• The thermoswitch near the center does not necessarily work earlier than the other thermoswitch. The
ends of the hot roller can be much hotter than the center when, for example, paper of a small size is
continuously going through the fusing unit.
Feature 5:
The BICU disables machine operation when the exhaust fan is not functioning normally. In a case like this,
the copier displays SC590. Note that defective exhaust fans may cause overheating.
Image Fusing and Paper Exit
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