usb conflicts with printer

Lexmark printers are designed for direct connection to your PC only. The use of a USB hub device on your system may cause communication and timing problems between the PC and printer, and cause the printer not to be detected as online. If you are having technical difficulties with your printer, and you have installed a USB hub, this should be removed and the printer uninstalled and reinstalled without use of the hub.
You need to ensure the USB port is selected.

For Windows 95/98/ME:

1. Click on Start >> Settings >> Printers

2. Right click on the printer icon and select Properties

3. Select Details from the tabs at the top of the screen

4. Ensure the first text box has Lexmark USB port displayed. If it does not, click on thearrow at the end of the box and select it from the list. It may say USB 001 or may have the name of your printer next to USB. Click Apply then OK.
Windows XP Windows 2000

1. Click on Start >>Control Program>>Printers 1. Click on Start>>Settings>>Printers
and Other Hardware>>Printers and Faxes
2. Right click on the printer icon and select properties 2. Right click on the printer icon and select properties
3. Select Ports from the tabs at the top of the screen
3. Select ports from the tabs at the top of the screen
4. Ensure that USB or LPT n is checked. If correct
4. Ensure that USB or LPT n checked. If correct port does not have a check mark, check the
does not have a check mark, check the correct box. It may say USB 001 or mayhave the
It may say USB 001 or may have the name of your name of your printer next to USB. Click "Apply"
printer next to USB. Click "Apply" then "OK". then "OK".

If this is all good then make sure the USB Controller and NIC/MODEM are not sharing the same IRQ. If they are you will need to force them to different IRQ?s.