I have a new Lexmark C543dn printer (USB). I have tried several things to make this work - none successfully:
-I have run the install process on the Lexmark CD. The printer showed up in the printers list, but as LPT1, which didn't work, there was no option in the Ports tab (Printer Properties) to change it to USB. I uninstalled the LexMark software.
- I then plugged the USB printer in and had the PnP process find the driver on the Lexmark CD. This looked to work - PnP indicated that it was installed and ready to use. When I went to the printer list the printer does not appear. I then tried to manually add the printer, using the drivers on the harddrive, again there is no USB printer port showing up in the Add Printer dialog. I tried the option to add a port, but USB was not available.
Outside the add printer process I have also tried:
- replaced USBMON.DLL, with the same file from another Windows XP SP2 printer.
- added a USB 2.0 card to the computer, then trying the same steps above with the printer plugged into the new port.