The /DEVICE option first argument specifies which type of plotter will be used. The same devices recognized by command DEVICE are allowed for this option. PrimaryName indicates the graphic protocol supported by the device, and SecondaryName a variant of this protocol. Among the available device types are the following PS FAST PostScript with hardware pen thickness handling Clipping of wide pens may be inaccurate. PS GREY PostScript with fixed greyscale transfer function for bitmap. Clipping is accurate. PS COLOR PostScript with user controlled color transfer function. A greyscale with equivalent luminosity is is used on non color printers. EPS FAST, EPS GREY, EPS COLOR As PS, but for "Encapsulated PostScript", in which the BoundingBox is computed from the plot boundaries rather than from the Plot Page size. HPGL HPGL language for HP printers.