Netportexpress Pro 100 & Mac Os 10.3.7


I have a Mac Mini running Tiger - OS 10.3.7 connected to an Ethernet router to which is connected, in turn, a NetportExpress Pro100 seriel/Ethernet printer router running an HP LaserJet 6/6MP. When I try to print from the Mac, it 'sees' and recognizes the router, but says 'printer offline' (even though the printer is online).

I know that the printer is online - it prints from other System 9 macs linked to the same network.

Has anyone else encountered this problem?