CONTAINER CASE FOR START DEVELOPER

摘要

PURPOSE:To provide a container case for the start developer which can simplify and miniaturize the construction inside a developing device of an image forming device. CONSTITUTION:A partition part 23 between a developing tank 41 and a hopper part 42 is extended on a mounting surface 22 on one edge side in the longitudinal direction of the container case CS of the start developer mounted on top of the developing tank part 41. A residue toner detection sensor 25 is attached in a position inside a hopper 42 where a sensor window is faced when the container case CS of the partition part 23 is mounted on the developing tank 41.