Maintenance device, power transmission switching device, and liquid ejecting apparatus

A maintenance device comprising:

• a carriage which is provided to support a liquid ejecting head that ejects a liquid from a plurality of nozzles and to be reciprocated;
• a cap which approaches the liquid ejecting head as the carriage is moved to a maintenance position where maintenance of the liquid ejecting head is performed, abuts on the liquid ejecting head so as to surround the nozzles, and forms a plurality of internal spaces between the cap and the liquid ejecting head;
• a suction unit which suctions each of the internal spaces of the cap via a suction passage corresponding to each of the internal spaces;
• a selective blocking unit which has a movement member which is moved by being linked with the carriage in a state of being engaged with the carriage in a movement midway area positioned on the path of the carriage moving to the maintenance position, selectively blocks the suction passages according to movement of the movement member, and releases engagement between the movement member and the carriage while maintaining a blocked state of the selected suction passage;
• and
• a separation and approach movement unit which establishes or releases the engagement between the movement member and the carriage by moving the movement member so as to approach or be separated from the carriage.