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DC Controller/Power System
The DC Controller PCA coordinates all print engine activities, drives the laser, and
coordinates print data from the Formatter PCA with the image formation process.
The DC Controller also includes both AC and dc power supply and distribution
circuitry. The DC Controller controls the following systems and functions:
•• Print Engine Control
•• Laser and Scanner Drive
•• Paper Motion Photosensors (Paper Out, Paper Registration, and Paper Exit
Sensors)
•• Motor
•• Power System
•• AC Power Distribution
•• DC Power Distribution
•• Overcurrent/Undervoltage Protection
•• SleepMode
•• High Voltage Power Distribution
Figure 5-2 shows the various DC controller loads.
DC Controller Loads
Low-Voltage
Supply
AC Driver
+5V
+12V
Figure 5-2
5 - 4 Functional Overview