Network Printer not showing up anymore

I have WinXP Prof. and I've had a shared printer using USB
hooked up for the past year. Two weeks ago I can no
longer print to the printer from another PC. It says the
netowrk connection is not there. However, from my other
PCs I can see the PC that the printer is hooked up to and
I can see the shared drives on that PC that the printer is
hooked up to. I can no longer see the printer. I have
double checked to ensure the printer is share...and it
is. I've even reinstalled the printer software and I
still cannot see the printer. Any suggestions?

Johnny