Alfred comments to Batman that if he pounces on the Joker's printing outfit, he could end up with a nasty lawsuit for false arrest. The series establishes over and over that Batman & Robin are duly-deputized officers of the law. Peace officers have official immunity for acts undertaken in the course of their duties, and cannot be sued for false arrest.
When Bruce Wayne asks the Joker for a sample of the phony money he wants printed the Joker starts the press by pulling back on the flywheel however platten presses of that type are started by pushing the flywheel forward not backward.