Many monochrome printers print different colors in different shades of gray, giving a dotted, blotchy appearance on the paper. Ensure that the All Colors to Black check box is enabled in the Printer Defaults dialog box. If this doesn't work, you may need to set up your printer driver in the Windows Control Panel to set all colors to black. If your printer driver doesn't have an options to set all colors to black, you should use the Selection Filter (SF), Change Text Properties (XT) and Change Line Properties (XL) routines to change the unsatisfactory colors to black.