COLOR Image Processing for a Printer With a Multi-Line Printhead
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-08
A method is described for processing color image data (pel data) from an input format to a format which is transferred directly to the multi- line printhead for subsequent printing to matrix color printing technologies, such as resistive ribbon thermal transfer, that use a multi- line printhead and a ribbon with multiple color tracks. The specific items disclosed are the data structures and the processes unique for color image data. A typical resistive ribbon thermal transfer printer which makes use of the arrangement described contains a printhead with 120 equally spaced electrodes which span a vertical dimension of one-half inch. Such a printhead is typically used to simultaneously print three text lines at 6 lines/inch, 4 text lines at 8 lines/inch, etc.