KX-MC6020RU, KX-FAP317A, KX-FAB318A - Panasonic Fax Service Manual (repair manual). Page 126

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After toner image has been applied to the paper, it passes through the fuser. When the BK motor starts to rotate, the Halogen Lamp
is turned on, heating the heat roller. As a result, the fuser belt, contacted with the heat roller surface, is heated by the heat roller. A
heated fuser belt melts the toner and pressure drives it into the paper. The melted toner bonds to the paper. After fusing, the paper
advances to the output tray. When the printer is idle, the Halogen Lamp is turned off and the fuser belt is not heated. At the 600 dpi
printing mode, the fuser belt is set to approximately 172

°C. This fuser belt temperature varies depending on 1200 dpi printing mode,

thick paper printing mode, transparency printing mode, etc. The fuser unit has the paper ejection sensor, which detects the sheet of
paper as it leaves the fuser.