| 摘要 |
PROBLEM TO BE SOLVED: To reduces costs of an interlock by reducing costs of a closure member such as a covering door or the like. SOLUTION: A lever-like obstructing member 44 is set inside the covering door (closure member) 15 of a laser copying machine, which disables mounting/ demounting an inner unit when set to a first position and enables the mounting/ demounting when set to a second position. When the covering door is closed while the obstructing member 44 is at the second position, the covering door hits the obstructing member 44, whereby the closure operation of the covering door is obstructed. If the covering door is forcibly closed, the obstructing member elastically deforms the covering door, prohibiting a projection 40 from entering an opening 42 of an inner cover member 41. The covering door 15 is thus prevented from being closed and a switch member 43 is prevented from being turned on. |
