4. Mechanical operations
Theory of operation ver. 1.0 Aug. 2007
10
Duplex Option
Composition/Operation
4.3.2
Operations in 2-sided printing with two sheets of paper resident in the sys-
tem
2
Operation 1
• The first sheet of paper is taken up and fed in from the
main unit drawer and the main unit starts the first print
cycle to produce the print image of the second page of the
original.
Paper Exit Roller
2
Operation 2
• Immediately before the first 1-sided print leaves the paper
exit roller, the direction of rotation of the paper exit roller is
reversed and the first 1-sided print is transported toward
and into the duplex option.
• At the same time, the second sheet of paper is taken up
and fed into the main unit.
4
2
Operation 3
• The main unit carries out the first print cycle for the second
sheet of paper to produce the print image of the fourth
page of the original.
• At the same time, the first 1-sided print is transported
through the duplex option.
Operation 4
• The main unit produces the print image of the first page of
the original on the first 1-sided print that has been fed
through the duplex option.
• At the same time, the second sheet of paper is subjected
to a switchback sequence at the exit section and fed into
the duplex option.
• At the same time, the third sheet of paper is taken up and
fed into the main unit.
1
2
6
4
Confidential – for internal use only, do not distribute
