An imaging apparatus includes a front lens group having a front lens element and a reflector, in that order from an object side. The shaft body is connected between a front side fixed body fixed to a straightening plate joined to the housing at the front of the impeller and a rear side fixed body fixed to a diffuser joined to the housing at the rear of the impeller. Mounted to the truck towable trailer is a container adapted to accept and dewater a sand-water slurry pumped from the oil storage tank. The second idlers are positioned on a same side as the conveyor belt for horizontal alignment of the conveyor belt. The branched resin in the shell may prevent the crystalline resin from migrating to the toner surface.