ref: 02d09919941c8f33f93f9e643a2aebb1fea14a91
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}