To provide an object processing apparatus or a storage medium processor capable of quickly and easily being restored even if clogged with an object.

The object processing apparatus 1 for receiving and processing an object includes a casing 3 comprising a first casing part 10 and a second casing part 20 openably and closably connected to each other by a casing connection 16; a processing part 12 comprising a first processing base 11 and a second processing base 22 openably and closably connected to each other by a base connection 18, and provided inside the casing 3 for performing a predetermined process on the object; and an opening and closing means for opening or closing the first processing base 11 and the second processing base 22 as the first casing part 10 and the second casing part 20 are opened or closed.