To all: I, like Gavin, think the EX box is actually oem'd by HP from YoYoDyne. It has historicaly been the source of interesting problems not seen in the internal cards. The C30D group are now aware of the problem and are investigating. I will publish the results here. They do agree that there is some misunderstanding between them and the Boise people about supported printers and will to resolve it. Note that setting the idle timer to zero (disabling it) has worked around the problem successfully. As for Marty's comments: The details of the centronics/bitronics issue were not given to me by the Boise engineer. His explanation did not make sense from several angles but he was not interested in exploring this, only in stating that the Jetdirect EX C30D pair are not supported. Note that at this time, it appears that this problem may be a special case and the Boise engineer was too busy talking (!) to listen and simply classed this problem as non-supported device. As for the engine-truck analogy, I called the Peripherals Support Group because that is who you call for JetDirect interface problems. The C30D and the JetDirect EX are two separate products, purchased independently, made by two different maufacturers and you combine them yourself (or combine the JetDirect EX with a non-HP device). Furthermore, since the idle timer is a feature of the EX unit, calling Boise was quite correct. Developers of TCP/IP software to communicate with the JetDirect interfaces typically belong to the HP Peripherals Developer Program (Boise) and receive support writing host drivers for these interfaces from this group... I think most people would agree that the engine-truck analogy makes no sense here... Finally, since the running/not running of the idle timer is a JetDirect issue, the behavior of HPUX is immaterial... BTW, One of the Boise people did take the initiative to call Cupertino and get the balling rolling on resolving the problem with the JetDirect EX/C30D and the internal HP issues that seem to be involved here. rc --------------------------------------------------------------- Richard Corn e-mail: [log in to unmask] RAC Consulting Voice: (360) 357-9572 Olympia, WA. USA fax: (360) 352-8453 ---------------------------------------------------------------