Ribbon cartridge for printers

A ribbon cartridge for printers, comprising a longitudinally elongated case having a broad base portion, two parallel side plates, an inlet for the ribbon at a first longitudinal end thereof and an outlet for the ribbon at a second longitudinal end thereof, a sliding guide longitudinally slidably mounted in said case, and an endless ink ribbon enclosed in said case, a part of which is exposed outside said case between said inlet and outlet, a greater part of said ribbon being enclosed in said case in a space between said sliding guide and said first longitudinal end of said case, extending therein in a zigzag manner, means for stopping said sliding guide at a position, said sliding guide comprising a front guide plate at an inlet side thereof, a rear guide plate at an outlet side thereof apart from said front guide plate, and a pair of side frames, said front guide plate having an inlet slit therein parallel to said side frames, and said rear guide plate having an outlet slit therein, said outlet slit in said rear guide plate of said sliding guide being inclined sideways at an oblique angle with respect to said side frames, said means being provided to stop the sliding guide so as to form a space between said rear guide plate and said second longitudinal end, said ink ribbon being engaged within both of said slits so as to correct bending or twisting of said ribbon.