Lexmark CX825 Service Manual page 1438

Fuse
Even if the toner image is already on the paper, the toner particles are not yet permanently bonded to the
surface. For the final part of printing, the paper is transported to the fuser where heat and pressure are applied
to it. As a result, the toner particles melt and permanently fuse with the paper, completing the print process.
The print cycle repeats for the succeeding pages.
1 Decurler rollers
2 Fuser rollers
Appendix C: Theory of operation
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