First off, the Epson does not support desktop printing, so you will not see that.
As for the other, I would start trashing printing prefs. If that doesn't work, I would do a clean system install. Something in the system is not happy when printing occurs. That may be the chooser, so clean install would get you all new control panels and such.
This may sound drastic, but unless someone rushes in with help, I'd spend my Sunday afternoon reinstalling.
Don