| 摘要 |
PURPOSE:To reduce the number of switches with reference to the number of doors by simple constitution by providing a switch for making an image forming device in a non-actuated state and an inhibiting means for inhibiting operation for closing the door. CONSTITUTION:Owing to structure that a front door 21 can not be closed when an upper door 50 is not closed, that means, when the front door 21, a paper ejection door 22 and a paper supply door 23 are closed altogether, the switch 24 is turned on and a machine is made in the actuated state only when four doors are all closed. When at least one of the doors 21, 22 and 23 is opened in a state where all the doors are closed and the machine is in the actuated state, the switch 211 is turned off and the actuation is stopped. By such simple mechanism, the number of door switches with reference to the plural doors is reduced, and cost is reduced in comparison with the case that the same number of switches as the doors are used. In comparison with the device having a complicated mechanism, the number of parts is reduced and reliability is improved. |
