TROUBLESHOOTING9.32Common Macintosh Problems (SCX-4720F/4720FS only)Problems in the ChooserPrinting ErrorsProblem Possible Cause and SolutionThe printer drivericon does not appearin Chooser.Software is not installed correctly.• The LaserWriter driver should be present as part of theMacintosh OS. Make sure that the LaserWriter driver is inthe Extensions folder within the Systems folder. If not,install the LaserWriter driver component from theMacintosh OS CD.• Make sure that you are using a high-quality cable.• Make sure that the machine is on the correct network.Select Network or AppleTalk Control Panel fromControl Panels in the Apple menu and then choose thecorrect network.The machine namedoes not appear inthe Select aPostScript Printerbox in the Chooser.• Make sure that the cables are connected correctly and themachine is turned on.• Check if “Ready” appears on the display of the controlpanel. If not, press the Stop/Clear button to switch yourmachine to on-line.• Make sure that the correct printer driver has been selectedin Chooser.• If the machine resides on a network with multiple zones,make sure that the correct zone is selected in theAppleTalk Zones box in Chooser.• Make sure that AppleTalk is on; the button next to Activeis selected in Chooser. You may need to restart thecomputer to activate the change.Problem Possible Cause and SolutionYou cannot use thecomputer while themachine is printing.Background Printing has not been selected.• For LaserWriter 8.3, turn Background Printing on in theChooser. Status messages will now be redirected to thePrint Monitor allowing you to continue working while thecomputer is processing data to be sent to the machine.• For LaserWriter 8.4 or higher, turn Background Printingon at the Print window.