Service Manual for OKIPAGE 8zChapter 2 Operation DescriptionPage: 172.7 Toner Low DetectionHardware configuration of toner sensorlThe figure below shows the hardware configuration of the toner sensor.Hardware Configuration of Toner SensorToner detection methodl(1) Toner sensor monitoring conditions are shown in the figure below.Caution: The toner sensor is not monitored when the drum is inactive.(a) When the toner-low state continues twice, Toner Low occurs. (This state is monitored at a cycle of 40milliseconds.)(b) When the toner-full state continues twice, Toner Low is released. (This state is monitored at a cycle of 40milliseconds.)(c) When the toner sensor does not change over two cycles (T x 2), the toner sensor alarm state occurs.(d) After the EP unit has been replaced (after the drum counter has been reset), Toner Low is not detected when thedrum counter indicates 1 to 100 counts.(2) The basic rotation cycle of the toner sensor is as follows:T timeBasic rotation cycle of toner sensor 2.5 sec.Toner low time t1 > 0.6 sec.Toner full time 0.6 > t1 > 0.14 sec.
