Housing structure and image forming apparatus

The housing structure includes a lower housing, an upper housing, and a cover. The upper housing is mounted on the lower housing and includes a concave grip portion on a side surface of the upper housing. The cover covers at least a portion of the recessed grip portion of the upper case. The cover is mounted and fixed to the lower case from a direction perpendicular to a side surface of the upper case. The cover includes at least a portion of a temporary securing structure between the upper housing and the cover. The temporary fixing structure temporarily fixes the cover to the upper case when the cover is mounted from a direction perpendicular to a side surface of the upper case. 壳体结构包括下壳体、上壳体和盖。上壳体安装在下壳体上，并且包括在上壳体的侧表面上的凹状把持部。所述盖覆盖所述上壳体的所述凹状把持部的至少一部分。盖从垂直于上壳体的侧表面的方向安装并固定到下壳体。盖包括在上壳体和盖之间的临时固定结构的至少一部分。当从垂直于上壳体的侧表面的方向安装盖时，临时固定结构将盖临时固定到上壳体。