Lexmark XM3250 Service Manual page 447

The deskew shutter along the first input roller corrects the skew on the paper.
The first input roller feeds the paper to the transfer roller. At the transfer roller, the photoconductor drum
transfers the developed image to the paper to create the printed image.
As the paper passes the fuser, heat and pressure are applied to permanently bond the toner to the paper.
After printing, the printer ejects the paper by the exit roller.
Two‑sided print job
After the first side is printed, the paper is diverted to the top of the paper exit roller. The duplex path opens,
and then the paper reverses direction to get its opposite page printed.
The paper travels along the duplex path until it reenters the second input roller. From there, the paper continues
its path until the print job is done.
1 Duplex rear roller
2 Duplex front roller
Theory of operation
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