44043511TH Rev.2 47 /Oki Data CONFIDENTIAL2.10 Toner Low Detection• StructureThis device consists of a constant speed rotating agitation gear andagitation bar.• DetectionThe minimum height length of stay (OFF time) of a target board which attached thetoner low level state in the end of a churning bar is measured and detected by thesensor.Projection Agitation barAgitation gearOFF time (minimum height) ON time (maximum height)Agitation bar Target boardSensorThe light which emitted light by thesensor reflects with a target board,and received light by the sensor.Therefore, the minimum height lengthof stay is detectable.The light which emitted light by thesensor does not reflect with a targetboard, and does not received lightby the sensor.
