Toner cartridge having a toner agitator and a reciprocally moving member coupled to the agitator, and an image forming apparatus

摘要

A toner cartridge has a toner-agitating member that agitates the toner to be supplied to a developing unit. The toner cartridge has at least a part of a detecting mechanism that transmits the motion of the agitating member to detect an amount of the remaining toner in the toner cartridge. The detecting mechanism has a sensor rod. The sensor rod has one end that rotatably engages the agitating member and the other end to which a detector is attached. At least a part of the motion-transmitting section is made of a material that when the part receives a pressure greater than a predetermined value, the part absorbs the pressure.