Automatic analyzer

An automatic analyzer, comprising:

• a mechanism base;
• a dispensing mechanism which is configured to be disposed on the mechanism base, and configured to have at least one horizontal drive shaft and one vertical drive shaft for moving a dispensing nozzle;
• a first mechanism which is configured to be disposed on the mechanism base, and comprises a stop position at which the dispensing nozzle is stopped;
• a control section configured to position the dispensing nozzle with the stop position of the first mechanism;
• and
• a data storage section, wherein:
• a member is configured to be disposed on the first mechanism indicating a predetermined first position and a predetermined second position of the first mechanism;
• the horizontal drive shaft of the dispensing mechanism is configured to move the dispensing nozzle in an XY plane;
• the vertical drive shaft of the dispensing mechanism is configured to move the dispensing nozzle in a Z direction vertical to the XY plane;
• the data storage section is configured to store a position adjustment value indicating an XY-plane position corresponding to the stop position, a position adjustment value indicating an XY-plane position of the member at the first position, and a position adjustment value indicating an XY-plane position of the member at the second position;
• the member is configured to be sensed by the dispensing nozzle in order to detect the first position and the second position;
• and
• the control section is configured to calculate a correction value of the position adjustment value indicating the XY-plane position corresponding to the stop position based on a positional relation among the stop position, the first position, and the second position, which are configured to be represented by the position adjustment values as the XY-plane positions, and are further configured to be stored in the data storage section, and the XY-plane positions corresponding to the first and the second positions, which are configured to be detected using the dispensing nozzle.