ref: 0aa9e440f8c9e7b5f6bc7b215eccdf3ee9359c7e
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}