Have installed HP4M printer on NT Network (have others already installed). Using Jet Direct card interface. Printer and NT Printer Server on on same segment of Ethernet backbone. Getting random HP Printer - 40 MIO Error Message - Have come in on weekend and printer from every PC using that printer with no error showing up - could this be a problem with collisions of packets on network during daily use? Can press shift + continue and printer will run. Small problem large headache!!