| 主权项 |
1. An image forming apparatus comprising:
an option board mounting part in which a board for an option device is mounted; and an external cover that covers the option board mounting part, wherein the option board mounting part is provided in a housing, the external cover includes a first cover member and a second cover member disposed adjacent to each other in a vertical direction, the first cover member has an overlapping part that overlaps with an inner side of the second cover member in an inside-outside direction of the image forming apparatus, the overlapping part is a wall part protruding in a direction of the second cover member, the second cover member has a protruding part formed on a surface of the inner side of the second cover member, the protruding part having a side surface that abuts against a side surface of the wall part in a right and left direction of the first and second cover members, the protruding part abuts the side surface of the wall part when the first cover member and the second cover member are disposed adjacent to each other, so as to position the second cover member and the first cover member with respect to each other in the right and left direction of the first and second cover members the first cover member and the second cover member each include a flat plate part extending in the right and left direction of the first and second cover members and the vertical direction, and a curved part extending from an end portion of one side of the flat plate part in the right and left direction of the first and second cover members, the wall part including the overlapping part protrudes from an end portion of a second cover member side of the first cover member, the first cover member has a first engagement part at an end portion of another side of the flat plate part in the right and left direction of the first cover member, the first engagement part engaging with an engaged part formed in the housing, and the second cover member has a second engagement part at an end portion of another side of the flat plate part in the right and left direction of the second cover member, the second engagement part engaging with an engaged part formed in the housing. |
