| 摘要 |
A serial printer for printing information on a record material is disclosed. The printer includes a frame and a platen mounted on the frame for rotation about its axis, the platen capable of supporting and advancing record material through the printer. A carriage assembly is also included and has a printing member supported thereon, the carriage assembly being supported for movement along a printing path adjacent the platen. Further, a motor is mounted on the frame and means are included for converting the rotary motion of the motor to movement of the carriage assembly along the printing path, the converting means including a cable mounted at either end to the frame. Additionally, means are included for maintaining a substantially constant tension on the cable, the tensioning means including means coupled to an end of the cable for automatically taking up slack in the cable caused by stretching or wear of the cable.
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