Lexmark 5021-0XX - Manual (Page 72)

1-46 Service Manual
5021-0XX
Fusing process
1. When the paper reaches the fuser, the toner image is
transferred on the paper, but not yet fused to the paper.
2. The transported paper passes between the heated roller and
the back-up roller. The heated roller’s temperature is
approximately 338°F (170°C).
3. When the paper with toner image passes between the heated
roller and the backup roller, the heat from the heated roller in
combination with the pressure between the two rollers, melts
the toner, fusing it to the paper.
4. The fused paper then separates from the rollers and is
transported out of the printer into the output bin or is routed
back into the printer for printing on the other side of the duplex
print.