Lexmark 4800 - Manual (Page 131)

3 From the Maintenance tab, check the ink levels of the cartridges.
If an exclamation point (!) appears on a cartridge, the ink level is low. Install a new cartridge. For more information,
see “Installing print cartridges” on page 95.
For cartridge ordering information, see “Ordering print cartridges” on page 101.
Check the USB connection
1 Check that the USB cable is connected to the computer. The USB port on the back of the computer is marked
by the USB symbol. Plug the long, flat end of the USB cable into this port.
2 Make sure that the smaller, more square end of the USB cable is plugged into the back of the printer.
3 Check that the USB cable is not damaged and that the light is on.
Checking printer ports
Make sure the correct printer port is selected.
1 From the Finder desktop, click Applications.
2 From Applications, double-click Utilities.
3 Double-click Printer Setup Utility.
The Printer List dialog appears.
4 Verify that XXXX Series <MAC:nnnnnnnnnnnn> is the default printer, where XXXX is the model series number
of your printer and nnnnnnnnnnnn is the 12-digit MAC address of your printer.
5 If USB is selected instead:
a Select XXXX Series, where XXXX is the model series number of your printer.
b Click Make Default.
c Close the window, and try printing again.
Troubleshooting
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