a print data controller having access to said pixel memory and connected to said at least one printhead for controlling printing of said information by said at least one printhead, said print data controller comprising a Direct Memory Access (DMA) controller and an address generator and, for each printhead, a print data editing unit, the print data editing unit containing two buffer memories; and said DMA controller transferring said binary pixel data word-by-word from said pixel memory into said two buffer memories with successive words in one of said data strings being alternatingly entered into one of said two buffer memories, for intermediate storage therein, said print data editing unit edits the data words stored in the other of said two buffer memories at respective addresses designated by said address generator, with said printhead printing the information represented by the data word stored in said other of said buffer memories.