Laser and scanner drive

Based on information received from the formatter, the dc 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 82 for more information.

Paper-motion monitoring and control

The dc 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 91.

Solenoids, sensors, clutches, and switches

See “Dc controller inputs and outputs” on page 252.

Engine test

See “Engine test” on page 190.

76 Functional information

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HP 5100LE manual Laser and scanner drive, Paper-motion monitoring and control, Solenoids, sensors, clutches, and switches