Samsung MultiXpress K4 Series Service Manual page 94

2. Product Specifications and Description
The OPE Unit displays the status of the system by using the WSVGA TFT LCD in response to user actions or the main
controller.
The soft power switch in the OPE Unit is used to safely shut down the system power.
The ADF Controller controls some mechanisms required to scan by feeder continuously and communicates with the main
controller to synchronize the scanning timing.
The HVPS board generates high-voltage channels and controls it. The FDB board controls the fuser lamp On/Off. The
SMPS board generates the 5V, 24V for system power.
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