Abstract: The present invention provides a gap adjusting device that allows gap adjustment with a small torque and also allows more gap positions to be set. The gap adjusting device rotates bushing members so as to change level (PG) of carriage guide shafts for guiding a carriage. An intermediate gear that engages with the bushing members has a boss to be inserted into a cam groove formed in a slidable member that can slide. In accordance with a sliding operation of the slidable member 51, PG is changed. The weights of the carriage and the carriage guide shafts are transmitted to the boss via the bushing members and the intermediate gear and therefore the boss is pushed against a sidewall of the cam groove to be in contact with the sidewall, thereby PG is maintained. Therefore, the slidable member 51 can be caused to slide with a small torque.

Abstract: The present invention provides a gap adjusting device that allows gap adjustment with a small torque and also allows more gap positions to be set. The gap adjusting device rotates bushing members so as to change level (PG) of carriage guide shafts for guiding a carriage. An intermediate gear that engages with the bushing members has a boss to be inserted into a cam groove formed in a slidable member that can slide. In accordance with a sliding operation of the slidable member 51, PG is changed. The weights of the carriage and the carriage guide shafts are transmitted to the boss via the bushing members and the intermediate gear and therefore the boss is pushed against a sidewall of the cam groove to be in contact with the sidewall, thereby PG is maintained. Therefore, the slidable member 51 can be caused to slide with a small torque.