Patent ID: 9020375
Filing Date: 2015-04-28
Classification: G03G

Abstract:
1. A toner resupply device for resupplying toner from a hopper to a developing device; the toner resupply device comprising: a detector plate for detecting a surface of toner stored in the hopper; a douser that moves together with the detector plate; a fixing plate for fixing the detector plate and the douser integrally; and a toner sensor for detecting a phase of the douser, wherein the douser comprises a light-blocking surface that blocks light to be detected by the toner sensor, and a shaft extending in an axial direction crossing the light-blocking surface, the shaft being inserted in a hole made in the detector plate; wherein the shaft has a groove in which the fixing plate is locked, the groove extending in a direction crossing the axial direction; and wherein the fixing plate in a state of being locked in the groove pushes the shaft in the axial direction, thereby fixing the detector plate and the douser to each other.