Liquid processing system and control method

A control method which is executed in a liquid processing system which comprises:

• processing units of n stages in total (n is a natural number of two or more), each processing unit including one or a plurality of processing lines, each processing line including an ultraviolet ray irradiating unit, and the number of processing lines of an m-th (m is a natural number smaller than n) stage processing unit being larger than the number of processing lines of an m+1-th stage processing unit;
• and
• adjusting section which adjusts an output of an ultraviolet ray irradiating unit provided to a processing unit of a predetermined stage, the control method comprising:
• fixing an output of an ultraviolet ray irradiating unit provided to a processing unit of a stage other than the predetermined stage, and
• adjusting the output of the ultraviolet ray irradiating unit provided to the processing unit of the predetermined stage such that a liquid processed in processing lines of an n-th stage processing unit of a final stage is in a desired processing state.