Toner Replenishing Device and Image Forming Apparatus Including Toner Replenishing Device

摘要

A toner replenishing device includes a sub hopper (48) (toner container), a toner detection sensor (72), an agitator (74), and a paddle (75). The sub hopper (48) contains toner. The toner detection sensor (72) is located on a wall surface in the sub hopper (48) and detects whether toner remains at a height at which it is located. The agitator (74) rotates in the sub hopper (48) to clean the detection surface of the toner detection sensor (72). The paddle (75) serves as a toner collecting unit that collects toner to the vicinity of the detection surface of the toner detection sensor (72) in the sub hopper.