Patent ID: 8388522

Claim:
An endoscope system, comprising: a two-stage depression button provided in an operation portion of an endoscope; a first switch disposed at a first stage depressing operation position in the depression button and configured so as to change from off to on by the first stage depressing operation and maintain an on state after the first stage; a second switch disposed at a second stage depressing operation position in the depression button and configured so as to change from off to on by the second stage depressing operation; and control means which performs control so as to provide a first function of the endoscope when the first switch is on and provide a second function of the endoscope without providing the first function regardless of a state of the first switch when the second switch is on, the control means performing control so as to provide the first function with a delay of a predetermined time period so long as the first switch does not change from on to off within the predetermined time period when the first switch changes from off to on, the predetermined time period being longer than a time period expected to be required for the depression button to move in a stroke from the first stage to the second stage; wherein the first function is an air feeding function and the second function is a water feeding function.