An endoscope reprocessor comprising: a first fluid supply section including a first liquid supply section configured to supply a liquid and a first gas supply section configured to supply a gas, wherein the first fluid supply section is configured to communicate with a forceps plug pipe sleeve of an endoscope to supply a fluid; a second fluid supply section including a second liquid supply section configured to supply a liquid and a second gas supply section configured to supply a gas, wherein the second fluid supply section is configured to communicate with a suction pipe sleeve of the endoscope to supply a fluid; and a control section configured to control the first fluid supply section and the second fluid supply section by a first control, a second control and a third control, wherein, in the first control, the control section is configured to drive the first fluid supply section and the second fluid supply section such that a flow rate of the first fluid supply section is higher than during the third control, and a flow rate of the second fluid supply section is higher than during the second control; wherein, in the second control, the control section is configured to halt the second fluid supply section, or control the flow rate of the second fluid supply section to be lower than the flow rate of the first fluid supply section and drive the first fluid supply section; and wherein, in the third control, the control section is configured to halt the first fluid supply section, or control the flow rate of the first fluid supply section to be lower than the flow rate of the second fluid supply section and drive the second fluid supply section after the first control or the second control. a first fluid supply section including a first liquid supply section configured to supply a liquid and a first gas supply section configured to supply a gas, wherein the first fluid supply section is configured to communicate with a forceps plug pipe sleeve of an endoscope to supply a fluid; a second fluid supply section including a second liquid supply section configured to supply a liquid and a second gas supply section configured to supply a gas, wherein the second fluid supply section is configured to communicate with a suction pipe sleeve of the endoscope to supply a fluid; and a control section configured to control the first fluid supply section and the second fluid supply section by a first control, a second control and a third control, wherein, in the first control, the control section is configured to drive the first fluid supply section and the second fluid supply section such that a flow rate of the first fluid supply section is higher than during the third control, and a flow rate of the second fluid supply section is higher than during the second control; wherein, in the second control, the control section is configured to halt the second fluid supply section, or control the flow rate of the second fluid supply section to be lower than the flow rate of the first fluid supply section and drive the first fluid supply section; and wherein, in the third control, the control section is configured to halt the first fluid supply section, or control the flow rate of the first fluid supply section to be lower than the flow rate of the second fluid supply section and drive the second fluid supply section after the first control or the second control.