PURPOSE: To enable surely replenishing toner with a simple operation, without scattering the toner, at the time of replenishing the toner, preventing the defec tive replenishment of toner due to such as aggregation of the toner, and control ling the replenishment frequency so as to match the frequency with a life of an electrophotographic photoreceptor or the like.
CONSTITUTION: This process cartridge is provided with rotary blades 34 and 35 for holding a developer replenishment container 500 on opposing walls of a loading part 3c, and a tearing member 33 for tearing seals 52 and 53 of the developer replenishment container 500 on center part. The rotary blade 34 is rotated while linked with opening of the developer container cap 36, an open/ closing control member 37 is engaged with a hook 36a of the developer container cap 36 based on rotation frequency of the rotary blade 35, and the toner replenishment exceeding a specified rotation frequency is inhibited. The smooth falling of the toner is allowed at the time of replenishment of the toner, by making a gap between a case 50 and a tearing member 33 to a specified width.
YAMAUCHI KAZUMI
OGATA HIROAKI
ISHII YASUYUKI
YAMAZAKI MICHIHITO
KISU HIROKI
