ref: 1c238283cb531d6024f55b96411c061b80df5258
dir: /sys/src/cmd/gs/lib/ras1.upp/
-supModel="SUN rasterfile, 1 Bit, 2 Colors (Ghostscript-Rendering)"
-sDEVICE=uniprint
-dNOPAUSE
-dSAFER
-dupColorModel=/DeviceGray
-dupRendering=/ErrorDiffusion
-dupOutputFormat=/SunRaster
-dupComponentBits={1}