HP DesignJet 230 600 600 black ink cartridge -- approx. US$30 A gimp-print-ijs Works best with GIMP-Print, here it also does its maximum resolution of 600 dpi.<p> Old user comments:<p> Choose the driver for the HP DesignJet 650C<p> Choose "Normal color printing with color cartridge" option in the printtools 'setup' option for the driver.<p> The driver only has a 300x300dpi resolution, though the plotter can do up to 600x600. Don't know if/how to make it work at a higher resolution, or if it doesn't actually do 600dpi, in spite of what the driver says. <p> Also, the maximum paper size listed in the printtool is A3, although this plotter can do up to A1.<p> This plotter understands the HPGL, HPGL/2 and PJL language.