You didn't say which model Lexmark, but scan through the many Lexmark posts on the External Peripherals section of the forum.  There are many posts with Lexmark interface (communications) problems.  Updating the Lexmark drivers seems to help some, using the front panel USB port seems to help some and with some there is nothing that seems to help.  It's not a Dell issue, I have cusromers, that I support, with other brands of PC's and various Windows Operating Systems and they have the same problems.  One customer went to the extreme and dumped his Lexmark for a HP and no more problems.

Hi

I have the same computer configuration as you, and a lexmark all in one x85 printer. It was doing me the same way, sometimes it would work, the next time it would say it couldn't communicate with printer. Or that it didn't recognize having one attached. I contacted lexmark and they sent me an e-mail with a link to a small piece of software or driver to install and I haven't had anymore problems.  Hope this helps

                                                                                                                                                                olopski

Olopski.. Would you mind providing that link.. I have an X85 and am continually having the same problem of

not communicating with the printer.. If i hear that one more time I am going to have to tear my hair out..

 

DIM 8250 2.4GHz
XP Pro SP1
ATI Radeon 9700 TX 128MB DDR video card
120 GB Ultra ATA/100 Hard Drive
512MB PC1066 RDRAM
NAV 2003
Soundblaster Live! sound card
Intel Pro 100M Integrated PCI NIC card