Abstract: A roller holding apparatus for a printing press which holds bearing portions at two end portions of a roller includes an annular roller holding portion and a bolt. The annular roller holding portion is arranged at each of the two end portions and has a semicircular holder and a semicircular cap pivotally mounted on the semicircular holder and capable of being opened/closed. The bolt causes the holder and the cap of the roller holding portion to fix each of the bearing portions at the two end portions of the roller.

Abstract: An ink fountain apparatus for a printing press includes an ink fountain roller, an ink fountain, follow-up bearings, and springs. The ink fountain roller supplies a printing ink to a plate cylinder. The ink fountain has an ink blade disposed to have a predetermined gap with the circumferential surface of the ink fountain roller and movable forward and backward to approach to and separate from the circumferential surface of the ink fountain roller. The follow-up bearings are fixed to the ink fountain and contact the circumferential surface of the ink fountain roller to follow up a shape of the circumferential surface of the ink fountain roller. The springs bias the ink fountain toward the circumferential surface of the ink fountain roller.