Typewriter or similar office machine having a printing mechanism carriage

摘要

In typewriters or similar office machines, there is a card holder (28) in addition to the printing mechanism on the movable printing mechanism carriage. The purpose of the card holder is to press a recording medium (1) to be printed against the roller platen (7) in such a way that, when the character is printed, there is no gap between the recording medium (1) to be printed and the platen (13) located behind it. Since said card holder (28) is of very elastic construction, it can very easily happen in the case of printing very stiff recording media (1), such as index cards, that the card holder (28) comes into contact with the ink ribbons and correction ribbons. This can result, in particular in the case of correction ribbons, in the transporting of the correction ribbon being interfered with. During the correction operation, the correction ribbon can strike below the ink ribbon since the cartridge is not raised as well, thus leading to interferences in the function. Additionally, faulty coding of the daisywheel can occur. The correction ribbon or ink ribbon can move between the spokes of the daisywheel during the next rotary adjustment. The invention is based on the object of reliably preventing interferences in the transporting of the ink and correction ribbons caused by the card holder (28). This object is achieved according to the invention in that the ink-ribbon cartridge (2) has support lugs (32, 33) which... the ink and/or correction ribbons (39) guided parallel to the roller platen (7) towards the roller platen (7)... Original abstract incomplete. IMAGE