In a ribbon for a printing apparatus in which a plurality of color ink sections 66a, 66b, and 66c corresponding to color printing are arranged along a lengthwise direction, a first detection mark corresponding to a printing characteristic of the ribbon is attached to a leading area of the ink section 66a to be printed first. The elevator includes a base slidable between a rearward position, for loading a stack of newspapers, and a forward position. By using the crossover regulation edge to measure the shape of an electron beam, the shape of the beam on the front focal plane of the condenser lens can be always checked even if the height of the crossover formed by an electron gun or the resistance of a source forming lens is changed. Motion direction of the movable arms is associated with an operation direction of a joystick.