Konica Minolta BIZHUB C3100P Service Manual page 248

(2) 2 sheet operation
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O THEORY OF OPERATION bizhub C3100P > 14. DUPLEX
1. A sheet of paper is taken up and fed in and the image of the
second page of the original is printed.
2. The switchback guide operates so as to transport the paper to the
switchback section.
Impapertely before the paper leaves the paper switchback roller,
the direction of rotation of the switchback roller is reversed and the
paper is transported toward and into the duplex section.
3. While passing through the duplex section, the paper stops
temporarily at the re-feeding position.
At the same time, the second sheet of paper is taken up and fed
in.
4. The second sheet of paper is taken up and fed in and the image of
the fourth page of the original is printed.
The first sheet of paper stops temporarily at the re-feeding
position.
5. The first sheet of paper is subject to skew correction at the
registration roller section before being re-fed.
The second sheet of paper is transported into the duplex section
by the switchback roller. At the same time, the third sheet of paper
is taken up and fed in.
O-47
SECTION