Abstract: A dry toner replenishing apparatus is provided for periodically replenishing dry toner into a storage receptacle of a copying machine. The apparatus includes a toner material supply container adopted to be removably received within an opening in the copier for dispensing developing material into the storage receptacle. The supply container has a dispensing opening and a closure device normally closing the opening. A cooperating connecting structure on the copying machine limits pivotal movement of the supply container between an insertion and a dispensing position, and a device on the copying machine engages the closure device on the supply container to open the closure device during movement of the supply container from the insertion position to the dispensing position.

Abstract: A fire extinguishing device for use with a heat fusing apparatus in an electrophotocopying machine, including a roller movably mounted above a copy paper conveyor associated with and located downstream of the heat fusing apparatus, a moving device for moving the roller into rolling contact with the conveyor when an abnormality is detected in the fusing apparatus during the copying operation, and a device for maintaining the roller out of rolling contact with the conveyor when no abnormality in the fusing apparatus is detected during the copying operation.

Abstract: A fire extinguishing device for use with a heat fusing apparatus in an electrophotocopying machine, comprising a roller movably mounted above a copy paper conveyor associated with and located downstream of the heat fusing apparatus, means for moving the roller into rolling contact with the conveyor when an abnormality is detected in the fusing apparatus during the copying operation, and means for maintaining the roller out of rolling contact with the conveyor when no abnormality in the fusing apparatus is detected during the copying operation.