sharing of c6180 memory_card

I'm running Vista Ultimate currently. I have 3 computers on my network, a
2003 server and two Vista machines. I have purchased an HP printer that I
have networked and have on a static IP. This printer has a memory card
reader for reading different types of flash memory devices.

I am not able to access \\printer\memory_card from the vista machines. I get
a message about the device not being available. However, my server (windows
2003) can access it without a problem.

I can ping the device as well as print to the printer without an issue. I
just have a problem when I try go into the "memory_card" directory.

Upon searching for this issue, I've seen others have had it but have yet to
see a solution. Thanks for any help that can be provided.