Engine-control system
The control system consists of four components: the high-voltage power supply (HVPS), the low-voltage
power supply (LVPS), the fuser control, and the DC controller. This system controls the laser/scanner,
image-formation, and pickup-and-feed systems. The microprocessor on the DC controller PCA controls
the operating sequence of the product.
Figure 1-1 Engine control system block diagram
Engine-control system
DC controller
High-voltage power supply
Low-voltage power supply
Formatter
Laser scanner system
Image-formation system
Pickup, feed and delivery
system
Fuser control
Accessory
DC controller PCA
The DC controller PCA controls the operation of the product and its components. The DC controller PCA
starts the product operation when the product power is turned on and the power supply sends DC
voltage to the DC controller PCA. After the product enters the standby sequence, the DC controller PCA
sends out various signals to operate motors, solenoids, and other product components based on the
ENWW
Engine-control system
7
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