| 摘要 |
A printer comprises a platen, a guide shaft extended in parallel to the platen, a carriage supported on and guided by the guide shaft for sliding movement along the platen, a wheel holder including a motor holder holding a print wheel driving motor and supported on the carriage, and a print wheel cassette held on the wheel holder. The motor holder is supported on the carriage so as to be swingable on the guide shaft or about an axis parallel to the guide shaft by a predetermined angle between a working position, adjacent to the platen to position the wheel cassette held on the wheel holder for a printing operation, and a releasing position distant from the platen to remove the wheel cassette from the wheel holder. The wheel holder is formed by bending a lower portion of the motor holder so that the wheel cassette is seated thereon. Elastic members are attached to the carriage so as to press the wheel cassette resiliently against the wheel holder when the wheel cassette is inserted in the wheel holder and the motor holder is set in place at the working position, so that the wheel cassette is restrained from free movement and vibration during printing operation.
|
