We're trying to set up iPrint on Macs in a lab. The lab has iMacs which print to a couple Dell printers. The iMacs print just fine to one of the printers (5210n b/w) but not to the other (5110cn color). It looks like it prints though nothing comes out of the printer. Direct IP printing works fine, btw.

To make things stranger, we have MacBook Pros which print just fine to the 5110cn using the same PPD driver.

So I guess my question is, do you think the problem is in the driver or the iMacs?