Controlling The Intensity Of Laser Light; Controlling The Laser Scanner Motor - Canon imageRUNNER 2270 Service Manual

Chapter 6

6.3.2 Controlling the Intensity of Laser Light

6.3.2.1 APC Control
The laser light hitting the photodiode included in the laserdiode is monitored and is
controlled so that it remains a specific level at all times.

6.3.3 Controlling the Laser Scanner Motor

6.3.3.1 Controlling the Laser Scanner Motor

The laser scanner motor is controlled with reference to the laser scanner motor revolution
signal (FG signal).
The revolution of the laser scanner motor is controlled by means of the acceleration signal
(ACC signal) and the deceleration signal (DEC signal).
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6-10
DC-CON
F-6-7
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0006-5976
0006-5978