Developer cartridge and image forming apparatus using the same

Developer cartridge and image forming apparatus using the same

Developer cartridge having an automatic lid closing mechanism

Developer cartridge having easily removable sealing material

Developer cleaning device for electrophotography

Developer collection device for a copying machine

Developer concentration controlling device

Developer concentration detecting and replenishment device

Developer container and a developing apparatus usable with the s

Developer container for an image recording apparatus

Developer container for stably replenishing developer to develop

Developer container, developer unit and process cartridge having

Developer conveyor device

Developer density detecting apparatus

Developer density detection device

Developer depositing unit for an image forming apparatus

Developer detecting device

Developer device that gradually replaces degraded developer with

Developer dispenser having a developer mover for transporting de

Developer dispensing apparatus with a spring element hold down s