[. . . ] [. . . ] 3 Temporarily disable any software firewall and close any anti-virus software. 4 Insert the printer software CD in the computer's CD-ROM drive , then follow the onscreen instructions to install the printer software. 2 Double-click the CD icon in the Finder window, if it is not already open. If the lights are flashing, press the power or resume button to reset the printer, and then start at the beginning of this Setup Guide. [. . . ] [. . . ]