Laser and Scanner Drive Based on information received from the Formatter, the Engine Controller Board sends signals to the Laser Scanner Assembly to modulate the Laser Diode on and off and to drive the Laser Scanner motor. See “Image Formation System” on page 5-22 for more information. Paper Motion Monitoring and Control The Engine Controller Board controls paper motion by continuously monitoring the various Paper Sensors and coordinating paper movement with the other print processes. For more information, see “Paper Feed System” on page 5-33. Solenoids, Sensors, Clutches, and Switches See “Engine Controller Board Inputs and Outputs” on page 5-8.
Engine Test Print See “Engine Test” on page 7-11. 5-12 Functional Information