| 摘要 |
PURPOSE:To rapidly, easily and surely return back the knob of a slide type volume capable of consecutively adjusting an image forming condition to a reference position for adjusting the image forming condition. CONSTITUTION:The slide type volume 1 has the knob 1c supported so as to be freely slid in a main body part 1a and can consecutively adjust exposure by moving and sliding the knob 1c; and it is provided with the notch 1e of the board to be slid 1d of a main body part 1a and the bent part 1h of the leaf spring 1g of the knob 1c which are load against the sliding movement of the knob 1c only when the knob 1c passes a previously set position in the middle of the sliding direction of the main body part 1a. |
