| 摘要 |
<p>PURPOSE:To use only one detection switch in order to detect that a front panel or a prefilter is detached from a main body. CONSTITUTION:A front panel 23 and a prefilter 34 are provided to a main body 21 in a detachable manner. A rib 23d is formed to the front panel 23 and an elastic part 34c is formed to the prefilter 34. The rib 23d is pressed to the elastic part 34c in such a state that the front panel 23 and the prefilter 34 are mounted on the main body 21 to turn a detection switch 37 ON. The application of high voltage to a high voltage ionizing device 31 for removing dust is permitted in the ON-state of the detection switch 37.</p> |
