PURPOSE: To improve operativity and reduce a space and to facilitate maintenance and inspection by taking a mechanism which is part of a device out of a front surface part through a guard rail, and turning the mechanism to the side of an opening part and moving it.

CONSTITUTION: The front surface part cover 23 of the main body 1 of an electrophotographic recording device is fallen down to the front side to open the front part of the main body 1. Then, some of mechanisms such as a photosensitive body 2, an electrostatic charging device 3, a developing device 5, a transfer electrode 6, a separation electrode 7, a conveyer roller 9, a conveyer belt support bracket 12, a photosensitive body bracket 15, etc., which are inside are seen. Some of those mechanisms are fitted to a base 16-A fixed to a slide rack 16 with a rotary fulcrum pin 21 and a fixed pin 22 by using the brackets 12 and 15. Further, a fixed guide member 18, a moving guide member 19, and an intermediate guide member 20 are fitted to the fixed rack 1A of the main body 1 and the member 19 is fixed to the rack 16. Then, some of the mechanisms of the device are taken out to in front of the opening part and rotated and moved.