I'm currently using AutoCAD R14, and printing on an HP Designjet 740C plotter. The problem I am having is that although the dwg is set up to print out in black and grey, everytime I print the black prints as cyan, and the greys come out as a yellowey colour. I cannot see anything obvious in the plotter configuration, and the plotter is supposed to be set up at the factory default. Im not an AutoCAD whizz, and Im the only one in the office who uses it so was wondering if anyone has any ideas. Cheers