Canon NP6330 Service Manual page 73

e. Output Timing of Motor Control Signals
The scanning motor (M2) is controlled so that the step angle occurring when it
rotates is small by incrementally increasing the current of the drive pulse command
(SCA, SCA*, SCB, SCB*) generated by the motor driver 1 PCB (high speed response,
low amplitude drive, low noise drive).
Figure 3-303 shows the relationship between the size (current) of the drive pulse
signal and the timing.
SCRET
SCMD
SCCLK
SCM1
SCM2
SCA
SCA
*
SCB
*
SCB*
COPYRIGHT © 1997 CANON INC.
Figure 3-303
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 3 EXPOSURE SYSTEM
3-9