A No printer detected message may appear while you are installing the printer on a Macintosh running OS 10.3 (Panther). This error indicates that the system optimization process has not completed; however, this cannot be seen because the dialog is running behind the Lexmark 9300 Series Setup Assistant (LSA). See the image below.
Make sure the Optimizing System Performance process has completed before running the LSA.
If you need additional assistance with this issue, please contact Lexmark Technical Support. NOTE: When calling for support, you will also need to know your printer model type and serial number.
Please call from near the printer and computer in case the technician asks you to perform a task involving one of the devices.