Konica Minolta magicolor 1600W Service Manual - Page 63
Developing bias, Developing system
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magicolor 1600W magicolor 1650EN 11. Developing section Theory of Operation Ver. 1.0 Nov. 2008 11.3.4 Developing bias • The developing bias voltage (Vb) is applied to the developing roller so that an adequate amount of toner is attracted onto the surface of the photo conductor. • The developing bias voltage (Vb) is supplied by the High voltage unit (HV). • The developing bias voltage is applied to the developing roller via the supply roller. • The developing bias voltage is also applied to the doctor blade. • The developing bias voltage is turned ON at the same time that the developing motor is energized and turned OFF at the same time that the developing motor is deenergized. COMPOSITION/ OPERATION Developing bias A034T2C556AA 11.3.5 Developing system • The machine employs the single-component, non-contact developing system. • In the non-contact, single-component developing system, the magnetic brush does not rub the surface of the photo conductor (or the image). This prevents a foggy image from occurring and the photo conductor from being worn. Developing roller Photo conductor 4139to2063e2 36