Abstract: An apparatus for reducing friction, tearing, or wrinkling of the surface of a single-ply or multiple-ply continuous medium being fed to a processing station by either sprocket engagement of an edge-perforated medium or pinch roller pressure engagement of the medium as the medium moves in a vertically-oriented path, said reduction being effectuated through selectively altering the contact path length of guides supporting the medium in a direction reducing any friction forces.

Abstract: A computer or a display apparatus with an input function which is of simple construction and has high operability for touch input or pen input. A system body, a cover unit having a display panel with an input function on one side, and connection means such as a rotatable arm, which is rotatably connected to the cover unit and to the system body at a different portion from a portion at which said cover unit is conventionally connected, so as to allow the cover unit to be placed on the system body in a position in which the display panel mounted on the cover unit is placed face up or face down. The cover unit can be placed upside down on the system body without sliding of the cover unit with respect to the system body.