High resolution medical diagnostic laser printer

摘要

A high resolution continuous tone medical image printer is capable of printing a high resolution image on a plurality of different sized media. In a normal resolution mode, a medical image of mxn pixels is printed on a first sized media with a variable pixel clock operating at a first pixel clock rate, and in a second resolution mode where the medical image of mxn pixels is printed on a second sized media larger than the first sized media in either or both the line scan direction and the page scan direction, the pixel clock is operated at a pixel clock rate less than the first pixel clock rate such that m pixels are printed per line with the pixel size being larger in the line scan direction and such that lines of pixels are added so that more than n lines of pixels are printed in the page scan direction and such that the beam of light size, the scanner speed and the page scan speed are held constant no matter what sized media is being printed.