| 摘要 |
A printer including a stepper motor for moving a carriage, a detector for detecting arrival of the carriage at a detection point within a range of the carriage movement, a stop for determining one end of the carriage movement range, and a first setting device operable upon power application to the printer, for activating the motor to move the carriage toward the stop until the carriage arrives at the detection point, and further activating the carriage in the same direction by a predetermined number of steps from the detection point such that the motor is activated without displacement thereof with the carriage held in abutment on the stop for at least the last one step, whereby a zero point of the carriage is established for the first time after the power application. The printer further includes a distance detecting device operable after the establishment of the carriage zero point, for detecting a distance between the stop and the detection point, and a second setting device operable when it is required to establish the carriage zero point for a second and subsequent times after the power application. The second setting device establishes the carriage zero point, based on the distance.
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