2K8
2-1-15
2-1-5 Transfer/separation section
The transfer/separation section consists of the intermediate transfer unit and the transfer roller unit. The intermediate
transfer unit consists of the transfer cleaning unit, the transfer belt, and the four primary transfer rollers for respective color
drums, and forms a full-color toner image by superimposing and transferring single-color toner images formed on each
drum onto the transfer belt. Also with the left and right ID sensors mounted on the machine frame, the toner density on the
transfer belt is measured. The transfer cleaning unit collects toner remaining on the transfer belt after secondary transfer
and forwards it as waste toner to the waste toner box. The transfer roller unit consists of the secondary transfer roller
mounted to the paper conveying unit and the separation brush. To the secondary transfer roller, DC bias is applied from
the high voltage PWB. The toner image formed on the transfer belt is transferred to the paper by the potential difference
and the paper is separated by curvature separation.
Figure 2-1-16 Transfer/separation section
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(1) Tension roller
(2) Drive roller
(3) Primary transfer roller M
(4) Primary transfer roller C
(5) Primary transfer roller Y
(6) Primary transfer roller K
(7) Transfer belt
(8) Cleaning fur brush
(9) Cleaning roller
(10) Cleaning screw
(11) Secondary transfer roller
(12) Paper chute
(13) Separation needle
(14) Left ID sensor/Right ID sensor
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General
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