Hello again,
For PrintFab didn't work properly on Airport Express, i deinstalled my Canon and the PrintFabdrivers under Leopard.
I installed Canon drivers again - the printer works fine,on Airport Express,too.
I installed PrintFab drivers, the printer doesn't work on USB (directly connected to the Mac).
I installed usbtb - it didn't find any PrintFab driver, for they are not installed in the place, where e.g. the gutenprintfiles are.
Why do the PrintFab drivers not work directly on USB???