Lexmark CX725 Service Manual page 536

After passing the sensor (duplex staging), the duplex aligner roller drives the paper to the isolation nip and to
the sensor (MPF/pass‑through) where the leading-edge position of the paper is again updated. When the paper
reaches the sensor (MPF/pass‑through) in the isolation unit, the paper is pushed to the deskew rollers. As the
paper reaches the sensor (input) after the registration process, the motor (aligner) adjusts its speed to line up
the leading edge exactly with the belt image at the second transfer. After the paper passes through the deskew
rollers, it goes through the transfer and fusing process again. The paper is then passed through the exit roller
and moved to the output bin.
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# Description
1 Sensor (bin full)
2 Output roller
3 Sensor (input)
4 Deskew roller
5 Alternate isolation roller
6 Sensor (MPF/pass‑through)
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5
6
Appendix C: Theory of operation
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