ref: 930efe67e81635e632f1e6f93e1c56499c79a55f
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}