Lexmark 6500 Series - Manual (Page 167)

External print server is not working
If there is an external device connected between the computer and the printer, make sure it supports bidirectional
communication.
Disconnect the printer from the external device, and connect it directly to the computer. If the printer works, there
may be a problem with the print server. See the documentation that shipped with the print server.
There may be a problem with the USB cable. Try a different cable.
Removing an external print server
1 Press to turn the printer off.
2 Make sure the power to the print server is off.
3 Remove the USB cable from the external print server.
4 Disconnect the external print server from the computer.
5 Connect the printer USB cable to the printer.
6 Press to turn the printer back on.
Cable is not connected, is loose, or is damaged
The printer cable must be fully connected and undamaged for proper communication.
Make sure the USB cable is connected to the USB port on the back of the computer
The USB port on the back of the computer is marked by . Plug the long, flat end of the USB cable into this
port.
Make sure the other end of the USB cable is connected to the back of the printer
Plug the smaller, more square end of the USB cable into the back of the printer.
Make sure the cable is not damaged or loose
Make sure:
• The USB cable is not damaged.
• The light is on.
For more information, see the related topic below.
Printer is plugged in but does not print
These are possible solutions. Try one or more of the following:
Make sure the printer is set as the default printer
Try printing a test page.
Make sure the print queue is ready to print
Make sure the printer is set as the default printer and is not being held or paused.
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