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Fixing Section
In this section, the toner, which has been transferred onto the paper from the drum in
the transfer section, is fused to the paper.
Xenon lamp
Paper
Melted and fixed toner
Unfixed toner
Figure 2–15. Fixing
Flash Fixing
This print engine uses a xenon lamp to provide flash light (light-emitting frequency:
3.8 Hz) on the paper to fix the toner. If in this process, the energy of the flash is too
strong, the toner is heated rapidly and begins to boil and upon coagulation, the
central portion of the toner evaporates, leaving just the peripheral portion. The toner
is thus fused in a crater-like manner and the print density becomes low. This is called
the runaway phenomenon. In order to prevent this runaway phenomenon, the
light-emitting energy of the xenon lamp is maintained at a relatively low level
2
(approximately 2.6 J/cm
), and each fusion area is exposed to multiple flashes at the
fixing section of this print engine.
Principles of Operation
2–17
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