Fusing Process - Lexmark C500n Service Manual

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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.
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Service Manual