A developing device having a toner container in which a toner agitator and a cleaning member is provided. The toner agitator agitates the toner in the toner container and transport the toner into a developing chamber. The toner container has a pair of light transmission windows through which light passes....http://www.google.fr/patents/US6337956?utm_source=gb-gplus-shareBrevet US6337956 - Developing device having toner agitation member and cleaning member cleaning light transmission window
Developing device having toner agitation member and cleaning member cleaning ...
