132 Theory of operation C7085-90921
DC controller subsystem
The DC controller is responsible for coordinating the entire printing process. The DC controller
enables the drive circuitry for the laser beam and coordinates print data from the formatter with
paper size, laser beam motion, the high voltage system, fuser temperature, and motors. The DC
controller also shares machine status information with the formatter so that proper diagnostic
messages appear on the control panel. An overview is shown in Figure 5-36.
Figure 5-36 DC controller PCB
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