The endoscope reprocessor 1 includes a first fluid supply portion I for supplying fluid to the forceps plug base 32, a second fluid supply portion II for supplying a fluid to the suction mouthpiece 42, and a control portion 61, and the control Section 61 simultaneously executes a first control of simultaneously driving the first fluid supply section I and the second fluid supply section II and a second control of stopping the second fluid supply section II or supplying the flow rate of the second fluid supply section II to the first fluid supply A second control of driving the first fluid supply unit I while controlling the flow rate of the first fluid supply unit I to be smaller than the flow rate of the first unit I and stopping the first fluid supply unit I after the first control or the second control And a third control of driving the second fluid supply unit II while controlling the flow rate of the first fluid supply unit I to be smaller than the flow rate of the second fluid supply unit II.内視鏡リプロセッサ1は、鉗子栓口金32に流体を供給する第1流体供給部Iと、吸引口金42に流体を供給する第2流体供給部IIと、制御部61と、を含み、制御部61は、第1流体供給部Iおよび第2流体供給部IIを同時に駆動する第1制御と、第2流体供給部IIを停止しながら又は第2流体供給部IIの流量を第1流体供給部Iの流量よりも少量となるように制御しながら、第1流体供給部Iを駆動する第2制御と、第1制御または第2制御の後に、第1流体供給部Iを停止しながら又は第1流体供給部Iの流量を第2流体供給部IIの流量よりも少量となるように制御しながら、第2流体供給部IIを駆動する第3制御と、を行う。
