Konica Minolta A00F011 Service Manual - Page 77
st transfer belt cleaning control, Operation timing, 1st transfer belt backward rotation control
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magicolor 4650EN magicolor 4650DN 13. Transfer section (1st transfer) Theory of operation Ver.1.0 Nov. 2007 13.3.7 1st transfer belt cleaning control • If there is a possibility of the main body being stopped with toner left on the surface of the transfer belt between the cleaning blade position and the 2nd transfer position (due to a media misfeed or malfunction), the Transport motor is energized to turn the transfer belt. The residual toner is thereby removed from the transfer belt. • No forced cleaning sequence is carried out to clean the entire surface of the transfer belt. A. Operation timing • The 1st transfer cleaning sequence is carried out before the 2nd transfer cleaning as part of the initial operation sequence. • The 1st transfer cleaning sequence is carried out before the 2nd transfer cleaning opera- tion is performed by the ATVC control system. 4138to2049c1 1st transfer belt cleaning area 13.3.8 1st transfer belt backward rotation control • To prevent media dust, toner, and other foreign matter from being wedged in the cleaning blade while the transfer belt remains stationary, the transfer belt is turned backward so that the foreign matter can be removed. • Once the transfer belt is started turning backward, this operation takes precedence over any other request for energizing the Transport motor. Such a request is honored after the backward rotation control is completed. A. Operation timing • The 1st transfer belt backward rotation is performed after a predetermined number of printed pages are produced after the execution of the last backward rotation control. Composition/Operation 42